CN103802810A - Composite hydraulic power assisted master cylinder - Google Patents
Composite hydraulic power assisted master cylinder Download PDFInfo
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- CN103802810A CN103802810A CN201210456296.9A CN201210456296A CN103802810A CN 103802810 A CN103802810 A CN 103802810A CN 201210456296 A CN201210456296 A CN 201210456296A CN 103802810 A CN103802810 A CN 103802810A
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Abstract
The invention discloses a composite hydraulic power assisted master cylinder, which comprises an oil cup, a cylinder body, a first braking assembly and a second braking assembly, wherein the first braking assembly and the second braking assembly are arranged in the cylinder body; the first braking assembly is arranged in a first cavity; the second braking assembly is arranged in a third cavity; a spring seat and a spring are arranged between the first braking assembly and the second braking assembly; the spring seat and the spring are arranged in a second cavity; under the effect of the spring mounted in the spring seat, the linkage of the first braking assembly and the second braking assembly is realized. According to the composite hydraulic power assisted master cylinder, a cylinder diameter is added, so that the phenomenon that double cavities and two pistons in the same cylinder diameter of the existing pump with a common structure are used for controlling four wheels, thus when one cavity is invalid, two wheels in the same direction both lose the braking effect is avoided, the braking performance is more reliable, and the driving is safer.
Description
Technical field
The present invention relates to a kind of automobile equipment, particularly relate to a kind of compound hydraulic booster master cylinder.
Background technology
As shown in Figure 1, at present, existing brake pump comprises first piston assembly 1 ' and the second piston assembly 2 ', and cylinder diameter 3 ' is divided into the first liquid storage cylinder 31 ' and the first pressure chamber 32 ' by first piston assembly 1 '; Cylinder diameter 3 ' is divided into the second liquid storage cylinder 33 ' and the second pressure chamber 34 ' by the second piston assembly 2 '.The pressure that wherein first piston assembly 1 ' is exported is for controlling the braking of the near front wheel and off front wheel; The pressure that the second piston assembly 2 ' is exported is for controlling the braking of left rear wheel and off hind wheel; Adopt technique scheme, easily there is following problems: 1, the braking failure of first piston assembly 1 ' or the second piston total 2 ', all can lose braking effect by unidirectional two wheels that cause vehicle, especially when front-wheel is in braking, but after trailing wheel braking failure, easily cause slide-out; 2, after the spring in first piston assembly 1 ' or the second piston assembly 2 ' ruptures, will make piston reset, cause whole master brake cylinder to lose efficacy, will greatly increase the potential safety hazard of driving.
Summary of the invention
The object of the present invention is to provide the compound hydraulic booster master cylinder that a kind of safe reliability is high.
For achieving the above object, technical solution of the present invention is:
The present invention is a kind of compound hydraulic booster master cylinder, and it comprises lubricating cup, cylinder body and is arranged on the first brake assembly and the second brake assembly in cylinder body; Described lubricating cup 1 is arranged on the top of cylinder body 2; Described cylinder body is hollow member, is provided with successively the first chamber, the second chamber and the 3rd chamber; Described the first chamber and the second chamber are single chamber, and by two, independent left chamber and right chamber form the 3rd chamber side by side; Between the first chamber and the second chamber, between the second chamber and the 3rd chamber, be respectively equipped with oily passage, for realizing the conducting of the second chamber and the first chamber, the second chamber and the 3rd chamber oil circuit;
The first described brake assembly is arranged in the first chamber, the second brake assembly arranges in the 3rd chamber, between the first brake assembly and the second brake assembly, be provided with spring perch and spring, this spring perch and spring are arranged in the second chamber, by being arranged on the effect of spring perch inner spring, can realize the interlock of the first brake assembly and the second brake assembly;
