Multi-way valve

Abstract

A multi-way valve adapted to control fluid flow to different thermal fluid circuits includes a valve housing, a valve flow controller, and a sealing system. A valve flow controller is disposed in the valve housing to control flow through the valve housing. Each sealing system is configured to seal between the valve housing and one of the valve rotors included in the valve flow controller.

Description

[0001] Priority claim

[0002] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 454,447, filed on March 24, 2023, the disclosure of which is now expressly incorporated herein by reference. Technical Field

[0003] The utility model relates to a multi-way valve, in particular to a multi-way valve for controlling the flow of heating and / or cooling fluid to various thermal fluid circuits in a vehicle. More specifically, the utility model relates to an electromechanical multi-way valve. Background Art

[0004] Multi-way valves are used to control fluid flow to various thermal fluid circuits in a vehicle. However, there is a need for multi-way valves with an increased number of possible flow paths and improved sealing. Utility Model Content

[0005] To this end, the utility model provides a multi-way valve, which can control the flow of heating and / or cooling fluid to different thermal fluid circuits in a vehicle through improved sealing. The multi-way valve may include a valve housing and a valve flow controller located in the valve housing to control the flow of fluid through the valve housing. The flow of heating and / or cooling fluid can be controlled to guide the fluid to different thermal fluid circuits in the vehicle.

[0006] According to one aspect of the present invention, the valve housing may be formed to define a first valve chamber, a second valve chamber in fluid communication with the first valve chamber, and a plurality of orifices in fluid communication with at least one of the first valve chamber and the second valve chamber. A valve rotor included in the valve flow controller may be disposed in the first valve chamber, and another valve rotor included in the valve flow controller may be disposed in the second valve chamber.

[0007] According to one aspect of the present invention, the valve housing may include a valve housing body and a housing cover. The valve housing body may be formed to define a first valve chamber, a second valve chamber in fluid communication with the first valve chamber, and a plurality of orifices in fluid communication with at least one of the first valve chamber and the second valve chamber. The housing cover may be coupled to the valve housing body to close the openings of the first valve chamber and the second valve chamber.

[0008] According to one aspect of the present disclosure, a valve flow controller may include a first valve rotor disposed in a first valve chamber of a valve housing body and a second valve rotor disposed in a second valve chamber. The first valve rotor may be configured to rotate relative to the valve housing about a first rotor axis, and the second valve rotor may be configured to rotate relative to the valve housing about a second rotor axis. The second rotor axis may be parallel to the first rotor axis.

[0009] According to one aspect of the present disclosure, a first valve rotor and a second valve rotor may cooperate to define a plurality of flow paths. When the first valve rotor and the second valve rotor are rotated about their respective rotor axes to a plurality of different predetermined positions, the first valve rotor and the second valve rotor may cooperate to define a plurality of flow paths to control the flow of a fluid through a valve housing.

[0010] According to one aspect of the present invention, the first valve rotor may include a plurality of first rotor through holes, and the second valve rotor may include a plurality of second rotor through holes. Each of the first rotor through holes may extend axially through the first valve rotor relative to the first rotor axis. Each of the plurality of second rotor through holes may extend axially through the second valve rotor relative to the second rotor axis.

[0011] According to one aspect of the present invention, the first valve rotor may include a first valve rotor body, a first valve rotor shaft, and a first valve rotor cover. The first valve rotor body may extend circumferentially around the first rotor axis. The first valve rotor shaft may extend axially away from the first valve rotor body along the first rotor axis. The first valve rotor cover may be coupled to the first valve rotor body to rotate therewith.

[0012] According to one aspect of the present invention, the first valve rotor body may be formed to include a plurality of first rotor through holes. Each of the plurality of first rotor through holes may extend axially through the first valve rotor body relative to the first rotor axis. When the first valve rotor is in one of a plurality of different predetermined positions, the plurality of first rotor through holes may be aligned with different orifices included in the plurality of orifices to allow fluid to flow therethrough.

[0013] According to an aspect of the present invention, the first valve rotor cover may be formed to define at least one chamber. When the first valve rotor cover is coupled to the first valve rotor body, the at least one chamber may extend around adjacent first rotor through-holes in the first valve rotor body so as to interconnect adjacent first rotor through-holes in fluid communication with each other.

[0014] According to one aspect of the utility model, the first valve rotor body may include a body plate extending circumferentially around the first rotor axis and defining a plurality of first rotor through holes, an outer wall extending circumferentially around the outer edge of the body plate and axially away from the body plate in the same direction as the first valve rotor axis, and an inner wall extending circumferentially around the first rotor axis and axially away from the body plate at a position radially inward of the outer wall. The first valve rotor cover may be located between the outer wall and the inner wall of the first valve rotor body.

[0015] According to one aspect of the utility model, the first valve rotor cover may include a cover plate and at least one diverter housing. The cover plate may extend circumferentially around the first rotor axis. The diverter housing may define at least one chamber.

[0016] According to one aspect of the present invention, the first valve rotor body may further include a plurality of deflectable locking tabs. When the first valve rotor cover is in an engaged position on the first valve rotor body, the plurality of deflectable locking tabs may be configured to engage with the valve rotor cover, thereby preventing axial movement of the first valve rotor cover relative to the first valve rotor body when the first valve rotor cover is in the engaged position.

[0017] According to one aspect of the present invention, at least one of the plurality of deflectable locking tabs may be located on an inner wall of the first valve rotor body. According to one aspect of the present invention, at least one of the plurality of deflectable locking tabs may be located on an outer wall of the first valve rotor body.

[0018] According to an aspect of the present invention, the second valve rotor may include a second valve rotor plate, a second valve rotor wall, and a second valve rotor shaft. The second valve rotor plate may extend circumferentially around the second rotor axis. The second valve rotor wall may extend circumferentially around the outer edge of the second valve rotor plate and extend axially from the second valve rotor plate. The second valve rotor shaft may extend away from the second valve rotor plate along the second rotor axis in the same direction as the second valve rotor wall.

[0019] According to one aspect of the present invention, the second valve rotor plate may be formed to include a plurality of second rotor through holes. Each of the plurality of second rotor through holes may extend axially through the second valve rotor plate relative to the second rotor axis. When the second valve rotor is in one of a plurality of different predetermined positions, the plurality of second rotor through holes may at least partially align with different orifices included in the plurality of orifices to allow fluid to flow therethrough. In an exemplary embodiment, one of the plurality of second rotor through holes may at least partially extend circumferentially around the second valve axis.

[0020] According to an aspect of the utility model, the multi-way valve may further include a first sealing system, the first sealing system including a plurality of first sealing members, the first sealing members being coupled to the first valve rotor to rotate together with the first valve rotor and engaging with an axially facing surface of the valve housing body. At least one first sealing member included in the plurality of first sealing members may surround an adjacent first valve rotor through hole in the first valve rotor body.

[0021] According to one aspect of the present invention, the first sealing system may also include a first biasing assembly, which is configured to selectively apply an axial force on the first valve rotor to push a plurality of first sealing components connected to the first valve rotor toward the valve housing body when the first valve rotor is in one of a plurality of different predetermined positions to improve the seal between the first valve rotor and the valve housing body.

[0022] According to an aspect of the utility model, the multi-way valve may further include a first sealing system, the first sealing system including a first sealing member, the first sealing member being coupled to the first valve rotor to rotate together with the first valve rotor and engaging with the axially facing surface of the valve housing body. The first sealing member may include: a sealing base axially located between the first valve rotor body and the first valve rotor cover and extending circumferentially around the valve axis; and a plurality of sealing rings, each of which extends axially from the sealing base through one of the plurality of first rotor through holes to engage with the axially facing surface of the valve housing body. The first sealing member may be formed to define a plurality of openings, each of which extends through one of the sealing base and the sealing ring.

[0023] According to one aspect of the present invention, the first sealing system may also include a first biasing assembly, which is configured to selectively apply an axial force on the first valve rotor when the first valve rotor is in one of a plurality of different predetermined positions to push the first sealing member toward the valve housing body, thereby improving the seal between the first valve rotor and the valve housing body.

[0024] According to one aspect of the present disclosure, the first biasing assembly may include a cam ramp on an axially facing surface of a housing cover of the valve housing and a cam surface on the first valve rotor. The cam surface may be configured to engage the cam ramp on the upper housing cover when the first valve rotor rotates about the first rotor axis to the plurality of different predetermined positions.

[0025] According to one aspect of the utility model, the multi-way valve may further include a second sealing system. The second sealing system may include: a second sealing member axially arranged between the valve housing body and the second valve rotor; and a second biasing assembly configured to apply an axial force on the second valve rotor to push the second valve rotor toward the second sealing member.

[0026] According to one aspect of the present invention, the second biasing assembly may include a biasing member arranged around the second valve rotor shaft, a biasing member cover arranged on the biasing member and coupled to the second valve rotor shaft to rotate therewith, and a flange formed on the upper housing cover. When the second valve rotor is arranged in the second valve chamber, the flange may engage the biasing member cover when the housing cover is coupled to the valve housing body to load the second biasing assembly.

[0027] With the multi-way valve of the present disclosure, a multi-way valve having an increased number of flow paths and improved sealing is provided. The first valve rotor and the second valve rotor cooperate to define an increased number of flow paths through the valve housing. This arrangement improves the sealing between the plurality of apertures in the valve housing body and the through holes in the first valve rotor and the second valve rotor, not only because the flow paths are simpler, but also because the first sealing system and the second sealing system increase the engagement of the valve rotor with the corresponding seal located between the valve rotor and the valve housing to reduce leakage.

[0028]

[0013] Other features of the disclosure will become apparent to those skilled in the art upon consideration of the illustrative embodiments illustrating the best mode presently recognized of carrying out the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] DETAILED DESCRIPTION OF THE EMBODIMENTS Reference is made specifically to the accompanying drawings, in which:

[0030] Figure 1 is a perspective schematic diagram of a multi-way valve configured to control fluid flow to various thermal fluid circuits in a vehicle;

[0031] Figure 2 yes Figure 1 The exploded view of a multi-way valve is shown, showing that the multi-way valve includes a valve housing, a valve flow controller, and a first sealing system and a second sealing system, wherein the first sealing system and the second sealing system are configured to seal between the valve housing and a valve rotor of the valve flow controller, showing that the valve housing includes: a valve housing body having a first valve chamber and a second valve chamber; an upper valve housing cover configured to be connected to the valve housing body to close the first valve chamber and the second valve chamber; and a lower valve housing cover connected to the valve housing body opposite to the upper valve housing cover to close the bottom opening, thereby forming a connecting channel between the first valve chamber and the second valve chamber, and further showing the valve flow controller, which includes: a first valve rotor, also called a main valve rotor, which is configured to be arranged in the first valve chamber; a second valve rotor, also called a throttle valve rotor, which is configured to be arranged in the second valve chamber; and an actuator, connected to the main valve rotor and the throttle valve rotor to drive the main valve rotor and the throttle valve rotor to rotate around the corresponding rotor axes to different predetermined positions to form multiple flow paths through the valve housing body of the valve housing, such as FIG. 16A to FIG. 16J As shown;

[0032] Figure 3 yes Figure 1a perspective view of a multi-way valve with an upper housing cover removed to show a main valve rotor disposed in a first valve chamber and a throttle valve rotor disposed in a second valve chamber, and further showing that the main valve rotor is formed to define a plurality of main rotor through holes, each of which extends axially through the main valve rotor to open to an orifice formed in a valve housing body, and the throttle valve rotor is formed to define throttle valve through holes, each of which extends axially through the throttle valve rotor to open to an orifice formed in the valve housing body;

