VALVE TIMING ADJUSTABLE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a valve timing adjustable device capable of enhancing workability at assembling of a chip seal without affecting the process at manufacturing of a plate spring and the chip seal. SOLUTION: The valve timing adjustable device is installed in a drive force transmitting system to transmit the rotation force to a camshaft equipped with a cam to open and close a valve. A hydraulic chamber to make relative revolution between a case at an input side for the camshaft and a rotor at an output side to the camshaft is formed between the case and the rotor. The case and the rotor generate the relative revolution by controlling the hydraulic pressure for the hydraulic chamber so as to change rotation phase of the camshaft, and change an opening and closing timing of the valve. Both the chip seal and the plate spring which are attached to the case or the rotor to seal the hydraulic chamber are made of a metal plate. The valve timing adjustable device is a metallic assembly which is previously and mutually assembled with the chip seal and the plate spring. COPYRIGHT: (C)2005,JPO&NCIPI