公开(公告)号：US5207062A

公开(公告)日：1993-05-04

申请号：US920965

申请日：1992-07-28

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

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

IPC分类号： B60T11/20 ,  B60T11/232 ,  B60T11/26

CPC分类号： B60T11/232 ,  B60T11/20 ,  B60T11/26

摘要： A center-compensation master cylinder (10) has first (20) and second (30) pistons with center-compensation valve members (27, 37). The pistons (20, 30) have diametrically extending slots (22, 32) at central axial portions thereof through which extend pin members (53, 54) to effect opening of the valve members (27, 37) when the pistons (20, 30) are in at-rest positions. A first spring (29) extends between a head (24) of the first piston (20) and the second piston (30), and a second spring (39) extends between an end (15) of the bore 0 (I4) and the head (34) of the second piston (30). The first spring (29) is caged via a caging mechanism (60) ensuring that the first (20) and second (30) pistons will travel simultaneously when the center-compensation valve members (27,37) are closing. The caging mechanism (60) is adjustable to control accurately the location of the second piston (30 ) in an at-rest position. The caging mechanism comprises an end part (47) non-rotatably and axially coupled with longitudinal extensions (40) of the head (24) of the first piston (20), a member (65) adjustably coupled with a threaded end (47C) of the end part (47), and a head (66) of the member (65) abutting a cage end member (70) which seats at a back portion (31) of the second piston (30). The cage end member (70) is cup-shaped and includes a radially flared lip (74) providing a seat for one end of the first spring (29) while the other end of the first spring (29) is received at a diametral extension (28) of the first piston (20).

摘要翻译： 中心补偿主缸（10）具有具有中心补偿阀构件（27,37）的第一（20）和第二（30）活塞。 活塞（20,30）在其中心轴向部分处具有径向延伸的槽（22,32），当活塞（20,30）处于活塞（20,30）时，销子构件（53,54）延伸到阀构件（27,37） ）处于休息状态。 第一弹簧（29）在第一活塞（20）的头部（24）和第二活塞（30）之间延伸，第二弹簧（39）在孔0（I4）的端部（15）和 第二活塞（30）的头部（34）。 第一弹簧（29）通过笼式机构（60）笼定，确保当中心补偿阀构件（27,37）关闭时第一活塞（20）和第二活塞（30）同时运行。 起重机构（60）是可调节的，以便精确地控制第二活塞（30）处于静止位置的位置。 笼式机构包括不可旋转地并且轴向地与第一活塞（20）的头部（24）的延伸部（40）连接的端部（47），与螺纹端（47C）可调节地联接的构件（65） 和所述构件（65）的头部（66）抵靠在所述第二活塞（30）的后部（31）上的笼端构件（70）。 笼端构件（70）是杯形的，并且包括径向扩张的唇缘（74），其为第一弹簧（29）的一端提供座位，而第一弹簧（29）的另一端以直径延伸 （20）的所述第二活塞（28）。

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：US5313796A

公开(公告)日：1994-05-24

申请号：US93113

申请日：1993-07-16

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

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

IPC分类号： B60T11/16 ,  B60T11/232 ,  B60T11/26 ,  B60T13/52 ,  B60T13/56 ,  B60T13/565 ,  B60T13/20

CPC分类号： B60T11/26 ,  B60T11/232 ,  B60T13/565

摘要： A remote compensation valve (20) through which pressurized fluid from a master cylinder (14) is communicated to the wheel brakes (24, 26) of a vehicle. The compensation valve (20) has a housing (200) with a bore (202) therein for retaining a shuttle piston (210). The shuttle piston (210) has a first land (212) separated from a second land (214) by a groove (216) and an axial bore (218) connected to the groove (216) by a radial bore (224). A first spring (250) carried by the piston (210) urges a poppet valve (244) toward a seat (230) to control the communication of pressurized fluid through the axial bore (218) to an outlet port. A second spring (254) located in the housing (200) urges the piston (210) toward a rest position where the first land (212) engages a pin (234) of a tilt valve (232) to establish communication between the source of fluid and the bore (202) and the poppet valve (244) is seated on the piston (210) to prevent communication through the axial bore (218). A manual input force on a first end (262) of a movable stop pin (250) brings a second end (266) into engagement with the poppet valve (244) to initiate communication between the compensation port (206) and the master cylinder (14) to remove any air from the master cylinder (14).

