| 摘要 |
PROBLEM TO BE SOLVED: To satisfy both firmly mounting of a PCV valve and sufficiently ensuring of seal performance relating to a separator. SOLUTION: A PCV valve 6 is fitted to a mounting cylinder part 4 formed in an upper part of a separator 3 separating oil mist of an engine and blow-by gas. A cap part 22 is integrally molded in the mounting cylinder part 4, a lock hole 23 formed in the cap part 22 is engaged with a lock pawl part 21 formed in the mounting cylinder part 4, and coming-off from the mounting cylinder part 4 of the PCV valve 6 is prevented.
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