[0033] Figure 4 yes Figure 1 a cross-sectional view of a multi-way valve, showing that when the main valve rotor and the throttle valve rotor are in one of different predetermined positions to allow fluid to flow therethrough, the main valve rotor through hole formed in the main valve rotor and the throttle valve rotor through hole formed in the throttle valve rotor are aligned with the orifices in the valve housing body; showing that the first sealing system includes a plurality of first sealing members, the plurality of first sealing members are formed to rotate together with the main valve rotor to provide a seal between the main valve rotor and the valve housing body; and further showing that the lower valve housing cover is coupled to the valve housing body to form a connecting passage extending between an open orifice in the first valve chamber and another orifice leading to the second valve chamber, so that the first valve chamber and the second valve chamber are in fluid communication;

[0034] Figure 4A yes Figure 4 a detailed view of the main valve rotor showing one of the first sealing members formed on the main valve rotor extending from the main valve rotor and engaging the valve housing body to provide a seal between the main valve rotor and the valve housing body to reduce leakage between the main valve rotor and the valve housing body when fluid flows through the first rotor through hole into the orifice in the valve housing body of the valve housing;

[0035] Figure 4B yes Figure 4 Detailed view of the second sealing system showing that the second biasing assembly includes a second biasing assembly constrained between the throttle rotor and the valve housing cover such that the second biasing assembly exerts an axial force on the throttle rotor;

[0036] Figure 5 is included in Figure 3An exploded view of a main valve rotor in a valve flow controller of a multi-way valve is shown in the figure, showing that the main valve rotor includes: a main valve rotor body, which extends circumferentially around a first rotor axis and is formed to include a plurality of main rotor through holes; a main valve rotor shaft, which extends axially away from the main valve rotor body along the first rotor axis and is configured to be connected to an actuator; and a main valve rotor cover, which is configured to be connected to the main valve rotor body so that a plurality of chambers formed in the main valve rotor cover extend around adjacent through holes in the main valve rotor body, thereby interconnecting adjacent through holes that are fluidly connected to each other when the valve rotor cover is connected to the main valve rotor body, the figure shows that the plurality of first sealing members extend around separate main rotor through holes formed in the main valve rotor body or around adjacent main rotor through holes, and further shows that the main valve rotor body has a locking plate, and when the main valve rotor cover is in an engaged position on the main valve rotor body, the locking plate engages the main valve rotor cover to prevent axial movement of the main valve rotor cover relative to the main valve rotor body, such as Figure 4 and Figure 4A As shown;

[0037] Figure 6 is included in Figure 3 an exploded view of an upper housing end cover and a main valve rotor in a multi-way valve, showing that the first sealing system also includes a first biasing assembly, the first biasing assembly being configured to selectively apply an axial force on the main valve rotor to push the main valve rotor toward a plurality of orifices formed in the valve housing body, thereby pushing a first sealing member of the first sealing system toward the valve housing body and engaging with a bottom surface of the valve housing body when the main valve rotor is in one of different predetermined positions to improve the seal between the main valve rotor and the valve housing body, and further showing that the first biasing assembly includes a cam ramp formed on an axially facing surface of the upper housing cover of the valve housing and a cam surface formed on the main valve rotor, the cam surface being configured to engage the cam ramp on the housing cover when the main valve rotor rotates to different predetermined positions around the first rotor axis;

[0038] Figure 7 is included in Figure 3 An exploded view of a throttle valve rotor in a valve flow controller of a multi-way valve is shown in the figure, wherein the throttle valve rotor includes: a throttle valve rotor plate extending circumferentially around a second rotor axis and formed to define a throttle valve rotor through hole; a throttle valve rotor wall extending circumferentially around an outer edge of the throttle valve rotor plate and axially away from the throttle valve rotor plate; and a throttle valve rotor shaft extending away from the throttle valve rotor plate in the same direction as the throttle valve rotor wall along the second rotor axis, and further showing that a second biasing assembly of the second sealing system includes a biasing spring and a spring cover, the spring cover being configured to be assembled on the throttle valve rotor shaft, as shown in the figure. Figure 4B As shown;

[0039] Figure 8 Is has Figure 7 a cross-sectional view of the throttle rotor of the assembled second biasing assembly, showing the biasing spring disposed about the throttle rotor shaft of the throttle rotor to exert an axial force on the throttle rotor to urge the throttle rotor body toward a seal secured to the valve housing body, and also showing the spring cover extending about the biasing spring and coupled to the throttle rotor for rotation therewith such that the biasing spring is located between the spring cover and the throttle rotor;

[0040] Fig. 9 is included in Figure 1 a perspective view of a valve housing body in a valve housing of a multi-way valve, showing that the valve housing body is formed to define a plurality of orifices circumferentially spaced about a first valve axis, the plurality of orifices being aligned with a plurality of main rotor through-holes to allow fluid flow when the main valve rotor is in different predetermined positions;

[0041] Fig.10 is a perspective view of another embodiment of a multi-way valve configured to control fluid flow to various thermal fluid circuits in a vehicle;

[0042] Fig.11 yes Fig.10 The exploded view of the multi-way valve of the present invention shows that the multi-way valve includes: a valve housing having a valve housing body, the valve housing body defining a first valve chamber and a second valve chamber; an upper valve housing cover and a lower valve housing cover; a valve flow controller having a first and a throttle valve rotor, the first and the throttle valve rotor being configured to be arranged in the corresponding valve chambers of the valve housing body; an actuator configured to drive the first and the throttle valve rotors to rotate around the corresponding rotor axes to different predetermined positions, such as FIG. 16A to FIG. 16J As shown, a plurality of flow paths are formed through the valve housing body of the valve housing; and a first sealing system and a second sealing system, and the figure further shows that the first sealing system includes a separate sealing gasket, which is configured to be clamped between the main valve rotor body and the main valve rotor cover of the main valve rotor, as shown Fig.13 As shown, the sealing gasket rotates therewith;

[0043] Fig.12 yes Fig.10 a perspective view of a multi-way valve with an upper housing cover removed to show a main valve rotor disposed in a first valve chamber and a throttle valve rotor disposed in a second valve chamber, and further showing that the main valve rotor is formed to define a plurality of main rotor through holes, each of which extends axially through the main valve rotor to open to an orifice formed in the valve housing body, and the throttle valve rotor is formed to define second rotor through holes, each of which extends axially through the throttle valve rotor to open to an orifice formed in the valve housing body;

[0044] Fig.13 yes Fig.10a cross-sectional view of a multi-way valve, showing that when the main valve rotor and the throttle valve rotor are in one of different predetermined positions, the main valve rotor through hole formed in the main valve rotor and the throttle valve rotor through hole formed in the throttle valve rotor are aligned with the orifices in the valve housing body to allow fluid to flow therethrough, showing that the sealing member included in the first sealing system is axially located between the main valve rotor body and the main valve rotor cover, rather than being overmolded with the main valve rotor, to provide a seal between the main valve rotor and the valve housing body, and further showing that the lower valve housing cover is coupled to the valve housing body to form a connecting passage extending between an orifice leading to a first valve chamber and another orifice leading to a second valve chamber, so that the first valve chamber and the second valve chamber are in fluid communication;

[0045] Fig.13A yes Fig.13 a detailed view of the main valve rotor body and the main valve rotor, showing one of the first sealing members being axially located between the main valve rotor body and the main valve rotor and extending through each of the main valve rotor through holes to engage the valve housing body to provide a seal between the main valve rotor and the valve housing body such that leakage between the main valve rotor and the valve housing body is reduced when fluid flows through the first rotor through holes into an orifice in the valve housing body of the valve housing;

[0046] Fig.14 is included in Fig.13 An exploded view of a main valve rotor in a valve flow controller of a multi-way valve is shown in the figure, wherein the main valve rotor comprises: a main valve rotor body extending circumferentially around a first rotor axis; a main valve rotor shaft extending axially away from the main valve rotor body along the first rotor axis; and a main valve rotor cover, which is configured to be connected to the main valve rotor body so that a plurality of chambers formed in the main valve rotor cover extend around adjacent through holes in the main valve rotor body so that when the valve rotor cover is connected to the main valve rotor body, adjacent through holes in fluid communication with each other are connected to each other, and the figure further shows that the main valve rotor body has a locking plate, which engages the main valve rotor cover when the main valve rotor cover is in an engaged position on the main valve rotor body to prevent axial movement of the main valve rotor cover and the sealing gasket relative to the main valve rotor body, such as Fig.13A As shown;

[0047] Fig.15 is included in Fig.10 a perspective view of a valve housing body in a valve housing of a multi-way valve of the type shown, the valve housing body being formed to define a passageway rather than two separate apertures so that when the main valve rotor is in one of a plurality of predetermined positions, the valve housing body couples adjacent openings or chambers in fluid communication with one another;

[0048] Fig.16 It is shown Figure 1 and Fig.10A table showing different modes of the multi-way valve and different flow paths generated in each mode in the different modes AJ;

[0049] Fig.16A yes Fig.16 A top view of the multi-way valve in mode A shown, wherein the main valve rotor is in the main valve rotor first position, and the throttle valve rotor is in the throttle valve rotor first position;

[0050] Fig. 16B yes Fig.16 A top view of the multi-way valve in mode B is shown, wherein the main valve rotor remains in the main valve rotor first position and the throttle valve rotor has moved to the throttle valve rotor second position;

[0051] Fig. 16C yes Fig.16 A top view of the multi-way valve in mode C shown in FIG. 1 , wherein the main valve rotor remains in the main valve rotor first position, and the throttle valve rotor moves to the throttling configuration;

[0052] Fig.16D yes Fig.16 a top view of the multi-way valve in mode D shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor second position;

[0053] Fig.16E yes Fig.16 A top view of the multi-way valve in mode E is shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor valve third position;

[0054] Fig.16F yes Fig.16 A top view of the multi-way valve in mode F is shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor fourth position;

[0055] Figure 16G yes Fig.16 A top view of the multi-way valve in mode G is shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor fifth position;

[0056] Fig.16H Yes Fig.16 A top view of the multi-way valve in mode H is shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor sixth position;

[0057] Fig.16I yes Fig.16 a top view of the multi-way valve in mode H shown, wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor seventh position; and

[0058] Fig.16J yes Fig.16 0014 shows a top view of a multi-way valve in mode J shown in 0014 , wherein the throttle valve rotor remains in the throttling configuration while the main valve rotor moves to the main valve rotor eighth position. DETAILED DESCRIPTION

[0059] Figure 1 1 shows an exemplary multi-way valve 10 configured to control fluid flow to various thermal fluid circuits in a vehicle. The multi-way valve 10 includes a valve housing 12, a valve flow controller 14, and a first sealing system 16 and a second sealing system 18. The valve flow controller 14 is disposed in the valve housing 12 to control flow through the valve housing 12. The first sealing system 16 is configured to seal between the valve housing 12 and one of the valve rotors included in the valve flow controller 14. The second sealing system 18 is configured to seal between the valve housing 12 and another valve rotor included in the valve flow controller 14.

