• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. - BLOCK OF THE MAIN 1 SHSHDROV OF THE HYDRAULIC BRAKING SYSTEM OF THE VEHICLE, containing two separate main cylinders, the compression cavities of which are communicated by the bypass channel- in which each master cylinder is installed by the overflow valve with a saddle, 1m in the body of the corresponding master cylinder , characterized in that, in order to increase its reliability, the shut-off element of each relief valve is kinematically connected by means of an intermediate element to a profiled surface A master cylinder piston providing the closed, throttled, and open states of the bypass valve at different piston positions. 2. The unit according to claim 1, characterized in that the shut-off element of the ILG,;, .., of each bypass valve is pressed against the seat by its own weight. 3. The block according to n.lj is different with the fact that the shut-off element of each bypass valve is pressed to the saddle by a spring installed in the bypass channel. 4. Blocked according to Claim 1, which is based on the fact that at one of the electric elements of each bypass valve, separate elastic protrusions are inserted, providing a gap between the locking element and the saddle for throttling the liquid. 5. Bloc according to claim 4, characterized in that the protrusions are formed by (U) vanes on a saddle made of an elastomeric material. 6. A unit according to claim 4, characterized in that the saddle is flat and the protrusions are formed on the locking element. 7. The unit according to claim 6, about tl and Ch-a y and with the fact that the locking element / h1 is equipped with a seal located oo adjacent to the seat, and the protrusions are made on the seal. S 8. The block according to claim; 7, characterized in that the seal is made of an elastomeric material. Priority points: 02.10.80po nn. 1,2,4,5,06 .03.81po pp 3,6,7,8.
    公开号:SU1178319A3
    申请号:SU813352810
    申请日:1981-10-01
    公开日:1985-09-07
    发明作者:Джордж Прайс Энтони；Кэмпбелл Рой
    申请人:Лукас Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to the field of vehicle braking. Closest to the invention is the master cylinder block of a hydraulic brake system of transport means, comprising two separate master cylinders, the compression cavities of which are communicated to the percussion channel, in which each master cylinder is mounted on an overflow valve with a saddle made in the body of the corresponding master cylinder, and locking element and. However, the known block of main cylinders has insufficient reliability. The purpose of the invention is to increase its reliability. This goal is achieved by the fact that in the block of the main cylinders of the hydraulic brake system of transport means containing dya separate master cylinders, the compression cavities of which are communicated by a bypass channel, in which each master cylinder has an nq bypass valve with a saddle executed in the body of the corresponding master cylinder , and the locking element, the locking element of each bypass valve through an intermediate element kinematically connected with the profiled surface of the main chi Indra providing closed, and the throttle open state of the bypass valve in different positions of the piston., each locking element perepus Nogo valve biased to seat dei viem under its own weight. Shut-off element of each bypass valve. Preloaded to the saddle of the spring installed in the bypass channel. Separate resilient protrusions are provided at one of the elements of each relief valve, providing a gap between the closure element and the seat for throttling the fluid. The projections are formed on a saddle made of elastomeric material. The saddle is flat and the protrusions are formed on the locking element. The locking element is provided with a seal located next to the seat, and the protrusions are provided on the seal. The seal is made of elastomeric material. FIG. 1 shows a block of master cylinders with full and partial cross sections; in fig. 2 - overflow valves cross section; in fig. 3 is a modification of the relief valve in the throttled state, section; in fig. 4 - the same, in the fully open state; in fig. 5 - the same in the closed state; in fig. 6 — modification of the master cylinder block with full and partial longitudinal cuts; in fig. 7 bypass valve, longitudinal section. The master cylinder unit, (Figs. 1, 2) contains two master cylinders 1 and 2, formed from parallel channels 3 and 4, each of which is located in a separate housing 5 and 6. Both master cylinders are identical in design. The piston 7 in the channel 3 is hooked with a spherical head 8 on the pedal-operated pedal 9. The stop for the head 8 is formed by an annular clutch 10 fixed by a spring retaining ring 11 placed in an annular groove 12. The piston 7 has a front lug 13 of smaller diameter with a perforated flange 14 having an annular recess 15. A fluid circulation window 16 connected to reservoir 17 is overlapped by a recovery valve 18, having a stop: element 19 for engaging the seat 20 held at the end of the rod 21, the other end of which has an expanded head 22 moving in the direction of the cement longitudinal channel 23 of the protrusion 13. The head 22 is held in the channel 23 by a plate 24 installed in the groove 25 inside the channel 26 of the protrusion 13. The plate 24 forms an abutment for the compression spring 27. The compression cavity 28 is connected via a window 29 to the brake. The compression cavities 28 of the main cylinders 1 and 2 are connected by a bypass channel containing a tube 30 connecting the exhaust channels 31. 