摘要翻译： 远程补偿阀（20），来自主缸（14）的加压流体通过该远程补偿阀（20）与车辆的车轮制动器（24,26）连通。 补偿阀（20）具有其中具有孔（202）的壳体（200），用于保持梭式活塞（210）。 往复活塞（210）具有通过凹槽（216）与第二平台（214）分离的第一平台（212）和通过径向孔（224）连接到凹槽（216）的轴向孔（218）。 由活塞（210）承载的第一弹簧（250）将提升阀（244）朝向座位（230）推动以控制加压流体通过轴向孔（218）与出口端口的连通。 位于壳体（200）中的第二弹簧（254）将活塞（210）推向静止位置，其中第一平台（212）接合倾斜阀（232）的销（234），以在 流体，并且孔（202）和提升阀（244）位于活塞（210）上，以防止通过轴向孔（218）的连通。 在可移动止动销（250）的第一端（262）上的手动输入力使得第二端（266）与提升阀（244）接合以启动补偿端口（206）和主缸（ 14）去除主缸（14）中的任何空气。

公开(公告)号：US5161375A

公开(公告)日：1992-11-10

申请号：US788627

申请日：1991-11-05

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

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

IPC分类号： B60T11/16 ,  B60T11/20 ,  B60T11/22

CPC分类号： B60T11/20

摘要： A caging arrangement for limiting the extension of springs in a bore. The caging arrangement includes cylindrical members which are connected to pistons in a master cylinder. The cylindrical members which are joined to the pistons and communicates the force of piston return springs to urge the pistons toward a rest positions while a valve return springs retained by the cylindrical members urges valves toward stops to control fluid communication between a reservoir and pressure chambers associated with the pistons.

摘要翻译： 一种用于限制孔中弹簧延伸的闭合装置。 笼式装置包括在主缸中连接到活塞的圆柱形构件。 圆柱形构件连接到活塞并传递活塞复位弹簧的力，以将活塞推向静止位置，同时由圆柱形构件保持的阀复位弹簧将阀朝向止动件推动以控制储存器与压力室之间的流体连通 与活塞。

公开(公告)号：US5279125A

公开(公告)日：1994-01-18

申请号：US986813

申请日：1992-12-08

申请人： Hugh E. Keyes ,  Robert K. Wilson ,  Donald A. Crumb

发明人： Hugh E. Keyes ,  Robert K. Wilson ,  Donald A. Crumb

IPC分类号： B60T11/20 ,  B60T11/232 ,  F16B7/20 ,  B60T17/16

CPC分类号： B60T11/232 ,  B60T11/20

摘要： Structure for caging a return spring of a master cylinder to define limits for an operational chamber. The structure includes a first cylindrical member which engages a first piston and a second cylindrical member which engages a second piston with the return spring being located between the first and second cylindrical members. A stud which has an irregular shaped end member is retained in a groove in the second piston by the second cylindrical member and mated with a head member to define the limits for the return spring between the first and second cylindrical members and correspondingly the maximum size of the chamber within a bore of a master cylinder.

摘要翻译： 用于笼罩主缸的复位弹簧的结构，以定义操作室的限制。 该结构包括与第一活塞接合的第一圆柱形构件和与第二活塞接合的第二圆柱形构件，复位弹簧位于第一和第二圆柱形构件之间。 具有不规则形状的端部构件的螺柱通过第二圆柱形构件保持在第二活塞的凹槽中并与头部构件配合以限定第一和第二圆柱形构件之间的复位弹簧的限制，并且相应地限制第一和第二圆柱形构件的最大尺寸 在主缸的孔内的腔室。