[0060] The valve flow controller 14 includes: a first valve rotor 36 disposed in a first valve chamber 30 formed by the valve housing 12; a second valve rotor 38 disposed in a second valve chamber 32 formed by the valve housing 12; and an actuator 26, such as Figures 1 to 9 As shown. The first valve rotor 36 is configured to rotate relative to the valve housing 12 about a first rotor axis 36A, and the second valve rotor 38 is configured to rotate relative to the valve housing 12 about a second rotor axis 38A. The second rotor axis 38A is parallel to the first rotor axis 36A. The actuator 26 is coupled to the first valve rotor 36 and the second valve rotor 38 to drive the first valve rotor 36 and the second valve rotor 38 to rotate about the respective rotor axes 36A, 38A.

[0061] The first valve rotor 36 and the second valve rotor 38 cooperate to define a plurality of flow paths through the valve housing 12. When the first valve rotor 36 and the second valve rotor 38 rotate about their respective rotor axes 36A, 38A to different set positions, the first valve rotor 36 and the second valve rotor 38 form different flow paths to control the flow of fluid through the valve housing 12 to different hot fluid circuits.

[0062] The different modes of the multi-way valve 10 are Fig.16 The first valve rotor 36 and the second valve rotor 38 are in different predetermined positions in each of the different modes AJ to form different flow paths through the valve housing 12, such as FIG. 16A to FIG. 16J The multi-way valve 10 and / or the actuator 26 may include a control unit pre-programmed with different modes AJ.

[0063] The first valve rotor 36 is formed to include a plurality of first rotor through holes 46A-46H, and the second valve rotor 38 is formed to include a plurality of second rotor through holes 74A-74C, such as Figures 2 to 5and Figure 8 The first rotor through holes 46, also referred to as main valve rotor through holes, each extend axially through the first valve rotor 36 relative to the first rotor axis 36A and are circumferentially spaced apart around the first rotor axis 36A.

[0064] The second rotor through holes 74A-74C, also referred to as throttle rotor through holes, each extend axially through the second valve rotor 38 relative to the second rotor axis 38A and are spaced circumferentially about the second rotor axis 38A. The first throttle rotor through hole 74A extends at least partially circumferentially about the second rotor axis 38A. Figure 3 As shown. The first throttle rotor through hole 74A extends at least partially around the second rotor axis 38A so that when the second valve rotor 38 rotates between different positions about the second rotor axis 38A, the rotor through hole 74A remains aligned with the hole 34A2 to allow fluid to flow therethrough. In the illustrated embodiment, each of the second rotor through holes 74A-74C extends partially around the second rotor axis 38A.

[0065] The first rotor through-holes 46A-46H extend axially through the first valve rotor 36 so that a fluid flow can flow axially through the first valve rotor 36 parallel to the first rotor axis 36A. When the first valve rotor 36 is in one of a plurality of different predetermined positions, the first rotor through-holes 46A-46H formed in the first valve rotor 36 align with different orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J included in the plurality of orifices 34A1, 34B, 34C, 34C, 34G, 34H to allow fluid to flow therethrough. In this manner, the first sealing system 16 uses first sealing members for different first rotor through-holes 46A-46H. Each of the first sealing members is coupled to rotate with the first valve rotor 36 and is not fixed to the valve housing 12.

[0066] Similarly, the second rotor through-holes 74A-74C extend axially through the second valve rotor 38 to enable fluid flow to flow axially therethrough parallel to the second rotor axis 38A. When the second valve rotor 38 is in one of a plurality of different predetermined positions, the second rotor through-holes 74A-74C formed in the second valve rotor 38 at least partially align with different orifices 34A2, 34I, 34J included in the plurality of orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J to allow fluid flow therethrough. The second sealing system 18 uses a second sealing member 86 coupled to the valve housing body 20 to seal around the orifices 34I, 34J in the valve housing body 20.

[0067] Other multi-way valves may have more complex passages through the valve housing, which complicates sealing and increases pressure drop because the fluid must make more turns / changes of direction. Complex passages may increase the likelihood of leakage through the different passages. These valves may include seals to seal between passages, but adding seals may require the actuator to have increased torque capabilities to overcome the friction of the seals between the different components.

[0068] Additionally, adding more seals or seals increases the overall manufacturing cost of the multi-way valve. Some valves may use Teflon materials for the seals. This may make the multi-way valve expensive to manufacture, especially since other valves have complex passages that have large and complex seals that may require a large amount of material.

[0069] The multi-way valve 10 of the present disclosure includes a first valve rotor 36 having axially extending through holes 46A-46H, thereby reducing pressure drop. In addition, a first sealing member 78 is coupled to the first valve rotor 36 so that when the first valve rotor 36 rotates between different predetermined positions, the first sealing member 78 rotates with the first valve rotor 36. When the first valve rotor 36 rotates, the first sealing member engages the axial facing surface 20S of the valve housing 12. In the illustrated embodiment, the first sealing member 78 is overmolded onto the first valve rotor 36. This not only improves the seal between the holes 46A-46H and the orifices 34A1, 34B, 34C, 34D, 34E, 34F, 34G, 34H in the valve housing body 20, because the flow path is less complex, and the first sealing system 16 also uses less material for the sealing member 78 and reduces the friction between the first valve rotor 36 and the valve housing body 20.

[0070] Turning again to the valve housing 12, the valve housing includes a valve housing body 20 and an upper valve housing cover 22, as shown in FIG. Figures 1 to 6 and Fig. 9 The valve housing body 20 is coupled to a manifold of a hot fluid circuit. An upper valve housing cover 22 is coupled to the valve housing body 20 to close the top openings of the first valve chamber 30 and the second valve chamber 32 .

[0071] The valve housing body 20 is formed to include a plurality of housing apertures 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J, as shown in FIG. Figures 2 to 4 and Fig. 9As shown. The plurality of housing orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J are in fluid communication with different hot fluid circuits. The plurality of housing orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J are in fluid communication with at least one of the first valve chamber 30 and the second valve chamber 32 of the valve housing body 20. In the illustrated embodiment, the orifices 34B, 34C, 34D, 34E, 34F, 34G, 34H are in fluid communication with the first valve chamber 30 and the second valve chamber 32, and the orifices 34I, 34J are in fluid communication with the second valve chamber 32. The orifices 34A1, 34A2 are in fluid communication with the first valve chamber 30 and the second valve chamber 32 through the connecting passage 34A defined by the valve housing 12.

[0072] In the illustrated embodiment, the valve housing 12 also includes Figure 2 and Figure 4 The lower valve housing cover 24 is shown. The lower valve housing cover 24 is coupled to the valve housing body 20 opposite to the upper valve housing cover 22 to close the bottom opening, thereby forming a connecting passage 34A between the first valve chamber 30 and the second valve chamber 32. In some embodiments, the valve housing body 20 and the lower valve housing cover 24 are a single-piece component.

[0073] In some embodiments, the upper valve housing cover 22 and the lower valve housing cover 24 are each laser welded to the valve housing body 20. In some embodiments, the upper valve housing cover 22 and the lower valve housing cover 24 can be secured to the valve housing body 20 using another suitable method.

[0074] like Figures 2 to 6 and Fig. 9 As shown, the valve housing body 20 is formed to define a first valve chamber 30 and a second valve chamber 32. The second valve chamber 32 is in fluid communication with the first valve chamber 30 via a connecting passage 34A defined between the valve housing body 20 and the lower valve housing cover 24.

[0075] The valve flow controller 14 includes a first valve rotor 36 and a second valve rotor 38. Figures 2 to 8 As shown, the first valve rotor 36 is also referred to as the main valve rotor 36, and the second valve rotor 38 is also referred to as the throttle valve rotor 38. The main valve rotor 36 is arranged in the first valve chamber 30 of the valve housing body 20, and the throttle valve rotor 38 is arranged in the second valve chamber 32 of the valve housing body 20. The main valve rotor 36 is configured to rotate relative to the valve housing body 20 around a first rotor axis 36A, and the throttle valve rotor 38 is configured to rotate relative to the valve housing body 20 around a second rotor axis 38A.

[0076] The first valve rotor 36 and the second valve rotor 38 cooperate to define a plurality of flow paths through the valve housing body 20. When the first valve rotor 36 and the second valve rotor 38 rotate about their respective rotor axes 36A, 38A to different set positions, the first valve rotor 36 and the second valve rotor 38 form different flow paths to control the flow of fluid through the housing passage a of the valve housing body 20.

[0077] The main valve rotor 36 includes a main valve rotor body 40, a main valve rotor shaft 42 and a main valve rotor cover 44. Figures 2 to 6 As shown. The main valve rotor body 40 extends circumferentially around the first rotor axis 36A. The main valve rotor shaft 42 extends axially along the first rotor axis 36A away from the main valve rotor body 40 and is coupled to the actuator 26. In the illustrated embodiment, the valve housing body 20 defines a first stem 31 that extends axially from the bottom surface 20S of the valve housing body 20 into the main valve rotor shaft 42 to position and center the main valve rotor 36 in the main valve chamber 30. The main valve rotor cover 44 is coupled to the main valve rotor body 40 to rotate therewith.

[0078] The main valve rotor body 40 is formed to include a plurality of main rotor through-holes 46A-46H, and the main valve rotor cover 44 is formed to define a plurality of chambers 48A-48C and a plurality of cover through-holes 50A, 50B. When the main valve rotor cover 44 is coupled to the main valve rotor body 40, the cover chambers 48A-48C each extend around adjacent through-holes 46A-46H in the main valve rotor body 40, thereby interconnecting adjacent through-holes 46A-46H that are in fluid communication with each other. When the main valve rotor cover 44 is coupled to the main valve rotor body 40, the cover through-holes 50A, 50B each align with one of the main rotor through-holes 46A-46H.

[0079] In the illustrated embodiment, the main valve rotor cover 44 has three cover chambers 48A-48C and two cover through holes 50A, 50B. In some embodiments, the number of cover chambers 48A-48C and the number of cover through holes may be different. For example, in some embodiments, the main valve rotor cover 44 may include two cover chambers 48 and four cover through holes 50A, 50B.

[0080] The main valve rotor body 40 includes a body plate 52, an outer wall 54 and an inner wall 56. Figures 2 to 6 The main body plate 52 extends circumferentially about the first rotor axis 36A and is shaped to define a plurality of main rotor through holes 46A-46H that extend axially through the main body plate. An outer wall 54 extends circumferentially about the outer edge of the main body plate 52. The outer wall 54 extends axially from the outer edge of the main body plate 52 in the same direction as the main valve rotor shaft 42. The inner wall 56 extends circumferentially about the first rotor axis 36A and is axially away from the main body plate 52 at a position radially inward of the outer wall 54.

[0081] The main valve rotor cover 44 includes a cover plate 58 and diverter housings 60, 61, 62, as shown in FIG. Figures 2 to 6 As shown. The cover plate 58 extends circumferentially around the first rotor axis 36A. Each of the diverter housings 60, 61, 62 defines one of the cover chambers 48A-48C and is configured to extend around at least two through holes 46 in the body plate 52. Figure 3 and Figure 5 As shown, the first diverter housing 60 defines a first cover chamber 48A, the second diverter housing 61 defines a second cover chamber 48B, and the third diverter housing 62 defines a third cover chamber 48C.

