CN101713439B - Improved multifunctional clutch booster - Google Patents
Improved multifunctional clutch booster Download PDFInfo
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- CN101713439B CN101713439B CN 200910265463 CN200910265463A CN101713439B CN 101713439 B CN101713439 B CN 101713439B CN 200910265463 CN200910265463 CN 200910265463 CN 200910265463 A CN200910265463 A CN 200910265463A CN 101713439 B CN101713439 B CN 101713439B
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Abstract
The invention relates to a multifunctional clutch booster, in particular to an improved multifunctional clutch booster which comprises a boosting part, an air passage cavity part, a guide part, a control part and a valve body, wherein the boosting part comprises a boosting cylinder body, a boosting push rod, a boosting piston, an ejector rod seat and a piston rod; the control part comprises an air inlet valve, an exhaust valve, a hydraulic piston, a control piston, a bi-pass single valve and an electromagnetic valve; the air passage cavity part comprises a breathing passageway and a volume change cavity; and the volume change cavity is formed at least through the piston rod, the guide part and the hydraulic piston. Compared with the prior art, the piston rod and the hydraulic piston are completely separated, and a negative pressure air cavity and an atmosphere port are directly or indirectly communicated through the breathing passageway, thereby thoroughly eliminating follow-up phenomena of the hydraulic piston, prolonging the service life of the hydraulic piston and improving the sensitivity of electric-controlled operations. Moreover, through increasing the number of wear rings and sealing rings, the work of the booster is more reliable.
Description
Technical field
The present invention relates to a kind of multifunctional clutch booster, particularly a kind of improved multifunctional clutch booster is particularly useful for passenger traffic or goods stock.
Background technique
Clutch is the important component part in the internal-combustion engines vehicle transmission system.In order to alleviate the working strength of driver when operating, the booster of clutch has obtained using very widely.Along with the development of technology, existing clutch booster mainly is divided into three kinds of the formula of surging, electrodynamic type and pneumatic types.Wherein, advantages such as pneumatic type is low with its cost, environmental protection have obtained increasing application, and particularly because can be by the high-pressure air source of the air braking system of passenger vehicle or lorry, its application prospect be very wide.
Number of patent application CN 200910130892.6 discloses a kind of debugging-free multifunctional clutch booster.This booster has increased an electric control operating mechanism in parallel on the basis of hydraulic control mechanism, be intended to realize the diversity of vehicle in gearshift procedure; This booster also comprises boosting piston, hydraulic piston and position-limited lever; Boosting piston and hydraulic piston are split-type structural; Boosting piston is fixedly connected with position-limited lever, and position-limited lever places the inner chamber of hydraulic piston, when using electric control operating mechanism control; Boosting piston drives that position-limited lever moves in the certain limit of hydraulic piston inner chamber and hydraulic piston is motionless, protects the clutch fluid pressing system to greatest extent; This booster adopts angular displacement sensor effectively to judge the separation and the jointing state of clutch, when clutch abrasion sends alarm signal during to the precalculated position.Yet, in practical application, find, can produce negative pressure when in the inner chamber of hydraulic piston, moving owing to position-limited lever, tend to cause the phenomenon of hydraulic piston servo-actuated in position-limited lever, both caused unnecessary wearing and tearing, the sensitivity when having reduced electric control operation again like this; In addition, anti-wear component and sealing are limited owing to reciprocating part in the booster is more, and have much room for improvement the working life of this clutch booster.
Summary of the invention
The object of the present invention is to provide a kind of improved multifunctional clutch booster, it has overcome existing multifunctional clutch booster and has produced the hydraulic piston servo-actuated phenomenon that negative pressure causes because of the position-limited lever motion; And realize the further prolongation in its working life through increasing seal element and anti-wear component quantity.
