SOLENOID OPERATED VALVE WITH UNITARY VALVE MEMBER/ARMATURE

摘要

A valve assembly (10) includes a solenoid can (14) having an internal coil (22). A valve body (12) connected to the solenoid can includes an inlet port (52) and a first valve seat (64). An axially adjustable retainer threadably connected to the valve body includes an end portion defining a second valve seat. A homogenous valve member/armature (18) slidably disposed in the valve body moves in the presence of a coil generated magnetic flux between valve closed and valve open positions. A valve member/armature first surface area is in fluid communication with a pressurized fluid through the inlet port. A valve member/armature second surface area is in fluid communication with the pressurized fluid in the valve closed position. The first surface area is equal to the second surface area and the pressurized fluid acts equally on the first and second surface areas defining a pressure balanced condition in the valve closed position.