The first described brake assembly comprises first piston, sealing leather collar, sealing apron suit is positioned on the inboard wall of cylinder block of the first chamber, described first piston activity is nested with in the first chamber, its inner sealing leather collar through being arranged on the first chamber middle part, the first chamber is separated into the first brake-pressure chamber 1 and the first braking liquid storage cylinder by sealing leather collar, the outer end end face of first piston is provided with a push rod incoming end, in the first chamber, a side near first piston offers several hydraulic fluid ports, these several hydraulic fluid ports are positioned at the side of sealing leather collar away from the second chamber, be positioned at cylinder body on the body in the first brake-pressure chamber and be provided with the first brake-pressure output oil port, this hydraulic fluid port and the first brake-pressure chamber conducting,
The second described brake assembly comprises two the second piston assemblies that are arranged side by side; In two described the second left chamber 1 and right chamber of piston assemblies difference movable set in the 3rd chamber;
The second described piston assembly comprises the second piston, pull back spring and several sealing leather collars; Described pull back spring and sealing leather collar are all sleeved on the second piston, and the second piston assembly that activity is located in left chamber is divided into the second brake-pressure chamber, the second braking liquid storage cylinder and the second brake boost chamber by sealing leather collar by left chamber; The second piston assembly that activity is located in right chamber is divided into the second brake-pressure chamber, the second braking liquid storage cylinder and the second brake boost chamber by sealing leather collar by right chamber; The large part of the second described piston in the 3rd chamber and its extension extend in the second chamber and relative with the end face of spring perch; The described cylinder body that is positioned at the 3rd chamber is provided with the oily passage of the mistake communicating with lubricating cup, for realizing, the oil circuit of the second braking liquid storage cylinder and the second chamber is supplied with, be positioned on the body of left chamber and right chamber at cylinder body and be positioned at the second position, brake-pressure chamber and be respectively provided with a second brake-pressure oil outlet, this second brake-pressure oil outlet respectively with the second brake-pressure chamber conducting; Be positioned at cylinder body on the body in the second brake boost chamber and be provided with hydraulic fluid port, the external power-assisted oil pump of this hydraulic fluid port also communicates with the second brake boost chamber.
The described cylinder body that is positioned at the first chamber is provided with an annular groove, and this annular groove is relative with the end of first piston, and the first described braking liquid storage cylinder is positioned at this annular groove, and is conducted by the fluid of the oily passage of the mistake on this cylinder body and the second chamber.
Described spring perch is a Cylinder shape constructional element, both ends open, and middle part is provided with a blocking surface, and its outer wall is provided with some hydraulic fluid ports for fluid turnover, and these spring perch 5 activities are nested with on the inwall of the second chamber.
Between the second chamber and the 3rd chamber, be provided with the second piston positioning seat, this second piston positioning seat is provided with the through hole that two confessions the second piston rod end passes, and is provided with the shelves ring raising up simultaneously on the end face with respect to spring perch.
One end and the spring perch of the spring of the second described chamber lean, and one end is sleeved on the shelves ring that the second piston positioning seat raises up.
The second described piston is made up of piston rod and flange; Flange is located at the middle part of piston rod, piston rod is separated into inside and outside two sections, the inner segment of piston rod and outer section stretch into respectively the second chamber and the 3rd chamber, described flange is provided with annular groove, sealing leather collar is sleeved in annular groove, the inner that is positioned at the 3rd chamber at piston rod is provided with another sealing leather collar, and surrounding of sealing leather collar and the 3rd chamber forms the second braking liquid storage cylinder.
In the left chamber of the 3rd chamber and right chamber, be all provided with a step surface 4, this step surface is positioned at the second braking liquid storage cylinder and leans on the side of the second piston along the rod end of the 3rd chamber extension, on this step surface, be provided with a spring fixed seat, described pull back spring one end is fixed on spring fixed seat, and the other end leans on the flange of the second piston.
