CN202082313U - Pneumatic power assisting device and automobile clutch system with same - Google Patents
Pneumatic power assisting device and automobile clutch system with same Download PDFInfo
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- CN202082313U CN202082313U CN2011201410109U CN201120141010U CN202082313U CN 202082313 U CN202082313 U CN 202082313U CN 2011201410109 U CN2011201410109 U CN 2011201410109U CN 201120141010 U CN201120141010 U CN 201120141010U CN 202082313 U CN202082313 U CN 202082313U
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Abstract
The utility model relates to a pneumatic power assisting device and an automobile clutch system with the same. The automobile clutch system comprises a clutch main pump and a pneumatic power booster. The pneumatic power booster is arranged on the clutch main pump and comprises a shell, a boosting piston, a first return spring, an air inlet valve and an exhaust valve. A cavity is formed in the shell, wherein a first end of a hydraulic piston extends into the cavity; the boosting piston is arranged in the cavity so as to divide the cavity into a boosting cavity and an exhaust cavity; an air inlet passage communicated with the boosting cavity is arranged in the shell; an exhaust passage is arranged in the exhaust cavity; a communicating passage communicated with the boosting cavity and the exhaust cavity is arranged in the hydraulic piston; and the boosting piston is connected with the first end of the hydraulic piston so as to push the hydraulic piston along the boosting direction. The problem that a low-power pneumatic brake clutch pedal is heavy to operate is solved. The fatigue strength of a driver is reduced. The operation comfort is improved.
Description
Technical field
The automatic clutch system that the utility model relates to a kind of air pressure assisted device and this device is installed.
Background technique
Along with the raising of user to the requirement of car load travelling comfort, low-power pneumatic brake type customer responsiveness clutch pedal is handled heavy, two kinds of assist types of the general employing of known clutch control system: the one, on clutch pedal, increase a spring mechanical power-assisted, this power-assisted mode, the power-assisted DeGrain, and during loose clutch, pedal is subjected to the spring return force function, makes operator's feel very poor.The 2nd, divide pump structure to be assemblied on the chassis air pressure assisted clutch, the brake type but low-power is died often is subjected to the restriction in space, is difficult in assembling clutch power-assisted wheel cylinder on the chassis, so can't realize air pressure assisted.And even air pressure assisted clutch wheel cylinder can be assemblied on the chassis, because the engineering truck operating environment is abominable, dust granule enters in the branch pump cavity easily, and the easy like this leakage of oil of air pressure assisted clutch wheel cylinder, the principal fault of causing frequently takes place.
The model utility content
The utility model is intended to one of solve the problems of the technologies described above at least.For this reason, a purpose of the present utility model is to propose a kind ofly to have when the operated clutch pedal, makes clutch pedal rapid operation, comfortable, prolongs the clutch air pressure assisted device in working life.
Another purpose of the present utility model is to propose a kind of automatic clutch system with above-mentioned air pressure assisted device.
To achieve these goals, the utility model first aspect provides a kind of air pressure assisted device, comprising: clutch master cylinder and air booster, be limited with hydraulic pressure cavity in the described clutch master cylinder, and in described hydraulic pressure cavity, be provided with hydraulic piston movably; Described air booster is installed on the described clutch master cylinder and comprises: housing, boosting piston, first return spring, suction valve and outlet valve; Be limited with cavity in the described housing, first end of wherein said hydraulic piston extend in the described cavity, described boosting piston is located in the described cavity so that described cavity is divided into power-assisted chamber and exhaust cavity, be provided with the gas-entered passageway and the described exhaust cavity that are communicated with described power-assisted chamber in the described housing and be provided with the exhaust passage, be provided with the communication passage that is communicated with described power-assisted chamber and described exhaust cavity in the described hydraulic piston, described boosting piston is connected to promote described hydraulic piston along the power-assisted direction with first end of described hydraulic piston; Described first return spring is located in the described exhaust cavity often to promote boosting piston along the return direction opposite with described power-assisted direction; Described suction valve is located at and is used in the described gas-entered passageway being communicated with described gas-entered passageway and described power-assisted chamber and disconnecting described gas-entered passageway and described power-assisted chamber at described boosting piston when described return direction moves when described power-assisted direction moving at described boosting piston; The end that described outlet valve is located at the contiguous described power-assisted of described communication passage chamber is used for being communicated with described exhaust cavity and described power-assisted chamber and disconnecting described exhaust cavity and described power-assisted chamber at described boosting piston when described power-assisted direction moves when described return direction moving at described boosting piston.