The object of the invention is realized through following technological scheme: a kind of improved multifunctional clutch booster is provided, and it comprises power-assisted part, air flue cavity part, targeting part, control section and valve body.Said power-assisted partly comprises power-assisted cylinder body, power-assisted push rod, boosting piston, tip-lever support and piston rod.Said control section comprises air intake valve, drain tap, hydraulic piston, control piston, bilateral single valve and solenoid valve.One end of said tip-lever support contacts with the power-assisted push rod, and the other end is connected with piston rod.Said boosting piston through tip-lever support indirectly and piston rod link together.Be provided with targeting part between said power-assisted cylinder body and the valve body, and targeting part be fixed in the valve body through the power-assisted cylinder body.Piston rod gets into valve body through targeting part.Said control section places within the air flue cavity part.Said air flue cavity partly comprises respiration channel and variable volume chamber.Said variable volume chamber forms through piston rod, targeting part and hydraulic piston at least.Said respiration channel is directly or indirectly with said variable volume chamber and atmosphere.
Preferably, said targeting part comprises at least one sleeve, at least one wear ring and at least one seal ring, and said wear ring and seal ring place in the sleeve lining annular groove, help avoiding the valve body that weares and teares like this, convenient for maintaining; A kind of replacement scheme is to comprise at least one guide holder, at least one wear ring and at least one seal ring, and said wear ring and seal ring place in the guide holder inwall annular groove, and its advantage is that assembly technology is simple.In most preferred embodiment of the present invention, said targeting part comprises a sleeve, a wear ring and an O-ring seals, and said wear ring and seal ring place in the sleeve lining annular groove.
Preferably, said hydraulic piston does not have inner-cavity structure.Because targeting part can define the piston rod movement direction, need not again the piston rod movement direction to be carried out the secondary qualification with the inner-cavity structure of hydraulic piston.
Preferably, said hydraulic piston places in the sleeve, so that the engage sleeves barrel structure; A kind of replacement scheme is that hydraulic piston directly places the inner chamber of valve body, so that cooperate the guide holder structure.
Preferably, leave vent in the middle of said tip-lever support and the piston rod respectively and form respiration channel, the variable volume chamber communicates with the boosting piston ante-chamber through respiration channel, and the boosting piston ante-chamber is communicated with atmospheric air port through second channel again simultaneously.This is designed for the respiratory ventilation that realization has the clutch booster of sleeve.A kind of replacement scheme is in valve body, directly to be provided with respiration channel, and the variable volume chamber is communicated with atmospheric air port.This is designed for the respiratory ventilation that realization has the clutch booster of guide holder.
Preferably, said boosting piston comprises at least one wear ring, and said wear ring places in the boosting piston sidewall annular groove, so that reduce the wearing and tearing that boosting piston causes along the power-assisted movement of cylinder block.In most preferred embodiment of the present invention, said boosting piston comprises two wear rings.
Preferably, said valve body has a bleed screw and air flue thereof, and the bleed screw hole places the end near the power-assisted cylinder body of valve body; A kind of replacement scheme is that said valve body has a bleed screw and air flue thereof, and the bleed screw hole places the end away from the power-assisted cylinder body of valve body.Position through variation design bleed screw and air flue thereof makes this booster be applicable to the more chassis of multi-vehicle-type.
Preferably, said hydraulic piston has at least one wear ring and at least one seal ring, and said wear ring, seal ring place in the hydraulic piston sidewall annular groove, so that prevent the fluid seepage in the oil pocket.In most preferred embodiment of the present invention, a wear ring is respectively established at said hydraulic piston two ends, and has an O-ring seals and a y-shaped ring to place between said two wear rings, and its advantage is for increasing the functional reliability of hydraulic piston.
Improved multifunctional clutch booster of the present invention has compared with prior art thoroughly been eliminated the servo-actuated phenomenon of hydraulic piston, and hydraulic piston prolongs working life, and the sensitivity during electric control operation improves; In addition, through increasing seal element and anti-wear component quantity, further prolonged the whole service life of this booster, it is more reliable to work.