The described cylinder body that is positioned at the 3rd chamber is provided with the oily passage of the mistake communicating with lubricating cup, this cross oily passage respectively with the left side of the 3rd chamber, right chamber forms the second brake-pressure chamber compensation hydraulic fluid port and the second braking liquid storage cylinder hydraulic fluid port, wherein the second braking liquid storage cylinder hydraulic fluid port is conducted with the second braking liquid storage cylinder all the time, and the second brake-pressure chamber compensation hydraulic fluid port is in the time that the second piston assembly is braked, itself and the second brake-pressure chamber 1 are conducted, along with the second piston moves along the 3rd chamber, the second brake-pressure chamber compensation hydraulic fluid port is arranged on the sealing leather collar that the second piston is positioned at the 3rd chamber body of rod end and stops up, make the second brake-pressure chamber form an airtight cavity.
Adopt after such scheme, the present invention has the following advantages:
1, the present invention only has on the basis of two chambers at original cylinder body, increase a separate chamber, for realizing the separate of propons braking or two wheel brakings of back axle braking, same direction two wheels of avoiding tradition to cause after losing efficacy in a chamber all lose the phenomenon of braking effect, make deceleration and stopping performance of the present invention more reliable, drive a vehicle safer.
2, first piston assembly of the present invention adopts plunger-type structure, increase the design of first piston pull back spring and spring perch, simultaneously because the second piston assembly adopts dual-piston structure, even if there is fracture in first piston pull back spring or the second piston spring, can not cause braking failure yet, avoid traditional braking master cylinder, when any spring failure of first piston or the second piston, cannot reset and the braking failure that causes.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is the cutaway view of commonly using brake pump;
Fig. 2 is axonometric drawing of the present invention;
Fig. 3 is three-dimensional exploded view of the present invention;
Fig. 4 is front elevation of the present invention;
Fig. 5 is the partial enlarged drawing of A of the present invention portion;
Fig. 6 is the cutaway view of cylinder body of the present invention.
The specific embodiment
As shown in Figure 2,3, the present invention is a kind of compound hydraulic booster master cylinder, and it comprises lubricating cup 1, cylinder body 2 and is arranged on the first brake assembly 3, the second brake assembly 4, spring perch 5, spring 6, the second piston positioning seat 7 in cylinder body 1.
Described lubricating cup 1 is arranged on the top of cylinder body 2.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, described cylinder body 2 is hollow member, is provided with successively the first chamber 21, the second chamber 22 and the 3rd chamber 23.Described the first chamber 21 and the second chamber 22 are single chamber, and by two, independent left chamber 231 and right chamber 232 form the 3rd chamber 23 side by side.Between the first chamber 21 and the second chamber 22, between the second chamber 22 and the 3rd chamber 23, be respectively equipped with oily passage 241,242, for realizing the conducting of the second chamber 22 and the first chamber 21, the second chamber 22 and the 3rd chamber 23 oil circuits.The first described brake assembly 3 is arranged in the first chamber 21, the second brake assembly 4 arranges in the 3rd chamber 23, between the first brake assembly 3 and the second brake assembly 4, be provided with spring perch 5 and spring 6, this spring perch 5 and spring 6 are arranged in the second chamber 22, by being arranged on the effect of spring perch 5 inner springs 6, can realize the interlock of the first brake assembly 3 and the second brake assembly 4.Between the second chamber 22 and the 3rd chamber 23, be provided with the second piston positioning seat 7, this second piston positioning seat 7 is provided with the through hole 71 that two confessions the second piston 411 rod ends pass, and is provided with the shelves ring 72 raising up simultaneously on the end face with respect to spring perch 5.Spring 6 one end and the spring perch 5 of the second described chamber 22 lean, and one end is sleeved on the shelves ring 72 that the second piston positioning seat 7 raises up.
Described spring perch 5 is a Cylinder shape constructional element, both ends open, and middle part is provided with a blocking surface 51, and its outer wall is provided with some hydraulic fluid ports 52 for fluid turnover, and these spring perch 5 activities are nested with on the inwall of the second chamber 22.
