Patent ID: 8480777
Filing Date: 2013-07-09
Classification: F01M

Abstract:
1. An oil separation device of an engine, comprising: an oil separation chamber in which blow-by gas generating in the engine flows horizontally; a partition plate provided in the oil separation chamber to partition the oil separation chamber into an upstream chamber and a downstream chamber; a connection hole formed at the partition plate; a screen plate provided in the oil separation chamber downstream of the partition plate and facing the partition plate, the blow-by gas passing through the connection hole hitting against the screen plate; a gas-passing through hole formed below the screen plate and allowing the blow-by gas having hit against the screen plate to flow therethrough; an oil pocket portion provided below the gas-passing through hole and accepting oil flowing down from the screen plate; an extension piece portion provided at a lower end portion of the screen plate and extending from the lower end portion, beyond the gas-passing through hole, to the oil pocket portion; and an oil guide portion provided at a face portion of the screen plate on the side of gas hitting and a face portion of the extension piece portion on the side of gas hitting, and guiding the oil trapped at said face portions into the oil pocket portion.