公开(公告)号：US5243823A

公开(公告)日：1993-09-14

申请号：US966220

申请日：1992-10-26

申请人： David D. Jordan ,  Howard J. Childs ,  Peter R. Johnson ,  Jack Martinic ,  Eugene G. Wright

发明人： David D. Jordan ,  Howard J. Childs ,  Peter R. Johnson ,  Jack Martinic ,  Eugene G. Wright

IPC分类号： B60T11/16 ,  B60T11/20

CPC分类号： B60T11/20 ,  B60T11/16 ,  Y10T403/7058

摘要： In a master cylinder (20), a cap (30) for guiding a primary piston (50) is located within an end opening (24) of a body (22) of the master cylinder (20). The end cap (30) retains a sleeve (40) and other components within a bore (12) of the master cylinder (20), and is attached to the body (22) of the master cylinder (20) by way of a biasing retention mechanism (45; 145, 150; 260). The mechanism (45; 145, 150; 260) may bias the end cap (30) axially inwardly of the bore (12), bias a gripping ring member (145) radially outwardly into engagement with the body (22) of the master cylinder (20), and retain a first end (32) of the end cap (30) within the bore (12) in accordance with the extent to which the first end (32) is inserted axially into the bore (12).

摘要翻译： 在主缸（20）中，用于引导主活塞（50）的盖（30）位于主缸（20）的主体（22）的端部开口（24）内。 端盖（30）将套筒（40）和其它部件保持在主缸（20）的孔（12）内，并且通过偏置件附接到主缸（20）的主体（22） 保持机构（45; 145,150; 260）。 所述机构（45; 145,150,260）可以轴向地向所述孔（12）的内侧偏压所述端盖（30），从而径向向外偏置夹紧环构件（145），以与所述主缸（12）的主体（22）接合 （20），并且根据所述第一端（32）轴向插入所述孔（12）的程度，将所述端盖（30）的第一端（32）保持在所述孔（12）内。

公开(公告)号：US4287904A

公开(公告)日：1981-09-08

申请号：US13848

申请日：1979-02-22

申请人： Gregory A. Kushner ,  Jack Martinic

发明人： Gregory A. Kushner ,  Jack Martinic

IPC分类号： F16K17/02 ,  B60T13/12 ,  F16K17/40 ,  F16K13/04

CPC分类号： F16K17/40 ,  Y10T137/1632 ,  Y10T137/8811

摘要： A valve assembly is disposed between an accumulator and a pressure chamber in a hydraulic brake booster. The valve assembly operates to communicate the pressurized fluid to the pressure chamber when the pressurized fluid within the pressure chamber is insufficient to provide a power assist during braking. The valve assembly comprises a base which is received within a housing separating the accumulator from the pressure chamber. The base defines an opening leading to the housing bore and a body extends into the opening to define a clearance between the base and the body. The clearance leads to a recess on one end of the body which cooperates with a recess on the other end of the body to define a shear line for the body. The body is cut out on the one end of the body adjacent the recess to define a secondary passage and a portion of the body is movable after shearing into engagement with the base to substantially take up the clearance. The cutout cooperates with the base to define a restriction for the secondary passage which communicates the accumulator with the pressure chamber.

摘要翻译： 阀组件设置在蓄液器和液压制动助力器中的压力室之间。 当压力室内的加压流体不足以在制动期间提供动力辅助时，阀组件用于将加压流体连通到压力室。 阀组件包括底座，该底座容纳在将蓄能器与压力室分开的壳体内。 基部限定通向壳体孔的开口，并且主体延伸到开口中以限定基部和主体之间的间隙。 间隙导致主体一端的凹槽，其与主体另一端上的凹槽配合，以限定主体的剪切线。 身体在身体的与凹部相邻的一端处被切出，以限定次级通道，并且主体的一部分在剪切与基座接合以基本上占据间隙之后是可移动的。 切口与基座配合以限定用于将蓄能器与压力室连通的次级通道。

公开(公告)号：US4844119A

公开(公告)日：1989-07-04

申请号：US274076

申请日：1988-11-21

申请人： Jack Martinic

发明人： Jack Martinic

IPC分类号： B60T8/36 ,  B60T8/50 ,  B60T13/68 ,  B60T15/02 ,  G01N30/02

CPC分类号： B60T15/028 ,  B60T13/686 ,  B60T8/3615 ,  G01N2030/025 ,  Y10T137/86622 ,  Y10T137/87217

摘要： A control valve (10) comprises a valve assembly (12) having a stepped bore (18) which communicates with a first inlet (30) from a master cylinder, a second inlet (40) from a pump, a first outlet (50) to a wheel brake, and a decay outlet (60) permitting fluid flow away from the first outlet (50) during decay of fluid pressure for anti-lock operation. A first valve element (31) comprises a reduced diameter section (20) extending into an enlarged diameter section (22) which is received within a correspondingly shaped enlarged diameter section (32) of the bore (18). The first valve element (31) includes a longitudinal through passage (35) with a restriction (43) therein, and a transverse fluid passage (37) which intersects the longitudinal through passage (35) and communicates with the enlarged diameter section (22) of the stepped bore (18). One end of the first valve element (31) comprises a valve seat (36) disposed adjacent a second valve element (70) that is operated by an actuator (14). A spring (80) extends between the first valve element (31) and second valve element (70) to bias the second valve element (70) toward a closed position at a valve seat (62) of the decay outlet (60). The first inlet (30) communicates fluid pressure from the master cylinder to the enlarged diameter section (22) of the bore (18) to effect fluid communication with the longitudinal through passage (35) separate from fluid pressure received from the pump and communicated through the second inlet (40) to a separate receiving chamber (44) defined between the enlarged diameter sections (22, 32) of the first valve element (31) and stepped bore (18).