The first described brake assembly 3 comprises first piston 31, sealing leather collar 32.Sealing apron 32 suits are positioned on cylinder body 2 inwalls of the first chamber 21, described first piston 31 activities are nested with in the first chamber 21, its inner sealing leather collar 32 through being arranged on the first chamber 21 middle parts, the first chamber 21 is separated into the first brake-pressure chamber 211 and the first braking liquid storage cylinder 212 by sealing leather collar 32, the outer end end face of first piston 31 is provided with a push rod incoming end 311, in the first chamber 21, a side near first piston 31 offers several hydraulic fluid ports 213(referring to Fig. 5), these several hydraulic fluid ports 213 are positioned at the side of sealing leather collar 32 away from the second chamber 22, under initial condition, this hydraulic fluid port 213 can be by the first brake-pressure chamber 211 and the first braking liquid storage cylinder 212 mutual conduction, when first piston 31 under external force, move towards the second chamber 22, sealed apron 32 shutoff of this hydraulic fluid port 213, make the first brake-pressure chamber 211 form airtight cavity, be positioned at cylinder body 2 on the body in the first brake-pressure chamber 211 and be provided with the first brake-pressure output oil port P, this hydraulic fluid port P and the first brake-pressure chamber 211 conductings.The described cylinder body that is positioned at the first chamber 21 1 is provided with an annular groove, this annular groove is relative with the end of first piston 31, the first described braking liquid storage cylinder 212 is positioned at this annular groove, and is conducted by the fluid of the oily passage 241 of the mistake on this cylinder body 2 and the second chamber 22.
The second described brake assembly 4 comprises two the second piston assemblies 41 that are arranged side by side, and the second described piston assembly 41 comprises the second piston 411, pull back spring 412 and several sealing leather collars.The second described piston 411 is made up of piston rod 4111 and flange 4112, flange 4112 is located at the middle part of piston rod 4111, piston rod 4111 is separated into inside and outside two sections, the inner segment of piston rod 4111 and outer section stretch into respectively the second chamber 22 and the 3rd chamber 23, described flange 4112 is provided with annular groove, sealing leather collar 414 is sleeved in annular groove by apron supporting seat, the inner that is positioned at the 3rd chamber 23 at piston rod 4111 is provided with another sealing leather collar 415, and surrounding of sealing leather collar 414,415 and the 3rd chamber 23 forms the second braking liquid storage cylinder 2312.
Described pull back spring 412 and sealing leather collar 414,415 are all sleeved on the second piston 411, activity is located in the second piston 411 of left chamber 231, by sheathed thereon sealing leather collar 415,414 successively left chamber 231 is divided into the second brake-pressure chamber 2311, the second braking liquid storage cylinder 2312 and the second brake boost chamber 2313; Activity is located in the second piston 411 of right chamber 232, successively right chamber 232 is divided into the second brake-pressure chamber 2321, the second braking liquid storage cylinder 2322 and the second brake boost chamber 2323 by sheathed sealing leather collar 415,414 thereon.The large part of the second described piston 411 in the 3rd chamber 23 and its extension extend in the second chamber 22 and relative with the end face of spring perch 5.The described cylinder body that is positioned at the 3rd chamber 23 is provided with the oily passage 242 of the mistake communicating with lubricating cup 1, for realizing, the oil circuit of the second chamber 22 is supplied with, be positioned on the body of left chamber 231 and right chamber 232 at cylinder body 1 and be positioned at 2311,2321 positions, the second brake-pressure chamber and be respectively provided with the second brake-pressure oil outlet LF, a RF, this second brake-pressure oil outlet LF, RF respectively with the second brake-pressure chamber 2311,2321 conductings; Be positioned at cylinder body 2 on the body in the second brake boost chamber 2313,2323 and be provided with hydraulic fluid port, the external power-assisted oil pump of this hydraulic fluid port also communicates with the second brake boost chamber 2313,2323.