[0082] As the main valve rotor 36 rotates, the body plate 52 and the main valve rotor cover 44 cooperate to control flow to each of the housing orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J included in the housing orifices 34A1, 34B, 34C, 34D, 34E, 34F, 34G, 34H, as shown in FIG. FIG. 16A to FIG. 16J As shown. The body plate 52 controls the flow to each orifice 34A1, 34B, 34C, 34D, 34E, 34F, 34F, 34G, 34H by aligning different first rotor through holes 46A-46H with different orifices 34A1, 34B, 34C, 34E, 34F, 34G, 34H at different predetermined positions. The cover chambers 48A-48C of the main valve rotor cover 44 each connect adjacent through holes 46A-46H in fluid communication so that the fluid flow can only flow therebetween. The cover chambers 48A-48C of the diverter housings 60, 61, 62 connect adjacent through holes 46 to each other, but prevent direct fluid communication with the first valve chamber 30.

[0083] In the illustrated embodiment, the main valve rotor cover 44 is a separate component coupled to the main valve rotor body 40. The main valve rotor body 40 has a locking device for selectively securing the main valve rotor cover 44 to the main valve rotor body 40 in an engaged position on the main valve rotor body 40, so that once the main valve rotor cover 44 is in the engaged position, the main valve rotor cover 44 is prevented from axially moving relative to the main valve rotor body 40.

[0084] In the illustrated embodiment, each of the outer wall 54 and the inner wall 56 of the main valve rotor body 40 defines a locking device for selectively securing the main valve rotor cover 44 to the main valve rotor body 40 in an engaged position on the main valve rotor body 40. The locking device of the main valve rotor body 40 includes a deflectable locking tab 64 on the outer wall 54 and a deflectable locking tab 66 on the inner wall 56 of the main valve rotor body 40, as shown in FIG. Figures 2 to 5When the main valve rotor cover 44 is in the engaged position on the main valve rotor body 40, each deflectable locking tab 64, 66 is configured to engage the main valve rotor cover 44, thereby preventing axial movement of the main valve rotor cover 44 relative to the main valve rotor body 40 once the main valve rotor cover 44 is in the engaged position on the main valve rotor body 40.

[0085] Each deflectable locking tab 64, 66 includes a deflectable locking arm 64A, 66A and a protrusion 64P, 66P, such as Figures 2 to 5 The deflectable locking arm 64A extends axially from the outer wall 54 toward the body plate 52, while the deflectable locking arm 66A extends axially from the body plate 52 at the inner wall 56. The protrusions 64P, 66P extend radially from the respective deflectable locking arms 64A, 66A toward each other.

[0086] Each protrusion 64P, 66P defines a guide ramp 64S, 66S, which engages with the main valve rotor cover 44 when the main valve rotor cover 44 moves to the engagement position to deflect from the normal position to the deflected position so that the main valve rotor cover 44 can move past the protrusions 64P, 66P. Once the main valve rotor cover 44 moves past the terminal end of the protrusions 64P, 66P, the deflectable locking arms 64A, 66A move back to the normal position so that the protrusions 64P, 66P engage the upper surface 58S of the cover plate 58 to prevent axial movement of the main valve rotor cover 44, thereby fixing the main valve rotor cover 44 to the main valve rotor body 40.

[0087] The throttle rotor 38 includes a throttle rotor plate 68, a throttle rotor wall 70, and a throttle rotor shaft 72, as shown in FIG. Figures 2 to 8 As shown. The throttle rotor plate 68 extends circumferentially around the second rotor axis 38A. The throttle rotor wall 70 extends circumferentially around the outer edge of the throttle rotor plate 68. The throttle rotor wall 70 extends axially from the outer edge of the throttle rotor plate 68. The throttle rotor shaft 72 extends away from the throttle rotor plate 68 along the second rotor axis 38A in the same direction as the throttle rotor wall 70. In the illustrated embodiment, the valve housing body 20 defines a second rod 33 that extends axially from the bottom surface 20S of the valve housing body 20 into the throttle rotor shaft 72 to position and center the throttle rotor 38 in the throttle valve chamber 32.

[0088] The throttle rotor plate 68 is formed to define a plurality of throttle rotor through holes 74A-74C, such as Figures 3 to 8 Each of the throttle rotor through holes 74A-74C extends axially through the throttle rotor plate 68 and extends circumferentially partially around the second rotor axis 38A.

[0089] As the throttle rotor 38 rotates, the throttle rotor plate 68 controls the amount of fluid flowing through the orifices 34A2, 34I, 34J included in the plurality of housing orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J. The throttle rotor plate 68 partially opens, fully opens, or closes the orifices 34A2, 34I, 34J at different predetermined positions to control the flow of fluid. The throttle rotor plate 68 partially opens or closes the orifices 34A2, 34I, 34J at different predetermined positions by partially or fully covering the orifices 34A2, 34I, 34J. In certain positions, a portion of the throttle rotor plate 68 covers the orifices 34A2, 34I, 34J to block the flow of fluid.

[0090] The first sealing system 16, also referred to as the primary sealing system 16, includes a first biasing assembly 76 and a plurality of first sealing members 78, such as Figures 2 to 6 As shown. The first sealing member 78 is coupled to the first valve rotor 36 for rotation therewith. The plurality of first sealing members 78 engage with the axial facing surface 20S of the valve housing body 20. The first biasing assembly 76 is configured to selectively exert an axial force on the main valve rotor 36 to urge the main valve rotor 36 toward the plurality of apertures 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H, 34I, 34J formed in the valve housing body 20 so as to force the first sealing member 78 toward the valve housing body 20 and engage with the bottom surface 20S of the valve housing body 20 when the main valve rotor 36 is located in one of the different predetermined positions to improve the seal between the main valve rotor 36 and the valve housing body 20.

[0091] In the illustrated embodiment, the first sealing member 78 is overmolded onto the first valve rotor body 40 of the first valve rotor 36. In other embodiments, the first sealing member 78 can be another suitable seal coupled to the first valve rotor 36. In some embodiments, the first sealing member 78 can be a press fit seal. In some embodiments, the first sealing member 78 can be an O-ring seal. In other embodiments, the first sealing member 78 can be another suitable seal.

[0092] The first biasing assembly 76 includes a cam ramp 80 formed on the axial facing surface 22S of the upper valve housing cover 22 of the valve housing 12 and a cam surface 82 formed on the main valve rotor 36, as shown in FIG. Figure 6The cam surface 82 formed on the main valve rotor 36 is configured to engage with the cam ramp 80 on the upper valve housing cover 22 when the main valve rotor 36 rotates about the first rotor axis 36A to different predetermined positions, so that the main valve rotor 36 is pushed toward the plurality of orifices 34A1, 34A2, 34B, 34C, 34D, 34E, 34F, 34G, 34H formed in the valve housing body 20 at different predetermined positions.

[0093] Thus, the cam ramp 80 and the cam surface 82 serve to reduce the torque required to rotate the main valve rotor 36 between different predetermined positions. Other valves use a constant torque because the rotor is always loaded. The constant torque may adversely affect the life of the valve. The main valve rotor 36 includes a first biasing assembly 76 so that the main valve rotor 36 is loaded and unloaded as the main valve rotor 36 rotates between different predetermined positions.

[0094] The cam slope 80 is formed on the axial facing surface 22S of the upper valve housing cover 22, and the cam surface 82 is defined by the edge of the outer wall 54 of the main valve rotor body 40, as shown in FIG. Figure 6 As shown. Each of the cam ramps 80 protrudes from the surface 22S at intervals of approximately 45 degrees around the first rotor axis 36A. The cam surfaces 82 also protrude at intervals of approximately 45 degrees around the first rotor axis 36A. In some embodiments, the cam ramps 80 may be formed by the edge of the outer wall 54 of the main valve rotor body 40, while the cam surfaces 82 are defined by the axially facing surface of the upper valve housing cover 22.

[0095] Each of the cam ramps 80 is circumferentially aligned with one of the apertures 34A1, 34B, 34C, 34D, 34E, 34F, 34G, 34H of the valve housing body 20, while the raised portion of the cam surface 82 is aligned with the through-holes 46A-46H, as shown in FIG. Figure 4A and Figure 6 As shown. In this way, an axial force F will be applied at different predetermined locations to seal around the corresponding holes. Then, when the main valve rotor 36 rotates about the first rotor axis 36A, the raised portion 82P of the cam surface 82 disengages from the cam ramp 80, so that at least part of the axial force is removed and the torque required to rotate the main valve rotor 36 is reduced.

[0096] The cam ramp 80 is fixed to the upper valve housing cover 22. The cam surface 82 on the main valve rotor 36 abuts against the cam ramp 80 in a circular manner, and when aligned with the high point 82P of the cam surface 82, a downward axial force is applied to the main valve rotor 36, such as Figure 4AAs shown. This axial force generates contact pressure between the first sealing member and the bottom surface 20S of the valve housing body 20. The increased contact pressure and resulting increase in friction is only generated at predetermined positions of the different modes AJ. As the main valve rotor 36 rotates, the cam ramp 80 disengages from the high point 82P of the cam surface 82, so that the axial force is removed or reduced, so that the main valve rotor 36 is unloaded. This reduces friction and torque on the actuator during movement between sealing points.

[0097] The plurality of first sealing members 78 include some sealing members 78 that extend around individual through holes 46A, 46D, and other sealing members 78 that extend around adjacent through holes 46B, 46C, 46E, 46F, 46G, 46H in the main valve rotor body 40, such as Figure 5 As shown. Figure 4A and Figure 5 As shown, when the main valve rotor cover 44 is coupled to the main valve rotor body 40, the sealing member 78 extending around the adjacent through holes 46B, 46C, 46E, 46F, 46G, 46H forms a peripheral seal 78P around the corresponding through holes 46B, 46C, 46E, 46F, 46G, 46H, which is matched with the corresponding diverter housing 60, 61, 62. When the main valve rotor cover 44 is coupled to the main valve rotor body 40, the peripheral seal 78P of the sealing member 78 engages with the main valve rotor cover 44, so that the cover chambers 48A-48C are separated and sealed from the main valve chamber 30.

[0098] The second sealing system 18, also referred to as the throttle valve sealing system 18, includes a second biasing assembly 84 and a second sealing member 86, such as Figures 2 to 6 The second biasing assembly 84 is configured to exert an axial force on the second valve rotor 38 to push the second valve rotor 38 toward the second sealing member 86 and the bottom surface 20S of the valve housing body 20 and engage with the second sealing member 86 .

[0099] The second biasing assembly 84 includes a biasing member 88, a biasing member cover 90, and a flange 89 formed on the upper valve housing cover 22. Figures 11 to 13 As shown. The biasing member 88 is configured to be assembled on the throttle rotor shaft 72. When the biasing member 88 extends around the throttle rotor shaft 72, the biasing member cover 90 is arranged on the biasing member 88. The biasing member cover 90 is coupled to the throttle rotor 38 to rotate with the throttle rotor 38. When the upper valve housing cover 22 is coupled to the valve housing body 20, the flange 89 formed on the upper valve housing cover 22 engages with the biasing member cover 90, thereby loading the second biasing assembly 84 when the throttle rotor 38 is arranged in the second valve chamber 32.

[0100] like Figure 4As shown, with the biasing member 88 and the biasing member cover 90 assembled on the throttle rotor 38, the throttle rotor 38 can be arranged in the second valve chamber 32. The upper valve housing cover 22 defines a flange 89, which extends axially toward the biasing member cover 90 and engages the biasing member cover 90 so that the biasing member 88 is compressed. This causes the biasing member 88 to exert an axial force on the throttle rotor 38, thereby urging the throttle rotor 38 toward the plurality of apertures 34A2, 34I, 34J formed in the valve housing body 20 when the throttle rotor 38 is throttled to increase the seal between the throttle rotor 38 and the valve housing body 20.

