Fluid dispensing system

Abstract

The invention relates to a system for dispensing a fluid, intended to communicate at least some of the branches of a fluid circuit with one another according to different configurations of the system, comprising a dispensing member (10) intended to be rotatable about a longitudinal axis, the invention relates to a dispensing member (10) for dispensing a fluid into a container (12) for selectively serving branches to communicate with each other according to an angular position of the dispensing member, the dispensing member comprising a body (12) defining a plurality of chambers (24, 25) for circulating the fluid, the body comprising one or more guide shapes (28a, 28b, 29) for guiding the fluid in the chambers, the one or more guide shapes having axial recesses (32a, 32b, 32c).

Description

Technical Field

[0001] This invention relates to a system for distributing fluids, particularly heat transfer liquids. This distribution system will find applications, for example, in the field of motor vehicles. Background Technology

[0002] Fluid circuits are known to allow for the thermal regulation of individual components or areas of a motor vehicle, particularly its passenger compartment. With the increasing prevalence of hybrid or electric motorization, these circuits have numerous branches to ensure the vehicle's thermal management needs are met under various operating modes.

[0003] To allow fluid to flow through its various branches, such a circuit comprises a large number of valves, which connect the branches to each other in different configurations depending on the desired operating mode. These numerous valves increase the pressure drop. Furthermore, they complicate the control of fluid flow and increase the cost of these circuits.

[0004] Rotary valves have also been proposed, allowing for multiple inlet / outlet connections to provide more possibilities for fluid flow between branches of the circuit compared to standard two-way, three-way, or four-way valves. That said, these valves are significantly bulky, which limits their use. Furthermore, the torque required to actuate them can be quite high. Summary of the Invention

[0005] The object of the present invention is to at least partially overcome the aforementioned disadvantages, and to this end, a distribution system for distributing fluid is provided, which is designed to connect at least some branches of a fluid circuit to each other depending on different configurations of the system. The distribution system includes a distribution member (10) designed to be rotatable about a longitudinal axis so as to selectively serve interconnected branches depending on the angular position of the distribution member. The distribution member includes a body (12) defining a plurality of chambers (24, 25) for fluid flow, the body including one or more guide shapes (28a, 28b, 29) for guiding fluid in the chambers, the one or more guide shapes having axial recesses (32a, 32b, 32c), particularly radially open axial recesses.

[0006] This configuration ensures a reduction in the mass of the dispensing component, which allows for a reduction in the torque required for its rotational actuation. Furthermore, by limiting the contact surface of the dispensing component with the fixed portion of the dispensing system, friction generated by the dispensing component is reduced.

[0007] The distribution system according to the present invention may include one or more of the following features, which may be adopted independently or in combination with each other:

[0008] The main body has a first plate and / or a second plate for rotational guidance;

[0009] The one or more guide shapes are at least partially defined by branches that connect to each other at the central portion of the dispensing member to at least partially define a chamber;

[0010] The body includes a central block that at least partially defines the chamber;

[0011] The central block includes the branch;

[0012] The axial recess of the guide shape extends from the first plate toward the second plate;

[0013] The branch is hollow, such that the axial recess is inside the branch;

[0014] The internal recess of the branch extends from the first plate toward the second plate;

[0015] The internal recess of the branch is a blind recess that opens on the first or second plate;

[0016] The guide shape portion is defined by a guide member;

[0017] Each guide has one of the axial recesses with a radial opening;

[0018] The branch extends generally radially from the central portion;

[0019] The first plate and the second plate are parallel to each other and / or perpendicular to the axis of rotation;

[0020] The central block is included between the first plate and the second plate;

[0021] The branch includes a wall extending along the longitudinal axis from the first plate in the direction toward the second plate;

[0022] The walls of the branch have roughly the same thickness at every point of the branch;

[0023] The guide has a substantially the same thickness at each point of the guide;

[0024] The system includes a seal;

[0025] The one or more guide shapes have a distal edge that is intended to make generally linear contact with the seal;

[0026] Each distal edge includes at least one first chamfer and at least one second chamfer, such that the first chamfer and the second chamfer together define a rib;

[0027] The ribs are circular in shape;

[0028] The rib extends along the longitudinal axis from the first plate toward the second plate;

[0029] Each branch has at least one distal edge;

[0030] The distal edge of the branch is opposite to the central part;

[0031] The guide is positioned at an angle near the lateral edge of the dispensing member between the first and second branches in the branch;

[0032] Each guide has two distal edges that are angled and opposite to each other;

[0033] One or more chambers (referred to as the first chamber) are defined by one of the first branches, one of the second branches, and at least one of the guides;

[0034] One of the chambers (called the second chamber) is confined between the first branches;

[0035] The walls of the branches are generally flat;

[0036] The walls of the first branch defining the second chamber are generally parallel to each other;

[0037] The dispensing system includes: a housing defining a cavity for dispensing components;

[0038] The seal is located in the cavity;

[0039] The seal is located between the distribution member and the housing, particularly on the inner surface of the side wall of the housing;

[0040] The seal includes a first portion, referred to as an annulus, located at the first plate of the dispensing member in the form of a ring or a corner sector of a ring, and / or a second portion, referred to as an annulus, located at the second plate of the dispensing member in the form of a ring or a corner sector of a ring;

[0041] The allocation system consists of a single allocation level;

[0042] The housing is provided with multiple inlet and / or outlet channels distributed in the corner sectors around the periphery of the housing, referred to as the peripheral ones;

[0043] The seal is configured to limit the risk of fluid leakage between the peripheral inlet and / or peripheral outlet channels;

[0044] The seal opens at an angle to the first of the peripheral inlet and / or outlet conduits;