Description of drawings
In order to make the present invention be convenient to understand, combine accompanying drawing to describe embodiments of the invention now.
Fig. 1 is the sectional view of the most preferred embodiment of modified model multifunctional clutch booster of the present invention.For brevity, said sectional view does not illustrate solenoid valve and associated cavity air flue thereof.
Fig. 2 is the partial enlarged drawing of hydraulic piston embodiment illustrated in fig. 1.
Fig. 3 is another embodiment's of an improved multifunctional clutch booster of the present invention sectional view.For brevity, said sectional view does not illustrate solenoid valve and associated cavity air flue thereof.
Reference character: 1. power-assisted push rod, 2. tip-lever support, 3. boosting piston, 4. power-assisted cylinder body, 5. piston rod, 6. wear ring, 7. targeting part; 8. hydraulic piston, 9. bleed screw and passage thereof, 10. valve body, 11. main hydraulic fluid ports, 12. control pistons, 13. bilateral one-way valves; 14. drain tap, 15. air intake valves, 16. high pressure admission mouths, 17. electronic control delivery outlets, 18.O shape seal ring, 19.Y shape seal ring; 20. atmospheric air port, A. boosting piston ante-chamber, B. boosting piston back cavity, C. second air cavity, D. variable volume chamber, E. second oil pocket; F. first oil pocket, G. first air cavity, a. respiration channel, b. second channel, c. third channel, d. four-way
Embodiment
Accompanying drawing shows improved multifunctional clutch booster of the present invention.Below in conjunction with accompanying drawing the present invention is done detailed description.The word in the description orientation that is adopted among this paper " on ", D score, " left side ", " right side " etc. all be for the convenience explained based on the orientation shown in the drawing in the accompanying drawing, these orientation maybe be because the disposing way of device and different in actual device.
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, most preferred embodiment of the present invention is carried out structure describe.
As scheme saidly, and an end of said tip-lever support 2 contacts with power-assisted push rod 1, and the other end is connected with piston rod 5.Said boosting piston 3 through tip-lever support 2 indirectly and piston rod 5 link together, and can be along the inwall to-and-fro motion of power-assisted cylinder body 4.Be provided with targeting part 7 between said power-assisted cylinder body 4 and the valve body 10.Targeting part 7 is fixed in the valve body 10 through power-assisted cylinder body 4.Piston rod 5 is got in the valve body 10 by targeting part 7.Piston rod 5 right sides can contact with hydraulic piston 8.Targeting part 7 stretches into the first oil pocket F, and hydraulic piston 8 places in the targeting part 7.The first oil pocket F communicates with bleed screw and passage 9, main hydraulic fluid port 11 and the second oil pocket E respectively.Main hydraulic fluid port 11 oil-feeds or oil extraction meeting cause that hydraulic piston 8 and control piston 12 move to the left or to the right.Bleed screw and passage 9 thereof are positioned near power-assisted cylinder body one side, and are connected with the first oil pocket F.Piston rod 5, targeting part 7 constitute variable volume chamber D with hydraulic piston 8.Variable volume chamber D communicates with boosting piston ante-chamber A with piston rod 5 interior respiratory airway a through placing in the tip-lever support 2, and boosting piston ante-chamber A is connected with atmospheric air port 20 through the second air flue b again.Boosting piston back cavity B is connected with the 4th air flue d.The 3rd air flue c is connected with the solenoid valve (not shown) of booster opposite side through electronic control delivery outlet 17.Bilateral one-way valve 13 connects the 4th air flue d respectively, the 3rd air flue c and the second air cavity C.The break-make that the second air cavity C is connected with atmospheric air port 20 by control piston 12 controls.The first air cavity G communicates with high pressure admission mouth 16, and its break-make that is connected with the second air cavity C is also by control piston 12 determining positions.Control piston 12 is to moving to left, and exhaust valve 14 cuts out, and intake valve 15 is opened.Control piston moves to right, and exhaust valve 14 is opened, and intake valve 15 is closed.A wear ring is respectively established at said hydraulic piston sidewall two ends, and has an O-ring seals and a y-shaped ring to place between said two wear rings.