[0101] In the illustrated embodiment, the second biasing assembly 84 applies a constant axial force to the throttle rotor 38. The second biasing assembly 84 constantly loads the throttle rotor 38. In other embodiments, the second biasing assembly 84 may include a cam feature similar to the main valve rotor 36 to selectively apply an axial force or reduce the force applied to the throttle rotor 38 so that the throttle rotor 38 is loaded and unloaded as the throttle rotor 38 rotates between different predetermined positions.

[0102] The biasing member cover 90 includes a ring 92 and a pair of deflectable attachment tabs 94, 96, such as Figure 4 , Figure 7 and Figure 8 38A. The ring 92 extends circumferentially around the second rotor axis 38A. The throttle rotor shaft 72 extends through a hole 92A formed in the ring of the biasing member cover 90. Deflectable attachment tabs 94, 96 each extend axially from the ring 92. The deflectable attachment tabs 94, 96 each extend into openings 72A on opposite sides of the throttle rotor shaft 72 to couple the biasing member cover 90 to the throttle rotor 38.

[0103] In the illustrated embodiment, the biasing member 88 is axially located between the throttle rotor plate 68 and the ring 92 of the biasing member cover 90. Figure 4 , Figure 4B and Figure 8 The deflectable attachment tabs 94 , 96 extend axially from the ring 92 such that the attachment tabs 94 , 96 are radially located between the biasing member 88 and the throttle rotor shaft 72 .

[0104] Each deflectable attachment piece 94, 96 includes a deflectable attachment arm 94A, 96A and a protrusion 94P, 96P, such as Figure 7 and Figure 8 The deflectable attachment arms 94A, 96A extend axially from the ring 92 on opposite sides of the ring 92. The protrusions 64P, 66P extend radially from the respective deflectable locking arms 64A, 66A toward each other.

[0105] Each protrusion 94p, 96p defines a guide ramp 94s, 96s that engages the throttle rotor shaft 72 when the biasing member cover 90 moves to the engaged position to deflect the deflectable attachment arms 94A, 96A from the normal position to the deflected position so that the biasing member cover 90 can move to the engaged position on the throttle rotor shaft 72. Once the terminal end of the protrusion 94p, 96p moves past the edge of the opening 72A in the throttle rotor shaft 72, the deflectable attachment arms 94A, 96A move back to the normal position so that each of the protrusions 94p, 96p engages the edge of the corresponding opening 72A to prevent axial movement of the biasing member cover 90 of the throttle rotor shaft 72.

[0106] In the illustrated embodiment, the second sealing member 86 is a gasket disposed axially between the valve housing body 20 and the second valve rotor 38, such as Figure 4 and Figure 4B In the illustrated embodiment, the second sealing member 86 extends around the apertures 34I, 34J. In some embodiments, the second sealing member 86 extends around the apertures 34A2, 34I, 34J.

[0107] In some embodiments, the second sealing member 86 can be another suitable seal type. In some embodiments, the second sealing member 86 can be a press fit seal. In some embodiments, the second sealing member 86 can be an O-ring seal. In some embodiments, the second sealing member 86 can be a plurality of sealing members 86 arranged around each orifice 34A2, 34I, 34J.

[0108] The different modes of the multi-way valve 10 are Fig.16 The first mode or mode A is shown in Fig.16A The second mode or mode B is shown in Fig. 16B The third mode or mode C is shown in Fig. 16C The fourth mode or mode D is shown in Fig.16D The fifth mode or mode E is shown in Fig.16E The sixth mode or mode F is shown in Fig.16F The seventh mode or mode G is shown in Figure 16G The eighth mode or mode H is shown in Fig.16H The ninth mode or mode I is shown in Fig.16I The tenth mode or mode J is shown in Fig.16J Shown in.

[0109] In mode A, the main valve rotor 36 is in the main valve rotor first position, and the throttle valve rotor 38 is in the throttle valve rotor first position, such as Fig.16AIn the first position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the fourth orifice 34D, connects the second orifice 34B to the third orifice 34C, connects the fifth orifice 34E to the sixth orifice 34F, and connects the seventh orifice 34G to the eighth orifice 34H, as shown. Fig.16 and FIG. 16A to FIG. 16C In the first throttle rotor position, the throttle rotor 38 connects the first throttle chamber port 34A2 with the first main chamber port 34A1 and the ninth port 34I, while preventing flow through the tenth port 34J, as shown. Fig.16 and Fig.16A shown.

[0110] In the main valve rotor first position, the rotor through hole 46A and the cover through hole 50B are aligned with the first main chamber aperture 34A1, while the rotor through hole 46D and the cover through hole 50A are aligned with the fourth aperture 34D so that FIG. 16A to FIG. 16C As shown, the first main chamber orifice 34A1 and the fourth orifice 34D are connected in fluid communication. In the first position of the main valve rotor, the rotor through hole 46B is aligned with the second orifice 34B, the rotor through hole 46C is aligned with the third orifice 34C, and the first diverter housing 60 defining the first chamber 48A extends around the second orifice 34B and the third orifice 34C to connect the second orifice 34B and the third orifice 34C in fluid communication, as shown in FIG. FIG. 16A to FIG. 16C shown.

[0111] In the first position of the main valve rotor, the rotor through hole 46E is aligned with the fifth orifice 34E, the rotor through hole 46F is aligned with the sixth orifice 34F, and the second diverter housing 61 defining the second chamber 48B extends around the fifth orifice 34E and the sixth orifice 34F to connect the fifth orifice 34E and the sixth orifice 34F to fluid. FIG. 16A to FIG. 16C In the first position of the main valve rotor, the rotor through hole 46G is aligned with the seventh orifice 34G, the rotor through hole 46H is aligned with the eighth orifice 34H, and the third diverter housing 62 defining the third chamber 48C extends around the seventh orifice 34G and the eighth orifice 34H to connect the seventh orifice 34G and the eighth orifice 34H to fluid, as shown in FIG. FIG. 16A to FIG. 16C shown.

[0112] In the first throttle rotor position, the first through hole 74A in the throttle rotor 38 is aligned with the first throttle chamber orifice 34A2, so that the first valve chamber 30 is in fluid communication with the second valve chamber 32 through the connecting passage 34A. Fig.16A In the first throttle rotor position, the throttle rotor 38 also aligns the second through hole 74B with the ninth orifice 34I to connect the first throttle chamber orifice 34A2 with the ninth orifice 34I and covers the tenth orifice 34J to block flow, as shown. Fig.16A shown.

[0113] In mode B, the main valve rotor 36 remains in the main valve rotor first position, and the throttle valve rotor 38 is in the throttle valve rotor second position, such as Fig. 16B In the second throttle rotor position, the throttle rotor 38 connects the first throttle chamber orifice 34A2 with the first main chamber orifice 34A1 and the tenth orifice 34J, while preventing flow through the ninth orifice 34I, as shown in FIG. Fig.16 and Fig. 16B shown.

[0114] In the second throttle rotor position, the first through hole 74A in the throttle rotor 38 remains aligned with the first throttle chamber orifice 34A2, so that the first valve chamber 30 is in fluid communication with the second valve chamber 32 through the connecting passage 34A, as shown in FIG. Fig. 16B However, in the second throttle rotor position, the throttle rotor 38 aligns the third through hole 74C with the tenth orifice 34J to connect the first throttle chamber orifice 34A2 with the tenth orifice 34J and covers the ninth orifice 34I to block flow, as shown. Fig. 16B shown.

[0115] In mode C, the main valve rotor 36 remains in the main valve rotor first position, and the throttle valve rotor 38 is in the throttling configuration, such as Fig. 16C In the throttle configuration, the first through hole 74A in the throttle rotor 38 remains aligned with the first throttle chamber orifice 34A2, so that the first valve chamber 30 is in fluid communication with the second valve chamber 32 through the connecting passage 34A, as shown in FIG. Fig. 16C However, in the throttling configuration, the two through holes 74B, 74C are partially aligned with the corresponding ninth orifice 34I and tenth orifice 34J, as shown in FIG. Fig.16 and FIG. 16C to FIG. 16J shown.

[0116] Both through-holes 74B, 74C are partially aligned with the corresponding ninth and tenth orifices 34I, 34J, so that the first throttle chamber orifice 34A2 is in fluid communication with the ninth and tenth orifices 34I, 34J. In the throttle configuration, the throttle rotor 38 can rotate about the second rotor axis 38A to change or throttle the flow through the ninth and tenth orifices 34I, 34J. The first through-hole 74A extends partially circumferentially around the second rotor axis 38A so that when the throttle rotor 38 is switched in the throttle configuration, the first through-hole 74A in the throttle rotor 38 remains aligned with the first throttle chamber orifice 34A2. When the throttle rotor 38 rotates, the corresponding through-holes 74B, 74C change the flow through the ninth and tenth orifices 34I, 34J.

[0117] In any of Modes D to J, the throttle rotor 38 may be as follows: FIG. 16D to FIG. 16JIn the throttling configuration, Fig.16 As shown, neither orifice 34I, 34J is blocked, but flow through orifices 34I, 34J may vary. Alternatively, in any of Modes D to Mode J, throttle rotor 38 may be in the throttle rotor first position, or the throttle rotor second position.

[0118] In any of the modes D to J, if the throttle rotor 38 is in the throttle rotor first position, the ninth orifice 34I will be blocked, such as Fig.16A In any of the modes D to J, if the throttle rotor 38 is in the throttle rotor second position, the tenth orifice 34J will be blocked, as shown in FIG. Fig. 16B Shown

[0119] In mode D, the main valve rotor 36 has moved to the main valve rotor second position, such as Fig.16D In the second position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the eighth orifice 34H, connects the second orifice 34B to the fifth orifice 34E, connects the third orifice 34C to the fourth orifice 34D, and connects the sixth orifice 34F to the seventh orifice 34G, as shown. Fig.16 and Fig.16D shown.

[0120] In the second position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the second orifice 34B, and the rotor through hole 46D and the cover through hole 50A are aligned with the fifth orifice 34E, thereby connecting the second orifice 34B and the fifth orifice 34E in fluid communication, as shown in FIG. Fig.16D In the second position of the main valve rotor, the rotor through hole 46B is aligned with the third orifice 34C, the rotor through hole 46C is aligned with the fourth orifice 34D, and the first diverter housing 60 defining the first chamber 48A extends around the third orifice 34C and the fourth orifice 34D to connect the third orifice 34C and the fourth orifice 34D in fluid communication, as shown in FIG. Fig.16D shown.

[0121] In the second position of the main valve rotor, the rotor through hole 46E is aligned with the sixth orifice 34F, the rotor through hole 46F is aligned with the seventh orifice 34G, and the second diverter housing 61 defining the second chamber 48B extends around the sixth orifice 34F and the seventh orifice 34G to connect the sixth orifice 34F and the seventh orifice 34G in fluid communication, as shown in FIG. Fig.16DIn the second position of the main valve rotor, the rotor through hole 46G is aligned with the eighth orifice 34H, the rotor through hole 46H is aligned with the first main chamber orifice 34A1, and the third diverter housing 62 defining the third chamber 48C extends around the eighth orifice 34H and the first main chamber orifice 34A1 to connect the eighth orifice 34H and the first main chamber orifice 34A1 in fluid communication, as shown in FIG. Fig.16D shown.