3 The bypass valve 32 in the channel 31 contains a shut-off element in the form of a ball 33. The saddle 4 of the bypass valve contains a flange 35 and is positioned so that the ball 33 can normally remain in an intermediate position and be kept from directly engaging the saddle 34 with a film of liquid, providing throttling of the fluid flow through the valve 32 from the tube 30 to cavity 28, compensating for the increase in the volume of liquid during loading rotate in tube 30. I The interstitial thrust element in the form of a FiapHKa 36 is mounted to move in channel 3i. When one of the main cylinders, such as cylinder 1, is short, moving forward the piston 7 brings element 19 into contact with the saddle 2 isolating the reservoir 17 from the cavity 28 At the same time, the piston 7 acts on the ball 36 with a profiled surface 37, which moves the ball 33 from the saddle 34. With further movement of the piston, the valve 32 of the par 1 remains fully open, and the return pressure on the cylinder 33 of the cylinder 32 presses at ball against the valve seat and the cylinder bypass valve 2 closed. When the master cylinders operate simultaneously, both relief valves remain open w. In the modified relief valve (Fig. 3-5) there is a seat 38. 9 from an elastomeric material, such as rubber, which is held on the collar 35 by the sleeve 39. The outer part of the saddle 38 has several separate, deformable elastic protrusions 40 on which the ball 33 is placed. The projections 40 hold the ball 33 in the throttled position. Since the distance between the channel 3 and the saddle 38 is greater than that in the structure of FIG. 1 and 2, the second ball 41 is positioned between the balls 36 and 33. In contrast to the structure in FIG. 1, 2, the structure in FIG. 3-5, the overflow valve overlaps occurs when fluid pressure is applied to the ball 33 from the side of the tube 30 by deforming the projections 40. The cylinder block in FIG. 6 and 7 are similar to the structure in Fig. 1 and differ only in the performance of the relief valves. In this construction, the locking element contains a piston 42 and a rubber seal 43, having several separate, deformable elastic protrusions 44, which in the intermediate position of the locking element provide fluid throttling through the gap 45. A spring 46 is installed in the channel 31, pressing the protrusions 44 to the saddle 34. Operation The cylinder block in FIG. 6-7 is similar to the operation of the previously described structures.
    srig.2
    Fig.Z
    Figl fs fo № IS gz -yyy Mr. X /./
    权利要求:
    Claims (8)
    [1]
    1. BLOCK OF MAIN YILINDS OF A HYDRAULIC BRAKE SYSTEM OF A VEHICLE, containing two separate main cylinders, the compression cavities of which are communicated by a bypass channel, in which each master cylinder has a bypass valve with a seat made in the housing of the corresponding main cylinder and a shut-off element, o characterized in that, in order to increase its reliability, the locking element of each bypass valve by means of an intermediate element is kinematically connected with the profiled surface a master cylinder piston that provides closed, throttled, and open states of the bypass valve at different positions of the piston.
    [2]
    2. The block according to claim 1, characterized in that the shut-off element of each bypass valve is pressed to the seat under the action of its own weight.
    [3]
    3. The block according to claim 1, characterized in that the shut-off element of each bypass valve is pressed against the seat by a spring installed in the bypass channel.
    [4]
    4. Block according to claim 1, due to the fact that on one of the elements of each bypass valve there are separate elastic protrusions providing a gap between the locking element and the seat for throttling the liquid. *
    [5]
    5. The block according to claim 4, characterized in that the protrusions are formed on a saddle made of elastomeric material.
    [6]
    6. Block pop. 4, characterized in that the saddle is made flat, and the protrusions are formed on the locking element.
    [7]
    7. The unit according to claim 6, with the fact that the locking element. * Is equipped with a seal located next to the seat, and the protrusions are made : on the seal.
    [8]
    8. The block according to claim 7, characterized in that the seal is made of elastomeric material.
    Priority on points:
    02.10.80 according to claims 1,2,4,5;
    03/06/81 according to claims 3,6,7,8.