摘要翻译： 控制阀（10）包括具有阶梯孔（18）的阀门组件（12），其从主缸与第一入口（30）连通，来自泵的第二入口（40），第一出口（50） 以及在用于防止锁定操作的流体压力衰减期间允许流体从第一出口（50）流出的衰减出口（60）。 第一阀元件（31）包括延伸到扩大直径部分（22）中的直径减小的部分（20），该部分容纳在孔（18）的相应形状的扩大直径部分（32）内。 第一阀元件（31）包括其中具有限制（43）的纵向通道（35）和与纵向通道（35）相交并与扩大直径部分（22）连通的横向流体通道（37） 的阶梯孔（18）。 第一阀元件（31）的一端包括邻近由致动器（14）操作的第二阀元件（70）设置的阀座（36）。 弹簧（80）在第一阀元件（31）和第二阀元件（70）之间延伸，以将第二阀元件（70）偏压到衰减出口（60）的阀座（62）处的关闭位置。 第一入口（30）将来自主缸的流体压力与孔（18）的扩大直径部分（22）连通，以使其与纵向通过通道（35）流体连通，与从泵接收的流体压力分开并传递通过 第二入口（40）连接到限定在第一阀元件（31）的扩大直径部分（22,32）和阶梯孔（18）之间的单独接收室（44）。

公开(公告)号：US4539892A

公开(公告)日：1985-09-10

申请号：US588430

申请日：1984-03-12

申请人： John E. Mackiewicz ,  Jack Martinic

发明人： John E. Mackiewicz ,  Jack Martinic

IPC分类号： B60T13/12 ,  B60T11/20 ,  B60T13/14 ,  F15B13/10 ,  F01B25/02

CPC分类号： B60T13/143

摘要： A hydraulic brake booster comprises a housing forming a pressure chamber and a pair of bores leading to the pressure chamber. One of the bores receives an output piston and the other bore receives a valve member. The valve member is movable by an input actuator to control communication of fluid pressure to the pressure chamber. The end of the valve member within the pressure chamber carries a sleeve and a poppet. The sleeve resiliently imparts movement to the valve member and the poppet cooperates with the sleeve to close communication to the pressure chamber in response to movement of the sleeve relative to the valve member.

摘要翻译： 液压制动助力器包括形成压力室的壳体和通向压力室的一对孔。 孔中的一个接收输出活塞，另一个孔容纳阀构件。 阀构件可通过输入致动器移动，以控制与压力室的流体压力的连通。 压力室内的阀构件的端部带有套筒和提升阀。 套筒弹性地向阀构件施加运动，并且提升阀与套筒配合以响应于套筒相对于阀构件的移动而与压力室关联连通。

公开(公告)号：US4250795A

公开(公告)日：1981-02-17

申请号：US918631

申请日：1978-06-23

申请人： Jack Martinic

发明人： Jack Martinic

IPC分类号： B60T13/12 ,  B60T13/16 ,  F15B11/08 ,  F15B13/042

CPC分类号： B60T13/162 ,  Y10T137/86702 ,  Y10T137/87177

摘要： The present invention relates to a hydraulic brake booster and a shuttle valve which is operable to limit the pressure communicated to a pressure chamber within the hydraulic brake booster. The shuttle valve is disposed within a control valve which is operator-actuated to communicate pressurized fluid to the pressure chamber so as to provide a power assist to braking via a piston responsive to pressurized fluid in the pressure chamber. The shuttle valve is exposed to the pressure chamber and movable relative to the control valve when the pressure in the pressure chamber is above a predetermined value in order to terminate or decrease communication of pressurized fluid to the pressure chamber. At the same time the shuttle valve cooperates with the control valve to reopen communication to an outlet as the control valve operates to close communication thereto during braking.

摘要翻译： 液压制动助力器和梭阀技术领域本发明涉及液压制动助力器和梭阀，其可操作以限制与液压制动助力器内的压力室相通的压力。 梭阀设置在操作者致动的控制阀内，以将加压流体传递到压力室，以便响应于压力室中的加压流体，经由活塞提供动力辅助以进行制动。 当压力室中的压力高于预定值时，梭阀暴露于压力室并相对于控制阀可移动，以便终止或减少加压流体与压力室的连通。 同时，当制动期间控制阀操作以闭合其连通时，梭阀与控制阀配合以重新打开与出口的通信。