[0045] The dispensing member has a first peripheral guiding edge and / or a second peripheral guiding edge;

[0046] The first peripheral edge and / or the second peripheral edge are located at the first plate and the second plate, respectively;

[0047] The outer edge is circular; the seal includes a first annular rim and / or a second annular rim for engaging with the first outer edge and / or the second outer edge, respectively;

[0048] The first rim and / or the second rim open at an angle to the first peripheral inlet and / or outlet conduit;

[0049] The seal includes one or more axial branches connecting the first rim and the second rim;

[0050] The axial branches are respectively connected to the angled ends of the first rim and the second rim on either side of the first peripheral inlet and / or outlet channel;

[0051] External entrances and / or exits, for example, laterally, particularly radially, through openings, particularly radial openings, lead to the cavity;

[0052] The axial branch is located at an angle on either side of the opening;

[0053] The sealing element includes a body and a coating element, the body being fixed to the housing, and the coating element contacting the dispensing component;

[0054] The seal has a smooth inner surface;

[0055] The cavity of the housing has a second height, and the openings of the inlet channel and / or outlet channel each have a third height, such that the first height of the dispensing member is lower than the second height of the cavity and higher than the third height of the opening;

[0056] The openings of the peripheral entrances and / or exits in the first set of peripheral entrances and / or exits have a first width, and the openings of the peripheral entrances and / or exits in the second set of peripheral entrances and / or exits have a second width, wherein the first width is greater than the second width.

[0057] At least one of the corner sectors has a smaller size than the other corner sectors;

[0058] The housing includes at least five peripheral inlet and / or outlet channels;

[0059] At least three of the plurality of peripheral entrance and / or exit channels belong to a first group, and each channel in the first group occupies a first corner sector;

[0060] At least two of the plurality of peripheral entrance and / or exit channels belong to the second group, and each channel in the second group occupies the second corner sector;

[0061] The size of the second corner sector is smaller than the size of the first corner sector;

[0062] One or more radial openings in the first chamber allow at least some of the angular positions of the body to define the passage of fluid through the first chamber or at least one first chamber between different peripheral inlet and / or outlet channels of the distribution system;

[0063] The distribution component, particularly the central block, has a fluid distribution channel extending axially along a longitudinal axis, and a second chamber in the chamber communicating with the distribution channel, the second chamber being radially open, such that at least some of the angular positions of the body define the passage of fluid through the second chamber and the distribution channel between an inlet and / or outlet channel referred to as the axial direction and at least one of the peripheral inlet and / or outlet channels of the distribution system.

[0064] The first corner sector is approximately equal to at least 72 degrees;

[0065] The second angular sector is approximately equal to at most 36 degrees;

[0066] The number of external entrances and / or exits is six;

[0067] The outer entrances and / or exits of the first group are spaced at angles in a regular manner;

[0068] The first plate and the second plate are parallel to each other and / or perpendicular to the axis of rotation;

[0069] The first plate and the second plate are located on either side of the first chamber along the longitudinal axis;

[0070] The distribution component has a plane of symmetry;

[0071] Each first chamber has an angular amplitude between 120 degrees and 150 degrees;

[0072] The distribution channel is centered about the longitudinal axis;

[0073] The first chamber and / or the second chamber extend at an angle around the longitudinal axis;

[0074] The distribution channel communicates with the second chamber at all or part of the height of the chamber, which extends along the longitudinal axis;

[0075] The number of the first chambers is two;

[0076] The distributing components are configured to rotate less than 360 degrees, or even less than 300 degrees;

[0077] The distribution member is configured such that the passage cross section between one of the chambers and one of the peripheral inlet and / or outlet channels of the first group and the passage cross section between the same chamber in the chamber and one of the peripheral inlet and / or outlet channels of the second group are substantially the same in at least one angular position.

[0078] The distribution system is configured such that rotation of the distribution member allows fluid to flow between one of the peripheral inlet and / or outlet channels of the second group and one of the peripheral inlet and / or outlet channels of the first group, which is achieved by blocking the flow between another of the peripheral inlet and / or outlet channels of the second group and the same one of the peripheral inlet and / or outlet channels of the first group, thereby opening the flow between the other peripheral inlet and / or outlet channels of the first group.

[0079] The distribution system has multiple fluid distribution orifices, which are used to connect to branches of the fluid loop.

[0080] The inlet and / or outlet channels lead to the distribution holes respectively;

[0081] The housing has mounting platforms distributed around its periphery;

[0082] The platform includes a through mounting hole; the platform includes a recess. Attached Figure Description

[0083] Other features and advantages of the invention will become apparent upon reading the following detailed description, with reference to the accompanying drawings for understanding, in which:

[0084] [ Figure 1 An example of a fluid distribution system according to the invention is schematically shown in a perspective view based on a transverse section.

[0085] [ Figure 2 The perspective view schematically illustrates [ Figure 1 The allocation components of the allocation system.

[0086] [ Figure 3 The perspective view based on the transverse section is schematically shown. Figure 4 The distribution components of ]

[0087] [ Figure 4 The axial section is schematically shown. Figure 1 The housing of the distribution system,

[0088] [ Figure 5 Repeat in the top view [ Figure 1 ],

[0089] [ Figure 6 The transverse cross-section is schematically shown. Figure 1In the allocation system of ] Figure 2 The first allocation position of the allocation component.

[0090] [ Figure 7 The transverse cross-section is schematically shown. Figure 1 In the allocation system of ] Figure 2 The second allocation position of the allocation component.

[0091] [ Figure 8 The transverse cross-section is schematically shown. Figure 1 In the allocation system of ] Figure 2 The third allocation position of the allocation component.

