公开(公告)号：US5946914A

公开(公告)日：1999-09-07

申请号：US182622

申请日：1998-10-29

申请人： Donald A. Crumb ,  Thad A. Nevitt

发明人： Donald A. Crumb ,  Thad A. Nevitt

IPC分类号： B60T11/26 ,  F15B7/00

CPC分类号： B60T11/26

摘要： A master cylinder having a first housing with an axial bore therein which is connected to a second housing of a reservoir. The axial bore has a first replenishing port surrounded by a first boss and a second replenishing port surrounded by a second boss. A first radial bore in the first boss extends from the first replenishing port while a second radial bore in the second boss extends from the second replenishing port. First and second spigots which extends from the second housing are respectively located in the first and second radial bores to provide first and second flow communication paths from the reservoir to the axial bore. The first housing is secured to the second housing by a connecting arrangement characterized by a first pin that extends through the first boss and first spigot and a second pin that extends through the second boss and the second spigot to respectively retain first and second seals within the first and second radial bores without the introduction of side load forces which may provide a leak path between either the first or second flow communication paths and the surrounding environment.

摘要翻译： 主缸，具有其中具有轴向孔的第一壳体，其连接到储存器的第二壳体。 轴向孔具有由第一凸起围绕的第一补充口和由第二凸起围绕的第二补充口。 第一凸台中的第一径向孔从第一补充口延伸，而第二凸台中的第二径向孔从第二补充口延伸。 从第二壳体延伸的第一和第二插口分别位于第一和第二径向孔中，以提供从储存器到轴向孔的第一和第二流动连通路径。 第一壳体通过连接装置固定到第二壳体，该连接装置的特征在于延伸穿过第一凸台和第一插口的第一销和延伸穿过第二凸台和第二插口的第二销，以分别将第一和第二密封件保持在内 第一和第二径向孔，而不引入可能在第一或第二流动连通路径和周围环境之间提供泄漏路径的侧向载荷力。

公开(公告)号：US5329769A

公开(公告)日：1994-07-19

申请号：US93112

申请日：1993-07-16

申请人： Robert K. Wilson ,  Donald A. Crumb

发明人： Robert K. Wilson ,  Donald A. Crumb

IPC分类号： B60T13/40 ,  B60T11/232 ,  B60T13/565 ,  B60T13/20

CPC分类号： B60T13/565 ,  B60T11/232

摘要： A brake system (10) having a master cylinder (14) connected to wheel brakes (24, 26) of a vehicle through remote compensation valves (20, 22). The master cylinder (14) has a two piece housing (66, 84) with a bore (74, 86) therein. First (32) and second (34) pistons are located in the bore (74, 96) by a sleeve and bearing arrangement (98, 82). Return springs (104, 110) in the bore (74, 96) position the first (32) and second (34) piston to define first (106) and second (114) chambers in the master cylinder (14). The two piece housing has first (22) and second (90) flanges that are joined together by hook (94, 94', 94", 94'") and slots (73, 73', 73", 73'") to form a unitary structure and by bolts (47, 47') which further compress seals (102) by joining the first flange (72) to a brake booster (12) to assure that the bore (114) is sealed from the surrounding environment.

摘要翻译： 一种制动系统（10），其具有通过远程补偿阀（20,22）连接到车辆的车轮制动器（24,26）的主缸（14）。 主缸（14）具有其中具有孔（74,86）的两件式壳体（66,84）。 第一（32）和第二（34）活塞通过套筒和轴承装置（98,82）位于孔（74,96）中。 在孔（74,96）中的回流弹簧（104,110）定位第一（32）和第二（34）活塞，以在主缸（14）中限定第一（106）和第二（114）腔室。 两件式外壳具有通过钩（94,94'，94“，94”“）和槽（73,73'，73”，73“）连接在一起的第一（22）和第二（90） “）以形成整体结构，并且通过将第一凸缘（72）连接到制动助力器（12）进一步压缩密封件（102）的螺栓（47,47'）以确保孔（114）被密封 周边环境。

