| 摘要 |
PROBLEM TO BE SOLVED: To provide a head cover of internal combustion engine that achieves an adequate separation between blow-by gas and oil, while achieving reduction in size/reduction in weight, with respect to a head cover of internal combustion engine. SOLUTION: An air intake bulge 24 and an exhaust gas bulge 26 are provided in a main body 22 of a head cover 10 for blocking an opening portion of internal combustion engine. On the bottoms of the air intake bulge 24 and the exhaust gas bulge 26, baffle plates 28, 30 having dripping holes of oil are arranged to form PCV rooms 32, 34, respectively. There provided are a gas lead-in portion for introducing blow-by gas into the PCV rooms 32, 34, and a gas lead-out portion for leading out the gas. The PCV rooms 32, 34 have circular passages, and are provided so as to produce a spiral gas stream therein. COPYRIGHT: (C)2008,JPO&INPIT
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