Back to results
US 4,602,595 AGranted
Oil separator for internal combustion engine
AssigneeAisin Seiki Kabushiki Kaisha
InventorsKongoh Aoki, Shuji Okumura
Life of this patent
Estimating the term…
Abstract
An oil separator for separating and collecting lubrication oil contained in blow-by gas of an internal combustion engine. The separator is formed in the cylinder-head cover of the engine and incorporates a porous filter or filters made of foam metal for absorbing oil constituents in the blow-by gas. The filter is vertically arranged so as to make the absorbed oil to fall to the bottom of the separator and to be collected by the oil reservoir for recycling the separated oil to the cylinder.
Claims3
An oil separator for an internal combustion engine, which comprises:
- a casing of oil separator formed integrally with the cylinder-head cover of an engine,
- a porous filter means made of foam metal arranged vertically in said casing, to absorb oil constituents contained in blow-by gas flowing into said casing from the upper chamber of the cylinder and to pass gas constituents therethrough,
- an oil reservoir formed at the bottom portion of said casing, to reserve oil separated by said porous filter means,
- a check valve arranged in said oil reservoir to release the oil from the oil reservoir to the upper chamber of the cylinder when the volume of reserved oil becomes over a predetermined degree, and
- an outlet port formed in the wall of said casing, to send gas passing through the filter to an intake manifold.
2 more elements
Dependencies are inferred from the claim text.