| 摘要 |
PURPOSE: An injector tube for an engine is provided to reinforce a sealing property by improving an injector tube assembled to a cylinder head of a combustion chamber. CONSTITUTION: An injector tube(20) for an engine has an assembling groove(28) at an assembling hole(26) of a cylinder head(24) in a combustion chamber(22). An assembling pipe portion(32) having an enlarged diameter is formed to correspond to the assembling groove to be assembled by an assembling protrusion(30) tightly. The assembling pipe portion of the injector tube is inserted into the assembling hole. Herein, a non-enlarged assembling pipe portion is used. The assembling protrusion is formed to correspond to the assembling groove as the assembling pipe portion is enlarged after inserting. The assembling protrusion is assembled to the assembling hole of the cylinder head tightly. Therefore, the injector tube is prevented from the leakage of gas and cooling water.
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