INJECTOR FOR EXHAUST GAS PURIFYING SYSTEM OF ENGINE

摘要

PURPOSE: An injector of an exhaust gas purifying system in an engine is provided to prevent an injection hole of the injector from being exposed in exhaust gas of the engine directly by mounting a protector in the end of the injector. CONSTITUTION: A catalyst converter is installed in an exhaust passage(18) of an engine to purify exhaust gas from the engine. Injectors(10) inject the reducer to the exhaust passage between the engine and the catalyst converter. Protectors(38b) are installed in the ends of the injectors to prevent injection holes(38a) of the injectors from being exposed in exhaust gas of the engine directly. A collision wall is formed in the protector to bump the reducer from the injection hole. Blocking of the injection hole is prevented by restricting soot from being stuck on the injection hole with mounting the protector.