公开(公告)号：US5816668A

公开(公告)日：1998-10-06

申请号：US709680

申请日：1996-09-09

申请人： Wilhelm Heubner

发明人： Wilhelm Heubner

IPC分类号： B60T13/18 ,  B60T8/24 ,  B60T8/32 ,  B60T8/34 ,  B60T8/36 ,  B60T8/40 ,  B60T8/48 ,  B60T13/16 ,  B60T13/68 ,  F15B13/043 ,  F16K31/124

CPC分类号： B60T8/367 ,  B60T13/167 ,  B60T13/686 ,  B60T8/3225 ,  B60T8/348 ,  B60T8/4054 ,  B60T8/4072 ,  B60T8/4827

摘要： A valve apparatus for a non-muscular-energy-assisted brake circuit of a hydraulic brake system is disclosed. The apparatus has a restriction valve whose valve body in a controlled manner limits a restriction gap through which a hydraulic fluid is forced in non-muscular-energy-assisted braking operation in order to establish a defined dynamic pressure in a pressure chamber in which a valve plunger having a through-hole is provided. The dynamic pressure can be applied to a tensioner. If the non-muscular-energy assistance fails, the valve plunger can be closed to generate a residual braking pressure in the pressure chamber using the valve body when the through-hole is closed. Since the restriction gap is located at the through-hole, a very compact valve apparatus is created, in which the valve body not only limits the restriction gap but also serves as a sealing closure element for the through-hole and serves to directly control the valve plunger, while the brake pressure in the pressure chamber is present at all times directly at the valve body and therefore can be fed back in a desirable manner to the brake pedal.

摘要翻译： 公开了一种用于液压制动系统的非肌肉能量辅助制动回路的阀装置。 该装置具有限制阀，其阀体以受控的方式限制了限制间隙，通过该间隙液压流体被迫在非肌肉能量辅助制动操作中，以便在压力室中建立限定的动态压力，其中阀 提供具有通孔的柱塞。 动态压力可应用于张紧器。 如果非肌肉能量辅助失效，则当通孔闭合时，阀柱塞可以被关闭以在压力室中使用阀体产生残余制动压力。 由于限制间隙位于通孔处，因此产生非常紧凑的阀装置，其中阀体不仅限制了限制间隙，而且还用作用于通孔的密封闭合元​​件，并用于直接控制 阀柱塞，而压力室中的制动压力始终直接存在于阀体处，因此可以以期望的方式反馈到制动踏板。

公开(公告)号：US5472268A

公开(公告)日：1995-12-05

申请号：US133447

申请日：1993-10-07

申请人： Hiromi Ando ,  Kunihiro Matsunaga

发明人： Hiromi Ando ,  Kunihiro Matsunaga

IPC分类号： B60T8/34 ,  B60T8/36 ,  B60T8/40 ,  B60T8/48 ,  B60T8/50 ,  B60T15/36 ,  B60T13/18

CPC分类号： B60T8/4054 ,  B60T8/341 ,  B60T8/3635 ,  B60T8/4872 ,  B60T8/5037

摘要： The present invention relates to a brake fluid pressure control apparatus provided with a flow valve which, during the normal operation, when a spool is in the stationary position, a master cylinder communication port is communicated with a wheel cylinder communication port while the pump communication port is closed, and during an antiskid control operation, a pump communication port and a wheel cylinder communication port are communicated, as well as a switching device to switch between the first and the second conditions. In the first condition, a master cylinder communication port is communicated with the output fluid passage of the master cylinder while the communication between the pump communication port and the master cylinder communication port is shut off. In the second condition, the communication between the master cylinder communication port and the output fluid passage of the master cylinder is shut off while the pump communication port and the master cylinder communication port are communicated. Therefore, when two functions, antiskid and traction controls, are to be provided to a brake fluid pressure control apparatus having an antiskid control capability, there is no need to change the flow valve itself, in particular the spool, to provide the two functions.