Below in conjunction with accompanying drawing 2 and accompanying drawing 3, another embodiment of the present invention is carried out structure describe.
As scheme saidly, and an end of said tip-lever support 2 contacts with power-assisted push rod 1, and the other end is connected with piston rod 5.Said boosting piston 3 through tip-lever support 2 indirectly and piston rod 5 link together, and can be along the inwall to-and-fro motion of power-assisted cylinder body 4.Be provided with targeting part 7 between said power-assisted cylinder body 4 and the valve body 10.Targeting part 7 is fixed in the valve body 10 through power-assisted cylinder body 4.Piston rod 5 is got in the valve body 10 by targeting part 7.Piston rod 5 right sides can contact with hydraulic piston 8.Hydraulic piston 8 places the first oil pocket F in the valve body 10.The first oil pocket F communicates with bleed screw and passage 9, main hydraulic fluid port 11 and the second oil pocket E respectively.Main hydraulic fluid port 11 oil-feeds or oil extraction meeting cause that hydraulic piston 8 and control piston 12 move to the left or to the right.Bleed screw and passage 9 thereof are positioned at away from power-assisted cylinder body one side, and are connected with the first oil pocket F.Piston rod 5, targeting part 7, valve body 10 constitute variable volume chamber D with hydraulic piston 8.Variable volume chamber D directly communicates with atmospheric air port 20 through placing the respiratory airway a in the valve body 10.Boosting piston ante-chamber A is connected with atmospheric air port 20 through the second air flue b.Boosting piston back cavity B is connected with the 4th air flue d.The 3rd air flue c is connected with the solenoid valve (not shown) of booster opposite side through electronic control delivery outlet 17.Bilateral one-way valve 13 connects the 4th air flue d respectively, the 3rd air flue c and the second air cavity C.The break-make that the second air cavity C is connected with atmospheric air port 20 by control piston 12 controls.The first air cavity G communicates with high pressure admission mouth 16, and its break-make that is connected with the second air cavity C is also by control piston 12 determining positions.Control piston 12 is to moving to left, and exhaust valve 14 cuts out, and intake valve 15 is opened.Control piston moves to right, and exhaust valve 14 is opened, and intake valve 15 is closed.A wear ring is respectively established at said hydraulic piston sidewall two ends, and has an O-ring seals and a y-shaped ring to place between said two wear rings.
Illustrate the working procedure of most preferred embodiment shown in the accompanying drawing 1 below.
When adopting electronic control; From the pressurized air of electronic control delivery outlet 17 through third channel c; Push bilateral one-way valve 13 to right-hand member; Get into boosting piston back cavity B through four-way d again, boosting piston 3 drives power-assisted push rod 1 and is moved to the left under the gas pressure of boosting piston back cavity B, make clutch separation.In this process; Boosting piston 3 drives piston rod 5 together to moving to left, and at this moment, the air in the atmosphere is successively through atmospheric air port 20, second channel b, boosting piston ante-chamber A; Respiration channel a gets into variable volume chamber D, in the D of variable volume chamber, does not produce vacuum when piston rod is moved.Like this, to remain on original position constant for hydraulic piston 8.When clutches engaged, the pressurized air of boosting piston back cavity B is arranged to atmosphere from the solenoid valve (not shown) through four-way d, third channel c, electronic control delivery outlet 17 successively.Simultaneously; Power-assisted push rod 1, boosting piston 3 are owing to move right under the effect of clutch retraction springs; Drive piston rod 5 and move right together, will be behind the air pressurized of variable volume chamber D through respiration channel a, boosting piston ante-chamber A, second channel b, atmospheric air port 20 rows to atmosphere.Piston rod moves to initial position.Like this, not receive external pressure to remain on original position constant because of hydraulic piston 8, thus, can in whole electronically controlled process, keep hydraulic control series to be failure to actuate all the time.