[0092] [ Figure 9 The transverse cross-section is schematically shown. Figure 1 In the allocation system of ] Figure 2 The fourth allocation position of the allocation component.

[0093] [ Figure 10 The transverse cross-section is schematically shown. Figure 1 In the allocation system of ] Figure 2 The fifth allocation position of the allocation component.

[0094] [ Figure 11 The perspective view shows the results according to [ Figure 1 The system's seals.

[0095] In these figures, the same reference numerals correspond to the same or similar elements. Detailed Implementation

[0096] refer to Figures 1 to 4 The present invention relates to a system (100) for distributing fluid. The distribution system 100 is intended to connect at least some branches of a fluid loop to each other, depending on different configurations of the system. The distribution system may have multiple fluid distribution orifices (not shown). These orifices are intended to connect to branches of the loop, respectively.

[0097] The distribution system 100 includes a distribution member 10, which is designed to be rotatable about a longitudinal axis X so as to selectively serve branches that are placed as interconnected, depending on the angular position of the distribution member 10.

[0098] The dispensing member 10 also includes a body 12 defining a plurality of chambers 24, 25 for fluid flow. The body 12 includes one or more guide shapes 28a, 28b, 29 for fluid in the chambers 24, 25. These guide shapes 28a, 28b, 29 also have axial recesses 32a, 32b, 32c. Advantageously, one or more of these axial recesses, here recess 32c, open radially outward toward the body 12.

[0099] Each of the guide shapes 28a, 28b, 29 advantageously has a distal edge 34 designed to make substantially linear contact with the seal of the system.

[0100] Reference indicates the distribution member 10 according to the present invention. Figure 2 and Figure 3 The body 12 of the distributing member may ultimately include a first plate 14 and / or a second plate 16 for rotational guidance, which are advantageously parallel to and / or perpendicular to the longitudinal axis X, and connected by the body 12. The body 12 has a lateral edge 18, which in this example is defined at an imaginary column at the peripheral edge 20 of the connecting plates 14, 16. One or more distal edges 34 are located at said imaginary column.

[0101] The axial recesses 32a, 32b, and 32c of the guide shapes 28a, 28b, and 29 advantageously extend from the first plate 14 along the longitudinal axis X in the direction toward the second plate 16.

[0102] Each distal edge 34 may include at least one first chamfer 35a and at least one second chamfer 35b, such that the first chamfer 35a and the second chamfer 35b together define a rib 36. In use, the rib 36 locally compresses the seal of the dispensing system 100.

[0103] The first and second chamfers 35a, 35b also have the advantage of preventing blockage of the dispensing member 10 during rotation. In fact, during rotation of the dispensing member, the distal edge 34 of the guide shape must pass through an opening in the seal, which may be rectangular, corresponding to openings 111, 112 of the peripheral inlet and / or outlet channels 110a-110f. Without these chamfers 35a, 35b, the dispensing member 10 would risk blocking the edge of the seal and / or creating hard spots during rotation.

[0104] The rib 36 can be circular in shape. This provides the advantage of not damaging the seal when the rib 36 rubs against it during use, because the rib 36 does not have any sharp edges. In this way, the life of the seal can be increased, which ensures a better seal.

[0105] Rib 36 can extend from the first plate 14 toward the second plate 16 along the longitudinal axis X by connecting the outer edges 20 of the first plate 14 and the second plate 16.

[0106] Advantageously, the outer edge 20 of each plate is rounded. This has the same advantages as one or more rounded ribs 36.

[0107] The body 12 of the distributing member 10 has an outer diameter Φr and a first height Hr. Advantageously, the ratio of the outer diameter Φr to the first height Hr defines a parameter R. This parameter R is between 0.6 and 2.7.

[0108] The parameter R represents the optimal value obtained so that the distribution system 100 has a limited pressure drop and control over the friction generated by the distribution member 10, while also having a reduced compactness of the distribution system 100.

[0109] It should be understood that a higher outer diameter φr compared to the first height Hr will tend to increase friction, while a higher first height Hr compared to the outer diameter φr will tend to increase pressure drop, especially if the fluid passage toward the distribution member 10 has a shape close to a simple slit.

[0110] If the outer diameter Φr is too small, the width of the fluid inlet / outlet passage will be very small with a constant passage cross-section, which is also undesirable for pressure drop, even if the initial height Hr increases.

[0111] If the outer diameter Φr is suitable and compact for placing the fluid inlet / outlet passage, the initial height Hr will be limited by the requirements of the passage cross-section. Even though a high height Hr could improve pressure drop, this is undesirable because the distribution system 100 will be less compact, which means more material and therefore additional cost, and torque will increase due to the higher contact surface, which means more friction.

[0112] It should also be noted that, with a constant cross-section of the inlet / outlet channel, a high first height Hr implies a narrow passage and will tend to contribute to deformation of the seal, which will be further described below.

[0113] The dispensing system 100 may further include a housing 102 defining a cavity 104 for the dispensing member 10. It should be understood that the cavity 104 has a diameter substantially the same as the diameter of the dispensing member 10, and has clearance required for the dispensing member 10 to rotate within the cavity 104. Lateral edges 18 of the body 12 are positioned within the clearance opposite and adjacent to the inner surface of the lateral wall 106 of the housing 102.

[0114] It should be understood that the first and second plates 14, 16 (when present) have a diameter substantially the same as the outer diameter φr of the dispensing member 10 and are configured to participate in its rotational guidance within the cavity 104 of the housing 102. They are particularly those that, together with the distal edge 34, may generate the friction that is limited by the present invention. The value Hr involved in the calculation of parameter R takes into account or disregards the thickness of the plates 14, 16. For example, it is measured between the mid-plane of the first plate 14 and the mid-plane of the second plate 16.

