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公开(公告)号：US06216457B1
公开(公告)日：2001-04-17
申请号：US09191965
申请日：1998-11-13
IPC分类号： B60T1300
CPC分类号： B60T8/3265 , B60T7/042 , B60T8/328 , B60T8/3665 , B60T8/441 , B60T8/447 , B60T8/4845 , B60T13/148 , B60T13/686 , B60T15/028
摘要： A vehicle hydraulic system is disclosed comprising a hydraulic fluid reservoir; a pressure force supplying pressurized hydraulic fluid to a discharge header; a fluid conduit between the discharge header and the reservoir; a back pressure valve operative in the fluid conduit to maintain a desired pressure in the discharge header; and a vehicle braking system having a hydraulically operated boost piston assembly for supplementing a force exerted by a vehicle operator to operate brakes of the vehicle braking system. The system further includes a boost pressure control valve responsive to an input from the vehicle operator for selectively directing pressured hydraulic fluid from the discharge header to the boost piston assembly and venting hydraulic fluid from the boost piston assembly to the reservoir.
摘要翻译： 公开了一种车辆液压系统，其包括液压油箱; 将加压液压流体供应到排出集管的压力; 在排放集管和储存器之间的流体导管; 操作在流体管道中的背压阀，以在排放集管中保持期望的压力; 以及车辆制动系统，其具有用于补充由车辆操作者施加的力来操作车辆制动系统的制动器的液压操作的增压活塞组件。 该系统还包括响应于来自车辆操作者的输入的增压压力控制阀，用于选择性地将加压液压流体从排出集管传递到升压活塞组件，并将液压流体从升压活塞组件排出到储存器。
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公开(公告)号：US4041990A
公开(公告)日：1977-08-16
申请号：US673831
申请日：1976-04-05
申请人： Louis S. Tang , Dean E. Runkle , Lloyd G. Bach
发明人： Louis S. Tang , Dean E. Runkle , Lloyd G. Bach
CPC分类号： B60T17/22 , B60T13/148 , F15B1/24 , F16L55/04 , F15B2201/205 , F15B2201/312 , F15B2201/411 , F15B2201/515 , Y10S277/917
摘要： An accumulator for use in a brake booster having a housing with a piston located in a bore. The piston has a plug attached thereto. The piston moves in response to a predetermined thermal expansion of a fluid in the accumulator. A predetermined movement shears the plug from the piston to prevent damage to the housing by venting the bore to a reservoir.
摘要翻译： 一种用于制动助力器的蓄能器，其具有壳体，活塞位于孔中。 活塞具有附接到其上的塞子。 活塞响应于蓄能器中的流体的预定热膨胀而移动。 预定的运动通过将孔排放到储存器中来从活塞剪切塞子以防止损坏壳体。
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公开(公告)号：US4296671A
公开(公告)日：1981-10-27
申请号：US114799
申请日：1980-01-24
申请人： Louis S. Tang
发明人： Louis S. Tang
CPC分类号： B60T13/162
摘要： A hydraulic brake booster defines a pressure chamber (24) and includes a control valve (26). A sleeve (40) on the control valve includes a spacer (58) and the control valve includes an annular member (60). The spacer is engageable with a booster housing (14) to limit movement of the sleeve and the annular member is engageable with an accumulator valve assembly (32) during a failure mode to provide a safety power assist. The spacer is also maintained in spaced relation to the accumulator valve assembly.