When needs adopt conventional hydraulic control; Because of position between hydraulic piston 8 and the piston rod 5 remains unchanged; When stepping on clutch pedal, the action of hydraulic force of coming autonomous hydraulic fluid port 11 on the one hand is on hydraulic piston 8 like this, and drive piston rod 5, boosting piston 3, power-assisted push rod 1 are moved to the left; On the other hand; Come the hydraulic coupling of autonomous hydraulic fluid port 11 to act on the control piston 12 through the second oil suction chamber E; Promotion control piston 12 is moved to the left opens air intake valve 15, and the pressurized air warp first air cavity G, the air intake valve 15 arrival second air cavity C from high pressure admission mouth 16 are pushed into left end with bilateral one-way valve 13; The pressurized air of the second air cavity C arrives boosting piston back cavity B through four-way d; Act on the boosting piston 3, power-assisted push rod 1 is moved to the left under the acting in conjunction of hydraulic coupling and atmospheric pressure, makes clutch separation.Work as release the clutch pedal; During clutches engaged; The hydraulic coupling of main hydraulic fluid port 11 descends, and control piston 12 moves right under the effect of its return spring, closes intake valve 15; Open exhaust valve 14, the pressurized air of boosting piston back cavity B is arranged to atmosphere through four-way d, the second air cavity C, atmospheric air port 20 successively.Piston rod 5 is with hydraulic piston 8 initial position that under the effect of clutch retraction springs, moves right.When conventional hydraulic was controlled, the air of variable volume chamber D was also accomplished breathing through respiration channel a, boosting piston ante-chamber A, second channel b, atmospheric air port 20.
More than combine the preferred embodiments of the present invention to describe in detail; But this is not to be limitation of the present invention; Every foundation technical spirit of the present invention is to any simple modification that above embodiment did, and equivalent variations and modification all still belong to the scope of technological scheme of the present invention.
Claims (24)
1. improved multifunctional clutch booster; It comprises power-assisted part, air flue cavity part, targeting part (7), control section and valve body (10); Said power-assisted partly comprises power-assisted cylinder body (4), power-assisted push rod (1), boosting piston (3), tip-lever support (2) and piston rod (5); Said control section comprises air intake valve (15), drain tap (14), hydraulic piston (8), control piston (12), bilateral one-way valve (13) and solenoid valve; Said boosting piston (3) through tip-lever support (2) indirectly and piston rod (5) link together; Be provided with targeting part (7) between said power-assisted cylinder body (4) and the valve body (10); And through power-assisted cylinder body (4) targeting part (7) is fixed in the valve body (10), piston rod (5) gets into valve body (10) through targeting part (7), and it is characterized in that: said air flue cavity partly comprises respiration channel (a) and variable volume chamber (D); Said variable volume chamber (D) is made up of with hydraulic piston (8) piston rod (5), targeting part (7) at least; Said respiration channel (a) is directly or indirectly with said variable volume chamber (D) and atmosphere.
2. improved multifunctional clutch booster as claimed in claim 1; It is characterized in that: said tip-lever support (2) forms respiration channel (a) with the middle vent that leaves respectively of piston rod (5); Variable volume chamber (D) communicates with boosting piston ante-chamber (A) through respiration channel (a), and boosting piston ante-chamber (A) is communicated with atmospheric air port (20) through second channel (b) again simultaneously.
3. improved multifunctional clutch booster as claimed in claim 1 is characterized in that: directly be provided with respiration channel (a) in the said valve body (10), variable volume chamber (D) communicated with atmospheric air port (20).