摘要翻译： 本发明涉及一种具有流量阀的制动液压控制装置，该流量阀在正常操作期间当阀芯处于静止位置时，主缸连通口与轮缸连通口连通，泵通信口 关闭，并且在防滑控制操作期间，连通泵通信端口和轮缸连通端口，以及切换装置，以在第一和第二状态之间切换。 在第一条件下，主泵连通口与主缸的输出流体通道连通，同时泵通信口与主缸通信口之间的通信被切断。 在第二条件下，在泵通信端口和主汽缸通信端口通信时，主汽缸通信端口与主汽缸的输出流体通道之间的连通被切断。 因此，当具有防滑控制能力的制动液压控制装置的两个功能是防滑和牵引控制时，不需要改变流量阀本身，特别是阀芯，以提供两个功能。

公开(公告)号：US5346289A

公开(公告)日：1994-09-13

申请号：US969877

申请日：1992-10-30

申请人： Frederick W. Cords ,  David Frye

发明人： Frederick W. Cords ,  David Frye

IPC分类号： B60T7/20 ,  B60T13/08 ,  B60T13/18 ,  B60T13/74

CPC分类号： B60T13/08 ,  B60T13/18 ,  B60T13/745 ,  B60T7/20

摘要： A hydraulic braking system for a towed vehicle provides actuation of the hydraulic pump motor of the towed vehicle responsive to an electrical switch which is closed upon application of the brake pedal of the towing vehicle. However, even after actuation of the hydraulic pump, the towed vehicle brakes are only able to be applied in response to sensed relative movement of the towing and towed vehicle toward each other. A break-away switch sets the trailer brakes in the event of accidental separation of the towed vehicle from the towing vehicle. The control valve may be used in other situations to control a hydraulic pump and associated hydraulic braking system.

摘要翻译： 用于牵引车辆的液压制动系统响应于在施加牵引车辆的制动踏板时关闭的电开关来提供牵引车辆的液压泵马达的致动。 然而，即使在液压泵的致动之后，拖曳的车辆制动器也仅能够响应于牵引和牵引的车辆相对于彼此的感测的相对运动而被施加。 如果牵引车辆与牵引车辆意外分离，则断路开关设置拖车制动器。 控制阀可用于其他情况下，以控制液压泵和相关联的液压制动系统。

公开(公告)号：US4695100A

公开(公告)日：1987-09-22

申请号：US820717

申请日：1986-01-17

申请人： James E. Miles

发明人： James E. Miles

IPC分类号： A63B21/008 ,  B60T13/18

CPC分类号： A63B21/008

摘要： An improved hydraulic valve system particularly adapted for use in a hydraulic circuit of an exercise apparatus in order to more quickly equalize the high and low pressure sides of the hydraulic circuit when a load is removed therefrom. The valve system is adapted to allow the high pressure side after the force has ceased to open a relief valve so as to allow the low pressure side and the reservoir to quickly come into equilibrium with the high pressure side. In this fashion, the tendency of the base line pressure to be elevated during repetitive exercises is obviated and accurate exercise data can be accumulated.

摘要翻译： 一种改进的液压阀系统，特别适合用于运动装置的液压回路中，以便在从其移除负载时更快速地均衡液压回路的高压侧和低压侧。 阀系统适于在力已经停止打开安全阀之后允许高压侧，以允许低压侧和储存器快速地与高压侧平衡。 以这种方式，可以避免在重复练习期间升高基线压力的倾向，并可以积累精确的运动数据。

公开(公告)号：US4691520A

公开(公告)日：1987-09-08

申请号：US515600

申请日：1983-07-21

申请人： Lyle E. Osborne

发明人： Lyle E. Osborne

IPC分类号： B60T8/34 ,  B60T11/34 ,  B60T13/18 ,  F15B15/18

CPC分类号： B60T13/18 ,  B60T11/34 ,  B60T8/34

摘要： A hydraulic vehicle brake system of the type having a high system return pressure is provided. In order to minimize the size and strength of brake return springs required, the invention provides a device to be interposed between the brake and the brake control valve. Preferred embodiments of the device include an inlet port communicating with a brake valve and an outlet port communicating fluid pressure to a vehicle brake. A control assembly is provided intermediate the inlet and outlet ports and includes mechanisms for amplifying the hydraulic pressure effect in the direction from the outlet port to the return pressure system so that the brake return pressure exerted by the brake return springs can be substantially less than the hydraulic system return pressure.