[0115] The distributing member 10 may have a plane of symmetry. The distributing member 10 may be configured to rotate in a clockwise and / or counterclockwise direction. Therefore, the distributing member 10 may be configured to rotate less than 360 degrees, or even less than 300 degrees, or even less than 240 degrees.

[0116] refer to[ Figure 3 The body 12 of the dispensing member 10 may have a central block 12' that at least partially defines chambers 24, 25. This central block 12' may be included between the first plate 14 and the second plate 16. The body 12, particularly the central block 12', may include branches 28a, 28b connected to each other at the central portion 26 of the dispensing member 10 to at least partially define chambers 24, 25. These branches 28a, 28b advantageously extend substantially radially from the central portion 26 to the lateral edge 18.

[0117] Advantageously, branches 28a and 28b at least partially define the guide shape portion. Each of branches 28a and 28b is provided with at least one of distal edges 34, wherein two distal edges 34 are provided at two opposite angular ends of branches 28a and 28b. As will be understood, the distal edges 34 of branches 28a and 28b are radially opposite to the central portion 26.

[0118] Advantageously, branches 28a and 28b are hollow, such that some of the axial recesses 32a and 32b are inside branches 28a and 28b.

[0119] This means that each internal recess 32a, 32b of branches 28a, 28b includes a closed profile, preventing fluid from penetrating into the recess in question. Specifically, the internal recesses 32a, 32b of branches 28a, 28b can be formed by corner sectors and defined by an inner edge (e.g., central portion 26), an outer edge, and two radial edges. For example, walls 30a, 30b, 30c connect the inner and outer edges. The outer edge extends between two of the distal edges 34 of the same branch. The internal recesses 32a, 32b of branches 28a, 28b can extend along the longitudinal axis X from the first plate 14 toward the second plate 16. The internal recesses 32a, 32b can be blind recesses, i.e., open only on one side. This allows the distributing member 10 to maintain a certain rigidity. Specifically, the internal recesses 32a, 32b can be open on the first plate 14 or the second plate 16, as in […]. Figure 1 This is even more evident in the image. As a result, the molding of the component 10 becomes easier.

[0120] The guide shape can also be defined by guides 29. These guides 29 are advantageously positioned at an angle near the lateral edge 18 of the distributing member 10 between the first and second branches of branches 28a, 28b. Advantageously, each guide 29 is provided with two angled, opposing distal edges 34.

[0121] Advantageously, each of the guides 29 has one of the axial recesses 32c with a radial opening. In other words, in the configuration of the dispensing system 100, the axial recess 32c leads to the cavity 104 of the housing 102, which will be further described below. This allows for limiting the contact surface with the seal, thereby reducing the necessary actuating torque. It should be understood that fluid does not flow in the axial recess with the radial opening; instead, fluid passes over the other side of the guide 29.

[0122] One or more chambers, referred to as first chamber 24, are defined by one of the first branches 28a and one of the second branches 28b, and at least one of the guides 29 positioned at an angle between the two branches 28a, 28b in question. One of the chambers, referred to as second chamber 25, is defined between the first branches 28a. The branches 28a, 28b defining chambers 24, 25 advantageously include inner walls 30a and outer walls 30b, 30c, which extend along the longitudinal axis X from the first plate 14 toward the second plate 16.

[0123] The inner wall 30a of the first branch 28a that defines the second chamber 25 may be substantially planar. These inner walls 30a may be substantially parallel to each other.

[0124] The outer wall 30b of the first branch 28a and the outer wall of the second branch 28b are arranged to form an angle that can form an edge or be rounded.

[0125] Advantageously, the angular amplitude α of each first chamber 25 is between 120 degrees and 150 degrees.

[0126] The walls 30a, 30b, and 30c of branches 28a and 28b advantageously have substantially the same thickness at each point of branches 28a and 28b, except for their distal edges 34 forming the thinner portions. These walls 30a, 30b, and 30c may be substantially planar.

[0127] Advantageously, the guide 29 has substantially the same thickness at each point except for the distal edge 34 that forms the thinner portion.

[0128] The uniform thickness at each point of branches 28a, 28b and / or guide 29 has the advantage of facilitating material injection during the molding of the dispensing member. In this way, the problem of deformation of the part (here, the dispensing member) during its manufacturing is avoided.

[0129] Advantageously, each outer wall 30b of the first branch 28a is substantially parallel to the first inner wall 31a closest to it of the guide 29, and the outer wall 30c of the second branch 28b is substantially parallel to the second inner wall 31b of the same guide 29. It should be understood that the walls 31a, 31b of each guide 29 are arranged to form an angle that can form an edge or be rounded. The first chamber 24 is thus presented in the form of a bent conduit.

[0130] The inner walls 31a, 31b of the guide 29 may be substantially planar. They are positioned opposite the axial recess 32c of the guide 29 under discussion.

[0131] In the illustrated embodiment, the first and / or second guide shapes and / or branches 28a, 28b also have one of the radially opening axial recesses between their respective distal edges 34. It should be understood that fluid does not flow within the radially opening axial recess in question; fluid flows over either side of the first chamber 24. The radially opening axial recess is here separated from one of the inner axial recesses 32a, 32b by its outer edge.

[0132] The housing 102 is provided with peripheral inlet and / or outlet channels 110a-110f. These channels 110a-110f advantageously communicate laterally with the cavity 104 through openings 111, 112. The number of peripheral inlet and / or outlet channels 110a-110f is advantageously at least five. In the example shown, the number of peripheral inlet and / or outlet channels 110a-110f is six, namely inlet and / or outlet channel 110a, second inlet and / or outlet channel 110b, third inlet and / or outlet channel 110c, fourth inlet and / or outlet channel 110d, fifth inlet and / or outlet channel 110e, and sixth inlet and / or outlet channel 110f. Each of the peripheral inlet and / or outlet channels 110a-110f is configured to project radially from the sidewall 106 of the housing 102.

