CN114030453B - Integrated valve block and brake device - Google Patents
Integrated valve block and brake device Download PDFInfo
- Publication number
- CN114030453B CN114030453B CN202210009245.5A CN202210009245A CN114030453B CN 114030453 B CN114030453 B CN 114030453B CN 202210009245 A CN202210009245 A CN 202210009245A CN 114030453 B CN114030453 B CN 114030453B
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- Prior art keywords
- oil
- oil outlet
- hydraulic pump
- channel
- interface
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/42—Arrangement or adaptation of brakes
- B64C25/44—Actuating mechanisms
Abstract
The invention provides an integrated valve block and a brake device comprising the same, wherein the integrated valve block comprises a body; the body is respectively provided with an oil inlet channel, a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and an oil return channel; an oil tank mounting interface, a hydraulic pump A oil inlet, a hydraulic pump A oil outlet, a hydraulic pump B oil inlet, a hydraulic pump B oil outlet, a control valve oil inlet, a control valve oil outlet and a control valve oil return port are respectively formed in the first end face of the body; the second end face of the body, which is far away from the first end face, is provided with at least one first piston hole; the oil tank mounting interface, the oil inlet of the hydraulic pump A and the oil inlet of the hydraulic pump B are communicated through an oil inlet channel; the oil tank mounting interface is communicated with an oil return port of the control valve through an oil return channel; an oil outlet of the hydraulic pump A is communicated with an oil inlet of the control valve through a first oil outlet channel; an oil outlet of the hydraulic pump B is communicated with an oil inlet of the control valve through a second oil outlet channel; the oil outlet of the control valve is communicated with the first piston hole through a third oil outlet channel.
Description
Technical Field
The invention relates to the technical field of brakes, in particular to an integrated valve block and a brake device.
Background
At present, a brake system of an airplane generally depends on a concentrated hydraulic source of a host machine and is conveyed to a brake actuator through a dense long pipeline, and the problems of more hydraulic parts, difficult and complex pipeline layout, heavy weight, leakage and the like exist.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present invention provides an integrated valve block and brake apparatus.
According to one aspect of the invention, an integrated valve block comprises: a body;
the body is respectively provided with an oil inlet channel, a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and an oil return channel;
the first end face of the body is respectively provided with an oil tank mounting interface, a hydraulic pump A oil inlet, a hydraulic pump A oil outlet, a hydraulic pump B oil inlet, a hydraulic pump B oil outlet, a control valve oil inlet, a control valve oil outlet and a control valve oil return port;
a second end face of the body, which is far away from the first end face, is provided with at least one first piston hole;
the oil tank mounting interface, the oil inlet of the hydraulic pump A and the oil inlet of the hydraulic pump B are communicated through an oil inlet channel;
the oil tank mounting interface is communicated with the oil return port of the control valve through the oil return channel;
the oil outlet of the hydraulic pump A is communicated with the oil inlet of the control valve through the first oil outlet channel;
the oil outlet of the hydraulic pump B is communicated with the oil inlet of the control valve through the second oil outlet channel;
the control valve oil outlet and the first piston hole are communicated through the third oil outlet channel.
According to at least one embodiment of the present invention, the body is further provided with a first redundancy check valve mounting interface and a second redundancy check valve mounting interface;
the first redundancy check valve installation interface and the second redundancy check valve installation interface are respectively located in the first oil outlet channel and the second oil outlet channel.
According to at least one embodiment of the invention, the body is further provided with a fourth oil outlet channel;
the first oil outlet channel and the second oil outlet channel are communicated with the oil inlet of the control valve through the fourth oil outlet channel;
an energy accumulator mounting interface is formed in the first end face of the body and located on the fourth oil outlet channel.
According to at least one embodiment of the invention, a boss projects from the first end face of the body;
the surface of the boss, which is far away from the first end face, is provided with the energy accumulator mounting interface;
the side surface of the boss is respectively provided with the first redundancy check valve installation interface and the second redundancy check valve installation interface;
the first redundancy check valve installation interface and the second redundancy check valve installation interface are communicated with the energy accumulator installation interface.
According to at least one embodiment of the present invention, the body is provided with an overflow oil passage communicating the fourth oil outlet passage and the oil return passage;
the side surface of the boss is also provided with an overflow valve mounting interface;
the overflow valve interface is positioned on the overflow oil channel.
