CN108189827B - Combined parking valve and vehicle with same - Google Patents
Combined parking valve and vehicle with same Download PDFInfo
- Publication number
- CN108189827B CN108189827B CN201810051777.9A CN201810051777A CN108189827B CN 108189827 B CN108189827 B CN 108189827B CN 201810051777 A CN201810051777 A CN 201810051777A CN 108189827 B CN108189827 B CN 108189827B
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- valve
- sub
- push rod
- parking
- port
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/16—Arrangements enabling systems to be controlled from two or more positions
Abstract
The invention discloses a combined parking valve and a vehicle with the same, wherein the combined parking valve comprises: the operating rod is suitable for pushing the push rod to a first direction or a second direction; the valve body is provided with an air inlet, a first valve port and a second valve port, and the first valve port and the second valve port are respectively connected with a first parking system and a second parking system; the first sub valve and the second sub valve are arranged in the valve body; the operating rod pushes the push rod to the first direction, and the push rod drives the first sub-valve to move so as to cut off the communication between the air inlet and the first valve port and drives the second sub-valve to move so as to cut off the communication between the air inlet and the second valve port; the operating rod pushes the push rod to the second direction, and the push rod drives the second sub valve to move so as to cut off the air inlet and the second valve port. According to the combined parking valve, the first parking system and the second parking system are controlled by controlling one combined parking valve, so that the operation is simple, the arrangement space is saved, the production cost is reduced, and the driving experience of a driver is improved.
Description
Technical Field
The invention belongs to the technical field of vehicle manufacturing, and particularly relates to a combined parking valve and a vehicle with the same.
Background
Among the correlation technique, the trailer among the large-scale car is when working under abominable operating mode, needs a trailer hand valve that has the trailer effect of cutting off the gas supply of exclusive use, and then need set up the parking hand valve and the trailer hand valve of tractor on the vehicle to make the vehicle have two hand valves, and need set up the trailer hand valve alone in the driver's cabin, occupy great space, influence the overall arrangement in the driver's cabin, and the operation is complicated.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the combined parking valve integrates the parking hand valve and the trailer hand valve, occupies a small space and is convenient to operate.
The invention also provides a vehicle comprising the combined parking valve.
A combination parking valve according to a first aspect of the present invention comprises: a joystick and a push rod, the joystick being adapted to push the push rod in a first direction or a second direction; the parking device comprises a valve body, a first valve port, a second valve port and a control valve, wherein the valve body is provided with an air inlet, the first valve port and the second valve port, and the first valve port and the second valve port are respectively connected with a first parking system and a second parking system; a first sub-valve and a second sub-valve mounted within the valve body; wherein, under normal conditions, the air inlet is communicated with the first valve port and the second valve port; when the operating lever pushes the push rod to a first direction, the push rod drives the first sub-valve to move so as to cut off the air inlet and the first valve port, and drives the second sub-valve to move so as to cut off the air inlet and the second valve port; when the operating lever pushes the push rod to the second direction, the push rod drives the second sub-valve to move so as to cut off the air inlet and the second valve port.
According to the combined parking valve disclosed by the embodiment of the invention, the first sub-valve and the second sub-valve are arranged, the push rod is driven to move through different actions of the operating rod, so that the connection or disconnection among a plurality of chambers can be realized, the first parking system and the second parking system can be controlled by controlling one combined parking valve, the operation is simple, the arrangement space is saved, the production cost is reduced, and the driving experience of a driver is improved.
According to some embodiments of the invention, the valve body has a first cavity in communication with the first valve port and in communication with the intake port through the first sub-valve.
According to some embodiments of the invention, the valve body has a second chamber in communication with the second valve port and with the intake port through the second sub-valve.
According to some embodiments of the invention, the second sub-valve is radially outside the first sub-valve.
According to some embodiments of the invention, the combination parking valve further comprises: the push component comprises a first matching part and a second matching part, when the operating rod moves towards the first direction, the first matching part is used for being matched with the operating rod to drive the push component to rotate, so that the second matching part pushes the push rod to drive the second sub-valve and drives the push component to drive the first sub-valve.
According to some embodiments of the invention, the pushing member is disc-shaped and is pivotably mounted about a fulcrum, the first fitting portion includes a projection provided on one side surface of the pushing member, and the second fitting portion includes a projection provided on a peripheral wall of the pushing member.
According to some embodiments of the invention, the lever has a wedge on a side thereof, the wedge pushing the push rod when the lever is rotated in the second direction.