4. improved multifunctional clutch booster as claimed in claim 2; It is characterized in that: said targeting part (7) comprises at least one sleeve, at least one wear ring (6) and at least one seal ring, and said wear ring (6) and seal ring place in the inwall annular groove of sleeve.
5. improved multifunctional clutch booster as claimed in claim 3; It is characterized in that: said targeting part (7) comprises at least one guide holder, at least one wear ring (6) and at least one seal ring, and said wear ring (6) and seal ring place in the guide holder inwall annular groove.
6. improved multifunctional clutch booster as claimed in claim 4 is characterized in that: said hydraulic piston (8) places in the sleeve.
7. improved multifunctional clutch booster as claimed in claim 5 is characterized in that: said hydraulic piston (8) directly places the inner chamber of valve body (10).
8. improved multifunctional clutch booster as claimed in claim 1 is characterized in that: said boosting piston (3) comprises at least one boosting piston wear ring (6), and said boosting piston wear ring (6) places in boosting piston (3) the sidewall annular groove.
9. improved multifunctional clutch booster as claimed in claim 8; It is characterized in that: said hydraulic piston (8) has at least one hydraulic piston wear ring (6); At least one hydraulic piston seal circle, and said hydraulic piston wear ring (6) and hydraulic piston seal circle place in hydraulic piston (8) the sidewall annular groove.
10. like each described improved multifunctional clutch booster in the claim 2,4,6; It is characterized in that: said boosting piston (3) comprises at least one boosting piston wear ring (6), and said boosting piston wear ring (6) places in boosting piston (3) the sidewall annular groove.
11. improved multifunctional clutch booster as claimed in claim 10; It is characterized in that: said hydraulic piston (8) has at least one hydraulic piston wear ring (6); At least one hydraulic piston seal circle, and said hydraulic piston wear ring (6) and hydraulic piston seal circle place in hydraulic piston (8) the sidewall annular groove.
12. like each described improved multifunctional clutch booster in the claim 3,5,7; It is characterized in that: said boosting piston (3) comprises at least one boosting piston wear ring (6), and said boosting piston wear ring (6) places in boosting piston (3) the sidewall annular groove.
13. improved multifunctional clutch booster as claimed in claim 12; It is characterized in that: said hydraulic piston (8) has at least one hydraulic piston wear ring (6); At least one hydraulic piston seal circle, and said hydraulic piston wear ring (6) and hydraulic piston seal circle place in hydraulic piston (8) the sidewall annular groove.
14. like claim 8 or 9 described improved multifunctional clutch boosters, it is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end near power-assisted cylinder body (4) of valve body (10).
15. improved multifunctional clutch booster as claimed in claim 10 is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end near power-assisted cylinder body (4) of valve body (10).
16. improved multifunctional clutch booster as claimed in claim 11 is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end near power-assisted cylinder body (4) of valve body (10).
17. like claim 8 or 9 described improved multifunctional clutch boosters, it is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end away from power-assisted cylinder body (4) of valve body (10).
18. improved multifunctional clutch booster as claimed in claim 12 is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end away from power-assisted cylinder body (4) of valve body (10).
19. improved multifunctional clutch booster as claimed in claim 13 is characterized in that: said valve body (10) has a bleed screw and air flue (9) thereof, and the bleed screw hole places the end away from power-assisted cylinder body (4) of valve body (10).
20. like each described improved multifunctional clutch booster in the claim 1 to 9,11,13,15,16,18,19, it is characterized in that: said hydraulic piston (8) is no inner-cavity structure.
21. improved multifunctional clutch booster as claimed in claim 10 is characterized in that: said hydraulic piston (8) is no inner-cavity structure.
22. improved multifunctional clutch booster as claimed in claim 12,, it is characterized in that: said hydraulic piston (8) is no inner-cavity structure.
23. improved multifunctional clutch booster as claimed in claim 14,, it is characterized in that: said hydraulic piston (8) is no inner-cavity structure.
