公开(公告)号：CA2074367A1

公开(公告)日：1991-08-09

申请号：CA2074367

申请日：1990-12-24

Applicant: APPLIED POWER INC

Inventor： PATEL KISHOR J ,  STOBBS THOMAS J

IPC: B60G17/08 ,  B60T8/36 ,  B60T15/02 ,  F16F9/46 ,  F16F9/50 ,  F16K31/06 ,  G05D16/20

Abstract: 2074367 9112452 PCTABS00006 A proportional pressure control valve is disclosed which may be used for uni-directional or bi-directional fluid flow. An electromagnetic driver (35, 251, 360) mounted in a driver cavity (36, 353) of a housing produces a magnetic flux path in response to a variable input current. The magnitude of the flux path is substantially proportional to the input current. The flux path passes through an armature (40, 276) which is movable within the driver cavity. The armature is connected to a metering spool (64, 209, 260) so that the two move in unison. The metering spool is movable within a main bore between a sealing position and an infinite number of open positions. The position of the metering spool determines the magnitude of fluid communication between pressure ports. A feedback section (85, 98) of the housing establishes a pressure feedback force which impacts on the position of the metering spool and the armature. The valve may also include a spring (272) for biasing the metering spool to a fail-safe position within the housing. The proportional pressure control valve can be incorporated into a damper of a vehicle suspension system where the input current is governed by an electronic control unit (56) of the vehicle. The electronic control unit (56) may be responsive, in part, to the position of the suspension system through the use of a position feedback sensor (101).

公开(公告)号：WO9500349A2

公开(公告)日：1995-01-05

申请号：PCT/US9403421

申请日：1994-04-01

Applicant: APPLIED POWER INC

Inventor： STOBBS THOMAS J

IPC: B60G17/056 ,  F15B13/043 ,  G05D16/20 ,  B60G17/08 ,  F16F9/46

CPC classification number: B60G17/056 ,  G05D16/2093 ,  Y10T137/7613

Abstract: A two stage pressure control valve (10) has a poppet (66) movable toward and away from a valve seat (70) to vary the cross-sectional area of a passageway from an inlet (72) to an outlet (52). The position of the poppet (66) is dependent in part on the difference in pressure between a fluid pressure at the inlet (72) which exerts a force on the poppet (66) in one axial direction and a control pressure which is produced by a fluid flow from the inlet (72) in a chamber (94) downstream from the inlet (72) and which exerts a force on the poppet (66) in the opposite axial direction. The control pressure is controlled by an electromagnetic coil (22) which can be variably energized to move an armature (30) so as to vary a variable restriction downstream from the control pressure so as to vary the control pressure. A tube (80) extends through and forms an axial sliding seal with the poppet (66) and communicates a flow of fluid from the inlet (72) to the variable restriction and the chamber (94) is positioned adjacent to an exterior surface of the tube (80). An orifice (90) through a wall of the tube (80) communicates a lumen (92) of the tube (80) with the chamber (94).

Abstract translation: 两级压力控制阀（10）具有可朝向和远离阀座（70）移动的提升阀（66），以改变从入口（72）到出口（52）的通道的横截面面积。 提升阀（66）的位置部分地取决于在一个轴向上对提升阀（66）施加力的入口（72）处的流体压力与由一个轴向上产生的控制压力之间的压力差 流体从入口（72）下游的腔室（94）中的入口（72）流动，并且在相对轴向方向上在提升阀（66）上施加力。 控制压力由电磁线圈（22）控制，电磁线圈（22）可被可变地通电以移动电枢（30），以便在控制压力下游改变可变限制，从而改变控制压力。 管（80）延伸穿过并与提升阀（66）形成轴向滑动密封，并且将来自入口（72）的流体流连通到可变限制器，并且腔室（94）邻近于外部表面 管（80）。 通过管（80）的壁的孔口（90）将管（80）的内腔（92）与腔室（94）连通。

公开(公告)号：EP0513043A4

公开(公告)日：1994-08-24

申请号：EP91902455

申请日：1990-12-24

Applicant: APPLIED POWER INC

Inventor： PATEL KISHOR J ,  STOBBS THOMAS J

IPC: B60G17/08 ,  B60T8/36 ,  B60T15/02 ,  F16F9/46 ,  F16F9/50 ,  F16K31/06 ,  G05D16/20

CPC classification number: B60T8/3665 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/90 ,  B60G2500/10 ,  B60G2600/26 ,  B60T15/028 ,  F16F9/46 ,  G05D16/2086 ,  Y10T137/7613

Abstract: A proportional pressure control valve is disclosed which may be used for uni-directional or bi-directional fluid flow. An electromagnetic driver (35, 251, 360) mounted in a driver cavity (36, 353) of a housing produces a magnetic flux path in response to a variable input current. The magnitude of the flux path is substantially proportional to the input current. The flux path passes through an armature (40, 276) which is movable within the driver cavity. The armature is connected to a metering spool (64, 209, 260) so that the two move in unison. The metering spool is movable within a main bore between a sealing position and an infinite number of open positions. The position of the metering spool determines the magnitude of fluid communication between pressure ports. A feedback section (85, 98) of the housing establishes a pressure feedback force which impacts on the position of the metering spool and the armature. The valve may also include a spring (272) for biasing the metering spool to a fail-safe position within the housing. The proportional pressure control valve can be incorporated into a damper of a vehicle suspension system where the input current is governed by an electronic control unit (56) of the vehicle. The electronic control unit (56) may be responsive, in part, to the position of the suspension system through the use of a position feedback sensor (101).