A solenoid-operated valve for use in an internal combustion engine has a valve body movable upwardly for closing an exhaust or intake passage and movable downwardly for opening the exhaust or intake p

A linear solenoid valve actuation device comprises a step wave generating circuit comprising a converting circuit whereby the desired amount of control is computed at a predetermined period of clocks

A solenoid-operated pressure-fluid valve for reversible control of both supply and exhaust functions of a double-acting fluid-pressure device. A valve body has an inlet port communicating with an inle

A fast-response three-way solenoid valve. A housing has three openings interconnected by a linear fluid pathway, with two chambers each disposed between two openings and having at least one valve seat

A fluid control system that includes a fluid manifold having a plurality of manifold bodies fastened to each other end-to-end so as to form at least first and second passages extending continuously th

A hydraulic solenoid valve includes a valve housing with bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to the bores.

A pressure balanced three-way solenoid valve including a valve housing having a valve chamber and a high pressure fluid supply passage, high pressure fluid outlet passage and drain passage communicati

A high-speed solenoid valve apparatus has a body, and a high-speed solenoid valve section and a logic valve section disposed in the body.