[0133] The central block 12' may have one or more first chambers 24 configured to be radially open, such that the angular position of the body 12 defines the passage of fluid through the first chambers 24 or at least one of the first chambers 24 between the different peripheral inlet and / or outlet channels 110a-110f of the distribution system 100. In the example shown, the number of first chambers 24 is two.

[0134] The central block 12' of the dispensing member 10 also has a fluid dispensing channel 22. This dispensing channel 22 extends axially along the longitudinal axis X. Advantageously, the first dispensing channel 22 is centered about the longitudinal axis X.

[0135] The central block 12' also has a second chamber 25 communicating with the distribution channel 22. Furthermore, the second chamber 25 is radially open.

[0136] The first chamber 24 and / or the second chamber 25 extend at an angle around the longitudinal axis X.

[0137] Thus, at least some of the angular positions of the body 12 of the distribution member 10 define the passage of fluid through the second chamber 25 and the distribution channel 22 between the axial inlet and / or outlet channel 21 and at least one of the peripheral inlet and / or outlet channels 110a-110f of the distribution system 100.

[0138] This axial distribution channel 22 allows for further limitation of the perimeter of the distribution member 10, and thus the radial volume of the distribution system 100.

[0139] Advantageously, the dispensing channel 22 communicates with the second chamber 25 at all or part of its height. This height of the second chamber 25 extends along the longitudinal axis X. The communication between the dispensing channel 22 and the second chamber 25 is through the opening 23.

[0140] Advantageously, the distribution system 100 comprises a single stage. In other words, the peripheral inlet and / or outlet channels 110a-110f lead to the distribution member 10 at essentially the same level along the longitudinal axis. This allows for improved axial compactness of the system.

[0141] Advantageously, the peripheral entrance and / or exit channels 110a-110f are distributed on the periphery of the housing 102 in the corner sectors P1, P2.

[0142] [ Figure 4 The diagram shows a view of the housing 102 in axial section. In this example, the cavity 104 of the housing 102 may have a second height Hc, and the openings 111, 112 of the peripheral inlet and / or outlet channels 110a-110f each have a third height h, such that the first height Hr of the dispensing member 10 is lower than the second height Hc of the cavity 104 and higher than the third height h of the openings 111, 112.

[0143] Still in [ Figure 4 As can be seen from the diagram, the openings 111 of the peripheral inlet and / or outlet channels 110a-110d of the first group G1 of multiple peripheral inlet and / or outlet channels 110a-110f can have a first width D, and the openings 112 of the peripheral inlet and / or outlet channels 110e-110f of the second group G2 of multiple peripheral inlet and / or outlet channels 110a-110f can have a second width d. The first width D is greater than the second width d.

[0144] In the application, the passage cross-section of the openings 111, 112 of the peripheral inlet and / or outlet channels 110a-110f is defined as the first width D of the opening 111 or the second width of the opening 112 multiplied by the third height h.

[0145] Advantageously, the cross-section of the passage is configured to be at least substantially equal to the cross-section of the pipe used in hybrid or electric vehicles, particularly in fluid circuits used for temperature regulation.

[0146] [ Figure 5 [] represents another view of the allocation system 100. Figure 5 An example of a first corner sector P1 belonging to one of the peripheral entrance and / or exit channels 110a-110d of the first group G1 is also shown, as well as an example of a second corner sector P2 belonging to one of the peripheral entrance and / or exit channels 110e-110f of the second group G2. [In [ Figure 5In this example, the first corner sector P1 is advantageously substantially equal to at least 72 degrees. Still in this example, the second corner sector P2 is advantageously substantially equal to at most 36 degrees. Corner sectors P1 and P2 are measured by taking into account the wall thickness of the peripheral inlet and / or outlet channels 110a-110f. The angular ends of adjacent corner sectors are merged. In other words, one corner sector ends when another corner sector begins.

[0147] Advantageously, the outer entrance and / or exit channels 110a-110d of the first group G1 are spaced at an angle in a regular manner.

[0148] Advantageously, at least three of the multiple peripheral entrance and / or exit channels 110a-110f belong to the first group G1. Each channel 110a-110d of the first group G1 occupies a given first corner sector P1.

[0149] Advantageously, at least two of the multiple peripheral inlet and / or outlet channels 110a-110f, 110e-110f, belong to a second group G2. Each channel 110e-110f of this second group G2 occupies a second corner sector P2. The size of the second corner sector P2 is smaller than the size of the first corner sector P1.

[0150] It should be noted that the first corner sector P1 occupied by the peripheral entrance and / or exit channels 110a-110d of the first group G1 is not necessarily equal. Similarly, the second corner sector P2 occupied by the peripheral entrance and / or exit channels 110e-110f of the second group G2 is not necessarily equal. On the other hand, the largest corner sector of the peripheral entrance and / or exit channels of the second group G2 is smaller than the smallest corner sector of the peripheral entrance and / or exit channels of the first group G1.

[0151] The housing 102 may also include mounting platforms 114 distributed on the periphery of the housing 102. These mounting platforms 114 have through holes 116 oriented along the longitudinal axis X. These platforms 114 are designed to allow the dispensing system 100 to be mounted on external components (e.g., modules), particularly via the insertion holes 116 and screws in the external components.

