公开(公告)号：US4131125A

公开(公告)日：1978-12-26

申请号：US802218

申请日：1977-05-31

申请人： Christian Tanguy

发明人： Christian Tanguy

IPC分类号： B60T13/14 ,  B62D5/07 ,  F15B1/027 ,  G05D16/10

CPC分类号： B60T13/148 ,  B62D5/07 ,  F15B1/027 ,  G05D16/10 ,  Y10T137/2617 ,  Y10T137/2663

摘要： An accumulator charging valve has a housing with an inlet and two outlet orifices respectively connected to the pump outlet, to a fluid accumulator and to an open center hydraulic circuit. A main passage is provided between the inlet orifice and the second outlet orifice, with a movable valve member mounted in the main passage, and operated by a differential piston having a face of smaller diameter exposed to the pressure prevailing at the inlet orifice and a face of larger diameter projecting into a control chamber, forming a resilient variable volume enclosure. A leakage passage is provided between the inlet orifice and a low pressure reservoir and has a first portion with an orifice of restricted cross-section situated between the inlet orifice and control chamber, and a second portion also with an orifice of restricted cross-section situated between the control chamber and the reservoir. The first portion comprises pilot means for permitting or interrupting the flow through the leakage passage as a function of the pressure level prevailing in the chamber of the accumulator.

摘要翻译： 蓄能器充气阀具有壳体，其具有分别连接到泵出口的入口和两个出口孔，流体储存器和开放的中心液压回路。 主通道设置在入口孔和第二出口孔之间，可移动阀构件安装在主通道中，并由具有暴露于入口孔处的压力的较小直径面的差动活塞操作， 更大的直径突出到控制室中，形成弹性可变容积的外壳。 在入口孔口和低压储存器之间设有泄漏通道，并具有位于入口孔口和控制室之间的具有限制横截面的孔口的第一部分，以及具有限定横截面的孔口的第二部分 在控制室和储存器之间。 第一部分包括用于允许或中断通过泄漏通道的流量的先导装置，作为蓄能器的腔室中的压力水平的函数。

公开(公告)号：US4075848A

公开(公告)日：1978-02-28

申请号：US656072

申请日：1976-02-06

申请人： Atsumi Ueda

发明人： Atsumi Ueda

IPC分类号： B60T13/12 ,  B60T13/14

CPC分类号： B60T13/148

摘要： A hydraulic brake booster of the type utilizing pressurized fluid supplied to a hydraulic power steering device, wherein a flow regulating valve is adapted to rapidly increase the pressure in a power chamber of the booster in response to actuation of the booster and another flow regulating valve is adapted to ensure supply of the pressurized fluid to the power steering device, and wherein an accumulator is adapted to surely operate the booster even when pressure supply to the power chamber from the fluid pressure source is accidentally blocked or stopped.

摘要翻译： 一种利用供应给液压动力转向装置的加压流体的液压制动助力器，其中流量调节阀适于响应于助力器的致动而快速增加助力器的动力室中的压力，另一个流量调节阀是 适于确保向动力转向装置供应加压流体，并且其中蓄能器适于可靠地操作助推器，即使当来自流体压力源的动力室的压力意外地被阻塞或停止时。

公开(公告)号：US3951043A

公开(公告)日：1976-04-20

申请号：US467000

申请日：1974-05-06

申请人： Frederick D. Keady

发明人： Frederick D. Keady

IPC分类号： B60T13/14 ,  F15B1/027 ,  F15B9/10

CPC分类号： B60T13/148 ,  F15B1/027

摘要： A motor vehicle fluid power circuit is disclosed which includes a constant displacement pump driven by the engine of the vehicle, a control valve, an open center steering valve, a brake booster accumulator, and a closed center brake booster. The entire output of the pump flows through the control valve under all conditions, and the control valve selectively directs the pump output to the steering valve to assist in steering the vehicle or to the brake booster accumulator (which is hydraulically connected to the brake booster) to assist in braking.

摘要翻译： 公开了一种汽车流体动力回路，其包括由车辆的发动机驱动的恒定排量泵，控制阀，开放中心转向阀，制动助力器蓄能器和闭合中心制动助力器。 泵的整个输出在所有条件下流过控制阀，并且控制阀选择性地将泵输出引导到转向阀，以帮助转向车辆或制动助力器蓄能器（其与制动助力器液压连接） 协助制动。

公开(公告)号：US3884533A

公开(公告)日：1975-05-20

申请号：US37810373

申请日：1973-07-11

申请人： JIDOSHA KIKI CO

发明人： ABE TOSHIHIRO ,  TOKAIWA KIYOSHI

IPC分类号： B60T15/36 ,  B60T13/14 ,  B60T17/22

CPC分类号： B60T13/148

摘要： A fluid pressure regulator valve assembly for the pressure accumulators used in the dual full pressure hydraulic brake system for vehicles is provided with two independent brake fluid conduits branching from a common supply passage and opened to both ends of a distributor cylinder. A pair of pressure chambers is provided in the distributor cylinder, mutually separated by a baffle wall, and communicate with a pair of accumulators. A piston rod slidably inserted through the baffle wall is kept at the neutral position by a balancing spring. A pair of one-way stop valves is provided at both open ends of passages of the pressure chambers, and each end of the piston rod is confronted with a valve element of each one-way stop valve. The piston rod is actuated against the repelling force of the balancing spring while the pressure of the braking fluid in any one of the accumulators is reduced to the desired level to a direction for moving the valve element at the reduced pressure side and clogging the open ends of the passages of the pressure chambers.