According to at least one embodiment of the invention, the first end surface of the body is provided with an oil filter mounting interface;
the oil filter installation interface is positioned on the oil return channel.
According to at least one embodiment of the invention, the second end surface of the body is provided with an output shaft mounting hole of the energy taking mechanism penetrating to the first end surface of the body;
the output shaft mounting hole of the energy taking mechanism is used for being in butt joint with the hydraulic pump A.
According to at least one embodiment of the present invention, the second end surface of the body is provided with at least one second piston hole;
and a third redundancy oiling interface communicated with the second piston hole is formed on the first end surface of the body.
According to at least one embodiment of the invention, the outer peripheral surface of the body is provided with a third redundancy exhaust valve mounting interface;
and the third redundancy exhaust valve mounting interface is communicated with the second piston hole.
A brake apparatus comprising the integrated valve block of any preceding claim.
The invention has the beneficial effects that: the valve block integrates hydraulic pipelines, and hydraulic components are mounted through various interfaces, so that the valve block is in a modular design, small in size and lighter in weight, is integrally mounted near a wheel, and is provided with an independent hydraulic control oil path of a redundancy brake system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a perspective view of an integrated valve block according to an embodiment of the present invention.
Fig. 2 is a top view of the integrated valve block shown in fig. 1.
FIG. 3 is a cross-sectional view of F1-F1 of FIG. 2.
FIG. 4 is a cross-sectional view of F2-F2 of FIG. 2.
FIG. 5 is a schematic view of the integrated valve block assembled in connection with a tire according to the present invention.
Reference numerals: 1-a tire; 2-a support column; 3-body; 4-low pressure area temperature and pressure sensor mounting interface; 5-oil tank installation interface; 6-mounting an interface of an exhaust valve of the oil tank; 7-an output shaft mounting hole of the energy taking mechanism; 8-high pressure area temperature and pressure sensor mounting interface; 9-oil inlet of hydraulic pump B; 10-actuating the installation interface of the cavity temperature and pressure sensor; 11-oil filter mounting interface; 12-oil inlet of hydraulic pump A; 13-brake control valve mounting surface; 14-overflow valve mounting interface; 15-accumulator mounting interface; 16-rotation stopping key slot; 17-a first piston bore; 18-a third redundancy vent valve mounting interface; 19-valve block mounting positioning holes; 20-an oil filling valve mounting interface; 21-a second piston bore; 22-a third redundant fill port; 23-a first redundancy check valve mounting interface; 24-a second redundancy check valve mounting interface; 25-oil outlet of hydraulic pump B; 26-oil outlet of hydraulic pump A; 27-control valve oil inlet; 28-control valve oil outlet; 29-control valve oil return port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, according to a first embodiment of the present invention, there is provided an integrated valve block including: a body 3; the body 3 is respectively provided with an oil inlet channel, a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and an oil return channel; the first end face of the body 3 is respectively provided with an oil tank mounting interface 5, a hydraulic pump A oil inlet 12, a hydraulic pump A oil outlet 26, a hydraulic pump B oil inlet 9, a hydraulic pump B oil outlet 25, a control valve oil inlet 27, a control valve oil outlet 28 and a control valve oil return port 29; a second end surface of the body 3, which is far away from the first end surface, is provided with at least one first piston hole 17; the oil tank mounting interface 5, the oil inlet 12 of the hydraulic pump A and the oil inlet 9 of the hydraulic pump B are communicated through an oil inlet channel; the oil tank mounting interface 5 is communicated with the oil return port 29 of the control valve through an oil return channel; an oil outlet 26 of the hydraulic pump A is communicated with an oil inlet 27 of the control valve through a first oil outlet channel; an oil outlet 25 of the hydraulic pump B is communicated with an oil inlet 27 of the control valve through a second oil outlet channel; the control valve oil outlet 28 and the first piston bore 17 communicate through a third oil outlet passage.
The body 3 may be of cylindrical configuration; the first end face of the body 3 is mainly used for mounting an oil tank, a hydraulic pump A, a hydraulic pump B and a control valve, and the first piston hole 17 is mainly used for mounting an actuating piston. It is understood that the oil tank, the hydraulic pump a, the hydraulic pump B and the control valve can be fixed to the body 3 by welding or screwing, and when screwing is adopted, it is understood that the body 3 should be provided with corresponding threaded holes, which is well known in the art and will not be described herein.