[0122] In some embodiments, the valve housing body 20 may be formed to include a passage 34EF' rather than Fig.16D The two separate orifices 34E, 34F are shown. When the main valve rotor 36 is in the position shown Fig.16D , Fig.16E , Figure 16G , Fig.16H and Fig.16J In the different predetermined positions shown, the passage 34EF' does not only interconnect immediately adjacent rotor through holes 46A-46H.

[0123] For example, in the second position of the main valve rotor, if the valve housing 20 includes a passage 34EF' instead of two separate orifices 34E, 34F, the rotor through hole 46F is aligned with the seventh orifice 34G, and the rotor through hole 46E can be aligned with one end of the passage 34EF', so that the seventh orifice 34G can be in fluid communication with the passage 34EF' through the second chamber 48B, as shown in FIG. Fig.16 The rotor through hole 46D aligned with the cover through hole 50A may be aligned with the other end of the passage 34EF', so that the seventh orifice 34G may be in fluid communication with the first valve chamber 30, as shown. Fig.16D Thus, when the main valve rotor 36 is in the main valve rotor second position, the passage 34EF' can interconnect the seventh orifice 34G to the second orifice 34B, whereas when a single orifice 34E, 34F is used, only the sixth orifice 34F is connected to the seventh orifice 34G.

[0124] In mode D, the throttle rotor 38 may be maintained at Fig.16 and Fig.16D Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control fluid communication between the eighth orifice 34H and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0125] In mode E, the main valve rotor 36 has moved to the main valve rotor third position, such as Fig.16EIn the third position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the second orifice 34B, the third orifice 34C to the sixth orifice 34F, the fourth orifice 34D to the fifth orifice 34E, and the seventh orifice 34G to the eighth orifice 34H, as shown. Fig.16 and Fig.16E Shown

[0126] In the main valve rotor valve third position, the rotor through hole 46A and the cover through hole 50B are aligned with the third orifice 34C, and the rotor through hole 46D and the cover through hole 50A are aligned with the sixth orifice 34F, so as to connect the third orifice 34C and the sixth orifice 34F in fluid communication, as shown in FIG. Fig.16E In the third position of the main valve rotor, the rotor through hole 46B is aligned with the fourth orifice 34D, the rotor through hole 46C is aligned with the fifth orifice 34E, and the first diverter housing 60 defining the first chamber 48A extends around the fourth orifice 34D and the fifth orifice 34E to connect the fourth orifice 34D and the fifth orifice 34E in fluid communication, as shown. Fig.16E shown.

[0127] In the third position of the main valve rotor, the rotor through hole 46E is aligned with the seventh orifice 34G, the rotor through hole 46F is aligned with the eighth orifice 34H, and the second diverter housing 61 defining the second chamber 48B extends around the seventh orifice 34G and the eighth orifice 34H to connect the seventh orifice 34G and the eighth orifice 34H in fluid communication, as shown in FIG. Fig.16E In the third position of the main valve rotor, the rotor through hole 46G is aligned with the first main chamber orifice 34A1, the rotor through hole 46H is aligned with the second orifice 34B, and the third diverter housing 62 defining the third chamber 48C extends around the first main chamber orifice 34A1 and the second orifice 34B to connect the first main chamber orifice 34A1 and the second orifice 34B in fluid communication, as shown. Fig.16E shown.

[0128] like Fig.16D As shown, the valve housing body 20 may be formed to include a passage 34EF', rather than Fig.16E In the third position of the main valve rotor, if the valve housing 20 includes a passage 34EF' instead of two separate orifices 34E, 34F, the rotor through hole 46B is aligned with the fourth orifice 34D, and the rotor through hole 46C can be aligned with one end of the passage 34EF', so that the fourth orifice 34D can be in fluid communication with the passage 34EF' through the first chamber 48A, as shown. Fig.16E The rotor through hole 46D aligned with the cover through hole 50A may be aligned with the other end of the passage 34EF', so that the fourth orifice 34D may be in fluid communication with the first valve chamber 30, as shown. Fig.16EThus, when the main valve rotor 36 is in the main valve rotor valve third position, the passage 34EF' can interconnect the fourth orifice 34D to the third orifice 34C, while only the fourth orifice 34D is connected to the fifth orifice 34E using a single orifice 34E, 34F.

[0129] In Mode E, the throttle rotor 38 may remain in the throttling configuration, such as Fig.16E Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control the fluid communication between the second orifice 34B and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0130] In mode F, the main valve rotor 36 has moved to the main valve rotor fourth position, such as Fig.16F In the fourth position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the eighth orifice 34H, connects the second orifice 34B to the third orifice 34C, connects the fourth orifice 34D to the seventh orifice 34G, and connects the fifth orifice 34E to the sixth orifice 34F, as shown. Fig.16 and Fig.16F shown.

[0131] In the fourth position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the fourth orifice 34D, and the rotor through hole 46D and the cover through hole 50A are aligned with the seventh orifice 34G, thereby connecting the fourth orifice 34D and the seventh orifice 34G in fluid communication, as shown in FIG. Fig.16F In the fourth position of the main valve rotor, the rotor through hole 46B is aligned with the fifth orifice 34E, the rotor through hole 46C is aligned with the sixth orifice 34F, and the first diverter housing 60 defining the first chamber 48A extends around the fifth orifice 34E and the sixth orifice 34F to connect the fifth orifice 34E and the sixth orifice 34F in fluid communication, as shown in FIG. Fig.16F shown.

[0132] In the fourth position of the main valve rotor, the rotor through hole 46E is aligned with the eighth orifice 34H, the rotor through hole 46F is aligned with the first main chamber orifice 34A1, and the second diverter housing 61 defining the second chamber 48B extends around the eighth orifice 34H and the first main chamber orifice 34A1 to connect the eighth orifice 34H and the first main chamber orifice 34A1 in fluid communication, as shown in FIG. Fig.16F In the fourth position of the main valve rotor, the rotor through hole 46G is aligned with the second orifice 34B, the rotor through hole 46H is aligned with the third orifice 34C, and the third diverter housing 62 defining the third chamber 48C extends around the second orifice 34B and the third orifice 34C to connect the second orifice 34B and the third orifice 34C in fluid communication, as shown in FIG. Fig.16F shown.

[0133] In some embodiments, if the valve housing body 20 is formed to include the passage 34EF', the rotor through hole 46B may be aligned with one end of the passage 34EF', and when the main valve rotor 36 is in the main valve rotor fourth position, the rotor through hole 46C may be aligned with the other end, so that the first diverter housing 60 extends around the passage 34EF' and blocks the flow of fluid into / out of the passage 34EF', as shown in FIG. Fig.16F The first diverter housing 60 can form a closed loop with the channel 34EF'.

[0134] In mode F, the throttle rotor 38 may remain in the throttling configuration, such as Fig.16F Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control the fluid communication between the eighth orifice 34H and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0135] In mode G, the main valve rotor 36 has moved to the main valve rotor fifth position, as shown in FIG. Figure 16G In the fifth position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the second orifice 34B, connects the third orifice 34C to the fourth orifice 34D, connects the fifth orifice 34E to the eighth orifice 34H, and connects the sixth orifice 34F to the seventh orifice 34G, as shown. Fig.16 and Figure 16G shown.

[0136] In the fifth position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the fifth orifice 34E, and the rotor through hole 46D and the cover through hole 50A are aligned with the eighth orifice 34H, thereby connecting the fifth orifice 34E and the eighth orifice 34H in fluid communication, as shown in FIG. Figure 16G In the fifth position of the main valve rotor, the rotor through hole 46B is aligned with the sixth orifice 34F, the rotor through hole 46C is aligned with the seventh orifice 34G, and the first diverter housing 60 defining the first chamber 48A extends around the sixth orifice 34F and the seventh orifice 34G to connect the sixth orifice 34F and the seventh orifice 34G in fluid communication, as shown in FIG. Figure 16G shown.

[0137] In the fifth position of the main valve rotor, the rotor through hole 46E is aligned with the first main chamber orifice 34A1, the rotor through hole 46F is aligned with the second orifice 34B, and the second diverter housing 61 defining the second chamber 48B extends around the first main chamber orifice 34A1 and the second orifice 34B to connect the first main chamber orifice 34A1 and the second orifice 34B in fluid communication, as shown in FIG. Figure 16GIn the fifth position of the main valve rotor, the rotor through hole 46G is aligned with the third orifice 34C, the rotor through hole 46H is aligned with the fourth orifice 34D, and the third diverter housing 62 defining the third chamber 48C extends around the third orifice 34C and the fourth orifice 34D to connect the third orifice 34C and the fourth orifice 34D in fluid communication, as shown in FIG. Figure 16G shown.

[0138] As in the main valve rotor second position, if the valve housing 20 includes a passage 34EF' instead of two separate orifices 34E, 34F, the rotor through hole 46C is aligned with the seventh orifice 34G, and the rotor through hole 46B can be aligned with one end of the passage 34EF', so that when the main valve rotor 36 is in the main valve rotor fifth position, the seventh orifice 34G can be in fluid communication with the passage 34EF' through the first chamber 48A, as shown. Figure 16G The rotor through hole 46A aligned with the cover through hole 50B can be aligned with the other end of the passage 34EF' so that the seventh orifice 34G can be in fluid communication with the first valve chamber 30. However, in the fifth position of the main valve rotor, the passage 34EF' can interconnect the seventh orifice 34G to the eighth orifice 34H, as shown. Figure 16G shown.

[0139] In mode G, the throttle rotor 38 may remain in the throttling configuration, such as Figure 16G Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control the fluid communication between the second orifice 34B and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0140] In mode H, the main valve rotor 36 has moved to the main valve rotor sixth position, as shown in FIG. Fig.16H In the sixth position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the sixth orifice 34F, connects the second orifice 34B to the third orifice 34C, connects the fourth orifice 34D to the fifth orifice 34E, and connects the seventh orifice 34G to the eighth orifice 34H, as shown. Fig.16 and Fig.16H shown.

[0141] In the sixth position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the sixth orifice 34F, and the rotor through hole 46D and the cover through hole 50A are aligned with the first main chamber orifice 34A1 to connect the sixth orifice 34F and the first main chamber orifice 34A1 in fluid communication, as shown in FIG. Fig.16HIn the sixth position of the main valve rotor, the rotor through hole 46B is aligned with the seventh orifice 34G, the rotor through hole 46C is aligned with the eighth orifice 34H, and the first diverter housing 60 defining the first chamber 48A extends around the seventh orifice 34G and the eighth orifice 34H to connect the seventh orifice 34G and the eighth orifice 34H in fluid communication, as shown in FIG. Fig.16H shown.

[0142] In the sixth position of the main valve rotor, the rotor through hole 46E is aligned with the second orifice 34B, the rotor through hole 46F is aligned with the third orifice 34C, and the second diverter housing 61 defining the second chamber 48B extends around the second orifice 34B and the third orifice 34C to connect the second orifice 34B and the third orifice 34C in fluid communication, as shown in FIG. Fig.16H In the sixth position of the main valve rotor, the rotor through hole 46G is aligned with the fourth orifice 34D, the rotor through hole 46H is aligned with the fifth orifice 34E, and the third diverter housing 62 defining the third chamber 48C extends around the fourth orifice 34D and the fifth orifice 34E to connect the fourth orifice 34D and the fifth orifice 34E in fluid communication, as shown in FIG. Fig.16H shown.

