EXHAUST VALVE OPERATING MECHANISM, DIESEL ENGINE, AND METHOD FOR COOLING EXHAUST VALVE OF EXHAUST VALVE OPERATING MECHANISM

摘要

cool the exhaust valve to operate the exhaust valve to improve the reliability and durability mechanism, it provides a cooling method for a diesel engine exhaust valve and the exhaust valve operating mechanism. In the exhaust valve to compress a working fluid that is opened by using a driving force transmitted from the lower valve-operating mechanism in the upper valve operating mechanism 20, the exhaust valve operating mechanism provided, is formed inside the valve body of the exhaust valve a portion of the working oil and the refrigerant circulation conduit (30) for introducing the outlet opening of the upper valve-operating mechanism 20, the endosperm passage provided through the housing 25 when provided, and the opening and closing of the exhaust valve operation, refrigerant circulation flow path 30 and the the inlet opening of the flow path to generate a flow in the endosperm part of the operating fluid in communication. ;