公开(公告)号：US3879948A

公开(公告)日：1975-04-29

申请号：US47868574

申请日：1974-06-12

申请人： GEN MOTORS CORP

发明人： FLORY DONALD M

IPC分类号： B60T13/14 ,  F15B7/00

CPC分类号： B60T13/148 ,  B60T13/144

摘要： A hydraulic brake booster is shown in a vehicle with the hydraulic pressure supply being the pump serving the power steering gear. The booster and the power steering gear are arranged in series and the booster is of the open center valve type. The control valve for the booster has one element formed on a reaction piston reciprocably mounted in the power piston and movable toward the valve closing direction by actuating pressure in the power chamber. The other valve element is mounted on an input member so that brake actuating movement of the input member causes a metering restriction of the hydraulic fluid flow between the valve elements with a consequent buildup of actuating pressure in the power chamber. The input member valve element is movable axially on the input member against a spring after the input member has been moved sufficiently far to close the control valve. The movement of the input member valve element operates an accumulator control valve which controls the admission of accumulator pressure to the power chamber for actuation after booster runout. The accumulator is maintained in a pressure charged state by action of the actuating pressure on the accumulator control valve, that pressure opening the valve to bring the accumulator charge pressure substantailly up to the level of the actuating pressure. The input member includes a balance piston having suitable areas operatively exposed to hydraulic fluid pressure and atmospheric pressure to prevent pressure buildup, due to actuation of the power steering gear, from affecting the brake booster operation, and to prevent an excessive reaction force on the input member.

摘要翻译： 在车辆中示出了液压制动助力器，其中液压供应是用于动力转向装置的泵。 增压器和动力转向装置串联布置，增压器为开式中心阀型。 用于增压器的控制阀具有形成在反作用活塞上的一个元件，该反作用活塞可往复运动地安装在动力活塞中并且通过致动动力室中的压力而朝向关闭方向移动。 另一个阀元件安装在输入构件上，使得输入构件的制动器致动运动导致阀元件之间的液压流体流动的计量限制，从而导致动力室中的致动压力的积累。 输入构件阀元件在输入构件已经移动足够远以关闭控制阀之后，抵抗弹簧在输入构件上轴向移动。 输入构件阀元件的移动操作蓄能器控制阀，其控制蓄能器压力进入功率室，以在升压器跳动之后被致动。 通过蓄能器控制阀上的致动压力的作用使蓄能器保持在压力充电状态，该压力打开阀以使蓄能器的充气压力达到致动压力的水平。 输入构件包括具有可操作地暴露于液压流体压力和大气压力的合适区域的平衡活塞，以防止由于动力转向装置的致动而产生的压力累积而不影响制动助力器操作，并且防止对输入的过大的反作用力 会员。

公开(公告)号：US3845776A

公开(公告)日：1974-11-05

申请号：US31681972

申请日：1972-12-20

申请人： AISIN SEIKI

发明人： UEDA A

IPC分类号： B60T13/14 ,  F15B1/027 ,  G05D16/10

CPC分类号： B60T13/148 ,  F15B1/027 ,  G05D16/10 ,  Y10T137/2627

摘要： An unloader valve disposed within a hydraulic circuit connecting a hydraulic pressure source to an accumulator for an actuator. The unloader valve comprises a ball valve for controlling pressurized fluid supplied into the accumulator from the pressure source and a valve spool for regulating the open-and-close operation of the ball valve in response to the pressure accumulated within the accumulator.

摘要翻译： 设置在将液压源连接到用于致动器的蓄能器的液压回路内的卸载阀。 卸载阀包括用于控制从压力源供应到蓄能器中的加压流体的球阀和用于响应于蓄积器内累积的压力来调节球阀的打开和关闭操作的阀芯。

公开(公告)号：USRE28177E

公开(公告)日：1974-10-01

申请号：US28177D

申请日：1972-12-01

IPC分类号： B60T7/20 ,  B60T11/10 ,  B60T11/18 ,  B60T13/14 ,  B60T13/16 ,  B60T13/22 ,  B60T15/00 ,  B60T15/04 ,  B60T17/04

CPC分类号： B60T11/18 ,  B60T7/20 ,  B60T11/108 ,  B60T13/141 ,  B60T13/148 ,  B60T13/16 ,  B60T13/22 ,  B60T15/00 ,  B60T15/04 ,  B60T15/041 ,  B60T15/043 ,  B60T17/04