摘要翻译： 提供具有高系统返回压力的液压车辆制动系统。 为了最小化所需的制动复位弹簧的尺寸和强度，本发明提供了一种设置在制动器和制动控制阀之间的装置。 该装置的优选实施例包括与制动阀连通的入口端口和将流体压力连通到车辆制动器的出口。 控制组件设置在入口和出口之间，并且包括用于放大从出口到返回压力系统的方向上的液压效应的机构，使得由制动复位弹簧施加的制动返回压力可以显着小于 液压系统返回压力。

公开(公告)号：US4200340A

公开(公告)日：1980-04-29

申请号：US935971

申请日：1978-08-22

申请人： Hugh G. Margetts

发明人： Hugh G. Margetts

IPC分类号： B60T13/14 ,  B60T13/18 ,  B62D11/18 ,  B60T15/06

CPC分类号： B60T13/141 ,  B60T13/18 ,  B62D11/183

摘要： In a control valve assembly for a vehicle dual hydraulic braking system separate brake-applying valves in a common body are operable independently or simultaneously to cause hydraulic fluid from a distributor chamber to be supplied to one or both of a pair of outlets for connection to brakes on wheels on opposite sides of the vehicle. Each brake-applying valve comprises a valve member which is urged into engagement with a seating surrounding a respective outlet by means of a spring. An operating member for moving the valve member away from the seating in a brake applying direction is coupled to a respective brake pedal, and the operating member is also coupled to the valve member through a lost-motion connection.

摘要翻译： 在用于车辆双重液压制动系统的控制阀组件中，共同体内的单独的制动施加阀可独立或同时地操作以使得来自分配器室的液压流体被供给到用于连接到制动器的一对出口中的一个或两个 在车辆两侧的车轮上。 每个制动施加阀包括阀构件，该阀构件通过弹簧被推动与围绕相应出口的座椅接合。 用于使阀构件沿制动施加方向离开座的操作构件联接到相应的制动踏板，并且操作构件还通过空动连接联接到阀构件。

公开(公告)号：US3995529A

公开(公告)日：1976-12-07

申请号：US585282

申请日：1975-06-09

申请人： Lloyd G. Bach ,  Stephen M. Buente

发明人： Lloyd G. Bach ,  Stephen M. Buente

IPC分类号： B60T13/12 ,  B60T13/14 ,  B60T13/18 ,  F15B13/04

CPC分类号： B60T13/143

摘要： A hydraulic brake booster is disclosed which is normally actuated by a primary pressure source, but which may be actuated by a secondary pressure source during failure of the primary pressure source. The booster includes a spool valve which controls communication between the primary pressure source and the booster pressure chamber. The spool valve is actuated by a control pressure which is generated by the vehicle operator when a brake application is effected. The control pressure shifts the spool valve to cause the latter to communicate fluid pressure from the primary pressure source into the pressure chamber. A pressure differential responsive piston is responsive to a pressure differential between the control pressure and the pressure communicated into the booster pressure chamber. When the control pressure exceeds the pressure communicated to the booster pressure chamber by some predetermined amount, the differential pressure responsive piston shifts to actuate a valve mechanism to communicate fluid from the secondary pressure source to the booster pressure chamber. Simultaneously, shifting of the differential pressure responsive piston to actuate the valving mechanism also terminates communication between the spool valve and the booster pressure chamber, so that fluid from the secondary pressure source communicated into the booster pressure chamber may not leak through the spool valve.

摘要翻译： 公开了一种液压制动助力器，其通常由初级压力源致动，但是在主压力源故障期间可由次级压力源致动。 增压器包括一个控制主压力源和增压压力室之间的连通的滑阀。 滑阀通过在实施制动时由车辆操作者产生的控制压力来致动。 控制压力使滑阀转动，使后者将来自主压力源的流体压力传递到压力室。 压差响应活塞响应于控制压力和传递到增压压力室中的压力之间的压力差。 当控制压力超过与增压压力室相通一定量的压力时，差压响应活塞移动以致动阀机构，以将来自二次压力源的液体与增压压力室连通。 同时，差压响应活塞的移动以致动阀机构也终止滑阀和助力器压力室之间的连通，从而连通到增压压力室的二次压力源的流体可能不会通过滑阀泄漏。

