Solenoid control valve with particle gettering magnet

A hydraulic fluid solenoid control valve, comprising a one-piece member forming a solenoid coil bobbin region and an integral check valve-receiving region having a check valve-receiving receptacle communicated to a fluid exhaust port, a solenoid armature, a fluid control valve movable relative to a fluid control port in response to armature movement, a check valve disposed in said receptacle, a solenoid coil on the coil bobbin region for receiving electrical signals to control armature movement, and a permanent magnet disposed on said solenoid control valve to capture ferrous particles present in hydraulic fluid supplied to a fluid supply port of said solenoid control valve.

The combination of a hydraulic pressure supply bore of an internal combustion engine and a hydraulic fluid solenoid control valve, said solenoid control valve comprising a fluid supply port communicated to said bore, a solenoid coil, a solenoid armature movable by energization of said solenoid coil, a check valve communicated to a fluid exhaust port of said solenoid control valve, a fluid control valve movable relative to a fluid control port of said solenoid control valve in response to armature movement, and a permanent magnet disposed on said solenoid control valve upstream of said fluid supply port to capture ferrous particles present in hydraulic fluid supplied via said bore to said fluid supply port.