Nine-way fluid valve
By using a single-layer valve core design and a multi-mode fluid channel layout with a rotating valve core, the structure of the fluid valve is simplified, flow resistance and production costs are reduced, and efficient fluid communication in multiple working modes is achieved, making it suitable for thermal management integration modules in new energy vehicles.
Patent Information
- Application Number
- CN202423227607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing multi-way water valves have complex valve core structures, high production costs, numerous assembly steps, and large flow resistance, making them difficult to meet the needs of thermal management integrated modules for new energy vehicles.
It adopts a single-layer valve core design, and multiple working modes can be achieved by rotating the valve core, which simplifies the fluid channel layout, reduces flow resistance, and reduces assembly steps.
This achieves a low overall height, low production cost, and low flow resistance in the fluid valve, enabling efficient fluid communication in multiple operating modes and meeting the needs of thermal management integration modules for new energy vehicles.
Smart Images
Figure CN223609387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of multi-pass fluid valve especially relates to a nine-pass fluid valve with multiple working modes. BACKGROUND
[0002] With the development of new energy automobile technology, the cooling liquid control fluid valve of the thermal management integrated module for new energy automobile, especially the multi-pass cooling liquid flow control water valve, becomes a key component of new energy automobile.
[0003] The current multi-pass water valve spool adopts a design scheme of two layers and more, the spool structure is complex, the production cost is high, and there are more assembly processes and larger flow resistance. UTILITY MODEL CONTENTS
[0004] In order to overcome the above problems, a new nine-pass fluid valve is needed, which simplifies the design of the spool, the overall height of the product is low, and multiple different working modes can be realized by rotating the spool.
[0005] The utility model provides a nine-pass fluid valve, which comprises: a valve housing having a first housing end and an opposite second housing end and defining a cylindrical valve chamber, wherein the first housing end is provided with nine ports, and the second housing end is an open end; a cylindrical spool rotatably arranged in the valve chamber; a valve end cover fixedly mounted to the valve housing at the second housing end; and a flat sealing member having nine openings corresponding to the nine ports and fixed to the side of the first housing end facing the spool; wherein the spool defines four fluid passages located in the same level and independent of each other, and the four fluid passages and the nine ports are arranged such that by rotating the spool, the nine-pass fluid valve can be switched between multiple different working modes, wherein in each working mode, each pair of ports in four pairs of ports in the nine ports is in fluid communication through the corresponding fluid passage, and the remaining ports are cut off.
[0006] According to one scheme of the utility model, the spool comprises a spool body and a spool end cover, wherein the spool body is cylindrical and has a first end, a second end and a central rotating shaft, wherein the central rotating shaft extends beyond the first end, the spool end cover is disc-shaped, and the spool end cover is fixedly connected to the first end of the spool body by welding to define a spool chamber, the four fluid passages include a first fluid passage and a second fluid passage arranged at intervals along a first circumferential direction, and a third fluid passage and a fourth fluid passage arranged at intervals along a second circumferential direction, wherein the center of the first circle and the center of the second circle are both the center of the second end of the spool body, and the second circle is located radially outside the first circle.
[0007] According to one preferred scheme of the utility model, the second end of the valve core body is equipped with first orifice, second orifice, third orifice, fourth orifice, fifth orifice, sixth orifice, seventh orifice and eighth orifice which are evenly spaced along the circumference thereof, wherein the first fluid channel extends between the first orifice and the third orifice, the second fluid channel extends between the fifth orifice and the seventh orifice, the third fluid channel extends between the third orifice and the fifth orifice, and the fourth fluid channel extends between the sixth orifice and the eighth orifice.
[0008] According to one preferred scheme of the utility model, the valve housing is cylindrical, and the nine ports include first port, second port, third port, fourth port, fifth port, sixth port, seventh port, eighth port and ninth port which are evenly spaced along a circumference in the first housing end, wherein the center of the circle is the center of the second housing end.
[0009] According to one scheme of the utility model, the plurality of different working modes include a first working mode, in which: the first port is in fluid communication with the seventh port through the first fluid channel; the fourth port is in fluid communication with the sixth port through the second fluid channel; the second port is in fluid communication with the eighth port through the third fluid channel; the third port is in fluid communication with the fifth port through the fourth fluid channel; and the ninth port is blocked. In the first working mode, the angle of the valve core relative to the valve housing is defined as 0°.