[0152] The distributing member 10 is also configured such that rotation of the distributing member 10 allows fluid to flow between one of the peripheral inlet and / or outlet channels 110e-110f of the second group G2 and one of the peripheral inlet and / or outlet channels 110a-110d of the first group G1, which is achieved by preventing flow between another of the peripheral inlet and / or outlet channels 110e-110f of the second group G2 and the same one of the peripheral inlet and / or outlet channels 110a-110d of the first group G1, thus keeping flow open between the other peripheral inlet and / or outlet channels 110a-110d of the first group G1. This will be about Figure 6 And further development thereafter.

[0153] Furthermore, the distribution member 10 can be configured such that the passage cross-section between one of the chambers 24, 25 and one of the peripheral inlet and / or outlet channels 110a-110d of the first group G1, and the passage cross-section between the same chamber 24, 25 and one of the peripheral inlet and / or outlet channels 110e-110f of the second group G2, are substantially the same in at least one angular position, as shown regarding Figures 6 to 10 It is better revealed.

[0154] One or more first chambers 24 are radially connected to peripheral inlet and / or outlet channels 110a-110f. Advantageously, one or more first chambers 24 are connected to at most two of the peripheral inlet and / or outlet channels 110a-110f, and this is independent of the angular position of the body 12 of the dispensing member 10.

[0155] The second chamber 25 of the dispensing member 10 is intended to be radially connected to the peripheral inlet and / or outlet channels 110a-110f. Advantageously, the second chamber 25 is intended to be connected to at most one of the peripheral channels 110a-110f, and this is independent of the angular position of the body 12 of the dispensing member 10.

[0156] The distribution system 100 may include an actuator (not shown), such as a stepper motor, to drive the distribution member 10 to rotate about a longitudinal axis X. The distribution member 10 may then include a drive shaft 40 intended to engage with the actuator. The maximum nominal torque of the actuator is, for example, 2.5 Nm (Newton-meters), particularly for standard pressures in the fluid circuit, such as about 1.2 bar.

[0157] The dispensing system 100 may also include a seal located between the dispensing member 10 and the inner surface of the sidewall 106 of the housing 102, such as... Figure 11 As shown. The seal may include a first portion, referred to as an annulus, in the form of a ring or a corner sector of a ring, located at the first plate 14 of the dispensing member 10, and / or a second portion, referred to as an annulus, in the form of a ring or a corner sector of a ring, located at the second plate 16 of the dispensing member 10. Therefore, the friction discussed is more specifically generated between the seal and the dispensing member 10.

[0158] The distribution system 100 may also include a cover plate (not shown) designed to enclose the housing 102. The cover plate 112 is mounted orthogonally to the longitudinal axis X of the distribution member 10. The cover plate may be fixed, particularly welded, to the housing 102. Furthermore, the cover plate is configured to be fixed to a fluid distribution support having a system distribution orifice, with inlet and / or outlet channels respectively leading to the orifice.

[0159] The following indicates Figures 6 to 10 The different allocation positions of the allocation system 100.

[0160] In the following text, the flow of fluid, particularly heat transfer liquid, through the chambers 24 and 25 of the distribution member 10 is indicated by arrows in the corresponding figures.

[0161] [ Figure 6 The symbol [] indicates a first distribution position of the distribution system 100. In this first distribution position, the second chamber 25 connects the distribution channel 22 to the peripheral inlet and / or outlet channel 110a. One of the first chambers 24 connects the second peripheral inlet and / or outlet channel 110b and the third peripheral inlet and / or outlet channel 110c. The other chamber 24 connects the fourth peripheral inlet and / or outlet channel 110d and the fifth peripheral inlet and / or outlet channel 110e. In this first position, flow in the sixth peripheral inlet and / or outlet channel 110f is blocked.

[0162] [ Figure 7 [ ] indicates the second distribution position of the distribution system 100. In this second distribution position, the second chamber 25 connects the distribution channel 22 to the fourth peripheral inlet and / or outlet channel 110d. One of the first chambers 24 connects the second peripheral inlet and / or outlet channel 110b and the third peripheral inlet and / or outlet channel 110c. The other of the first chambers 24 connects the first peripheral inlet and / or outlet channel 110a and the fifth peripheral inlet and / or outlet channel 110e. In this second position, flow in the sixth peripheral inlet and / or outlet channel 110f is blocked.

[0163] [ Figure 8 The symbol [] indicates the third distribution position of the distribution system 100. In this third distribution position, the second chamber 25 connects the distribution channel 22 to the second peripheral inlet and / or outlet channel 110b. One of the first chambers 24 connects the third peripheral inlet and / or outlet channel 110c and the fourth peripheral inlet and / or outlet channel 110d. The other chamber 24 connects the first peripheral inlet and / or outlet channel 110a and the fifth peripheral inlet and / or outlet channel 110e. In this second position, flow in the sixth peripheral inlet and / or outlet channel 110f is blocked.

[0164] [ Figure 9The symbol indicates the fourth distribution position of the distribution system 100. In this fourth distribution position, the second chamber 25 connects the distribution channel 22 to the second peripheral inlet and / or outlet channel 110b. One of the first chambers 24 connects the third peripheral inlet and / or outlet channel 110c and the fourth peripheral inlet and / or outlet channel 110d. The other chamber 24 connects the first peripheral inlet and / or outlet channel 110a and the sixth peripheral inlet and / or outlet channel 110f. In this second position, flow in the fifth peripheral inlet and / or outlet channel 110e is blocked.