24. improved multifunctional clutch booster as claimed in claim 17,, it is characterized in that: said hydraulic piston (8) is no inner-cavity structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910265463 CN101713439B (en) | 2009-12-29 | 2009-12-29 | Improved multifunctional clutch booster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910265463 CN101713439B (en) | 2009-12-29 | 2009-12-29 | Improved multifunctional clutch booster |
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| CN101713439A CN101713439A (en) | 2010-05-26 |
| CN101713439B true CN101713439B (en) | 2012-05-02 |
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| CN 200910265463 Active CN101713439B (en) | 2009-12-29 | 2009-12-29 | Improved multifunctional clutch booster |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858393B (en) * | 2010-07-07 | 2012-11-28 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
| CN102588462B (en) * | 2012-02-24 | 2016-03-30 | 瑞立集团瑞安汽车零部件有限公司 | Electric hydraulic servo clutch and accordingly gearbox and vehicle |
| CN102562852B (en) * | 2012-02-29 | 2013-07-31 | 郑州宇通客车股份有限公司 | Clutch slave cylinder for hybrid electric vehicles |
| CN102837701A (en) * | 2012-09-28 | 2012-12-26 | 吴崇铭 | Automobile electronic automatic clutch controlled by computer |
| CN103511500B (en) * | 2013-09-25 | 2016-05-04 | 郑州宇通客车股份有限公司 | Clutch slave cylinder for hybrid electric vehicles |
| CN110043579B (en) * | 2019-05-13 | 2024-01-26 | 温州市东启汽车零部件制造有限公司 | Working cylinder assembly with hydraulic power-assisted clutch |
| CN110185721A (en) * | 2019-05-16 | 2019-08-30 | 浙江科力车辆控制系统有限公司 | Electric control clutch booster |
| CN111102306B (en) * | 2020-01-15 | 2024-06-14 | 康斯博格莫尔斯(上海)控制系统有限公司 | Clutch booster |
| CN112128299B (en) * | 2020-09-30 | 2024-09-17 | 瑞立集团瑞安汽车零部件有限公司 | Explosion-proof electromagnetic device and explosion-proof AMT clutch electromechanical device |
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|---|---|---|---|---|
| CN1213748A (en) * | 1997-10-06 | 1999-04-14 | 自动车机器株式会社 | Clutch boosting device |
| CN2656241Y (en) * | 2003-06-30 | 2004-11-17 | 瑞立集团有限公司 | Internal breathing piston type spring brake air chamber |
| CN201110325Y (en) * | 2007-08-28 | 2008-09-03 | 刘锦辉 | Clutch booster |
| CN201568474U (en) * | 2009-12-29 | 2010-09-01 | 瑞立集团瑞安汽车零部件有限公司 | Improved multifunctional clutch booster |
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2009
- 2009-12-29 CN CN 200910265463 patent/CN101713439B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213748A (en) * | 1997-10-06 | 1999-04-14 | 自动车机器株式会社 | Clutch boosting device |
| CN2656241Y (en) * | 2003-06-30 | 2004-11-17 | 瑞立集团有限公司 | Internal breathing piston type spring brake air chamber |
| CN201110325Y (en) * | 2007-08-28 | 2008-09-03 | 刘锦辉 | Clutch booster |
| CN201568474U (en) * | 2009-12-29 | 2010-09-01 | 瑞立集团瑞安汽车零部件有限公司 | Improved multifunctional clutch booster |
Non-Patent Citations (1)
| Title |
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| JP特开2008-25779A 2008.02.07 |
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| CN101713439A (en) | 2010-05-26 |
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Denomination of invention: Improved multifunctional clutch booster Effective date of registration: 20211014 Granted publication date: 20120502 Pledgee: Ruian sub branch of Wenzhou Bank Co., Ltd Pledgor: RUILI GROUP RUIAN AUTO PARTS Co.,Ltd. Registration number: Y2021330001902 |
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