公开(公告)号：US5144976A

公开(公告)日：1992-09-08

申请号：US751428

申请日：1991-08-28

申请人： Donald A. Crumb

发明人： Donald A. Crumb

IPC分类号： B60T8/26 ,  B60T11/16 ,  F16K1/00

CPC分类号： B60T11/16 ,  B60T8/265 ,  Y10T137/7835

摘要： The vented screw-in proportioning valve (30) of the present invention comprises a proportioning valve body (32) having threads (36) on the proportioning valve body (32) connected with threads (23) of a master cylinder boss (22). A stepped bore (38) of the proportioning valve body (32) includes a differential area piston which is generally U-shaped, a pair of seal members (52, 54) located axially spaced-apart and disposed about the piston (40) in order to define a vented chamber (60), a vent (62) extending through the proportioning valve body (32) and communicating with the vented chamber (60), a snap ring (70) located adjacent an inlet (34) of the proportioning valve body (32), a retainer (80) spring-biased into engagement with the snap ring (70), a spring (90) disposed between the retainer (80) and an interior cavity (42) of the piston (40) in order to bias the piston (40) toward the outlet (33), and a fluid seal (50) disposed adjacent a head (46) of the piston (40).

摘要翻译： 本发明的排气螺旋式配比阀（30）包括一个比例阀体（32），该比例阀体（32）在与母缸凸台（22）的螺纹（23）连接的比例阀体（32）上具有螺纹（36）。 比例阀体（32）的阶梯孔（38）包括一个大致为U形的差动区域活塞，一对密封件（52,54），轴向隔开并围绕活塞（40）设置 定义通气室（60），延伸穿过比例阀体（32）并与通气室（60）连通的通风口（62），邻近配料的入口（34）定位的卡环（70） 阀体（32），弹簧偏置成与卡环（70）接合的保持器（80），设置在保持器（80）和活塞（40）的内腔（42）之间的弹簧（90） 以便将活塞（40）偏压到出口（33），以及邻近活塞（40）的头部（46）设置的流体密封件（50）。

公开(公告)号：US4821519A

公开(公告)日：1989-04-18

申请号：US67514

申请日：1987-06-29

申请人： Robert F. Gaiser ,  John E. Steer ,  Donald A. Crumb

发明人： Robert F. Gaiser ,  John E. Steer ,  Donald A. Crumb

IPC分类号： B60T8/26 ,  B60T11/16 ,  B60T11/34

CPC分类号： B60T8/265 ,  B60T11/16 ,  B60T11/34

摘要： The proportioning valve assembly (40, 140) may be screwed into a complementary-shaped opening in a master cylinder (10). The valve assembly (40, 140) includes a differential area piston (50, 150) biased by a spring (70, 170) toward the outlet (21, 121) which communicates with the rear brakes. The master cylinder (10) includes a pair of passageways (16, 18) which communicate primary fluid pressure and secondary fluid pressure directly to the differential area piston (50, 150) of the proportioning valve assembly (40, 140) to displace the piston (50, 150) to a balanced position. If there is a failure of pressure in the primary brake circuit, the proportioning valve assembly (40, 140) actuates the differential area piston (50, 150) to permit fluid flow to bypass the piston (50, 150) and be communicated directly to the rear brakes of the vehicle.

摘要翻译： 比例阀组件（40,140）可以拧入主缸（10）中的互补形状的开口中。 阀组件（40,140）包括通过与后制动器连通的出口（21,121）偏置的弹簧（70,170）的差动区域活塞（50,150）。 主缸（10）包括一对通道（16,18），其将初级流体压力和次级流体压力直接连接到比例阀组件（40,140）的差动区域活塞（50,150），以使活塞 （50,150）到平衡位置。 如果主制动回路中存在压力失败，则比例阀组件（40,140）致动差动区域活塞（50,150），以允许流体流动绕过活塞（50,150）并直接连通 车辆的后制动器。