According to some embodiments of the invention, the push rod is arc-shaped, and a fulcrum of the push rod is located in the middle, one end of the push rod is adapted to press against the second sub-valve, and the other end of the push rod is adapted to press against the wedge block.
According to some embodiments of the invention, the combination parking valve further comprises: a housing to which the lever is pivotally mounted about a first axis and a second axis.
A vehicle according to a second aspect of the embodiment of the invention includes: the combined parking valve comprises a tractor, a trailer and the combined parking valve, wherein the tractor is provided with the first parking system, and the trailer is provided with the second parking system.
The vehicle and the combined parking valve have the same advantages compared with the prior art, and the detailed description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a combined parking valve according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a combination parking valve according to an embodiment of the present invention.
Reference numerals:
a combined parking valve 100,
The operating rod 1, the wedge block 11, the push rod 2, the fulcrum 21,
The valve comprises a valve body 3, an air inlet 31, an air outlet 32, a first valve port 33, a second valve port 34, a first cavity 35, a second cavity 36, a first sub-valve 4, a second sub-valve 5, a pushing component 6, a first matching part 61 and a second matching part 62.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A vehicle according to an embodiment of the present invention includes a tractor having a first parking system by which parking braking of the tractor may be achieved, a trailer having a second parking system by which parking braking of the trailer may be achieved, and a combination parking valve 100.
A combined parking valve 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 2, and the combined parking valve 100 according to an embodiment of the present invention includes a manipulation lever 1, a push rod 2, a valve body 3, a first sub-valve 4, and a second sub-valve 5.
As shown in fig. 1, the joystick 1 may be used to push the push rod 2 in a first direction and a second direction. The first direction may be a direction in which the joystick 1 is pulled backward (see fig. 1), and the second direction may be a direction perpendicular to a plane formed by the up-down front-rear directions (see fig. 1). Can be adjusted according to the actual requirements of the design, such as inward or outward perpendicular to the plane. It is understood that the second direction may be a leftward direction or a rightward direction with respect to the front-rear direction of the vehicle.
As shown in fig. 1, the valve body 3 has an intake port 31, an exhaust port 32, a first valve port 33, and a second valve port 34, the first valve port 33 being connected to a first parking system, and the second valve port 34 being connected to a second parking system. The first valve port 33 and the second valve port 34 can selectively communicate with the intake port 31 or the exhaust port 32, so that different working states (i.e., parking states) of the first parking system and the second parking system can be realized.
As shown in fig. 1, further, the combined parking valve 100 further includes a first sub-valve 4 and a second sub-valve 5, the first sub-valve 4 and the second sub-valve 5 are installed in the valve body 3, and the communication state between the first valve port 33 and the second valve port 34 and the intake port 31 or the exhaust port 32 can be adjusted by adjusting the positions of the first sub-valve 4 and the second sub-valve 5, so that various working states of the first parking system and the second parking system can be controlled.
As shown in fig. 2, in a normal state, the air inlet 31 is communicated with the first valve port 33 and the second valve port 34, the first parking system and the second parking system are ventilated, and no braking force is provided (i.e. the vehicle is in a normal driving state).
As shown in fig. 2, when the joystick 1 pushes the push rod 2 in the first direction, the push rod 2 drives the first sub-valve 4 to move so as to cut off the communication between the air inlet 31 and the first valve port 33, and the push rod 2 drives the second sub-valve 5 to move so as to cut off the communication between the air inlet 31 and the second valve port 34, that is, the air inlet 31 is not communicated with the first valve port 33, and the air inlet 31 is not communicated with the second valve port 34, so that the air cut-off of the first parking system and the second parking system is realized, the first parking system provides a braking force for the tractor, and the second parking system provides a braking force for the trailer, so as to achieve the purposes of parking the tractor and parking the.
Specifically, when the push rod 2 drives the first sub-valve 4 to move, the first valve port 33 and the second valve port 34 are both communicated with the exhaust port 32. At this time, the first valve port 33 and the second valve port 34 are both in the gas-off state, the first parking system can realize parking of the tractor, and the second parking system can realize parking of the trailer.
It will be appreciated that when the push rod 2 moves the first sub-valve 4, the second sub-valve 5 is also moved by the push rod 2, and the operating rod 1 moves in the first direction. When the first sub-valve 4 and the second sub-valve 5 move, the communication state between the first valve port 33 and the air inlet 31, the communication state between the second valve port 34 and the air inlet 31, the communication state between the first valve port 33 and the air outlet 32, and the communication state between the second valve port 34 and the air outlet 32 are adjusted, so that the air-on/off states in the first parking system and the second parking system can be adjusted.