Air pressure assisted device according to the utility model embodiment, solved the low-power heavy problem of brake type clutch pedal operation of dying, the clutch pedal steering force reduces about 40%, guarantee that pedaling force is about 100N when starting air pressure, thereby reduce driver's fatigue strength, improve operation comfort.Air pressure assisted device can be installed in operator cabin inside, and is better with respect to being installed on the chassis working environment, can prolong the working life of air pressure clutch master cylinder like this, reduces clutch failure of pump rate, reduces service fee, reduces user's complaint.
In addition, the air pressure assisted device according to the utility model first aspect can also have following additional technical characteristics:
Described clutch master cylinder and described housing are integral.
Described suction valve is located at the end that described gas-entered passageway is connected with described power-assisted chamber.
Also be limited with holding cavity in the described housing, be provided with the valve piston in the described holding cavity, wherein said gas-entered passageway is formed in the described valve piston.
Described outlet valve is located at the end that described valve piston and described hydraulic piston are faced, and the adjacent setting with described outlet valve of described suction valve is so that described suction valve and described outlet valve touch by described hydraulic piston.
Be provided with between described valve piston and the described boosting piston and be used for along normal second return spring that promotes described valve piston of described return direction.
An end that stretches in the described cavity of described hydraulic piston is provided with cutting ferrule, and described boosting piston is set on the described cutting ferrule, and described second return spring is located between described valve piston and the described cutting ferrule.
The sidewall of described holding cavity is provided with and is used to limit the guiding step of described valve piston along described power-assisted direction displacement distance.
The outlet port of described exhaust passage is provided with the noise reduction one-way valve.
The utility model second aspect proposes a kind of automatic clutch system, comprise air pressure assisted device, described air pressure assisted device is the described air pressure assisted device of the utility model first aspect, clutch pedal, gas receiver, clutch wheel cylinder and clutch: described clutch pedal links to each other with tappet, and described tappet links to each other with air pressure assisted device; Described gas receiver is connected with the gas-entered passageway of described air pressure assisted device; Described clutch wheel cylinder is connected with described air pressure assisted device; Described clutch is connected with described clutch wheel cylinder.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the utility model embodiment's air pressure assisted system; With
Fig. 2 is the structural representation according to the utility model embodiment's automobile clutch system.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than the device or the element of indication or hint indication must have specific orientation, therefore orientation structure and operation with specific can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove that unless clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Below with reference to the air pressure assisted device of accompanying drawing description according to the utility model embodiment.
Shown in Fig. 1-2, the air pressure assisted device according to an embodiment of the present utility model comprises: clutch master cylinder 10 and air booster 20.
Particularly, be limited with hydraulic pressure cavity 11 in the clutch master cylinder 10, in hydraulic pressure cavity 11, be provided with hydraulic piston 12 movably, when the fluid motion in the hydraulic piston 12 promotion oil hydraulic cylinders 11, fluid pressurized in the clutch master cylinder 10 forms the hydraulic pressure energy, is delivered to clutch wheel cylinder 4 through connecting oil pipe 3, promote withdrawal fork 41, realize that clutch 5 separates.The detailed process of separating of clutch wheel cylinder 4 and clutch 5 for the ordinary skill in the art, can concrete condition be understood the concrete implication of above-mentioned term in the utility model.