公开(公告)号：US3915066A

公开(公告)日：1975-10-28

申请号：US42146473

申请日：1973-12-03

申请人： BENDIX GMBH

发明人： THOMAS ALFRED WILLIAM ,  BOTTERILL JOHN REDVERS

IPC分类号： B60T13/18 ,  B60T13/12 ,  F15B13/10 ,  F15B17/02

CPC分类号： B60T13/12

摘要： A power boost mechanism for use in a braking system of an automotive vehicle, and comprising a servomotor and a servovalve. The valve housing is provided with an inlet port, an outlet port and an exhaust port. A spool valve movable in the valve housing, includes a central bore and passages to selectively communicate the inlet port and the exhaust port with a work port connected to the working chamber of the servomotor. An output piston is located in said working chamber and comprises an output plunger projecting into an enclosed chamber filled with incompressible fluid. In the control chamber also projects an operator-actuated input member in which projects said output plunger to define therewith a cavity. The cavity communicates with said control chamber through a one-way valve and by an exhaust passage closed when said input plunger is biased toward said output plunger.

摘要翻译： 一种用于机动车辆的制动系统中的功率提升机构，包括伺服电动机和伺服阀。 阀壳体设有入口，出口和排气口。 可在阀壳体中移动的滑阀包括中心孔和用于选择性地将入口端口和排气口连通到连接到伺服电动机的工作室的工作端口的通道。 输出活塞位于所述工作室中，并且包括突出到填充有不可压缩流体的封闭室中的输出柱塞。 在控制室中还投影一个操作者致动的输入构件，在该构件中，所述输出柱塞的项目具有腔体。 所述空腔通过单向阀与所述控制室连通，并且当所述输入柱塞朝向所述输出柱塞偏压时，所述空气通道关闭。

公开(公告)号：US3858944A

公开(公告)日：1975-01-07

申请号：US37795073

申请日：1973-07-10

申请人： GEN MOTORS CORP

发明人： POCOBELLO MICHAEL A ,  CROSWELL HAROLD E ,  RIISAGER HAROLD E

IPC分类号： B60T7/04 ,  B60T13/18 ,  B60T13/58

CPC分类号： B60T13/18 ,  B60T7/047

摘要： A device for acutating a vehicle brake having a hydraulic actuator and a mechanical actuator. A brake pedal is connected in lost motion relation with the mechanical actuator. A valve housing has a piston slidable therein and a valve spool slidable in a central annulus of the piston. A push-pull cable connects the valve spool to the brake pedal. Movement of the brake pedal by the operator moves the valve spool to channel pressure fluid to the hydraulic brake actuator for operation thereof. A parking brake apply valve is operable by the vehicle operator to channel pressure fluid to the piston which moves the piston and the valve spool and the brake pedal connected thereto beyond the range of lost motion to operate the mechanical actuator.

摘要翻译： 一种用于对具有液压致动器和机械致动器的车辆制动器进行补充的装置。 制动踏板与机械致动器以失速运动的关系连接。 阀壳体具有可滑动的活塞和可在活塞的中心环中滑动的阀芯。 推拉电缆将阀芯连接到制动踏板。 由操作者使制动踏板的移动将阀芯移动到通道压力流体到液压制动致动器以进行操作。 驻车制动器施加阀可由车辆操作者操作以将压力流体引导到活塞，该活塞使活塞和连接到其上的阀芯和制动踏板移动超过空档的范围，以操作机械致动器。

公开(公告)号：US3806201A

公开(公告)日：1974-04-23

申请号：US29533272

申请日：1972-10-05

申请人： MASSEY FERGUSON SERVICES NV

发明人： MONTANARI M

IPC分类号： B60T11/10 ,  B60T13/18 ,  B60T13/10

CPC分类号： B60T11/108 ,  B60T13/18

摘要： In agricultural trailers hydraulic brakes which are actuated by depressing the brake pedal of the towing tractor, it has been found that there is a tendency for a poppet valve to vibrate as oil passes through it. This invention provides a throttling valve in series with the poppet valve which damps such vibrations.

摘要翻译： 在通过按压拖拉机的制动踏板来致动的农用拖车液压制动器中，已经发现随着油通过它，存在提升阀振动的倾向。 本发明提供了一种与提升阀串联的节流阀，其阻止这种振动。