Oil pre-filter for crankcase gas of internal-combustion engine, has shell body arranged in inner side of cylinder head cover, where shell body has inlet section which has flow cross-section increasing by inlet opening for crankcase gas

摘要

The oil pre-filter (1) has a shell body (2) arranged in the inner side (3) of a cylinder head cover (4) of an internal-combustion engine in the installed condition. The cylinder head cover has a wall section (7) to cover, and the covered wall section separates a preliminary space (8). The shell body has an inlet section (9), which has a flow cross-section increasing by the inlet opening (11) for crankcase gas to the preliminary space.