In the left chamber 231 of the 3rd described chamber 23 and right chamber 232, be all provided with a step surface 2314,2324, this step surface 2314,2324 is positioned at a side of the rod end that the second braking liquid storage cylinder 2312,2322 extends along the 3rd chamber 23 by the second piston 411, on this step surface 2314,2324, be provided with a spring fixed seat 2315,2325, described pull back spring 412 one end are fixed on spring fixed seat 2315,2325, and the other end leans on the flange 4112 of the second piston 411.The described cylinder body that is positioned at the 3rd chamber 23 is provided with the oily passage 214 of the mistake communicating with lubricating cup 1, this cross oily passage 214 respectively with the left side of the 3rd chamber 23, right chamber 231, 232 form the second brake-pressure chamber compensation hydraulic fluid port 2316 and the second braking liquid storage cylinder hydraulic fluid port 2317, wherein the second braking liquid storage cylinder hydraulic fluid port 2317 is conducted with the second braking liquid storage cylinder 2312 all the time, and the second brake-pressure chamber compensation hydraulic fluid port 2316 is in the time that the second piston 411 assemblies are braked, itself and the second brake-pressure chamber 2311, 2321 are conducted, along with the second piston 411 moves along the 3rd chamber 23, the second brake-pressure chamber compensation hydraulic fluid port 2316 is arranged on the sealing leather collar 415 that the second piston 411 is positioned at the 3rd chamber 23 body of rod ends and stops up, make the second brake-pressure chamber 2311 form an airtight cavity.Be provided with a fuel-economizing hole at the second described brake-pressure chamber compensation hydraulic fluid port 2316.
Principle of work of the present invention:
When braking, brake pedal is depressed, when the first 211(P chamber, brake-pressure chamber) first piston 31 sets up pressure (the first brake-pressure chamber 211 is also simultaneously to front-wheel wheel cylinder or brake clamp delivery pressure) in the first brake-pressure chamber 211 while covering idle travel, first piston 31 continues reach and touches spring perch 5 pusher flexible spring seats 5, continue reach together with spring perch 5, when touching two the second pistons 411 and promote the second piston 411, spring perch 5 moves forward, as the 3rd chamber 23(LF, RF chamber) piston sets up pressure after covering idle travel, pressure is by the second brake-pressure oil outlet LF, RF outputs to brake cylinder or brake clamp plays braking effect.After end of braking pressure is removed, the first 211(P chamber, brake-pressure chamber) and the 3rd chamber 23(LF, RF chamber) the second piston 411 under the effect of pull back spring 412, get back to initial position (the mechanical motion principle that is equal to common brake pump when the inefficacy of power-assisted chamber plays brake action); Simultaneously owing to being provided with the second piston positioning seat 7 between the first brake assembly 3 and the second brake assembly 4, even if two pull back springs 412 lost efficacy simultaneously, but because spring 6 one end and the second piston positioning seat 7 lean, still can make first piston 31 normally reset, make propons braking unaffected; In the time that spring 6 lost efficacy, drive the second piston 411 by pull back spring 412, be then with flexible spring seat 5, make first piston 31 be returned to certain position, can guarantee that back axle braking is unaffected, propons also has certain braking effect.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (8)
1. a compound hydraulic booster master cylinder, is characterized in that: it comprises lubricating cup, cylinder body and is arranged on the first brake assembly and the second brake assembly in cylinder body; Described lubricating cup is arranged on the top of cylinder body; Described cylinder body is hollow member, is provided with successively the first chamber, the second chamber and the 3rd chamber; Described the first chamber and the second chamber are single chamber, and by two, independent left chamber and right chamber form the 3rd chamber side by side; Between the first chamber and the second chamber, between the second chamber and the 3rd chamber, be respectively equipped with oily passage, for realizing the conducting of the second chamber and the first chamber, the second chamber and the 3rd chamber oil circuit;
The first described brake assembly is arranged in the first chamber, and the second brake assembly arranges in the 3rd chamber, between the first brake assembly and the second brake assembly, is provided with spring perch and spring, and this spring perch and spring are arranged in the second chamber;
