Variable valve time controler has fluid pressure channel for controling fluid delivered to and flowing from lag and lead angle chambers and relative rotation control mechanism

摘要

The device has a housing that rotates with an engine crankshaft or camshaft, a rotor (21) rotating with the crankshaft or camshaft (10), a hydraulic chamber, a vane on the rotor dividing the chamber into lead and lag angle chambers, a relative rotation control mechanism and a fluid pressure channel with independent fluid paths (19) for controling the fluid delivered to and flowing from the lag and lead angle chambers and the relative rotation control mechanism.