公开(公告)号：US4559781A

公开(公告)日：1985-12-24

申请号：US546774

申请日：1983-10-31

申请人： John E. Steer ,  Donald A. Crumb

发明人： John E. Steer ,  Donald A. Crumb

IPC分类号： B60T11/16 ,  B60T11/18 ,  B60T11/20 ,  B60T11/224

CPC分类号： B60T11/224 ,  B60T11/20 ,  Y10S277/91

摘要： A master cylinder includes a housing with a pair of pistons movable therein to develop fluid pressure in a pair of pressure chambers. One of the pistons carries a seal assembly in order to provide a fast-fill feature. The seal assembly engages a large diameter section during initial braking and separates therefrom after a predetermined fluid pressure level is reached so that the one piston moves relative to a small diameter section to continue fluid pressure buildup during braking.

摘要翻译： 主缸包括具有可在其中移动的一对活塞的壳体，以在一对压力室中形成流体压力。 其中一个活塞携带密封组件以提供快速填充特征。 密封组件在初始制动期间接合大直径部分并在达到预定流体压力水平之后与其分离，使得一个活塞相对于小直径部分移动以在制动期间继续流体压力积聚。

公开(公告)号：US5136847A

公开(公告)日：1992-08-11

申请号：US722040

申请日：1991-06-27

申请人： Richard A. Zander ,  Donald A. Crumb

发明人： Richard A. Zander ,  Donald A. Crumb

IPC分类号： B60T11/26

CPC分类号： B60T11/26

摘要： A cap for a reservoir of a master cylinder having a disc member with a plurality of perpendicular guides located on a fixed radius from the center of the disc member for aligning a cylindrical body secured thereto. The cylindrical body has an annular flange with a tapered peripheral surface thereon extending from an edge of a shoulder formed adjacent the annular flange. A diaphragm has an annular base connected to an apex section by a first conical leg and a center section connected to the apex section by a second conical leg. The diaphragm has a plurality of ribs that engage the disc member when an annular lip is located on a shoulder of the cylindrical body. When inwardly projecting tabs on the annular edge of the disc engage corresponding arcuate projections extending from the cylindrical neck to fix the cap to the reservoir, the tapered peripheral surface on the flange of the cylindrical member engage the first conical leg to provide a radial force which urges the first conical leg into engagement with the cylindrical neck of the reservoir to form the primary sealing for the reservoir while the plurality of ribs are compressed between the disc and and top of the cylindrical neck to from the secondary sealing for the reservoir.

摘要翻译： 用于主缸的容器的盖，其具有盘构件，所述盘构件具有多个垂直的引导件，所述多个垂直引导件位于与盘构件的中心固定的半径上，用于使固定到其上的圆柱体对准。 圆柱形主体具有环形凸缘，其上具有锥形周向表面，其从邻近环形凸缘形成的肩部的边缘延伸。 隔膜具有通过第一锥形腿连接到顶点部分的环形基部和通过第二锥形腿连接到顶点部分的中心部分。 当环形唇缘位于圆柱体的肩部上时，隔膜具有多个与盘构件接合的肋。 当在盘的环形边缘上向内突出的突片接合从圆柱形颈部延伸的相应弓形突起以将盖固定到储存器时，圆柱形构件的凸缘上的锥形外周表面接合第一锥形支腿以提供径向力， 促使第一锥形腿与储存器的圆柱形颈部接合以形成用于储存器的主要密封件，同时多个肋在盘和圆柱形颈部顶部之间被压缩以从储存器的次级密封件压缩。