摘要： 1. A VEHICLE BRAKING SYSTEM COMPRISING, IN COMBINATION, A DUAL PURPOSE HYDRAULIC ACCUMULATOR ADAPTED TO STORE HYDRAULIC FLUID UNDER PRESSURE AND PROVIDED WITH A BRAKE SPRING ADAPTED TO MECHANICALLY APPLY BRAKES OF THE VEHICLE, SAID BRAKE SPRING BEING COMPRESSES TO RELIEVE SAID BRAKES OF SAID MECHANICAL ACTUATION WHEN HYDRAULIC FLUID IS STORED IN SAID ACCUMULATOR, A VEHICLE BRAKE MECHANISM, HYDRAULIC ACTUATOR MEANS FOR OPERATING SAID BRAKE MECHANISM, AND A METERING VALVE FOR CONTROLLABLY CONNECTING SAID HYDRAULIC ACCUMULATOR TO SAID HYDRAULIC ACTUATOR MEANS FOR NORMAL OPERATION OF THE BRAKING SYSTEM.

公开(公告)号：US3834767A

公开(公告)日：1974-09-10

申请号：US34508673

申请日：1973-03-26

申请人： BULLINGER D

发明人： BULLINGER D

IPC分类号： B60T7/20 ,  B60T13/14 ,  B60T13/08

CPC分类号： B60T7/20 ,  B60T13/141 ,  B60T13/148

摘要： A trailer auxiliary hydraulic brake system completely independent of the conventional brake system and including a wheel-driven hydraulic pump, an accumulator, a main brake control valve, a back-up release valve and a fluid reservoir. An automatic actuation member, responsive to a longitudinally slidable connection between the tractor and trailer, controls the flow of pressurized hydraulic fluid to and from the trailer brakes. The trailer auxiliary system, in addition to automatically energizing the trailer brakes, also includes an assembly for manual actuation of the main brake control valve thus permitting emergency braking, pulsating braking and use of the system as a parking brake.

摘要翻译： 一种完全独立于常规制动系统的拖车辅助液压制动系统，包括轮式液压泵，蓄能器，主制动控制阀，后备释放阀和流体储存器。 响应于拖拉机和拖车之间的纵向可滑动连接的自动致动构件控制加压液压流体与拖车制动器的流动。 拖车辅助系统除了自动启动拖车制动器之外，还包括用于主制动控制阀的手动致动的组件，从而允许紧急制动，脉动制动以及将系统用作驻车制动器。

公开(公告)号：US3805525A

公开(公告)日：1974-04-23

申请号：US14566771

申请日：1971-05-21

申请人： AISIN SEIKI

发明人： KITO M ,  KUROMITSU H

IPC分类号： B60T13/14 ,  F15B7/08

CPC分类号： B60T13/141 ,  B60T13/148

摘要： In the dual hydraulic brake system the passages leading to the wheel brakes are closed during off service conditions and fluid communication is established between both hydraulic brake systems and a common reservoir. Valves are provided for interrupting fluid communication between the two systems upon application of the brakes and for applying fluid under pressure to the brakes. Upon a failure in one or both systems the manual braking pressures will still be supplied to the brakes for stopping the vehicle.

摘要翻译： 在双液压制动系统中，通向车轮制动器的通道在关闭使用条件期间关闭，并且在两个液压制动系统和公共储存器之间建立流体连通。 提供阀，用于在施加制动器时中断两个系统之间的流体连通并且将压力下的流体施加到制动器。 在一个或两个系统发生故障时，手动制动压力仍将提供给用于停止车辆的制动器。

公开(公告)号：US3785393A

公开(公告)日：1974-01-15

申请号：US3785393D

申请日：1972-05-02

申请人： DBA SA

发明人： TANGUY C

IPC分类号： B60T13/14 ,  B62D5/07 ,  F15B1/027 ,  F15B11/16 ,  G05D11/00

CPC分类号： B62D5/07 ,  B60T13/148 ,  F15B1/027 ,  F15B11/16 ,  F15B2211/20538 ,  F15B2211/30505 ,  F15B2211/3111 ,  F15B2211/3116 ,  F15B2211/40507 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/781 ,  Y10T137/2562 ,  Y10T137/2663

摘要： The vehicle hydraulic system comprises a pump, an accumulator adapted to energize a closed-centre power brake booster, and a open-centre power steering mechanism, the supply line of the power steering mechanism including a throttle in parallel relationship with a control valve. The valve member of the said control valve is actuated by a stepped piston responsive to the fluid pressures in the accumulator and in the supply line downstream said throttle, both pressures acting against a spring, thereby insuring a minimum level of pressure in the accumulator.

摘要翻译： 车辆液压系统包括泵，适于对闭合中心动力制动助力器通电的蓄能器和开放式动力转向机构，动力转向机构的供给管线包括与控制阀并联的节气门。 所述控制阀的阀构件由响应于蓄能器中的流体压力和在所述节流阀下游的供应管线中的阶梯式活塞致动，两个压力作用在弹簧上，从而确保蓄能器中的最小压力水平。