[0010] According to one scheme of the utility model, the plurality of different working modes further include a second working mode, which can be converted to by rotating the valve core in the first working mode by 45 degrees in the clockwise direction, in which: the sixth port is in fluid communication with the eighth port through the first fluid channel; the third port is in fluid communication with the fifth port through the second fluid channel; the first port is in fluid communication with the seventh port through the third fluid channel; the second port is in fluid communication with the fourth port through the fourth fluid channel; and the ninth port is blocked.
[0011] According to one scheme of the utility model, the plurality of different working modes further include a third working mode, which can be converted to by rotating the valve core in the first working mode by 90 degrees in the clockwise direction, in which: the fifth port is in fluid communication with the seventh port through the first fluid channel; the second port is in fluid communication with the fourth port through the second fluid channel; the sixth port is in fluid communication with the ninth port through the third fluid channel; the first port is in fluid communication with the third port through the fourth fluid channel; and the eighth port is blocked.
[0012] According to one scheme of the utility model, the multiple different working modes further include a fourth working mode, the nine-port fluid valve can be switched to the fourth working mode by rotating the valve core in the first working mode by 180 degrees along the clockwise direction, under the fourth working mode: the third port is in fluid communication with the fifth port through the first fluid channel; the second port is in fluid communication with the ninth port through the second fluid channel; the fourth port is in fluid communication with the sixth port through the third fluid channel; the first port is in fluid communication with the seventh port through the fourth fluid channel; and the eighth port is blocked.
[0013] According to one scheme of the utility model, the multiple different working modes further include a fifth working mode, the nine-port fluid valve can be switched to the fifth working mode by rotating the valve core in the first working mode by 225 degrees along the clockwise direction, under the fifth working mode: the second port is in fluid communication with the fourth port through the first fluid channel; the first port is in fluid communication with the seventh port through the second fluid channel; the third port is in fluid communication with the fifth port through the third fluid channel; the sixth port is in fluid communication with the ninth port through the fourth fluid channel; and the eighth port is blocked.
[0014] According to one scheme of the utility model, the multiple different working modes further include a sixth working mode, the nine-port fluid valve can be switched to the sixth working mode by rotating the valve core in the first working mode by 270 degrees along the clockwise direction, under the sixth working mode: the first port is in fluid communication with the third port through the first fluid channel; the sixth port is in fluid communication with the eighth port through the second fluid channel; the second port is in fluid communication with the fourth port through the third fluid channel; the fifth port is in fluid communication with the seventh port through the fourth fluid channel; and the ninth port is blocked.
[0015] Thanks to the above technical scheme, the utility model can produce at least one of the following beneficial technical effects:
[0016] The single-layer valve core structure, i.e. the fluid channels are located in the same layer of the valve core, simplifies the overall structure, the mold is simple, the assembly process is less, and the manufacturing cost is low; the single-layer flow channel design has low flow resistance, avoids the influence of large flow resistance caused by the straight up and down of fluid, and improves the performance of the water valve product; the single-layer design structure has low overall height, and provides a solution for customers who have requirements on the height of the water valve. In addition, the original inlet and outlet positions are changed from the outermost position to the middle of the inner and outer flow channels; the structure is simple, the assembly is simple, the production cost is low, the flow resistance is low, the overall height is low, and multiple function modes of the multi-port water valve can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0017] Further features and advantages of the utility model will be better understood by reading the following detailed description with reference to the accompanying drawings:
[0018] Figure 1 is a perspective view of an embodiment of a nine-port fluid valve according to the present application;
[0019] Figure 2 is Figure 1 an exploded view of the nine-port fluid valve shown in
[0020] Figure 3 is a perspective view of a valve core for a nine-port fluid valve according to the present application;
[0021] Figure 4 is Figure 3 a front view of the valve core shown in
[0022] Figure 5 is Figure 3 a rear view of the valve core shown in
[0023] Figure 6 is a plan view of a valve housing for a nine-port fluid valve according to the present application, showing the layout of the ports;
[0024] Figure 7 is a schematic diagram of the on-off state of the ports when the nine-port fluid valve according to the present application is in a first working mode;
[0025] Figure 8 is Figure 7 a schematic diagram of the on-off state of the ports when the nine-port fluid valve in
[0026] Figure 9 is Figure 7 a schematic diagram of the on-off state of the ports when the nine-port fluid valve in
[0027] Figure 10 is Figure 7 a schematic diagram of the on-off state of the ports when the nine-port fluid valve in