公开(公告)号：US5016442A

公开(公告)日：1991-05-21

申请号：US385502

申请日：1989-07-27

申请人： Richard A. Zander ,  Robert F. Gaiser ,  Donald A. Crumb

发明人： Richard A. Zander ,  Robert F. Gaiser ,  Donald A. Crumb

IPC分类号： B60T11/22 ,  B60T17/22 ,  G01F23/74 ,  G01L19/12 ,  H01H35/38 ,  H01H36/00

CPC分类号： G01F23/74 ,  B60T11/22 ,  B60T17/226 ,  G01L19/12 ,  H01H35/38 ,  H01H36/0006

摘要： A master cylinder having a housing with a first bore therein for retaining a pair of pistons which move in response to an input force and develop fluid pressure to effect a brake application. A second bore in the housing carries a differential area piston connected to the pressure chambers. A reed switch retained in the housing is aligned with a first magnet located on a float in a reservoir and a second magnet is attached to the differential area piston. A ferromagnetic shield located between the reed switch and second magnet has first and second openings located in a plane on either side of the reed switch. Should a failure occur in either pressure chamber, the differential area piston moves to allow magnetic field to pass through the openings in the shield and activate the reed switch to develop a warning signal and inform an operator of a failure mode condition in the master cylinder.

摘要翻译： 主缸，其具有壳体，其中具有第一孔，用于保持一对响应于输入力移动的活塞并且产生流体压力以实现制动施加。 壳体中的第二孔承载连接到压力室的差动区域活塞。 保持在壳体中的簧片开关与位于储存器中的浮子上的第一磁体对准，并且第二磁体附接到差动区域活塞。 位于舌簧开关和第二磁体之间的铁磁屏蔽具有位于舌簧开关两侧的平面中的第一和第二开口。 如果两个压力室都发生故障，则差动区域活塞移动以允许磁场穿过屏蔽中的开口，并激活簧片开关以产生警告信号，并通知操作者主缸中的故障模式状态。

公开(公告)号：US4903387A

公开(公告)日：1990-02-27

申请号：US227946

申请日：1988-08-03

申请人： John E. Steer ,  Donald A. Crumb ,  Richard A. Zander

发明人： John E. Steer ,  Donald A. Crumb ,  Richard A. Zander

IPC分类号： B60T8/26

CPC分类号： B60T8/265 ,  Y10T137/7808 ,  Y10T137/7834 ,  Y10T29/49314 ,  Y10T29/49412

摘要： The unitary poppet valve assembly (50) comprises an annular retainer (52) having an open end (54) and an opposite end (55) with a small diameter opening (56) therein. The annular retainer (52) has a plurality of fingers (58) extending laterally therefrom for engagement with the body (12) of a proportioning valve assembly (10). A poppet (70) comprises a poppet head (72) extending radially outwardly from a longitudinal shaft (74), and an oppositely disposed abutment (76). The shaft (74) extends slidably through the small diameter opening (56) in the annual retainer (52), the abutment (76) engaging the retainer (52) adjacent the opening (56). A spring (60) is disposed between a corner or shoulder (57) of the annular retainer (52) and a shoulder (77) defined between the poppet head (72) and poppet shaft (74). The poppet (70) includes a central through opening (78) extending through the abutment (76) and to the head (72), wherein the opening (78) communicates with a lateral through opening (80) of the shaft (74). The unitary poppet valve assembly (50) may be inserted directly within an inlet opening (13) of the proportioning valve assembly (10) so that the fingers (58) engage the body (12) of the proportioning valve assembly (10).

摘要翻译： 整体式提升阀组件（50）包括具有开口端（54）和在其中具有小直径开口（56）的相对端（55）的环形保持器（52）。 环形保持器（52）具有从其横向延伸的多个指状物（58），用于与配比阀组件（10）的主体（12）接合。 提升阀（70）包括从纵向轴（74）径向向外延伸的提升头（72）和相对设置的支座（76）。 轴（74）可滑动地延伸穿过年度保持器（52）中的小直径开口（56），邻接件（76）与邻近开口（56）的保持器（52）接合。 弹簧（60）设置在环形保持器（52）的角部或肩部（57）和限定在提升头（72）和提升轴（74）之间的肩部（77）之间。 提升头（70）包括延伸通过邻接部（76）和头部（72）的中心通孔（78），其中开口（78）与轴（74）的横向通过开口（80）连通。 整体式提升阀组件（50）可以直接插入在配比阀组件（10）的入口（13）内，使得指状物（58）接合配比阀组件（10）的主体（12）。

公开(公告)号：US4815292A

公开(公告)日：1989-03-28

申请号：US160784

申请日：1988-02-18

申请人： Robert F. Gaiser ,  Donald A. Crumb ,  William F. Dillon, Jr.