After the oil tank, the hydraulic pump A, the hydraulic pump B, the control valve and the actuating piston are installed, the oil tank, the hydraulic pump A, the hydraulic pump B, the control valve and the first piston hole 17 are connected into a hydraulic loop through the oil inlet channel, the first oil outlet channel, the second oil outlet channel, the third oil outlet channel and the oil return channel, then hydraulic oil is pumped into the first piston hole 17 through the hydraulic pump A and/or the hydraulic pump B, the actuating piston is driven to move, and the purpose of braking is achieved.
The hydraulic pump A and the hydraulic pump B can be driven by different power sources to realize the braking function of two redundancies, for example, the hydraulic pump B can be selected from an electric pump, namely, the hydraulic pump B is directly driven by a motor; the hydraulic pump A can be driven by an energy taking mechanism to recover energy generated by rotation of the airplane wheel, and specifically, an energy taking mechanism output shaft mounting hole 7 penetrating to the first end surface of the body 3 is formed in the second end surface of the body 3; the output shaft mounting hole 7 of the energy taking mechanism is used for being in butt joint with the hydraulic pump A. That is, the output shaft of the energy taking mechanism extends into the output shaft mounting hole 7 of the energy taking mechanism and is connected with the input end of the hydraulic pump A, and the structure is the same as the connection structure of the output shaft of the motor and the input end of the hydraulic pump B, and is not repeated herein.
The body 3 can be processed in a 3D printing mode, so that the design and the manufacture with equal wall thickness are realized, and the weight is reduced.
In one embodiment, the first end surface of the body 3 is further provided with a low-pressure zone temperature and pressure sensor mounting interface 4, a high-pressure zone temperature and pressure sensor mounting interface 8 and an actuation cavity temperature and pressure sensor mounting interface 10, which are all used for mounting temperature and pressure sensors to detect the oil temperature and the oil pressure of the corresponding oil circuit.
The low-pressure area temperature and pressure sensor mounting interface 4 is communicated with an oil return channel or an oil inlet channel;
the high-pressure area temperature and pressure sensor mounting interface 8 is communicated with the first oil outlet channel and/or the second oil outlet channel;
the actuating cavity temperature and pressure sensor mounting interface 10 is communicated with the third oil outlet channel.
In one embodiment, when the fuel tank is a self-pressurization fuel tank, a fuel tank vent valve mounting interface 6 may be further provided on the first end surface of the body 3 for mounting a vent valve to vent air from the pressurization fuel tank.
In one embodiment, the body 3 is further provided with a first redundant check valve mounting interface 23 and a second redundant check valve mounting interface 24; the first redundant check valve installation interface 23 and the second redundant check valve installation interface 24 are respectively located in the first oil outlet passage and the second oil outlet passage. The first redundancy check valve installation interface 23 and the second redundancy check valve installation interface 24 are respectively connected with two check valves, so that high-pressure oil pumped by the hydraulic pump A is prevented from flowing into the hydraulic pump B, and/or high-pressure oil pumped by the hydraulic pump B flows into the hydraulic pump A.
In one embodiment, the body 3 is further provided with a fourth oil outlet channel; the first oil outlet channel and the second oil outlet channel are communicated with the control valve oil inlet 27 through a fourth oil outlet channel; an energy accumulator installation interface 15 is arranged on the first end face of the body 3, and the energy accumulator installation interface 15 is located on the fourth oil outlet channel. The energy accumulator is installed through the energy accumulator installation interface 15, energy is accumulated when the hydraulic pump A and/or the hydraulic pump B work, and the energy accumulator also has the capability of completing one-time braking when the hydraulic pump A and the hydraulic pump B do not work, so that the braking redundancy is increased.
In one embodiment, a boss projects from the first end face of the body 3; the surface of the boss, which is far away from the first end surface, is provided with an energy accumulator mounting interface 15; the side surface of the boss is respectively provided with a first redundancy check valve mounting interface 23 and a second redundancy check valve mounting interface 24; the first redundancy check valve installation interface 23 and the second redundancy check valve installation interface 24 are both communicated with the accumulator installation interface 15.