[0028] Figure 11 is Figure 7 a schematic diagram of the on-off state of the ports when the nine-port fluid valve in
[0029] Figure 12 is Figure 7 a schematic diagram of the on-off state of the ports when the nine-port fluid valve in DETAILED DESCRIPTION
[0030] A multi-port fluid valve, specifically a nine-port fluid valve, such as a nine-port disc valve, will now be described with reference to the accompanying drawings and by way of example in accordance with the present application. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order not to unnecessarily obscure the present application. Also, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
[0031] Figure 1 A perspective view of one embodiment of a nine-port fluid valve 100, such as a nine-port disc valve, in accordance with the present application is shown. Figure 2 Figure 1 An exploded view of the nine-port fluid valve 100 is shown. As can be seen from the figure, the nine-port fluid valve 100 comprises a valve housing 10, a valve core 20, a valve end cover 30 and a sealing member 40. The valve housing 10 is generally cylindrical and has a first housing end 11 and an opposite second housing end 12, defining a cylindrical valve chamber. The first housing end 11 is provided with nine ports, and the second housing end 12 is completely open, with the valve core 20 being rotatably arranged in the valve chamber. The valve end cover 30 is fixedly mounted to the second housing end 12 of the valve housing 10, for example by laser welding.
[0032] In this embodiment, the valve end cover 30 is generally circular. Advantageously, the sealing member 40 is configured as a circular sheet and is provided with nine openings corresponding to the nine ports in the first housing end 11 of the valve housing, where "corresponding" means that the layout and shape of the nine openings in the sealing member are exactly the same as the layout and shape of the nine ports in the valve end cover. The sealing member 40 is fixedly mounted to the side of the first housing end facing the valve core, i.e. the sealing member 40 is located between the valve core 20 and the valve housing 10, in particular the first housing end 11. It is advantageous for the sealing member 40 to be configured as a planar structure, which is simple in structure, easy to manufacture and assemble compared to a crimped radial sealing member. For example, the sealing member 40 can be in the form of a PTFE / EPDM composite gasket, which has a main body of high-grade EPDM terpolymer, which not only can be reused, but also has very good chemical resistance.
[0033] Figure 3 Figure 4 Figure 5 A preferred embodiment of the valve core 20 according to the utility model is shown. The valve core 20 is composed of two parts, i.e. a valve core body 21 and a valve core end cover 22, which are both made of plastic material for example. As can be seen from the figure, the valve core body 21 is cylindrical and has a first end 211, a second end 212 and a central rotating shaft 23, wherein the central rotating shaft 23 extends beyond the first end 221, and the valve core end cover 22 is disc-shaped and is sealingly fixedly connected to the first end 211 of the valve core body 21 to define a valve core chamber, for example by laser welding, and the four fluid passages include first and second fluid passages P1 and P2 (also referred to as the first group of fluid passages) arranged along a first circumferential direction and third and fourth fluid passages P3 and P4 (also referred to as the second group of fluid passages) arranged along a second circumferential direction, wherein the center of the first circle and the center of the second circle are both the center of the second end of the valve core body, and the second circle is located radially outside the first circle. As can be seen from the figure, the first, second, third and fourth fluid passages P1, P2, P3 and P4 are all substantially arc-shaped. In a preferred embodiment, the arc lengths of the first and second fluid passages P1 and P2 are the same and diametrically opposite along the first circle; the arc lengths of the third and fourth fluid passages P3 and P4 are the same and diametrically opposite along the second circle, and the arc lengths of the first and second fluid passages are smaller than the arc lengths of the third and fourth fluid passages.
[0034] In particular reference to Figure 4 and Figure 5 , the second end 212 of the valve core body is provided with first, second, third, fourth, fifth, sixth, seventh and eighth orifices 1', 2', 3', 4', 5', 6', 7' and 8' uniformly spaced along the circumference thereof, which are arranged on the same circumference and located between the first and second groups of fluid passages, simplifying the structure of the valve core and thereby reducing the overall height of the fluid valve. As can be seen from the figure, the first fluid passage P1 extends between the first and third orifices 1' and 3', the second fluid passage P2 extends between the fifth and seventh orifices 5' and 7', the third fluid passage P3 extends between the third and fifth orifices 3' and 5', and the fourth fluid passage P4 extends between the sixth and eighth orifices 6' and 8'. In the above-mentioned assembled nine-fluid valve, by rotating the valve core 20, the orifices in the second end of the valve core can be aligned with the ports in the second housing end of the valve housing accordingly, thereby ensuring fluid communication between the pairs of ports in the valve housing and the corresponding fluid passages. In the embodiment shown in the figure, the above-mentioned orifices can all be sector-shaped and have the same size (arc length). It should be understood that the above-mentioned orifices can also be selected to have other suitable shapes and sizes, and the sizes can also be different, according to specific needs.
