| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil separation device which can inhibit freezing of PCV valves. SOLUTION: The oil separation device is provided with an assembling member 3 on which a separator 5 is formed that separates the oil from the blow-by gas by attaching the oil contained in the gas onto a separation wall by taking in the blow-by gas introduced into an introduction space which is formed on a cylinder block of an internal combustion engine and the blow-by gas is introduced and by blowing the flow of the gas onto the separation wall. A PCV valve 6 is installed on the assembling member 3 in which opening is adjusted to make the derived amount of the gas changeable when the blow-by gas is derived from the introduction space after the oil is separated by the separator 5. The part of the assembling member 3 where the separator 5 is formed is made of resin and the part where the PCV valve 6 is installed is made of metal. COPYRIGHT: (C)2009,JPO&INPIT
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