In one embodiment, a second boss protrudes from the first end surface of the body 3, and an oil inlet and an oil outlet of the hydraulic pump a are formed in the surface of the second boss departing from the first end surface; the first end surface of the body 3 between the second boss and the boss is a brake control valve mounting surface 13 for mounting the control valve, and is provided with a control valve oil inlet 27, a control valve oil outlet 28 and a control valve oil return port 29. The side of the second boss facing the boss is provided with an oil filling valve mounting interface 20 for mounting an oil filling valve for adding hydraulic oil into the hydraulic circuit.
In one embodiment, the body 3 is provided with an overflow oil passage communicating the fourth oil outlet passage and the oil return passage; the side surface of the boss is also provided with an overflow valve mounting interface 14; the overflow valve interface is positioned on the overflow oil channel. The overflow valve interface is used for connecting an overflow valve.
In one embodiment, the first end surface of the body 3 is provided with an oil filter mounting interface 11; the oil filter mounting interface 11 is located on the oil return passage. The oil filter mounting interface 11 is used for mounting an oil filter so as to filter hydraulic oil flowing into an oil tank. The oil filter mounting interface 11 is located on the surface of the second boss facing away from the first end face.
In one embodiment, the second end face of the body 3 is provided with at least one second piston hole 21; the first end surface of the body 3 is provided with a third redundant oil filling port 22 communicated with the second piston hole 21. The third redundant oil injection port 22 is used for installing a joint, is convenient for connecting an onboard oil source, further increases the braking redundancy and has higher reliability and safety.
In one embodiment, the outer peripheral surface of the body 3 is provided with a third redundant exhaust valve mounting interface 18; the third redundant exhaust valve mounting interface 18 communicates with the second piston bore 21. The third redundant exhaust valve mounting interface 18 is used to mount an exhaust valve to vent air when the actuator piston is mounted in the second piston bore 21.
The invention also provides a brake device which comprises the integrated valve block.
As shown in fig. 5, a valve block mounting positioning hole 19 is formed in the middle of the body 3, the valve block mounting positioning hole 19 is matched with the support column 2 on the machine, meanwhile, a rotation stopping key slot 16 is formed in the hole wall of the valve block mounting positioning hole 19 to limit circumferential relative movement between the integrated valve block and the support column 2, and when the integrated valve block is in operation, the tire 1 moves, and the integrated valve block and the support column 2 are kept relatively static.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are within the scope of the invention.
Claims (10)
1. An integrated valve block, comprising: a body (3);
the body (3) is respectively provided with an oil inlet channel, a first oil outlet channel, a second oil outlet channel, a third oil outlet channel and an oil return channel;
an oil tank mounting interface (5), a hydraulic pump A oil inlet (12), a hydraulic pump A oil outlet (26), a hydraulic pump B oil inlet (9), a hydraulic pump B oil outlet (25), a control valve oil inlet (27), a control valve oil outlet (28) and a control valve oil return port (29) are respectively formed in the first end face of the body (3);
a second end face of the body (3) which is far away from the first end face is provided with at least one first piston hole (17);
the oil tank mounting interface (5), the oil inlet (12) of the hydraulic pump A and the oil inlet (9) of the hydraulic pump B are communicated through an oil inlet channel;
the oil tank mounting interface (5) is communicated with the oil return port (29) of the control valve through the oil return channel;
the oil outlet (26) of the hydraulic pump A is communicated with the oil inlet (27) of the control valve through the first oil outlet channel;
the oil outlet (25) of the hydraulic pump B is communicated with the oil inlet (27) of the control valve through the second oil outlet channel;
the control valve oil outlet (28) and the first piston bore (17) are in communication through the third oil outlet passage.
2. An integrated valve block according to claim 1, wherein the body (3) is further provided with a first redundant check valve mounting interface and a second redundant check valve mounting interface;
the first redundancy check valve installation interface and the second redundancy check valve installation interface are respectively located in the first oil outlet channel and the second oil outlet channel.
3. An integrated valve block according to claim 2, characterised in that the body (3) is also provided with a fourth oil outlet channel;
the first oil outlet channel and the second oil outlet channel are communicated with the control valve oil inlet (27) through the fourth oil outlet channel;
an energy accumulator mounting interface (15) is formed in the first end face of the body (3), and the energy accumulator mounting interface (15) is located on the fourth oil outlet channel.
4. An integrated valve block according to claim 3, characterized in that the first end face of the body (3) is embossed with a boss;
the surface of the boss, which is far away from the first end face, is provided with the energy accumulator mounting interface (15);
the side surface of the boss is respectively provided with the first redundancy check valve installation interface and the second redundancy check valve installation interface;
the first redundancy check valve installation interface and the second redundancy check valve installation interface are communicated with the energy accumulator installation interface (15).