[0035] In this embodiment, the spool end cap 22 is sealingly fixed to the spool body 21, the rubber seal can be omitted, not only can save cost, and avoid the leakage problem caused by the use of seal. In addition, the mechanical stop (not shown) is also provided on the spool end cap, which is used to cooperate with the corresponding structure in the valve housing to limit the rotation angle of the spool 20 in the spool chamber, for example, to limit the rotation of the spool 20 between 0-180 degrees. The mechanical stop is thus arranged not only to ensure its strength, but also to ensure the dimensional accuracy to ensure the position control accuracy.
[0036] Referring to Figure 6 , the layout of the nine ports in the valve end cap 30 is schematically shown. In one example, the valve housing 1 is cylindrical, and the nine ports include first port 1, second port 2, third port 3, fourth port 4, fifth port 5, sixth port 6, seventh port 7, eighth port 8 and ninth port 9, which are uniformly spaced along a circumference at the first housing end 11, wherein the center of the circle is the center of the second housing end. As can be seen from the figure, the projection of these ports in the plane in which they lie is, for example, a fan ring. In a preferred embodiment, the sizes, for example, the arc lengths, of the first port 1, the second port 2, the third port 3, the fourth port 4, the fifth port 5, the sixth port 6 and the seventh port 7 arranged in sequence are the same, while the sizes, for example, the arc lengths, of the adjacent eighth port 8 and ninth port 9 are the same, and the sizes of the eighth port 8 and the ninth port 9 are smaller than those of the first to seventh ports. However, the above-mentioned sizes and shapes are exemplary, and other suitable port shapes and sizes can also be selected as needed, which are also covered within the scope of the present application.
[0037] In the present application, through the cooperation of the layout of the four fluid passages in the spool 20 and the layout of the nine ports in the first housing end 11 of the valve housing 10, the nine-port fluid valve 100 can regularly switch between multiple different working modes (positions) when the spool 20 is rotated in the valve chamber. In the following Figures 7 to 12 , the blue part represents the first passage P1, the magenta part represents the second passage P2, the green part represents the third passage P3 and the yellow part represents the fourth passage P4.
[0038] Figure 7 The first working mode of the nine-port fluid valve 100 is shown, in which the rotation angle of the spool 20 is set to 0°. In this first working mode, the first port 1 is in fluid communication with the seventh port 7 through the first fluid passage P1; the fourth port 4 is in fluid communication with the sixth port 6 through the second fluid passage P2; the second port 2 is in fluid communication with the eighth port 8 through the third fluid passage P3; the third port 3 is in fluid communication with the fifth port 5 through the fourth fluid passage P4; and the ninth port 9 is blocked, i.e., not in fluid communication with other ports.
[0039] Figure 8 A second mode of operation of the nine-port fluid valve 100 is shown, where the valve core 20 is rotated by an angle of 45 degrees, i.e. the valve core 20 in the first mode of operation is rotated by 45 degrees in the clockwise direction to convert the nine-port fluid valve to the second mode of operation. In this second mode of operation, the sixth port 6 is in fluid communication with the eighth port 8 through the first fluid passage PI; the third port 3 is in fluid communication with the fifth port 5 through the second fluid passage P2; the first port 1 is in fluid communication with the seventh port 7 through the third fluid passage P3; the second port is in fluid communication with the fourth port 4 through the fourth fluid passage P4; and the ninth port 9 is blocked, i.e. not in fluid communication with the other ports.
[0040] Figure 9 A third mode of operation of the nine-port fluid valve 100 is shown, where the valve core 20 is rotated by an angle of 90 degrees, i.e. the valve core 20 in the first mode of operation is rotated by 90 degrees in the clockwise direction to convert the nine-port fluid valve to the third mode of operation. In the third mode of operation, the fifth port 5 is in fluid communication with the seventh port 7 through the first fluid passage PI; the second port 2 is in fluid communication with the fourth port 4 through the second fluid passage P2; the sixth port 6 is in fluid communication with the ninth port 9 through the third fluid passage P3; the first port 1 is in fluid communication with the third port 3 through the fourth fluid passage P4; and the eighth port 8 is blocked, i.e. not in fluid communication with the other ports.
