| 摘要 |
A two-stage, variable force, solenoid control valve (10) for regulating fluid pressure can include a valve body (12) having a pilot fluid passage (14), including a metering land (16), in fluid communication with a flow amplifying fluid passage (18) through a valve control port (20) formed in the valve body (12). A solenoid operated pilot valve member (22), disposed in the pilot fluid passage (14), can have a metering orifice (24) operable in combination with the metering land (16) for selectively connecting the valve control port (20) with a pressurized fluid supply port (26) and a return exhaust port (28) in response to activation of a solenoid (34). A flow amplifying spool valve member (30), in fluid communication with the valve control port (20) of the pilot valve member (22) at one end (30a), can selectively connect a load control port (32) with the pressurized fluid supply port (26) and the return exhaust port (28) in response to pilot valve member (22) operation. |