[0165] [ Figure 10 The symbol [] indicates the fifth distribution position of the distribution system 100. In this fifth distribution position, the second chamber 25 connects the distribution channel 22 to the fourth peripheral inlet and / or outlet channel 110d. One of the first chambers 24 connects the second peripheral inlet and / or outlet channel 110b and the third peripheral inlet and / or outlet channel 110c. The other chamber 24 connects the first peripheral inlet and / or outlet channel 110a and the sixth peripheral inlet and / or outlet channel 110f. In this second position, flow in the fifth peripheral inlet and / or outlet channel 110e is blocked.

[0166] exist Figures 6 to 10 In the example shown, as a reminder, the number of angular distribution locations is five, and this means that fluid flows in at least one of chambers 24, 25. The first, second, third, and fourth peripheral inlet and / or outlet channels 110a-110d form a first group G1, and each occupies a first angular sector P1 equal to 72 degrees. The fifth and sixth peripheral inlet and / or outlet channels 110e-110f form a second group G2, and each occupies a second angular sector P2 equal to 36 degrees. This configuration allows for low-amplitude rotation from […]. Figure 6 The second allocation position of ] is converted to [ Figure 9 The fifth allocation position, and also from [ Figure 7 The third allocation position of ] is converted to [ Figure 8 The fourth distribution position is [not specified], and vice versa, while maintaining the same fluid flow on other inlet and / or outlet channels. In this way, the torque required to actuate the distribution system can be reduced.

[0167] Therefore, here, but not necessarily, the peripheral inlet and / or outlet channels 110e, 110f of the second group G2 are angularly adjacent. Furthermore, one peripheral inlet and / or outlet channel 110a of the first group G1 is angularly adjacent to one peripheral inlet and / or outlet channel 110f of the second group G2. Additionally, another peripheral inlet and / or outlet channel 110d of the first group G1 is angularly adjacent to another peripheral inlet and / or outlet channel 110e of the second group G2. This configuration allows for operation according to the invention, wherein the dispensing member 10 rotates clockwise and counterclockwise. It also facilitates the latter's symmetrical configuration.

[0168] like Figure 5 and Figure 11 As better illustrated above, the system also includes a seal 200 located in cavity 104 between dispensing member 10 and housing 102. It is configured to limit the risk of fluid leakage between the peripheral inlet and / or outlet channels 110a-110f during transitions between a given angular position and / or from one angular position to another.

[0169] Advantageously, the seal 200 opens at an angle in conjunction with the first of the peripheral inlet and / or outlet conduits. Here, it is the inlet and / or outlet conduit 110a. "Opening at an angle" means that the seal 200, when used alone, presents a configuration that allows its angular ends to separate from each other, as is the opposite of a seal formed by a complete ring, which is not possible with a complete ring. It should be noted that this angular interruption is visible. Figure 11 ], but in [ Figure 5 It is not visible in the image, and it should be understood that it limits the friction between the dispensing member 10 and the housing 102 compared to a seal formed by a complete ring.

[0170] The seal 200 includes a first and / or second annular rim 202 for engaging with a first and / or second peripheral edge 20, respectively. The first and / or second rims 202 open at an angle to the first peripheral inlet and / or outlet conduit 110a.

[0171] The seal 200 includes one or more axial branches 204a-204e connecting the first and second rims 202. The branches 204a-204e are angled and located on either side of each of the openings 110a-110f. Two of the axial branches 204a, 204e connect the angled ends of the first rim 202 and the second rim 202 on either side of the first peripheral inlet and / or outlet channel 110a.

[0172] The seal 200 is fixed to the housing 102. The housing is provided with axial ribs that engage with axial grooves 208 provided in the seal 200. Alternatively, the grooves are on the housing and the ribs are on the seal.

[0173] The branches 204a-204e of the seal 200 extend at an angle, particularly from 5 to 30°.

[0174] The seal preferably has the form of an angled, open cylindrical cage. The cage is formed here by the rim 202 and / or the branches 204a-204e. A channel (particularly rectangular) for fluid is defined between the rim 202 and / or the branches 204a-204e, particularly opposite to the holes 111, 112.

[0175] The rim 202 and / or the branches 204a-204e here have material recesses 216, which extend at an angle and / or axially, respectively. The material recesses may alternatively be in a dotted shape, particularly at the intersections of the rim 202 and / or the branches 204a-204e.

[0176] Advantageously, as shown, the inner surface of the seal 200 is smooth. In other words, in the illustrated embodiment, the material recess 216 is located on the outer surface of the seal 200.

[0177] The seal 200 includes, for example, a body 210 and a coating 212. The body 210 is fixed to the housing 102. The coating 212 is in sliding contact with the dispensing member 10. The body 210 and the coating 212 are integral with each other, particularly by overmolding.

[0178] The body 210 is made of an elastomer, particularly EPDM, and / or the coating 212 is a material with a sliding effect, particularly PTFE.

[0179] In view of the above, it should be understood that the present invention allows for a reduction in the mass of the dispensing component, and thus a reduction in the overall weight of the dispensing system. Furthermore, the reduction in the mass of the dispensing component allows for a reduction in the torque required for its rotational actuation.

[0180] Preferably, the invention also allows for reduced contact between the dispensing member and the seal, which is positioned between the dispensing member and the housing during use. During use, the distal edge will locally compress the seal, allowing for a seal while limiting friction. Furthermore, the reduction in friction allows for a reduction in the torque required for rotational actuation of the dispensing member.

[0181] This invention also has the advantage of allowing for a variety of fluid distribution possibilities while saving energy. In fact, the variation in the distribution position with low-amplitude rotation reduces the torque required to rotate the distribution member, and thus allows for the use of actuators with lower power.

[0182] The present invention still has the advantage of allowing a reduction in the radial and / or axial volume of the dispensing system 100. In fact, this reduction in bulk can still be improved due to the dispensing channel 22. In fact, the location of the dispensing channel 22 (e.g., central) allows for a simplified architecture of the dispensing member 10, thereby making the dispensing system more compact.