发明人： Robert F. Gaiser ,  Donald A. Crumb ,  William F. Dillon, Jr.

IPC分类号： B60T8/26 ,  B60T8/18 ,  B60T11/16 ,  B60T11/20 ,  B60T11/224 ,  B60T11/34 ,  B60T11/32 ,  F15B7/00

CPC分类号： B60T11/16 ,  B60T11/20 ,  B60T11/34 ,  B60T8/1831 ,  B60T8/1881 ,  B60T8/26 ,  B60T8/265

摘要： The proportioning valve assembly may be screwed into a complementary-shaped opening in a master cylinder. The valve assembly includes a differential area piston biased by a spring toward the outlet which communicates with the rear brakes. The master cylinder includes a pair of passageways which communicate primary fluid pressure and secondary fluid pressure directly to the differential area piston of the proportioning valve assembly to displace the piston to a balanced position. If there is a failure of pressure in the primary brake circuit, the proportioning valve assembly actuates the differential area piston to permit fluid flow to bypass the piston and be communicated directly to the rear brakes of the vehicle. Upon failure, a differential area sleeve surrounding the piston moves to actuate an electrical failure warning switch.

摘要翻译： 配比阀组件可以拧入主缸中的互补形状的开口中。 阀组件包括一个由弹簧偏压到与后制动器连通的出口的差动区域活塞。 主缸包括一对通道，其将初级流体压力和次级流体压力直接传递到比例阀组件的差动区域活塞，以将活塞移动到平衡位置。 如果主制动回路中存在压力失败，则比例阀组件致动差动区域活塞以允许流体流动绕过活塞并直接连接到车辆的后制动器。 当故障时，围绕活塞的差动区域套筒移动以致动电故障警告开关。

公开(公告)号：US4407121A

公开(公告)日：1983-10-04

申请号：US258827

申请日：1981-04-29

申请人： Donald A. Crumb

发明人： Donald A. Crumb

IPC分类号： B60T11/20 ,  B60T11/28

CPC分类号： B60T11/28 ,  B60T11/20

摘要： A dual master cylinder (10) includes a pair of pistons (62, 106) moving in a bore (14) to contract a pair of pressure chambers (64, 108). A housing 12 defines a pair of inlets (26, 28) communicating liquid from a reservoir (18) into the pair of pressure chambers (64, 108). A pair of outlets (46, 48) communicate liquid from the pair of pressure chambers (64, 108) to a pair of brake systems (50, 52). A pair of tilt valves (34, 36) control liquid communication through the inlets (26, 28). The pair of pistons (62, 106) carry a pair of valve actuators (182, 210) which open and close the pair of tilt valves (34, 36) in response to movement of the pair of pistons (62, 106) within the housing (12). The pair of actuators (182, 210) cooperate with one another to simultaneously close the pair of tilt valves (34, 36) during a brake application.

摘要翻译： 双主缸（10）包括一对活塞（62,106），其在孔（14）中移动以收缩一对压力室（64,108）。 壳体12限定将液体从储存器（18）连通到一对压力室（64,108）中的一对入口（26,28）。 一对出口（46,48）将来自一对压力室（64,108）的液体传送到一对制动系统（50,52）。 一对倾斜阀（34,36）通过入口（26,28）控制液体连通。 一对活塞（62,106）承载一对阀致动器（182,210），其响应于所述一对活塞（62,106）在所述一对活塞（62,106）内的运动而打开和关闭所述一对倾斜阀（34,36） 住房（12）。 一对致动器（182,210）在制动施加期间相互配合以同时闭合该对倾斜阀（34,36）。