[0143] As in the main valve rotor valve third position, if the valve housing 20 includes a passage 34EF' instead of two separate ports 34E, 34F, the rotor through hole 46G is aligned with the fourth port 34D, and the rotor through hole 46H can be aligned with one end of the passage 34EF', so that the fourth port 34D can be in fluid communication with the passage 34EF' through the third chamber 48C, as shown in FIG. Fig.16H The rotor through hole 46A aligned with the cover through hole 50B can be aligned with the other end of the passage 34EF' so that the fourth orifice 34D can be in fluid communication with the first valve chamber 30. However, in the sixth position of the main valve rotor, the passage 34EF' can interconnect the fourth orifice 34D to the first main chamber orifice 34A1, as shown. Fig.16H shown.

[0144] In mode H, the throttle rotor 38 may remain in the throttling configuration, such as Fig.16H Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control the fluid communication between the sixth orifice 34F and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0145] In mode I, the main valve rotor 36 has moved to the main valve rotor seventh position, as shown in FIG. Fig.16IIn the seventh position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the eighth orifice 34H, connects the second orifice 34B to the seventh orifice 34G, connects the third orifice 34C to the fourth orifice 34D, and connects the fifth orifice 34E to the sixth orifice 34F, as shown. Fig.16 and Fig.16I shown.

[0146] In the seventh position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the seventh orifice 34G, and the rotor through hole 46D and the cover through hole 50A are aligned with the second orifice 34B, thereby connecting the seventh orifice 34G and the second orifice 34B in fluid communication, as shown in FIG. Fig.16I In the seventh position of the main valve rotor, the rotor through hole 46B is aligned with the eighth orifice 34H, the rotor through hole 46C is aligned with the first main chamber orifice 34A1, and the first diverter housing 60 defining the first chamber 48A extends around the eighth orifice 34H and the first main chamber orifice 34A1 to connect the eighth orifice 34H and the first main chamber orifice 34A1 in fluid communication, as shown in FIG. Fig.16I shown.

[0147] In the seventh position of the main valve rotor, the rotor through hole 46E is aligned with the third orifice 34C, the rotor through hole 46F is aligned with the fourth orifice 34D, and the second diverter housing 61 defining the second chamber 48B extends around the third orifice 34C and the fourth orifice 34D to connect the third orifice 34C and the fourth orifice 34D in fluid communication, as shown in FIG. Fig.16I In the seventh position of the main valve rotor, the rotor through hole 46G is aligned with the fifth orifice 34E, the rotor through hole 46H is aligned with the sixth orifice 34F, and the third diverter housing 62 defining the third chamber 48C extends around the fourth orifice 34D and the fifth orifice 34E to connect the fifth orifice 34E and the sixth orifice 34F in fluid communication, as shown. Fig.16I shown.

[0148] In Mode I, the throttle rotor 38 may be maintained at Fig.16I Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control fluid communication between the eighth orifice 34H and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34, as shown. Fig.16 shown.

[0149] In mode J, the main valve rotor 36 has moved to the main valve rotor eighth position, as shown in FIG. Fig.16J In the eighth position of the main valve rotor, the main valve rotor 36 connects the first main chamber orifice 34A1 to the second orifice 34B, connects the third orifice 34C to the eighth orifice 34H, connects the fourth orifice 34D to the fifth orifice 34E, and connects the sixth orifice 34F to the seventh orifice 34G, as shown. Fig.16 and Fig.16J shown.

[0150] In the eighth position of the main valve rotor, the rotor through hole 46A and the cover through hole 50B are aligned with the eighth orifice 34H, and the rotor through hole 46D and the cover through hole 50A are aligned with the third orifice 34C, thereby connecting the eighth orifice 34H and the third orifice 34C in fluid communication, as shown in FIG. Fig.16J In the eighth position of the main valve rotor, the rotor through hole 46B is aligned with the first main chamber orifice 34A1, the rotor through hole 46C is aligned with the second orifice 34B, and the first diverter housing 60 defining the first chamber 48A extends around the first main chamber orifice 34A1 and the second orifice 34B to connect the first main chamber orifice 34A1 and the second orifice 34B in fluid communication, as shown. Fig.16J shown.

[0151] In the eighth position of the main valve rotor, the rotor through hole 46E is aligned with the fourth orifice 34D, the rotor through hole 46F is aligned with the fifth orifice 34E, and the second diverter housing 61 defining the second chamber 48B extends around the fourth orifice 34D and the fifth orifice 34E to connect the fourth orifice 34D and the fifth orifice 34E in fluid communication, as shown in FIG. Fig.16J In the eighth position of the main valve rotor, the rotor through hole 46G is aligned with the sixth orifice 34F, the rotor through hole 46H is aligned with the seventh orifice 34G, and the third diverter housing 62 defining the third chamber 48C extends around the sixth orifice 34F and the seventh orifice 34G to connect the sixth orifice 34F and the seventh orifice 34G in fluid communication, as shown in FIG. Fig.16J shown.

[0152] In some embodiments, where the valve housing body 20 is formed to include a channel 34EF' instead of two single orifices 34E, 34F, when the main valve rotor 36 is in the main valve rotor eighth position, the channel 34EF' can interconnect the fourth orifice 34D and the seventh orifice 34G, as shown in FIG. Fig.16J The rotor through hole 46G may be aligned with one end of the passage 34EF', and the rotor through hole 46F may be aligned with the other end to interconnect the fourth aperture 34D and the seventh aperture 34G, as shown. Fig.16J shown.

[0153] In Mode J, the throttle rotor 38 may remain in the throttling configuration, such as Fig.16J Alternatively, the throttle rotor 38 may be rotated to any one of the positions to control the fluid communication between the second orifice 34B and the ninth orifice 34I and the tenth orifice 34J through the connecting passage 34A, as shown. Fig.16 shown.

[0154] The multi-way valve 10 and / or the actuator 26 may include a control unit configured to direct the actuator 26 to move each of the valve rotors 36, 38 to a different predetermined position in each of the different modes AJ. Based on the position of the vehicle requiring fluid, the control unit will direct the actuator 26 to move each of the valve rotors 36, 38 to one of the positions of the desired mode. In the illustrative embodiment, a single dual actuator 26 is used. In other embodiments, a separate actuator 26 for each valve rotor 36, 38 may be used. Multiple actuators 26 may be coupled to the control unit to independently direct each actuator 26 to move each valve rotor 36, 38 to a different predetermined position in each of the different modes AJ.

[0155] exist Figures 10 to 15 Another embodiment of the multi-way valve 210 according to the present invention is shown in FIG. The multi-way valve 210 is substantially similar to Figures 1 to 9 The multi-way valve 10 shown and described herein. Therefore, similar reference numbers in the 200 series represent features common between the multi-way valve 10 and the multi-way valve 210. Except where there is a conflict with the specific description and drawings of the multi-way valve 210, the description of the multi-way valve 10 is incorporated by reference to apply to the multi-way valve 210.

[0156] like Figures 10 to 15 As shown, the multi-way valve 210 includes a valve housing 212, a valve flow controller 214, and first and second sealing systems 216 and 218. The valve flow controller 214 is arranged in the valve housing 212 to control the flow through the valve housing 212. The valve flow controller 214 includes a first valve rotor 236 and a second valve rotor 238. The first sealing system 216 is configured to seal between the valve housing 212 and the main valve rotor 236, and the second sealing system 218 is configured to seal between the valve housing 212 and the throttle valve rotor 238.

[0157] Different modes of the multi-way valve 210 and Fig.16 The modes of the illustrated multi-way valve 10 are similar, if not identical. The multi-way valve 210 changes between modes AJ such that the first valve rotor 236 and the second valve rotor 238 are in one of different predetermined positions to form different flow paths through the valve housing 212 .

[0158] and Figures 1 to 9 Different from the first sealing system 16 in the embodiment of the multi-way valve 10, the first sealing system 216 includes Fig.11 and Fig.14The single sealing member 278 is shown. The single sealing member 278 is connected to the main valve rotor 236 so as to rotate with the main valve rotor 236. The single sealing member 278 includes a sealing base 278B and a plurality of sealing ribs 278R extending axially from the sealing base 278B into corresponding through holes 246 in the main valve rotor 236. The first sealing member 278 is formed to define a plurality of openings 278A, each of which extends through the sealing base 278B and one of the sealing ribs 278R so that a fluid flow can flow through the first sealing member 278.

[0159] The valve housing includes a valve housing body 220, an upper valve housing cover 222 and a lower valve housing cover 224. Figures 11 to 15 As shown. The valve housing body 220 is coupled to a manifold of a hot fluid circuit. An upper valve housing cover 222 is coupled to the valve housing body 220 to close the top openings of the first valve chamber 230 and the second valve chamber 232. A lower valve housing cover 224 is coupled to the valve housing body 220 opposite to the upper valve housing cover 222 to close the bottom opening, thereby forming a connecting passage 234A between the first valve chamber 230 and the second valve chamber 232.

[0160] The valve housing body 220 is formed to include a plurality of housing apertures 234A1, 234A2, 234B, 234C, 234D, 234G, 234H, 234I, 234J, as shown in FIG. Fig.15 As shown. A plurality of housing orifices 234A1, 234A2, 234B, 234C, 234D, 234G, 234H, 234I, 234J are in fluid communication with different thermal fluid circuits. The plurality of housing orifices 234A1, 234A2, 234B, 234C, 234D, 234G, 234H, 234I, 234J are in fluid communication with at least one of the first valve chamber 230 and the second valve chamber 232 of the valve housing body 220. In the illustrated embodiment, the orifices 234A1, 234A2 are in fluid communication with the first valve chamber 230 and the second valve chamber 232 through a connecting passage 234A defined by the valve housing 212.

[0161] In the illustrated embodiment, the valve housing body 220 is formed to define a passage 234EF, rather than two separate apertures 34D, 34E, as shown. Fig.15 As shown. When the main valve rotor 236 is in different predetermined positions, like the passage 34EF', the passage 234EF not only interconnects the rotor through holes 246A-246H that are just adjacent. The valve housing body 220 defines the passage 234EF so that when the main valve rotor 236 is in one of the plurality of predetermined positions, the valve housing body 220 couples the adjacent openings or chambers to each other in fluid communication, such as FIG. 16A to FIG. 16J shown.

[0162] like Figures 10 to 12 and Fig.14 As shown, the valve housing body 220 is formed to define a first valve chamber 230 and a second valve chamber 232. The second valve chamber 232 is in fluid communication with the first valve chamber 230 via a connecting passage 234A defined between the valve housing body 220 and the lower valve housing cover 224.

[0163] The valve flow controller 214 includes a main valve rotor 236 and a throttle valve rotor 238, as shown in FIG. Figures 10 to 13 The main valve rotor 236 is arranged in the first valve chamber 230 of the valve housing body 220, and the throttle valve rotor 238 is arranged in the second valve chamber 232 of the valve housing body 220. The main valve rotor 236 is configured to rotate relative to the valve housing body 220 around a first rotor axis 236A, and the throttle valve rotor 238 is configured to rotate relative to the valve housing body 20 around a second rotor axis 238A.

[0164] The first valve rotor 236 and the second valve rotor 238 cooperate to define a plurality of flow paths through the valve housing body 220. When the first valve rotor 236 and the second valve rotor 238 rotate about their respective rotor axes 236A, 238A to different set positions, the first valve rotor 236 and the second valve rotor 238 form different flow paths to control the flow of fluid through the housing passage a of the valve housing body 220.