The first described brake assembly comprises first piston, sealing leather collar, sealing apron suit is positioned on the inboard wall of cylinder block of the first chamber, described first piston activity is nested with in the first chamber, its inner sealing leather collar through being arranged on the first chamber middle part, the first chamber is separated into the first brake-pressure chamber and the first braking liquid storage cylinder by sealing leather collar, the outer end end face of first piston is provided with a push rod incoming end, in the first chamber, a side near first piston offers several hydraulic fluid ports, these several hydraulic fluid ports are positioned at the side of sealing leather collar away from the second chamber, be positioned at cylinder body on the body in the first brake-pressure chamber and be provided with the first brake-pressure output oil port, this hydraulic fluid port and the first brake-pressure chamber conducting,
The second described brake assembly comprises two the second piston assemblies that are arranged side by side; In two described the second left chamber and right chamber of piston assemblies difference movable set in the 3rd chamber;
The second described piston assembly comprises the second piston, pull back spring and several sealing leather collars; Described pull back spring and sealing leather collar are all sleeved on the second piston, and the second piston assembly that activity is located in left chamber is divided into the second brake-pressure chamber, the second braking liquid storage cylinder and the second brake boost chamber by sealing leather collar by left chamber; The second piston assembly that activity is located in right chamber is divided into the second brake-pressure chamber, the second braking liquid storage cylinder and the second brake boost chamber by sealing leather collar by right chamber; The large part of the second described piston in the 3rd chamber and its extension extend in the second chamber and relative with the end face of spring perch; The described cylinder body that is positioned at the 3rd chamber is provided with the oily passage of the mistake communicating with lubricating cup, for realizing, the oil circuit of the second braking liquid storage cylinder and the second chamber is supplied with, be positioned on the body of left chamber and right chamber at cylinder body and be positioned at the second position, brake-pressure chamber and be respectively provided with a second brake-pressure oil outlet, this second brake-pressure oil outlet respectively with the second brake-pressure chamber conducting; Be positioned at cylinder body on the body in the second brake boost chamber and be provided with hydraulic fluid port, the external power-assisted oil pump of this hydraulic fluid port also communicates with the second brake boost chamber.
2. compound hydraulic booster master cylinder according to claim 1, it is characterized in that: the described cylinder body that is positioned at the first chamber is provided with an annular groove, this annular groove is relative with the end of first piston, the first described braking liquid storage cylinder is positioned at this annular groove, and is conducted by the fluid of the oily passage of the mistake on this cylinder body and the second chamber.
3. compound hydraulic booster master cylinder according to claim 1, it is characterized in that: described spring perch is a Cylinder shape constructional element, both ends open, middle part is provided with a blocking surface, its outer wall is provided with some hydraulic fluid ports for fluid turnover, and this spring perch activity is nested with on the inwall of the second chamber.
4. compound hydraulic booster master cylinder according to claim 1, it is characterized in that: between the second chamber and the 3rd chamber, be provided with the second piston positioning seat, this the second piston positioning seat is provided with the through hole that two confessions the second piston rod end passes, and is provided with the shelves ring raising up simultaneously on the end face with respect to spring perch.
5. compound hydraulic booster master cylinder according to claim 4, is characterized in that: one end and the spring perch of the spring of the second described chamber lean, and one end is sleeved on the shelves ring that the second piston positioning seat raises up.
6. compound hydraulic booster master cylinder according to claim 1, is characterized in that: the second described piston is made up of piston rod and flange; Flange is located at the middle part of piston rod, piston rod is separated into inside and outside two sections, the inner segment of piston rod and outer section stretch into respectively the second chamber and the 3rd chamber, described flange is provided with annular groove, sealing leather collar is sleeved in annular groove, the inner that is positioned at the 3rd chamber at piston rod is provided with another sealing leather collar, and surrounding of sealing leather collar and the 3rd chamber forms the second braking liquid storage cylinder.