Particularly, be limited with cavity 24 in the housing 21, wherein first end of hydraulic piston 12 (left end of hydraulic piston 12 among Fig. 1) can extend in the cavity 24, boosting piston 22 is located in the cavity 24 cavity 24 is divided into power-assisted chamber 241 and exhaust cavity 242, be provided with the gas-entered passageway 6 that is communicated with power-assisted chamber 241 in 241 housings 21 of power-assisted chamber, and exhaust cavity 242 is provided with exhaust passage 243, gas-entered passageway is suitable for being connected with high pressure gas holder 8, pressurized gas can enter in the power-assisted chamber 241 from gas-entered passageway 6, and the exhaust passage is suitable for the unnecessary gas in the exhaust cavity 242 is discharged.
Be provided with the communication passage 7 that is communicated with power-assisted chamber 241 and exhaust cavity 242 in the hydraulic piston 12, when clutch pedal 81 not being applied power, communication passage 7 is in open mode, and power-assisted chamber 241 is communicated with exhaust cavity 242.Hydraulic piston 12 is connected with first end of exhaust pition 22 in going deep into cavity 24 with along power-assisted direction (directions X shown in Figure 1) promotion hydraulic piston 12, so that make clutch 5 be in separated state when clutch pedal 81 is operated.
The end (left end of communication passage 7 among Fig. 1) that outlet valve 71 is located at communication passage 7 contiguous power-assisted chambeies is used for being communicated with exhaust cavity 242 and power-assisted chamber 241 and disconnection exhaust cavity 242 and power-assisted chamber 241 when boosting piston 22 is mobile along power-assisted direction (directions X among Fig. 1) when boosting piston 22 is mobile along return direction (Fig. 1 Y direction).
Need to prove, drive hydraulic piston 12 when power-assisted direction (directions X in as Fig. 1) is moved along power-assisted direction move (directions X in as Fig. 1) at boosting piston 22.At this moment, the fluid pressurized in the clutch master cylinder 10 forms the hydraulic pressure energy, is delivered to clutch wheel cylinder 4 through connecting oil pipe 3, promotes withdrawal fork 41, realizes that clutch 5 separates.
Air pressure assisted device according to the utility model embodiment, solved the heavy problem of low-power pneumatic brake type clutch pedal operation, the clutch pedal steering force reduces about 40%, guarantees that pedaling force is about 100N when starting air pressure, thereby reduce driver's fatigue strength, improve operation comfort.Air pressure assisted device can be installed in operator cabin inside, and is better with respect to being installed on the chassis working environment, can prolong the working life of air pressure clutch master cylinder 10 like this, reduces clutch failure of pump rate, reduces service fee, reduces user's complaint.
Referring to shown in Figure 1, according to embodiments more of the present utility model, process and improve the soundness of whole air pressure assisted device for convenience, clutch master cylinder 10 can be integral with air booster 20.
Referring to shown in Figure 1, in a concrete example of the present utility model, suction valve 62 is located at the end that gas-entered passageway 6 is connected with described power-assisted chamber 241.Such structure makes things convenient for the installation of suction valve 62 and finishing of on-off action.
Referring to shown in Figure 1, according to embodiments more of the present utility model, also be limited with holding cavity 90 in the housing 21, be provided with valve piston 91 in the holding cavity 90, wherein gas-entered passageway 6 is formed in the valve piston 91.A nearlyer step ground, outlet valve 71 are located at the end that valve piston 91 and hydraulic piston 12 are faced, suction valve 62 with outlet valve 71 adjacent settings so that suction valve 62 touches by hydraulic piston 12 with outlet valve 71.
The suction port 61 of gas-entered passageway 6 is suitable for being connected with gas receiver 8 and the outlet of gas-entered passageway is provided with suction valve 62, is provided with second return spring 25 that is used for often promoting along return direction (Fig. 1 Y direction) the valve piston between valve piston 91 and the boosting piston 22.When air pressure assisted device was not worked, second return spring 25 promoted suction valve 62, makes suction valve 62 be in closed condition.When air pressure assisted device work, second return spring 25 is compressed, and at this moment air valve 62 is opened, and high pressure just can enter into power-assisted chamber 241.
Be provided with for convenience, an end that stretches in the cavity 21 of hydraulic piston 12 is provided with cutting ferrule 13, and boosting piston cover 22 is located on the described cutting ferrule 13, and second return spring 25 is located between valve piston 91 and the cutting ferrule 13.