5. An integrated valve block according to claim 4, characterised in that the body (3) is provided with a spill oil channel communicating the fourth oil outlet channel and the oil return channel;
an overflow valve mounting interface (14) is also formed in the side surface of the boss;
the overflow valve interface is positioned on the overflow oil channel.
6. An integrated valve block according to claim 1, characterized in that the first end face of the body (3) is provided with an oil filter mounting interface (11);
the oil filter mounting interface (11) is positioned on the oil return channel.
7. The integrated valve block according to claim 1, wherein the second end surface of the body (3) is provided with an output shaft mounting hole (7) of the energy taking mechanism penetrating to the first end surface of the body (3);
and the output shaft mounting hole (7) of the energy taking mechanism is used for being butted with the hydraulic pump A.
8. An integrated valve block according to claim 1, characterized in that the second end face of the body (3) is provided with at least one second piston bore (21);
and a third redundancy oiling interface communicated with the second piston hole (21) is formed on the first end face of the body (3).
9. The integrated valve block according to claim 8, wherein the outer peripheral surface of the body (3) is provided with a third redundant exhaust valve mounting interface (18);
the third redundant exhaust valve mounting interface (18) is in communication with the second piston bore (21).
10. A brake apparatus comprising the integrated valve block of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210009245.5A CN114030453B (en) | 2022-01-06 | 2022-01-06 | Integrated valve block and brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210009245.5A CN114030453B (en) | 2022-01-06 | 2022-01-06 | Integrated valve block and brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114030453A CN114030453A (en) | 2022-02-11 |
| CN114030453B true CN114030453B (en) | 2022-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210009245.5A Active CN114030453B (en) | 2022-01-06 | 2022-01-06 | Integrated valve block and brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114030453B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN203477448U (en) * | 2013-06-27 | 2014-03-12 | 牛庆祥 | Three-position four-way valve and brake system with same |
| CN106428103A (en) * | 2016-10-28 | 2017-02-22 | 青岛思锐科技有限公司 | Locomotive brake independent control device |
| CN108688634A (en) * | 2017-04-11 | 2018-10-23 | 奥迪股份公司 | The method of the braking system of motor vehicle and the braking system of operation motor vehicle |
| DE102017207685A1 (en) * | 2017-05-08 | 2018-11-08 | Robert Bosch Gmbh | Method for controlling at least one solenoid valve |
| DE102018123997A1 (en) * | 2018-09-28 | 2020-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electro-pneumatic pressure control module with integrated inertial sensor |
| CN113175457A (en) * | 2021-04-30 | 2021-07-27 | 安百拓（南京）建筑矿山设备有限公司 | Mode control valve, walking power station hydraulic system and walking power station |
| CN213973953U (en) * | 2020-06-22 | 2021-08-17 | 浙江万安科技股份有限公司 | Valve system of rear axle control module and integrated rear axle brake module |
-
2022
- 2022-01-06 CN CN202210009245.5A patent/CN114030453B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN203477448U (en) * | 2013-06-27 | 2014-03-12 | 牛庆祥 | Three-position four-way valve and brake system with same |
| CN106428103A (en) * | 2016-10-28 | 2017-02-22 | 青岛思锐科技有限公司 | Locomotive brake independent control device |
| CN108688634A (en) * | 2017-04-11 | 2018-10-23 | 奥迪股份公司 | The method of the braking system of motor vehicle and the braking system of operation motor vehicle |
| DE102017207685A1 (en) * | 2017-05-08 | 2018-11-08 | Robert Bosch Gmbh | Method for controlling at least one solenoid valve |
| DE102018123997A1 (en) * | 2018-09-28 | 2020-04-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electro-pneumatic pressure control module with integrated inertial sensor |
| CN213973953U (en) * | 2020-06-22 | 2021-08-17 | 浙江万安科技股份有限公司 | Valve system of rear axle control module and integrated rear axle brake module |
| CN113175457A (en) * | 2021-04-30 | 2021-07-27 | 安百拓（南京）建筑矿山设备有限公司 | Mode control valve, walking power station hydraulic system and walking power station |
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| Publication number | Publication date |
|---|---|
| CN114030453A (en) | 2022-02-11 |
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