公开(公告)号：US3868890A

公开(公告)日：1975-03-04

申请号：US40254573

申请日：1973-10-01

Applicant: BENDIX CORP

Inventor： ROBERTS JAMES K ,  PAUWELS EDWARD M

IPC: B60T8/40 ,  B60T8/42 ,  F16J3/02 ,  F16J15/00 ,  F16J15/52 ,  F01B31/00

CPC classification number: F16J15/004 ,  B60T8/4225 ,  F16J15/52 ,  Y10T137/5762

Abstract: A hydraulic device is disclosed which includes a diaphragm which assures separation between two incompatible fluids communicated into a housing so that a fluid leaking past its corresponding seal cannot damage the seal which prevents leakage of the other fluid. The hydraulic device includes a piston slidably mounted within a housing, and the aforementioned diaphragm interconnects the piston with the housing wall. The peripheral edge of the diaphragm is received in a passage which communicates the interior of the housing device with the exterior. The diaphragm is provided with a pair of resilient lips which extend into the aforementioned passage and are adapted to control fluid communication therethrough. The lips are responsive to movement of the piston to seal against the passage during stroke of the piston in one direction due to the partial vacuum created within the housing, to thereby prevent entry of exterior contaminants into the housing. Upon stroke of the piston in the opposite direction, the increase of fluid pressure in the housing expels the accumulated fluid seepage within the housing past the lips to the housing exterior.

Abstract translation: 公开了一种液压装置，其包括隔膜，其确保连通到壳体中的两个不相容的流体之间的分离，使得通过其对应的密封件泄漏的流体不会损坏密封件，从而防止其它流体泄漏。 液压装置包括可滑动地安装在壳体内的活塞，并且上述隔膜将活塞与壳体壁相互连接。 隔膜的外围边缘被容纳在将外壳装置的内部与外部连通的通道中。 隔膜设置有一对延伸到上述通道中并且适于控制通过其的流体连通的弹性唇缘。 由于在壳体内产生的部分真空，唇缘响应活塞的运动而在一个方向的活塞行程期间密封抵靠通道，从而防止外部污染物进入壳体。 在活塞沿相反方向冲程时，壳体中的流体压力的增加将壳体内积聚的流体渗漏通过嘴唇流到壳体外部。

公开(公告)号：US3677610A

公开(公告)日：1972-07-18

申请号：US3677610D

申请日：1970-11-16

Applicant: BENDIX CORP

Inventor： PAUWELS EDWARD M ,  ROBERTS JAMES K

IPC: B60T8/36 ,  B60T8/50 ,  B60T17/18

CPC classification number: B60T8/36 ,  B60T8/5018

Abstract: A control valve for use in an adaptive braking system to modulate the pressure delivered to a braked wheel when a skid condition is sensed. The adaptive braking control valve will permit normal unobstructed flow of pressure from the driver''s control valve to and from the wheel brake actuating device. Upon sensing an imminent skid condition by the adaptive braking system, a solenoid will be energized that allows a source of pressurized fluid to enter the control valve. The source of pressurized fluid in the control valve will move a diaphragm which closes the pressure received from the driver''s control valve and, subsequently, reduces the pressure in the wheel brake actuating device. When an imminent skid condition no longer exists, the solenoid will de-energize thereby terminating the source of pressurized fluid from the control valve. The pressurized fluid acting against the diaphragm is decayed by a bleed orifice, thereby restoring normal communication between the driver''s control valve and the wheel-brake actuating device. A small bypass is included to allow a slow pressure build rate in the wheel brake actuating device during the time interval between the stopping of normal communication and the reduction of pressure from the wheel brake actuating device.

Abstract translation: 一种用于自适应制动系统中的控制阀，用于在感测到滑行条件时调节传递到制动轮的压力。 自适应制动控制阀将允许来自驾驶员的控制阀的来自车轮制动器致动装置的正常的不间断的压力流动。 在通过自适应制动系统感测到即将发生的滑行状态时，电磁阀将被通电，允许加压流体源进入控制阀。 控制阀中的加压流体源将移动隔膜，其关闭从驾驶员的控制阀接收的压力，并且随后降低车轮制动器致动装置中的压力。 当不再存在即将到来的防滑条件时，螺线管将断电，从而从控制阀终止加压流体源。 作用在隔膜上的加压流体被泄放孔腐蚀，从而恢复驾驶员的控制阀和车轮制动器致动装置之间的正常连通。 包括一个小的旁路，以允许在停止正常通信和减少来自车轮制动器致动装置的压力之间的时间间隔期间车轮制动器致动装置中的缓慢压力建立速率。