    SU <,., 1178319
    类似技术:
    公开号 | 公开日 | 专利标题
    US4086770A|1978-05-02|Dual circuit quick take-up master cylinder
    US3885391A|1975-05-27|Hydraulic braking system
    US4405181A|1983-09-20|Brake valve
    US3156097A|1964-11-10|Hydraulic master cylinder
    SU1178319A3|1985-09-07|Main cylinder unit of vehicle hydraulic braking system
    US3232628A|1966-02-01|Valve arrangement for the master cylinder of an hydraulic brake actuating system
    PL184079B1|2002-08-30|Assisted braking system with variable assisting force ratio
    US3315469A|1967-04-25|Pressure proportioning valve
    US3165896A|1965-01-19|Hydraulic brake
    US3216198A|1965-11-09|Fluid reservoir for a master cylinder assembly
    US3488959A|1970-01-13|Dual master cylinder
    US3946563A|1976-03-30|Master cylinders for dual hydraulic braking systems
    US2189134A|1940-02-06|Hydraulic brake
    US3140124A|1964-07-07|Accumulator means
    EP0112009B1|1986-11-05|A master cylinder assembly for a vehicle hydraulic braking system
    USRE27784E|1973-10-16|Master cylindhi) kok hydraulic: xhakinc, sy.stkm
    US3899889A|1975-08-19|Pedal ratio control for hydraulic booster
    US4449757A|1984-05-22|Hydraulic actuator for a vehicle internal shoe-drum brake
    US3800541A|1974-04-02|Brake master cylinder cup seal with valve
    US3837354A|1974-09-24|Hydraulic braking systems for vehicles
    US3310944A|1967-03-28|Master cylinder
    US3967538A|1976-07-06|Hydraulic booster
    US2809495A|1957-10-15|Master cylinder for hydraulic brake systems
    US4229940A|1980-10-28|Hydraulic master cylinder
    SU1186081A3|1985-10-15|Device for bleeding air from spring-loaded accumulating brake cylinder
    同族专利:
    公开号 | 公开日
    CA1164511A|1984-03-27|
    EP0049969B1|1985-06-26|
    GB2084678B|1984-07-04|
    EP0049969A1|1982-04-21|
    GB2084678A|1982-04-15|
    DE3171132D1|1985-08-01|
    ES505918A0|1982-08-16|
    ES8206308A1|1982-08-16|
    US4488405A|1984-12-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1160478A|1956-11-05|1958-07-16|Rech Etudes Production Sarl|Power transmitter, assisted by auxiliary hydraulic power|
    US3345112A|1966-02-07|1967-10-03|Lambert & Brake Corp|Brake equalizer valve|
    AT293897B|1969-05-02|1971-10-25|Steyr Daimler Puch Ag|Hydraulic braking device for steering or all-wheel braking of two-axle vehicles, in particular agricultural tractors|
    AT305791B|1970-09-22|1973-03-12|Steyr Daimler Puch Ag|Hydraulic braking device for steering or all-wheel braking of two-axle vehicles, in particular agricultural tractors|
    GB1472136A|1974-06-08|1977-05-04|Girling Ltd|Master cylinder assembly for a vehicle hydraulic braking system|
    GB1591028A|1976-10-12|1981-06-10|Girling Ltd|Master cylinder assemblies for vehicle hydraulic braking systems|
    US4178757A|1977-08-10|1979-12-18|White Farm Equipment Company|Flow control means|GB2098683B|1981-05-15|1985-04-03|Lucas Industries Ltd|Booster-assisted hydraulic master cylinders for vehicle braking systems|
    US4553395A|1982-06-11|1985-11-19|Lucas Industries Public Limited Company|Master cylinder assembly for a vehicle braking system|
    US4534172A|1982-11-02|1985-08-13|Lucas Industries Public Limited Company|Master cylinder assembly for a vehicle hydraulic braking system|
    EP0231930A3|1986-02-07|1987-12-23|LUCAS INDUSTRIES public limited company|Hydraulic brake installation with bleeding|
    GB8710273D0|1987-04-30|1987-06-03|Lucas Ind Plc|Master cylinder assembly|
    US5191765A|1989-04-21|1993-03-09|Alfred Teves Gmbh|Master cylinder for a hydraulic brake system and steering brake system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8031822|1980-10-02|
    GB8107146|1981-03-06|
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