As shown in fig. 2, when the operating lever 1 pushes the push rod 2 in the second direction, the push rod 2 moves the second sub-valve 5 to shut off the air inlet 31 and the second valve port 34. At this time, the first valve port 33 may be in communication with the air inlet 31, and the first parking system is continuously powered (i.e., the first parking system does not provide braking force to the tractor). The second valve port 34 communicates with the exhaust port 32 and the second parking system is de-energized so that the second parking system provides braking force to the trailer. It can be understood that when the vehicle is running under severe conditions (such as a slope or rainy and snowy weather), the second parking system needs to be cut off, so as to provide braking force for the trailer, and the driving safety can be improved under the condition that the tractor is not braked.
According to the combined parking valve 100 provided by the embodiment of the invention, the first sub-valve 4 and the second sub-valve 5 are arranged, the push rod 2 is driven to move through different actions of the operating rod 1, so that the connection or disconnection among a plurality of chambers can be realized, the first parking system and the second parking system can be controlled by operating one combined parking valve 100, the operation is simple, the arrangement space is saved, the production cost is reduced, and the driving experience of a driver is improved.
As shown in fig. 1, in the parking combination valve 100 according to the embodiment of the present invention, the valve body 3 has a first chamber 35, the first chamber 35 is communicated with the first port 33 and communicated with the intake port 31 through the first sub-valve 4, and thus the communication state between the first port 33 and the intake port 31 can be adjusted by adjusting the position of the first sub-valve 4. When the first sub-valve 4 is in a position to disconnect the inlet port 31 from the first chamber 35, the first port 33 is not communicated with the inlet port 31; when the first sub-valve 4 is in a position to communicate the intake port 31 with the first chamber 35, the first port 33 communicates with the intake port 31.
As shown in fig. 1, in the parking valve 100 according to the embodiment of the present invention, the valve body 3 has the second chamber 36, the second chamber 36 communicates with the second port 34, and communicates with the intake port 31 through the second sub-valve 5, and thus the communication state of the second port 34 with the intake port 31 can be adjusted by adjusting the position of the second sub-valve 5. When the second sub-valve 5 is in a position to disconnect the intake port 31 from the second chamber 36, the second port 34 is not communicated with the intake port 31; when the second sub-valve 5 is in a position to communicate the intake port 31 with the second chamber 36, the second valve port 34 communicates with the intake port 31.
It is understood that when the first valve port 33 is disconnected from the intake port 31, the first valve port 33 can communicate with the exhaust port 32; when the second port 34 is disconnected from the intake port 31, the second port 34 may also communicate with the exhaust port 32. Thus, the air cut-off of the first parking system and the second parking system can be realized.
As shown in fig. 1, in the embodiment of the present invention, the second sub-valve 5 is radially disposed outside the first sub-valve 4, which facilitates the matching of the push rod 2 and the second sub-valve 5, and facilitates the operation rod 1 in the combined parking valve 100 to drive the push rod 2 to push the second sub-valve 5, so that the layout of the components in the combined parking valve 100 is more reasonable, the structure is simple, and the production and manufacturing are convenient.
As shown in fig. 1, in the embodiment of the present invention, a wedge 11 is disposed on a side surface of the joystick 1, and when the joystick 1 moves in the second direction, the wedge 11 pushes the push rod 2, so that the joystick 1 can drive the push rod 2 to move, and the wedge 11 can amplify the driving force of the joystick 1, thereby facilitating parking of the trailer.
Further, the push rod 2 is arc-shaped, the fulcrum 21 of the push rod 2 is located in the middle, one end of the push rod 2 can abut against the second sub-valve 5, the other end of the push rod can abut against the wedge block 11, and the push rod 2 can rotate around the fulcrum 21. By driving the operating rod 1 to move towards the second direction, the operating rod 1 can drive the push rod 2 to rotate, and the other end of the push rod 2 can abut against the second sub-valve 5 and drive the second sub-valve 5 to move.
