| 摘要 |
<p>A sealing structure which is able to reduce an inserting load, while enhancing a sealing performance is provided. The sealing structure is characterized in that an annular groove (211) has a step on its groove bottom, and is provided with a primary annular groove (211a) disposed at one side of the step, and a secondary annular groove (211b) disposed at another side of the step, and a gasket (400) is disposed so as to be filled into the primary annular groove (211a), and a gap (D2) between an injector and a mounting hole at a boundary section between the primary annular groove (211 a) and the secondary annular groove (211b) is larger than a minute gap (D1) at an opposite side of the secondary annular groove (211b) intervened by the primary annular groove (211 a).</p> |