Referring to shown in Figure 1, according to an example of the present utility model, the sidewall of holding cavity 90 is provided with and is used for limiting the guiding step 93 of valve piston 91 along power-assisted direction (Fig. 1 directions X) displacement distance.When air pressure assisted partial failure, valve piston 91 is leaned on the guiding step 93, can promote valve piston 91, boosting piston 22 and hydraulic piston 12 by pushes pedals like this and move, can lean on driver's manpower to realize that clutch separates to power-assisted direction (directions X among Fig. 1).
Shown in figure, according to an embodiment of the present utility model, the noise when reducing air pressure assisted device busy, 243 places can be provided with noise reduction one-way valve 99 in first exhaust passage.
Automatic clutch system according to the utility model embodiment is described below.
Automatic clutch system according to embodiment of the present utility model comprises: air pressure assisted device, clutch pedal 81, gas receiver 8, clutch wheel cylinder 4 and clutch 5.
Particularly, air pressure assisted device can be the air pressure assisted device of reference the foregoing description description.Clutch pedal 81 links to each other with tappet 82, and tappet 82 links to each other with air pressure assisted device; Gas receiver 8 is connected with the gas-entered passageway 6 of air pressure assisted device; Clutch wheel cylinder 4 is connected with clutch master cylinder 10; Clutch 5 is connected with clutch wheel cylinder 4.
Below the simple use of describing according to the utility model embodiment's automatic clutch system.
Shown in Fig. 1-2, when handling clutch pedal 81, promote tappet 82 and move to power-assisted direction (directions X among Fig. 1), open the gas-entered passageway 6 in power-assisted chamber 241, pressurized air enters the power-assisted chamber 241 from gas receiver 8, promoting boosting piston 22 and hydraulic piston 12 moves to the power-assisted direction together, fluid pressurized in the clutch master cylinder 10 forms the hydraulic pressure energy, is delivered to clutch wheel cylinder 4 through connecting oil pipe 3, promote withdrawal fork 41, realize that clutch 5 separates.
Because clutch pedal 81, tappet 82, oil storage cup 8, clutch master cylinder 10, clutch 5, withdrawal fork 41, first return spring 23 and clutch wheel cylinder 4 all belong to prior art, just seldom do introduction at this.
Referring to shown in Figure 1, when clutch master cylinder 10 was not worked, suction valve 62 cut out under the effect of second return spring 25, and outlet valve 71 is opened.
During 10 work of clutch master cylinder, under the effect of clutch pedal 81, tappet 82 promotes valve piston 91 and moves to power-assisted direction (directions X among Fig. 1), overcome the active force of first return spring 23, move certain stroke to the power-assisted direction, close outlet valve 71, suction valve 62 is backed down, and pressurized air enters power-assisted chamber 241, pressurized air promote boosting piston 22 to the power-assisted direction move realize air pressure assisted, under tappet power and pressurized air active force, boosting piston 22 and hydraulic piston 12 move to first direction together, and exhaust cavity 242 volumes reduce, and unnecessary gas is discharged by exhaust passage 243, close master cylinder compensate opening (not shown) after continuing to move with hydraulic piston 12, fluid pressurized in the clutch master cylinder 10 forms the hydraulic pressure energy, is delivered to clutch wheel cylinder 4 through connecting oil pipe 3, promote withdrawal fork 41, realize that clutch 5 separates.
When pine is lifted away from when closing pedal 81, move (Y direction among Fig. 1) with tappet 82 along the return direction, valve piston 91 is under the effect of second return spring 25, close suction valve 62, open outlet valve 71, part pressurized air enters atmosphere by communication passage 7 exhaust passages 243, boosting piston 22 and hydraulic piston 12 move to return direction (Y direction among Fig. 1) under the effect of first return spring 23 and hydraulic coupling, with tappet 82 return slowly, outlet valve 71 is opened fully, pressurized air is discharged, and boosting piston 22 returns are realized the clutch combination.