[0041] Figure 10 A fourth mode of operation of the nine-port fluid valve 100 is shown, where the valve core 20 is rotated by an angle of 180 degrees, i.e. the valve core 20 in the first mode of operation is rotated by 180 degrees in the clockwise direction to convert the nine-port fluid valve to the fourth mode of operation. In the fourth mode of operation, the third port 3 is in fluid communication with the fifth port 5 through the first fluid passage PI; the second port 2 is in fluid communication with the ninth port 9 through the second fluid passage P2; the fourth port 4 is in fluid communication with the sixth port 6 through the third fluid passage P3; the first port 1 is in fluid communication with the seventh port 7 through the fourth fluid passage P4; and the eighth port 8 is blocked, i.e. not in fluid communication with the other ports.
[0042] Figure 11 A fifth mode of operation of the nine-port fluid valve 100 is shown, where the valve core 20 is rotated by an angle of 225 degrees, i.e. the valve core 20 in the first mode of operation is rotated by 225 degrees in the clockwise direction to convert the nine-port fluid valve to the fifth mode of operation. In the fifth mode of operation, the second port 2 is in fluid communication with the fourth port 4 through the first fluid passage PI; the first port 1 is in fluid communication with the seventh port 7 through the second fluid passage P2; the third port 3 is in fluid communication with the fifth port 5 through the third fluid passage P3; the sixth port 6 is in fluid communication with the ninth port 9 through the fourth fluid passage P4; and the eighth port 8 is blocked, i.e. not in fluid communication with the other ports.
[0043] Figure 12 A sixth working mode of the nine-port fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 270 degrees, that is, rotating the valve core 20 in the first working mode by 270 degrees in the clockwise direction converts the nine-port fluid valve to the sixth working mode. In the sixth working mode, the first port 1 is in fluid communication with the third port 3 through the first fluid channel P1; the sixth port 6 is in fluid communication with the eighth port 8 through the second fluid channel P2; the second port 2 is in fluid communication with the fourth port 4 through the third fluid channel P3; the fifth port 5 is in fluid communication with the seventh port 7 through the fourth fluid channel P4; and the ninth port 9 is blocked, that is, not in fluid communication with other ports.
[0044] Although the utility model has disclosed as above with preferable embodiments, the utility model is not limited to this. Any combinations, changes and modifications made by any person skilled in the art without departing from the spirit and scope of the utility model should be included in the protection scope of the utility model, therefore the protection scope of the utility model should be limited by the range defined in the claims.
Claims
1. A nine-port fluidic valve characterized by, The nine-port fluid valve (100) comprises: a valve housing (10) having a first housing end (11) and an opposite second housing end (12) and defining a cylindrical valve chamber, wherein the first housing end is provided with nine ports, and the second housing end is an open end; a cylindrical valve core (20) rotatably arranged in the valve chamber; a valve end cover (30) fixedly mounted to the valve housing at the second housing end (12); and a flat seal (40) having nine openings corresponding to the nine ports and fixed to a side of the first housing end (11) facing the valve core; wherein the valve core (20) defines four fluid passages in the same level and independent of each other, and the four fluid passages and the nine ports are arranged such that by rotating the valve core (20), the nine-port fluid valve can be switched between a plurality of different working modes, wherein in each of the working modes, each of the four pairs of ports among the nine ports is in fluid communication through a corresponding fluid passage, and the remaining ports are blocked.
2. The nine-port fluidic valve of claim 1, wherein, The valve core (20) comprises a valve core body (21) and a valve core end cover (22), wherein the valve core body (21) is cylindrical and has a first end (211), a second end (212) and a central rotation axis (23) extending beyond the first end, the valve core end cover (22) is disc-shaped and is sealingly fixedly connected to the first end (211) of the valve core body (21) to define a valve core chamber, and the four fluid passages include a first fluid passage (P1) and a second fluid passage (P2) arranged along a first circumferential direction, and a third fluid passage (P3) and a fourth fluid passage (P4) arranged along a second circumferential direction, wherein the center of the first circle and the center of the second circle are both the center of the second end of the valve core body, and the second circle is located radially outside the first circle.