Claims

1. A fluid distribution system (100) for placing at least some of the branches of a fluid circuit in communication with each other according to different configurations of the system, the distribution system (100) comprising a distribution member (10) intended to be able to rotate about a longitudinal axis (X) in order to selectively serve the branches to be placed in communication with each other according to the angular position of the distribution member (10), the distribution member comprising a main body (12) defining a plurality of chambers (24, 25) for the circulation of the fluid, the main body comprising one or more guide shapes (28a, 28b, 29) for the fluid in the chambers, the one or more guide shapes having axial recesses (32a, 32b, 32c), in particular radially open axial recesses (32c).

2. The dispensing system (100) according to claim 1, wherein, The main body (12) has a first plate (14) and / or a second plate (16) for guiding the rotation.

3. The dispensing system (100) according to claim 2, wherein, The one or more guide shapes are at least partially defined by branches (28a, 28b) connected to each other at a central portion (26) of the distribution member (10) to at least partially define the chambers (24, 25).

4. The dispensing system (100) according to any one of claims 2 or 3, wherein, The axial recesses (32a, 32b, 32c) extend from the first plate (14) towards the second plate (16).

5. The dispensing system (100) according to any one of claims 3 to 4, wherein, The branches (28a, 28b) are hollow, so that the axial recesses (32a, 32b) are inside the branches (28a, 28b).

6. The dispensing system (100) according to claim 5, wherein, The internal axial recesses (32a, 32b) of the branches (28a, 28b) are blind recesses that open on the first plate (14) or on the second plate (16).

7. The dispensing system (100) according to any one of claims 3 to 6, wherein, The branches (28a, 28b) comprise walls (30a, 30b, 30c) that extend along the longitudinal axis (X) from the first plate (14) towards the second plate (16).

8. The dispensing system (100) according to claim 7, wherein, The walls (30a, 30b, 30c) of the branches (28a, 28b) have substantially the same thickness at each point of the branches.

9. The dispensing system (100) according to any one of claims 1 to 8, wherein, The one or more guide shapes are at least defined by guides (29).

10. The dispensing system (100) according to claim 9, wherein, Each of the guides (29) has one of the radially open axial recesses (32c).

11. The dispensing system (100) according to any one of claims 9 or 10, wherein, The guides (29) have substantially the same thickness at each point of the guides.

12. The dispensing system of any of the preceding claims, wherein, The one or more guide shapes have a distal edge (34) for substantially linear contact with a seal of the system (100).

13. The dispensing system (100) according to claim 12, wherein, Each distal edge comprises at least one first chamfer (35a) and at least one second chamfer (35b), so that the first chamfer and the second chamfer together define a rib (36).

14. The dispensing system (100) according to claim 13, wherein, The rib (36) has a circular shape.

15. The dispensing system (100) according to claim 14, claim 12 depending on claim 2, wherein, The rib (36) extends along the longitudinal axis (X) from the first plate (14) towards the second plate (16).

16. The dispensing system (100) according to any one of claims 12 to 15, wherein, The main body (12) comprises a central block (12') at least partially defining the chambers (24, 25).

17. The dispensing system (100) according to claim 12 when dependent on claim 3, wherein, Each of said branches (28a, 28b) is provided with at least one of said distal edges (34).

18. The dispensing system (100) according to any one of claims 12 to 14, claim 12 being dependent on claims 3 and 9, wherein, Said guide is angularly interposed between a first branch (28a) and a second branch (28b) of said branches in proximity of a lateral edge (18) of said dispensing member (10).

19. The dispensing system (100) according to claim 18, wherein, Each of said guides (29) is provided with two of said distal edges (34) angularly opposite.

20. The dispensing system according to any one of claims 12 to 19, comprising a housing (102) defining a cavity (104) for said dispensing member (10), said housing (102) being provided with a plurality of peripheral inlet and / or outlet passages (110a-110f), said seal (200) being interposed in said cavity (104) between said dispensing member (10) and said housing (102) to limit the risk of fluid leakage between said peripheral inlet and / or outlet passages (110a-110f), said seal (200) being angularly open in register with a first of said peripheral inlet and / or outlet passages (110a).

21. The system according to the preceding claim, wherein, Said dispensing member (10) has a first and / or a second peripheral guide edge (20), said seal (200) comprising a first and / or a second annular rim (202) for cooperating with said first and / or said second peripheral edge (20), respectively.

22. The system of the preceding claim, wherein, Said first and / or said second rim (202) is angularly open in register with said first peripheral inlet and / or outlet passage (110a).

23. The system according to any one of claims 21 or 22, claim 20 depending on claim 15, said first and / or second peripheral edge (20) being located at said first and / or second plate (14, 16), respectively.

24. The system of any one of claims 21 to 23, wherein, Said seal (200) comprises one or more axial branches (204a-204e) connecting said first rim (202) and said second rim (202).

25. The system according to the preceding claim, wherein, Two of said axial branches (204a, 204e) connect angular end portions of said first rim (202) and said second rim (202) on either side of said first peripheral inlet and / or outlet passage (110a), respectively.

26. The system of any one of claims 24 or 25, wherein, Said peripheral inlet and / or outlet passages (110a-110f) open into said cavity (104) through radial openings (111, 112), said axial branches (204a-204e) being angularly located on either side of each of said openings (111, 112).

27. The system of any one of claims 20 to 26, wherein, Said seal (200) comprises a main body (210) fixed to said housing (102) and a coating (212) in contact with said dispensing member (10).

28. The system of any one of claims 20 to 27, wherein, Said seal (200) has a smooth inner surface.

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