Specifically, when the operating lever 1 is operated to move in the second direction, the wedge block 11 on the operating lever 1 abuts against the push rod 2, and when the wedge block 11 contacts with one end of the push rod 2, the wedge block 11 is matched with the push rod 2 and drives the push rod 2 to rotate around the fulcrum 21, and the other end of the push rod 2 can abut against the second sub-valve 5 and drive the second sub-valve 5 to move, so that the on-off state of the second valve port 34 and the air inlet 31 can be controlled.
In some alternative embodiments of the invention, the combination parking valve 100 further comprises a housing to which the lever 1 is pivotably mounted about a first axis and a second axis. The structure facilitates the movement of the operating rod 1 to the first direction and the second direction, and further facilitates the operating rod 1 to drive the push rod 2 and other components, so that the on-off air states of the first parking system and the second parking system can be better adjusted.
It will be appreciated that, with reference to fig. 1, the first axis is an axis perpendicular to a plane defined by the upper, lower, front and rear sides and passing through the center of the fulcrum 21, and the second axis is an axis perpendicular to the lever 1 and passing through the center of the fulcrum 21.
As shown in fig. 1, in some embodiments of the present invention, the combined parking valve 100 may further include a pushing member 6, and the pushing member 6 may include a first engaging portion 61 and a second engaging portion 62, when the operating lever 1 moves towards the first direction, the first engaging portion 61 may be configured to engage with the operating lever 1, and further may drive the pushing member 6 to rotate around the fulcrum 21, so that the second engaging portion 62 pushes the push rod 2, and the pushing member 2 drives the first sub-valve 4. The second engaging portion 62 can be pressed against the end of the push rod 2 engaged with the second sub-valve 5, so as to drive the push rod 2 to rotate around the fulcrum 21.
In a further embodiment of the invention, the pushing member 6 is disc-shaped and is pivotally mounted about a fulcrum 21. The first matching part 61 comprises a convex block arranged on one side surface of the pushing component 6, the second matching part 62 comprises a convex block arranged on the peripheral wall of the pushing component 6, when the operating rod 1 moves towards the first direction, the pushing component 6 rotates, the peripheral wall of the pushing component 6 drives the first sub-valve 4, the second matching part 62 is pressed against one end, matched with the second sub-valve 5, of the push rod 2, namely, the pushing component 6 drives the second sub-valve 5 through the push rod 2.
The movement of the joystick 1 in the first and second directions is described below with reference to fig. 1 and 2:
when the operating lever 1 moves in the first direction, the operating lever 1 rotates around the first axis, and the operating lever 1 can be in press fit with the first fitting portion 61 and drive the pushing member 6 to rotate. The second matching portion 62 rotates along with the pushing component 6, the second matching portion 62 is stopped against one end, where the push rod 2 is matched with the second sub-valve 5, of the push rod 2 to drive the push rod 2 to move, and the second sub-valve 5 can disconnect the air inlet 31 and the second valve port 34, so that the second parking system can realize air cut-off and further provide braking force. The lower end of the peripheral wall of the pushing member 6 can drive the first sub-valve 4 and drive the first sub-valve 4 to move, and the first sub-valve 4 can disconnect the air inlet 31 and the first valve port 33, so that the air cut-off of the first parking system can be realized. Namely, the first parking system and the second parking system jointly realize air cut-off, so that the required braking force can be provided for the vehicle.
When the operating lever 1 moves towards the second direction, the operating lever 1 rotates around the second axis, and the wedge block 11 of the operating lever 1 is pressed against one end of the push rod 2 and drives the push rod 2 to rotate. The other end of the push rod 2 can stop against the second sub-valve 5 and drive the second sub-valve 5 to move, and the second sub-valve 5 can disconnect the air inlet 31 and the second valve port 34, so that the independent air cut-off of the second parking system can be realized, and the required braking force can be provided for the trailer.
A vehicle according to an embodiment of the second aspect of the invention comprises a tractor, a trailer and a combined parking valve 100 according to the embodiment of the first aspect described above.