3. The nine-port fluidic valve of claim 2, wherein, The second end (212) of the valve core body is provided with a first orifice (1'), a second orifice (2'), a third orifice (3'), a fourth orifice (4'), a fifth orifice (5'), a sixth orifice (6'), a seventh orifice (7') and an eighth orifice (8') uniformly spaced along the circumference thereof, wherein the first fluid passage (P1) extends between the first orifice (1') and the third orifice (3'), the second fluid passage (P2) extends between the fifth orifice (5') and the seventh orifice (7'), the third fluid passage (P3) extends between the third orifice (3') and the fifth orifice (5'), and the fourth fluid passage (P4) extends between the sixth orifice (6') and the eighth orifice (8').
4. The nine-port fluidic valve of claim 2 or 3, wherein, The valve housing (10) is cylindrical, the nine ports include a first port (1), a second port (2), a third port (3), a fourth port (4), a fifth port (5), a sixth port (6), a seventh port (7), an eighth port (8) and a ninth port (9) uniformly spaced along a circumference at the first housing end (11), wherein the center of the circle is the center of the second housing end.
5. The nine-port fluidic valve of claim 4, wherein, The plurality of different operating modes includes a first operating mode in which: The first port is in fluid communication with the seventh port through the first fluid passage (P1); The fourth port is in fluid communication with the sixth port through the second fluid passage (P2); The second port is in fluid communication with the eighth port through the third fluid passage (P3); The third port is in fluid communication with the fifth port through the fourth fluid passage (P4); and The ninth port is blocked.
6. The nine-port fluidic valve of claim 5, wherein, The plurality of different operating modes also includes a second operating mode in which the nine-port fluid valve is transitioned by rotating the spool (20) in the first operating mode 45 degrees clockwise, in which: The sixth port is in fluid communication with the eighth port through the first fluid passage (P1); The third port is in fluid communication with the fifth port through the second fluid passage (P2); The first port is in fluid communication with the seventh port through the third fluid passage (P3); The second port is in fluid communication with the fourth port through the fourth fluid passage (P4); and The ninth port is blocked.
7. The nine-port fluidic valve of claim 6, wherein, The plurality of different operating modes also includes a third operating mode in which the nine-port fluid valve is transitioned by rotating the spool (20) in the first operating mode 90 degrees clockwise, in which: The fifth port is in fluid communication with the seventh port through the first fluid passage (P1); The second port is in fluid communication with the fourth port through the second fluid passage (P2); The sixth port is in fluid communication with the ninth port through the third fluid passage (P3); The first port is in fluid communication with the third port through the fourth fluid passage (P4); and The eighth port is blocked.
8. The nine-port fluidic valve of claim 7, wherein, The plurality of different operating modes also includes a fourth operating mode in which the nine-port fluid valve is transitioned by rotating the spool (20) in the first operating mode 180 degrees clockwise, in which: The third port is in fluid communication with the fifth port through the first fluid passage (P1); The second port is in fluid communication with the ninth port through the second fluid passage (P2); The fourth port is in fluid communication with the sixth port through the third fluid passage (P3); The first port is in fluid communication with the seventh port through the fourth fluid passage (P4); and The eighth port is blocked.
9. The nine-port fluidic valve of claim 8, wherein, The plurality of different operating modes further includes a fifth operating mode into which the nine-port fluid valve is transitioned by rotating the spool (20) in the first operating mode 225 degrees in a clockwise direction, in which fifth operating mode: the second port is in fluid communication with the fourth port through the first fluid passage (PI); the first port is in fluid communication with the seventh port through the second fluid passage (P2); the third port is in fluid communication with the fifth port through the third fluid passage (P3); the sixth port is in fluid communication with the ninth port through the fourth fluid passage (P4); and the eighth port is blocked.
10. The nine-port fluidic valve of claim 9, wherein, The plurality of different operating modes further includes a sixth operating mode into which the nine-port fluid valve is transitioned by rotating the spool (20) in the first operating mode 270 degrees in a clockwise direction, in which sixth operating mode: the first port is in fluid communication with the third port through the first fluid passage (PI); the sixth port is in fluid communication with the eighth port through the second fluid passage (P2); the second port is in fluid communication with the fourth port through the third fluid passage (P3); the fifth port is in fluid communication with the seventh port through the fourth fluid passage (P4); and the ninth port is blocked.