7. compound hydraulic booster master cylinder according to claim 6, it is characterized in that: in the left chamber of the 3rd chamber and right chamber, be all provided with a step surface, this step surface is positioned at the second braking liquid storage cylinder and leans on the side of the second piston along the rod end of the 3rd chamber extension, on this step surface, be provided with a spring fixed seat, described pull back spring one end is fixed on spring fixed seat, and the other end leans on the flange of the second piston.
8. compound hydraulic booster master cylinder according to claim 1, it is characterized in that: described in be positioned at the 3rd chamber cylinder body be provided with the oily passage of the mistake communicating with lubricating cup, this cross oily passage respectively with the left side of the 3rd chamber, right chamber forms the second brake-pressure chamber compensation hydraulic fluid port and the second braking liquid storage cylinder hydraulic fluid port, wherein the second braking liquid storage cylinder hydraulic fluid port is conducted with the second braking liquid storage cylinder all the time, and the second brake-pressure chamber compensation hydraulic fluid port is in the time that the second piston assembly is braked, itself and the second brake-pressure chamber are conducted, along with the second piston moves along the 3rd chamber, the second brake-pressure chamber compensation hydraulic fluid port is arranged on the sealing leather collar that the second piston is positioned at the 3rd chamber body of rod end and stops up, make the second brake-pressure chamber form an airtight cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456296.9A CN103802810A (en) | 2012-11-14 | 2012-11-14 | Composite hydraulic power assisted master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456296.9A CN103802810A (en) | 2012-11-14 | 2012-11-14 | Composite hydraulic power assisted master cylinder |
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| CN103802810A true CN103802810A (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210456296.9A Pending CN103802810A (en) | 2012-11-14 | 2012-11-14 | Composite hydraulic power assisted master cylinder |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5042273A (en) * | 1973-08-18 | 1975-04-17 | ||
| US4604870A (en) * | 1984-12-03 | 1986-08-12 | Allied Corporation | Brake booster |
| CN101108618A (en) * | 2006-05-10 | 2008-01-23 | 卢卡斯汽车股份有限公司 | Master brake cylinder arrangement for a hydraulic motor vehicle brake system and motor vehicle brake system |
| CN101242978A (en) * | 2005-08-10 | 2008-08-13 | 卢卡斯汽车股份有限公司 | Master cylinder system for an automotive hydraulic brake system and automotive hydraulic brake system |
| CN102235450A (en) * | 2010-04-22 | 2011-11-09 | 株式会社万都 | Brake actuator unit |
| WO2011138220A1 (en) * | 2010-05-04 | 2011-11-10 | Continental Teves Ag & Co. Ohg | Master cylinder for a hydraulic motor vehicle brake system |
| CN202966282U (en) * | 2012-11-14 | 2013-06-05 | 厦门永裕机械工业有限公司 | Compound hydraulic power-assisted master cylinder |
-
2012
- 2012-11-14 CN CN201210456296.9A patent/CN103802810A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5042273A (en) * | 1973-08-18 | 1975-04-17 | ||
| US4604870A (en) * | 1984-12-03 | 1986-08-12 | Allied Corporation | Brake booster |
| CN101242978A (en) * | 2005-08-10 | 2008-08-13 | 卢卡斯汽车股份有限公司 | Master cylinder system for an automotive hydraulic brake system and automotive hydraulic brake system |
| CN101108618A (en) * | 2006-05-10 | 2008-01-23 | 卢卡斯汽车股份有限公司 | Master brake cylinder arrangement for a hydraulic motor vehicle brake system and motor vehicle brake system |
| CN102235450A (en) * | 2010-04-22 | 2011-11-09 | 株式会社万都 | Brake actuator unit |
| WO2011138220A1 (en) * | 2010-05-04 | 2011-11-10 | Continental Teves Ag & Co. Ohg | Master cylinder for a hydraulic motor vehicle brake system |
| CN202966282U (en) * | 2012-11-14 | 2013-06-05 | 厦门永裕机械工业有限公司 | Compound hydraulic power-assisted master cylinder |
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Application publication date: 20140521 |