Solenoid-actuated pressure control valve

摘要

A valve assembly includes a hydraulic subassembly with a valve member displaceable along a valve axis for controlling flow of fluid. The valve assembly also includes a solenoid subassembly for selectively displacing said valve member. The solenoid subassembly includes a metallic solenoid housing having an open end and a solenoid housing base. The solenoid subassembly also includes a solenoid coil assembly disposed within the solenoid housing, the solenoid coil assembly having a coil wound around a plastic spool defining a spool bore extending through the spool. The solenoid subassembly also includes a metallic solenoid housing cover closing off the open end of the solenoid housing and attached to the solenoid housing with a crimp connection. The solenoid subassembly also includes a metallic column disposed within and passing through the spool bore extending from the solenoid housing base to the solenoid housing cover.

主权项

1. A valve assembly having a hydraulic subassembly with a valve member displaceable along a valve axis for controlling at least one of flow and pressure of fluid from a fluid source to a working device, said valve assembly also having a solenoid subassembly for selectively displacing said valve member, said solenoid subassembly comprising:
a metallic solenoid housing having an open end distal from said hydraulic subassembly and a solenoid housing base adjacent to and connected with said hydraulic subassembly; a solenoid coil assembly disposed within said solenoid housing, said solenoid coil assembly having a coil wound around a plastic spool defining a spool bore extending through said spool; a metallic solenoid housing cover closing off said open end of said solenoid housing and attached to said solenoid housing with a crimp connection that creates a compressive crimp force acting along said valve axis; and a metallic column disposed within and passing through said spool bore, said metallic column extending from said solenoid housing base to said solenoid housing cover; wherein said compressive crimp force is transferred through said metallic column from said solenoid housing base to said solenoid housing cover to isolate said compressive crimp force from plastic components.