公开(公告)号：US5214917A

公开(公告)日：1993-06-01

申请号：US944615

申请日：1992-09-14

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

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

IPC分类号： B60T11/20 ,  B60T11/232

CPC分类号： B60T11/232

摘要： The master cylinder (30) includes primary and secondary pistons (42, 52) each of which has a center compensation valve member (44, 60). An abutment member or pin (38, 40) extends across a bore (36) of the master cylinder (30) adjacent ends of each of the pistons (42, 52) and the pins (38, 40) are each engaged by shafts (45, 64) of the spring biased valve members (44, 60) of the primary and secondary pistons (42, 52). An output rod (43) of a vacuum booster (41) to which the master cylinder (30) is attached disposes the primary piston (52) slightly spacedapart from the respective pin (40) in an at-rest position. The primary piston (52) includes a self-adjusting compensation center valve seat (70) located within the primary piston (52), the valve seat (70) sealingly and slidingly movable relative to the primary piston (52). The valve seat (70) extends through a rear opening (59) of the piston (52) to engage the respective pin (40). The engagement of the valve seat (70) and shaft (64) of the valve member (60) ensures that the valve head (62) is always positioned a predetermined distance (C) from the valve seat (70) in the at-rest position of the primary piston (52). The brake pedal "feel" can be closely controlled to minimize soft pedal feel during brake actuation by minimizing stackup tolerances within the master cylinder (30) such that the valve member (60) of the primary piston (52) closes very quickly.

摘要翻译： 主缸（30）包括主活塞（42）和第二活塞（52），每个活塞具有中心补偿阀构件（44,46）。 邻接构件或销（38,40）跨越主缸（30）的孔（36）延伸，邻​​近每个活塞（42,42）的端部，并且销（38,40）各自与轴（ 所述主活塞和所述第二活塞（42,52）的所述弹簧偏压阀构件（44,46）中的所述弹簧偏压阀构件（44,46）。 安装有主缸（30）的真空助力器（41）的输出杆（43）将主活塞（52）与相应的销（40）稍微间隔开，处于静止位置。 主活塞（52）包括位于主活塞（52）内的自调整补偿中心阀座（70），阀座（70）相对于主活塞（52）可密封地且可滑动地移动。 阀座（70）延伸穿过活塞（52）的后开口（59）以接合相应的销（40）。 阀座（70）和阀构件（60）的轴（64）的接合确保了阀头（62）在静止时始终位于与阀座（70）预定距离（C） 主活塞（52）的位置。 制动踏板“感觉”可被紧密地控制，以通过最小化主缸（30）内的堆叠公差来最小化制动器致动期间的软踏板感觉，使得主活塞（52）的阀构件（60）非常快地关闭。

公开(公告)号：US4995676A

公开(公告)日：1991-02-26

申请号：US450359

申请日：1989-12-08

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

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

IPC分类号： B60T8/26 ,  B60T11/34 ,  B60T17/22

CPC分类号： B60T11/34 ,  B60T17/226 ,  B60T8/26 ,  B60T8/265

摘要： The positioning ring (44) for a hydraulically operated warning device (80) may be utilized for any hydraulically movable piston or sleeve (52) which, when properly assembled, causes a warning device (80) to effect an initial mode of response. The positioning ring (44) has a reduced inner diameter portion (41) separated from an enlarged inner diameter portion (43) by way of a radial shoulder (42). The enlarged inner diameter portion (43) abuts a shoulder (17) of a surrounding housing (11) and the radial shoulder (42) abuts a shoulder (59) of the piston or sleeve (52). The housing (11) may contain a warning device (80) which engages the piston or sleeve (52) such that if the piston or sleeve (52) is displaced in an axial direction the warning device (80) is operated. Should the centering ring (44) be mis-assembled or not included in the assembly, either the misassembled positioning ring (44) or the lack of the positioning ring ( 44) permits the piston or sleeve (52) to be moved to a position where the warning device (80) is operated to provide an indication that the positioning ring (44) is either misassembled or missing from the assembly.

摘要翻译： 用于液压操作的警告装置（80）的定位环（44）可以用于任何液压可移动的活塞或套筒（52），当适当地组装时，其使警告装置（80）实现初始的响应方式。 定位环（44）具有通过径向肩部（42）与扩大的内径部分（43）分离的减小的内径部分（41）。 扩大的内径部分（43）邻接周围的壳体（11）的肩部（17）并且径向肩部（42）邻接活塞或套筒（52）的肩部（59）。 壳体（11）可以包含与活塞或套筒（52）接合的警告装置（80），使得如果活塞或套筒（52）在轴向方向上移动，则警告装置（80）被操作。 如果定心环（44）错误组装或不包括在组件中，则组装好的定位环（44）或定位环（44）的缺少允许活塞或套筒（52）移动到位置 其中操作警告装置（80）以提供定位环（44）从组件中被错误组装或丢失的指示。

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：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。