According to the vehicle provided by the embodiment of the invention, the tractor is provided with the first parking system, and the trailer is provided with the second parking system, so that different actions can be performed by operating the operating rod 1 of the combined parking valve 100, the air on/off states of the first parking system and the second parking system can be controlled, the parking braking force required by the vehicle can be further provided, the operation is simple, the layout of a plurality of parts is more reasonable, and the production cost is reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A combination parking valve (100), comprising:
a lever (1) and a push rod (2), the lever (1) being adapted to push the push rod (2) in a first direction or a second direction;
the parking valve comprises a valve body (3), wherein the valve body (3) is provided with an air inlet (31), a first valve port (33) and a second valve port (34), and the first valve port (33) and the second valve port (34) are respectively connected with a first parking system and a second parking system;
a first sub-valve (4) and a second sub-valve (5), the first sub-valve (4) and the second sub-valve (5) being mounted within the valve body (3); wherein the content of the first and second substances,
under normal conditions, the air inlet (31) is communicated with the first valve port (33) and the second valve port (34);
when the operating rod (1) pushes the push rod (2) to a first direction, the push rod (2) drives the first sub-valve (4) to move so as to cut off the communication between the air inlet (31) and the first valve port (33), and drives the second sub-valve (5) to move so as to cut off the communication between the air inlet (31) and the second valve port (34);
when the operating lever (1) pushes the push rod (2) towards the second direction, the push rod (2) drives the second sub-valve (5) to move so as to cut off the communication between the air inlet (31) and the second valve port (34).
2. Combined parking valve (100) according to claim 1, wherein the valve body (3) has a first cavity (35), the first cavity (35) communicating with the first valve port (33) and with the inlet port (31) through the first sub-valve (4).
3. Combined parking valve (100) according to claim 1, wherein the valve body (3) has a second chamber (36), the second chamber (36) communicating with the second valve port (34) and with the inlet port (31) through the second sub-valve (5).
4. Combined parking valve (100) according to claim 1, wherein the second sub-valve (5) is provided radially outside the first sub-valve (4).
5. Combined parking valve (100) according to any of claims 1-4, further comprising: the pushing component (6) comprises a first matching part (61) and a second matching part (62), when the operating rod (1) moves towards the first direction, the first matching part (61) is used for matching with the operating rod (1) to drive the pushing component (6) to rotate, so that the second matching part (62) pushes the push rod (2) to drive the second sub valve (5) and the pushing component (6) to drive the first sub valve (4).
6. The combined parking valve (100) according to claim 5, wherein the push member (6) is disc-shaped and pivotally mounted about a fulcrum (21), the first fitting portion (61) comprises a projection provided at one side of the push member (6), and the second fitting portion (62) comprises a projection provided at a peripheral wall of the push member (6).
7. Combined parking valve (100) according to any of claims 1-4, wherein the lever (1) is flanked by a wedge (11), the wedge (11) pushing the push rod (2) when the lever (1) is rotated in a second direction.
8. Combined parking valve (100) according to claim 7, wherein the push rod (2) is arc-shaped and the fulcrum (21) of the push rod (2) is located in the middle, one end of the push rod (2) is adapted to press the second sub-valve (5) and the other end is adapted to press the wedge block (11).
9. Combined parking valve (100) according to any of claims 1-4, further comprising: a housing to which the lever (1) is pivotably mounted about a first axis and a second axis.
10. A vehicle, characterized by comprising: a tractor having the first parking system, a trailer having the second parking system, and a combined parking valve (100) according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051777.9A CN108189827B (en) | 2018-01-19 | 2018-01-19 | Combined parking valve and vehicle with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810051777.9A CN108189827B (en) | 2018-01-19 | 2018-01-19 | Combined parking valve and vehicle with same |
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| CN108189827A CN108189827A (en) | 2018-06-22 |
| CN108189827B true CN108189827B (en) | 2021-01-08 |
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| CN201810051777.9A Active CN108189827B (en) | 2018-01-19 | 2018-01-19 | Combined parking valve and vehicle with same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758368B (en) * | 2019-09-23 | 2021-08-17 | 东风商用车有限公司 | Tractor atmospheric pressure manual control valve assembly |
| CN112277907B (en) * | 2020-11-02 | 2021-07-20 | 安徽江淮汽车集团股份有限公司 | Air-break brake operating device for driver's cab |
| CN113415263B (en) * | 2021-07-29 | 2022-02-18 | 东风商用车有限公司 | Vehicle and control hand valve assembly thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB747378A (en) * | 1954-02-02 | 1956-04-04 | Dewandre Co Ltd C | Improvements in or relating to fluid pressure control valves |
| GB1353009A (en) * | 1970-08-17 | 1974-05-15 | Bendix Westinghouse Ltd | Brake systems |
| AU6707474A (en) * | 1973-03-28 | 1975-09-25 | George Alexander Edward Storer | Fluid control valve |
| CN203592979U (en) * | 2013-12-17 | 2014-05-14 | 陕西重型汽车有限公司 | Pneumatic brake system of truck |
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