Invention Grant
US08387644B2 Solenoid operated fluid control valve 有权
电磁式液压控制阀

Solenoid operated fluid control valve
Abstract:
Solenoid operated fluid control valve for a cam phasing mechanism of an internal combustion engine includes first and second control ports, a 2-stage hydraulically pilot-actuated, pressure balanced spool having an integral control feedback passage and a linear force solenoid actuator operably coupled to a pilot valve of a pilot stage. The spool valve includes an exhaust path common to pilot and spool exhaust passages.
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