COMBUSTION GAS SEAL FOR FUEL INJECTION VALVES

摘要

PROBLEM TO BE SOLVED: To provide a combustion gas seal for a fuel injection valve that is capable of exerting favorable sealing capability over a long period of time with a simple structure. SOLUTION: A seal ring 10 is mounted on an annular groove 51 provided on an outer circumferential surface of the fuel injection valve 5, thus preventing combustion gas leakage. Further, a seal washer 11 is provided at more posterior end of the fuel injection valve than the seal ring 10, thus sealing the combustion gas leaked from the seal ring 10. COPYRIGHT: (C)2005,JPO&NCIPI