[0165] The main valve rotor 236 includes a main valve rotor body 240, a main valve rotor shaft 242, and a main valve rotor cover 244. Fig.13 and Fig.14 The main valve rotor body 240 extends circumferentially around the first rotor axis 236A. The main valve rotor shaft 242 extends axially away from the main valve rotor body 240 along the first rotor axis 236A and is coupled to the actuator 226. The main valve rotor cover 244 is coupled to the main valve rotor body 240 to rotate therewith.

[0166] The main valve rotor body 240 is formed to include a plurality of main rotor through-holes 246A-246H, and the main valve rotor cover 244 is formed to define a plurality of chambers 248A-248C and a plurality of cover through-holes 250A, 250B. When the main valve rotor cover 244 is coupled to the main valve rotor body 240, the cover chambers 248A-248C each extend around an adjacent through-hole among the plurality of main rotor through-holes 246A-246H included in the main valve rotor body 240, thereby placing adjacent through-holes among the plurality of main rotor through-holes 246A-246H in fluid communication with each other.

[0167] The main valve rotor cover 244 is coupled to the main valve rotor body 240 to axially confine the first sealing member 278 between the main valve rotor cover and the main valve rotor body, as shown in FIG. Fig.11 , Fig.13 and Fig.14 The sealing rib 278R extends into the through holes 246A-246H, while the sealing seat 278B is axially located between the main valve rotor cover 244 and the main valve rotor body 240.

[0168] The main valve rotor body 240 includes a body plate 252, an outer wall 254 and an inner wall 256. Fig.13 and Fig.14 The main body plate 252 extends circumferentially around the first rotor axis 236A and is shaped to define a plurality of main rotor through holes 246A-246H that extend axially through the main body plate. The outer wall 54 extends circumferentially around the outer edge of the main body plate 252. The outer wall 54 extends axially from the outer edge of the main body plate 252 in the same direction as the main valve rotor shaft 242. The inner wall 256 extends circumferentially around the first rotor axis 236A and is axially away from the main body plate 252 at a position radially inward of the outer wall 254.

[0169] The main valve rotor cover 244 includes a cover plate 258 and diverter housings 260, 261, 262, as shown in FIG. Figures 11 to 14 As shown. The cover plate 58 extends circumferentially around the first rotor axis 236A. Each of the splitter housings 260 , 261 , 262 defines one of the cover chambers 248A- 248C and is configured to extend around at least two through holes 246A- 246H in the body plate 252 .

[0170] In the illustrated embodiment, each of the outer wall 254 and the inner wall 256 of the main valve rotor body 240 has a deflectable locking tab 264, 266, such as Fig.14 The locking pieces 264 and 266 function similarly to Figures 1 to 9 The number of locking tabs 264, 266 on the outer and inner walls 254, 256 may vary.

[0171] like Fig.11 and Fig.13 As shown, the throttle rotor 238 includes a throttle rotor plate 268, a throttle rotor wall 270, and a throttle rotor shaft 272. The throttle rotor plate 268 extends circumferentially around the second rotor axis 238A. The throttle rotor wall 270 extends circumferentially around the outer edge of the throttle rotor plate 268. The throttle rotor wall 270 extends axially from the outer edge of the throttle rotor plate 268. The throttle rotor shaft 272 extends away from the throttle rotor plate 268 along the second rotor axis 238A in the same direction as the throttle rotor wall 270.

[0172] The throttle rotor plate 268 is formed to define a plurality of throttle rotor through-holes 274A-274C. Each of the throttle rotor through-holes 274A-274C extends axially through the throttle rotor plate 268 and extends circumferentially partially around the second rotor axis 238A.

[0173] The first sealing system 216, also referred to as the primary sealing system 216, includes a first biasing assembly 276 and a first sealing member 278, such as Fig.11 The first biasing assembly 276 is configured to selectively exert an axial force on the main valve rotor 236 to push the main valve rotor 236 toward a plurality of apertures 234A1, 234A2, 234B, 234C, 234D, 234G, 234H formed in the valve housing body 220, thereby pushing the first sealing member 278 toward the valve housing body 220 and engaging the first sealing member with the bottom surface 220S of the valve housing body 220 to improve the seal between the main valve rotor 236 and the valve housing body 220 when the main valve rotor 236 is in one of the different predetermined positions. In the illustrated embodiment, the first biasing assembly 276 includes a cam ramp and a cam surface, similar to Figures 1 to 9 A first biasing assembly 76 is shown in the embodiment shown.

[0174] The second sealing system 218, also referred to as the throttle valve sealing system 218, includes a second biasing assembly 284 and a second sealing member 286, such as Figures 11 to 13 The second biasing assembly 284 is configured to exert an axial force on the second valve rotor 238 to push the second valve rotor 238 toward the second sealing member 286 and the bottom surface 220S of the valve housing body 220 and engage the second valve rotor with the second sealing member 286 .

[0175] The second biasing assembly 284 includes a biasing member 288, a biasing member cover 290, and a flange 289 formed on the upper valve housing cover 22. Figures 11 to 13 In the illustrated embodiment, the second biasing assembly 284 includes Figures 1 to 9 The second biasing assembly 84 in the illustrated embodiment functions similarly.

Claims

1. A multi-way valve, comprising: a valve housing including a valve housing body and a housing cover, the valve housing body being shaped to define a first valve chamber, a second valve chamber in fluid communication with the first valve chamber, and a plurality of orifices in fluid communication with at least one of the first valve chamber and the second valve chamber, and the housing cover being coupled to the valve housing body to close openings of the first valve chamber and the second valve chamber; as well as A valve flow controller, comprising a first valve rotor and a second valve rotor, wherein the first valve rotor is arranged in the first valve chamber of the valve housing body and is configured to rotate relative to the valve housing around a first rotor axis, and the second valve rotor is arranged in the second valve chamber of the valve housing body and is configured to rotate relative to the valve housing around a second rotor axis parallel to the first rotor axis, when the first valve rotor and the second valve rotor rotate around the corresponding rotor axes to a plurality of different predetermined positions, the first valve rotor and the second valve rotor cooperate to define a plurality of flow paths to control the flow of fluid through the valve housing, Characterized in that the first valve rotor includes a plurality of first rotor through holes extending axially through the first valve rotor relative to the first rotor axis, and the second valve rotor includes a plurality of second rotor through holes extending axially through the second valve rotor relative to the second rotor axis.

2. The multi-way valve according to claim 1, characterized in that: The first valve rotor includes: a first valve rotor body extending circumferentially around the first rotor axis; a first valve rotor shaft extending axially away from the first valve rotor body along the first rotor axis; and a first valve rotor cover connected to the first valve rotor body to rotate therewith, the first valve rotor body being formed to include the plurality of first rotor through holes, the plurality of first rotor through holes extending axially through the first valve rotor body relative to the first rotor axis, and the first valve rotor cover being formed to define at least one chamber, and when the first valve rotor cover is connected to the first valve rotor body, the at least one chamber extends around adjacent first rotor through holes in the first valve rotor body, thereby interconnecting the adjacent first rotor through holes in fluid communication with each other.

3. The multi-way valve according to claim 2, characterized in that: The first valve rotor body includes: a body plate extending circumferentially around the first rotor axis and defining the plurality of first rotor through holes; an outer wall extending circumferentially around the outer edge of the body plate and extending axially away from the body plate in the same direction as the first valve rotor axis; and an inner wall extending circumferentially around the first rotor axis and extending axially away from the body plate at a position radially inward of the outer wall, and the first valve rotor cover is located between the outer wall and the inner wall of the first valve rotor body.

4. The multi-way valve according to claim 3, characterized in that: The first valve rotor cover includes: a cover plate extending circumferentially about the first rotor axis; and at least one diverter housing defining the at least one chamber.

5. The multi-way valve according to claim 1, characterized in that: The first valve rotor body also includes a plurality of deflectable locking tabs configured to engage with the first valve rotor cover when the first valve rotor cover is in an engaged position on the first valve rotor body, thereby preventing axial movement of the first valve rotor cover relative to the first valve rotor body when the first valve rotor cover is in the engaged position.

6. The multi-way valve according to claim 1, characterized in that: The second valve rotor includes: a second valve rotor plate extending circumferentially around the second rotor axis; a second valve rotor wall extending circumferentially around an outer edge of the second valve rotor plate and extending axially from the second valve rotor plate; and a second valve rotor shaft extending away from the second valve rotor plate in the same direction as the second valve rotor wall along the second rotor axis, the second valve rotor plate being formed to include the plurality of second rotor through holes extending axially through the second valve rotor plate relative to the second rotor axis, and one of the plurality of second rotor through holes included in the plurality of second rotor through holes extending at least partially circumferentially around the second valve axis.

7. The multi-way valve according to any one of claims 1 to 6, characterized in that: The multi-way valve also includes a first sealing system and a first biasing assembly, the first sealing system including a plurality of first sealing members, the first sealing members being connected to the first valve rotor so as to rotate therewith and engaging with an axially facing surface of the valve housing body, the first biasing assembly being configured to selectively apply an axial force on the first valve rotor to push the plurality of first sealing members connected to the first valve rotor toward the valve housing body when the first valve rotor is in one of the plurality of different predetermined positions, thereby improving the seal between the first valve rotor and the valve housing body, at least one first sealing member included in the plurality of first sealing members extending around an adjacent first rotor through hole in the first valve rotor.

8. The multi-way valve according to claim 7, characterized in that: The multi-way valve also includes a second sealing system, which includes: a second sealing member, axially arranged between the valve housing body and the second valve rotor; and a second biasing assembly, configured to apply an axial force on the second valve rotor to push the second valve rotor toward the second sealing member, and the second biasing assembly includes: a biasing member, arranged around the second valve rotor shaft; a biasing member cover, arranged on the biasing member and connected to the second valve rotor shaft so as to rotate together with the second valve rotor shaft; and a flange formed on the housing cover, when the housing cover is connected to the valve housing body, the flange engages with the biasing member cover so as to load the second biasing assembly when the second valve rotor is arranged in the second valve chamber.

9. The multi-way valve according to any one of claims 1 to 6, characterized in that: The multi-way valve also includes a first sealing system and a first biasing assembly, the first sealing system including a first sealing member, the first sealing member being connected to the first valve rotor so as to rotate together with the first valve rotor, and the first sealing member being engaged with an axially facing surface of the valve housing body, and the first biasing assembly being configured to selectively apply an axial force on the first valve rotor so as to push the first sealing member toward the valve housing body when the first valve rotor is in one of the multiple different predetermined positions, thereby improving the seal between the first valve rotor and the valve housing body, the first sealing member including: a sealing base extending circumferentially around the first rotor axis; and a plurality of sealing rings, each extending axially from the sealing base through one of the multiple first rotor through holes in the first valve rotor to engage the axially facing surface of the valve housing body, and the first sealing member being formed to define a plurality of openings, each of the multiple openings extending through the sealing base and one of the multiple sealing rings.

10. The multi-way valve according to claim 9, characterized in that: The multi-way valve also includes a second sealing system, which includes: a second sealing member, axially arranged between the valve housing body and the second valve rotor; and a second biasing assembly, configured to apply an axial force on the second valve rotor to push the second valve rotor toward the second sealing member, and the second biasing assembly includes: a biasing member, arranged around the second valve rotor shaft; a biasing member cover, arranged on the biasing member and connected to the second valve rotor shaft so as to rotate together with the second valve rotor shaft; and a flange formed on the housing cover, when the housing cover is connected to the valve housing body, the flange engages with the biasing member cover so as to load the second biasing assembly when the second valve rotor is arranged in the second valve chamber.

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