During air pressure assisted partial failure, tappet 82 pushes away valve piston 91 to power-assisted direction (directions X among Fig. 1) and leans on the guiding step 93, tappet 82 promotes valve piston 91, boosting piston 22 and hydraulic piston 128 simultaneously and moves along power-assisted direction (directions X among Fig. 1) together, can lean on driver's manpower to realize that clutch separates.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiments under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. an air pressure assisted device is characterized in that, comprising:
The clutch master cylinder is limited with hydraulic pressure cavity in the described clutch master cylinder, is provided with hydraulic piston in described hydraulic pressure cavity movably; With
Air booster, described air booster are installed on the described clutch master cylinder and comprise:
Housing is limited with cavity in the described housing, and first end of wherein said hydraulic piston extend in the described cavity,
Boosting piston, described boosting piston is located in the described cavity so that described cavity is divided into power-assisted chamber and exhaust cavity, be provided with the gas-entered passageway and the described exhaust cavity that are communicated with described power-assisted chamber in the described housing and be provided with the exhaust passage, be provided with the communication passage that is communicated with described power-assisted chamber and described exhaust cavity in the described hydraulic piston, described boosting piston is connected to promote described hydraulic piston along the power-assisted direction with first end of described hydraulic piston;
First return spring, described first return spring are located in the described exhaust cavity often to promote boosting piston along the return direction opposite with described power-assisted direction;
Suction valve, described suction valve are located at and are used in the described gas-entered passageway being communicated with described gas-entered passageway and described power-assisted chamber and disconnecting described gas-entered passageway and described power-assisted chamber at described boosting piston when described return direction moves when described power-assisted direction moving at described boosting piston; With
The end that outlet valve, described outlet valve are located at the contiguous described power-assisted of described communication passage chamber is used for being communicated with described exhaust cavity and described power-assisted chamber and disconnecting described exhaust cavity and described power-assisted chamber at described boosting piston when described power-assisted direction moves when described return direction moving at described boosting piston.
2. air pressure assisted device according to claim 1 is characterized in that, described clutch master cylinder and described housing are integral.
3. air pressure assisted device according to claim 2 is characterized in that, described suction valve is located at the end that described gas-entered passageway is connected with described power-assisted chamber.
4. air pressure assisted device according to claim 3 is characterized in that, also is limited with holding cavity in the described housing, is provided with the valve piston in the described holding cavity, and wherein said gas-entered passageway is formed in the described valve piston.
5. air pressure assisted device according to claim 4, it is characterized in that, described outlet valve is located at the end that described valve piston and described hydraulic piston are faced, and the adjacent setting with described outlet valve of described suction valve is so that described suction valve and described outlet valve touch by described hydraulic piston.
6. air pressure assisted device according to claim 4 is characterized in that, is provided with between described valve piston and the described boosting piston to be used for along normal second return spring that promotes described valve piston of described return direction.
7. air pressure assisted device according to claim 6, it is characterized in that, an end that stretches in the described cavity of described hydraulic piston is provided with cutting ferrule, and described boosting piston is set on the described cutting ferrule, and described second return spring is located between described valve piston and the described cutting ferrule.
8. air pressure assisted device according to claim 4 is characterized in that, the sidewall of described holding cavity is provided with and is used to limit the guiding step of described valve piston along described power-assisted direction displacement distance.
9. air pressure assisted device according to claim 1 is characterized in that the outlet port of described exhaust passage is provided with the noise reduction one-way valve.