摘要翻译： 液压制动助力器限定了压力室（24）并且包括控制阀（26）。 控制阀上的套筒（40）包括间隔件（58），并且控制阀包括环形构件（60）。 间隔件可与增压器壳体（14）接合以限制套筒的移动，并且环形构件可在故障模式期间与蓄能器阀组件（32）接合以提供安全动力辅助。 间隔件也保持与蓄能器阀组件间隔开。
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公开(公告)号：US4281585A
公开(公告)日：1981-08-04
申请号：US112508
申请日：1980-01-16
CPC分类号： B60T13/144 , B60T13/143 , B60T13/148
摘要： A hydraulic brake booster includes a housing which defines a pressure chamber and a piston within the housing is movable in response to pressurized fluid within the pressure chamber to effectuate a brake application. The piston encloses a storage chamber and forms a passage communicating the storage chamber with the pressure chamber. A valve member is disposed within the passage to control communication between the storage chamber and the pressure chamber. An operator actuator cooperates with a control valve to communicate pressurized fluid to the pressure chamber and a finger is actuated by the operator actuator to engage the valve member, thereby opening communication between the storage chamber and the pressure chamber. The valve member comprises a unitary assembly having a sleeve sealingly engaging the wall of the piston passage, a seat member biased into engagement with a shoulder defined by a stepped bore on the sleeve, and a stem extending through a bore on the seat member.
摘要翻译： 液压制动助力器包括限定压力室的壳体，并且壳体内的活塞响应于压力室内的加压流体而可移动以实现制动施加。 活塞包围存储室并且形成将储存室与压力室连通的通道。 阀构件设置在通道内以控制存储室和压力室之间的连通。 操作者致动器与控制阀配合以将加压流体传送到压力室，并且手指由操作者致动器致动以接合阀构件，从而打开储存室和压力室之间的连通。 阀构件包括整体组件，其具有密封地接合活塞通道的壁的套筒，偏置成与由套筒上的阶梯孔限定的肩部接合的座构件，以及延伸穿过座椅构件上的孔的杆。
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公开(公告)号：US4212166A
公开(公告)日：1980-07-15
申请号：US904946
申请日：1978-05-11
申请人： Louis S. Tang
发明人： Louis S. Tang
CPC分类号： B60T13/148 , B60T13/143
摘要： A hydraulic brake booster includes a housing which substantially defines a pressure chamber and the housing slidably supports a control valve for communicating pressurized fluid to the pressure chamber. A piston is movably disposed within the housing to move in response to pressurized fluid within the pressure chamber and the piston substantially defines a storage chamber located inside the piston. A charging valve communicates pressurized fluid to the storage chamber and a relief valve vents the storage chamber to the pressure chamber when the pressure stored in the storage chamber is above a predetermined value. An input member cooperates with the piston to define an actuating cavity which communicates with the relief valve so that the input member is movable relative to the piston to pressurize the actuating cavity which causes the relief valve to open communication between the storage chamber and the pressure chamber.
摘要翻译： 液压制动助力器包括基本上限定压力室的壳体，并且壳体可滑动地支撑用于将加压流体连通到压力室的控制阀。 活塞可移动地设置在壳体内以响应于压力室内的加压流体而移动，并且活塞基本上限定位于活塞内部的储存室。 当存储在储存室中的压力高于预定值时，充气阀将加压流体连通到储存室，并且溢流阀将储存室通向压力室。 输入构件与活塞协作以限定与减压阀连通的致动腔，使得输入构件相对于活塞可移动以对致动腔加压，从而使安全阀打开储存室和压力室之间的连通 。
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公开(公告)号：US06178747B2
公开(公告)日：2001-01-30
申请号：US09334007
申请日：1999-06-15
申请人： Louis S. Tang
发明人： Louis S. Tang
IPC分类号： B60T1126
CPC分类号： B60T11/26
摘要： A reservoir including a housing having a chamber formed therein for the storage of hydraulic brake fluid. The chamber is in fluid communication with a master cylinder. The housing has an opening which is in communication with the atmosphere. The housing further including a passageway in communication with the cavity and the opening. A membrane is disposed in the passageway of the housing. The membrane has oleophobic properties such that the membrane permits the passage of air therethrough and substantially prevents the passage of brake fluid therethrough.
摘要翻译： 一种储存器，包括具有形成在其中用于储存液压制动流体的室的壳体。 室与主缸流体连通。 外壳具有与大气连通的开口。 壳体还包括与空腔和开口连通的通道。 膜被设置在壳体的通道中。 膜具有疏油性，使得膜允许空气通过，并且基本上防止制动流体通过其中。
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