发明授权
- 专利标题: Pressure-regulating solenoid valve for a hydraulic circuit
- 专利标题(中): 用于液压回路的调压电磁阀
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申请号: US648115申请日: 1996-05-21
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公开(公告)号: US5915799A公开(公告)日: 1999-06-29
- 发明人: Philippe Bourlon , Werner Quirant
- 申请人: Philippe Bourlon , Werner Quirant
- 申请人地址: FRX Drancy
- 专利权人: Bosch Systemes de Freinage
- 当前专利权人: Bosch Systemes de Freinage
- 当前专利权人地址: FRX Drancy
- 优先权: FRX9507667 19950626
- 主分类号: B60T8/36
- IPC分类号: B60T8/36 ; F15B13/044 ; F16K31/06 ; G05D16/20
摘要:
A pressure-regulating solenoid valve (100) for a hydraulic circuit having at least one generator (300) of pressurized fluid, a pressure receiver (200) and a reservoir (400) of fluid under low pressure. The solenoid valve having an electric coil (10) which interacts with first (12) and second (14) pole pieces and a magnetic body (26). The magnetic body (26) moves under the effect of an actuating force (O) generated by a magnetic field created by the electric coil (10) and a distributor element (30) interacting with a sleeve structure (28) to command communication between a duct (66) connected to the pressure receiver and one of first (54) and second (42) ducts sequentially connected to the generator (300) of pressurized fluid or the reservoir (400) of fluid under low pressure. The solenoid valve (100) has at least one reaction chamber (46) which is permanently in communication with the pressure receiver (200) for receiving a reaction force which added to the actuation force (O) generated by the actuation of coil (10). The reaction force and actuation force are counter to a force (F) generated by an elastic means (34,36) which act on the movable magnetic body (26). The sleeve structure (28) is stationary with respect to the first and second pole pieces (12,14) while the distributor element (30) slides with respect to the sleeve structure (28) in response to movement of the magnetic body (26) responding to the reaction force and actuation force.