10. an automatic clutch system is characterized in that, comprising:
Air pressure assisted device, described air pressure assisted device are according to each described air pressure assisted device among the claim 1-9;
Clutch pedal, described clutch pedal links to each other with tappet, and described tappet links to each other with air pressure assisted device;
Gas receiver, described gas receiver is connected with the gas-entered passageway of described air pressure assisted device;
The clutch wheel cylinder, described clutch wheel cylinder is connected with described air pressure assisted device; With
Clutch, described clutch is connected with described clutch wheel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201410109U CN202082313U (en) | 2011-05-05 | 2011-05-05 | Pneumatic power assisting device and automobile clutch system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201410109U CN202082313U (en) | 2011-05-05 | 2011-05-05 | Pneumatic power assisting device and automobile clutch system with same |
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| Publication Number | Publication Date |
|---|---|
| CN202082313U true CN202082313U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201410109U Expired - Lifetime CN202082313U (en) | 2011-05-05 | 2011-05-05 | Pneumatic power assisting device and automobile clutch system with same |
Country Status (1)
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|---|---|
| CN (1) | CN202082313U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148122A (en) * | 2013-03-14 | 2013-06-12 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly equipped with clutch master pump |
| CN105257730A (en) * | 2015-11-16 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Clutch booster pump |
| CN104842788B (en) * | 2014-12-16 | 2017-04-05 | 北汽福田汽车股份有限公司 | Spring assist device, clutch pedal assembly and vehicle |
| RU2621222C2 (en) * | 2015-03-16 | 2017-06-01 | Частное акционерное общество "Волчанский агрегатный завод" | Pneumohydraulic amplifier of vehicle clutch linkage |
| CN107120363A (en) * | 2017-07-03 | 2017-09-01 | 福建万润新能源科技有限公司 | A kind of clutch sub-controlling unit of oil-electric vehicle |
| CN107901898A (en) * | 2017-11-07 | 2018-04-13 | 中国第汽车股份有限公司 | Air booster assembly based on feedback dish structure |
| RU179723U1 (en) * | 2017-12-20 | 2018-05-23 | Общество с ограниченной ответственностью "Ар Си Эр" | PNEUMATIC HYDRAULIC AMPLIFIER OF CLUTCH ACTUATOR |
| CN111963586A (en) * | 2020-08-31 | 2020-11-20 | 湖南行必达网联科技有限公司 | Power assisting device, vehicle clutch system and vehicle |
| CN112455225A (en) * | 2020-12-04 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Hydraulic control gas valve and automobile brake control system |
| CN113153933A (en) * | 2021-04-14 | 2021-07-23 | 山东悍沃农业装备有限公司 | Hydraulic clutch power assisting device of tractor |
-
2011
- 2011-05-05 CN CN2011201410109U patent/CN202082313U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148122A (en) * | 2013-03-14 | 2013-06-12 | 瑞立集团瑞安汽车零部件有限公司 | Clutch master pump and clutch assembly equipped with clutch master pump |
| CN104842788B (en) * | 2014-12-16 | 2017-04-05 | 北汽福田汽车股份有限公司 | Spring assist device, clutch pedal assembly and vehicle |
| RU2621222C2 (en) * | 2015-03-16 | 2017-06-01 | Частное акционерное общество "Волчанский агрегатный завод" | Pneumohydraulic amplifier of vehicle clutch linkage |
| CN105257730A (en) * | 2015-11-16 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Clutch booster pump |
| CN105257730B (en) * | 2015-11-16 | 2018-05-04 | 安徽江淮汽车集团股份有限公司 | A kind of clutch power-assisted pump |
| CN107120363A (en) * | 2017-07-03 | 2017-09-01 | 福建万润新能源科技有限公司 | A kind of clutch sub-controlling unit of oil-electric vehicle |
| CN107901898A (en) * | 2017-11-07 | 2018-04-13 | 中国第汽车股份有限公司 | Air booster assembly based on feedback dish structure |
| CN107901898B (en) * | 2017-11-07 | 2024-06-04 | 中国第一汽车股份有限公司 | Pneumatic booster assembly based on feedback disc structure |
| RU179723U1 (en) * | 2017-12-20 | 2018-05-23 | Общество с ограниченной ответственностью "Ар Си Эр" | PNEUMATIC HYDRAULIC AMPLIFIER OF CLUTCH ACTUATOR |
| CN111963586A (en) * | 2020-08-31 | 2020-11-20 | 湖南行必达网联科技有限公司 | Power assisting device, vehicle clutch system and vehicle |
| CN112455225A (en) * | 2020-12-04 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Hydraulic control gas valve and automobile brake control system |
| CN113153933A (en) * | 2021-04-14 | 2021-07-23 | 山东悍沃农业装备有限公司 | Hydraulic clutch power assisting device of tractor |
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| CX01 | Expiry of patent term |