US5063882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil separator for gases from a crankcase of an internal-combustion engine
Assignee: Dr Ing HCF Porsche AG
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Filing: 1990-12-11
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Granted: 1991-11-12
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Expires: 2010-12-11
Abstract
Abstract An oil separator for the oil contained in the crankcase gases of an internal-combustion engine is constructed in two parts consisting of an exterior housing and an insert arranged therein. The oil precipitates in the housing along two deceleration paths, is collected in oil collecting areas and is returned into the crankcase.
Inventors
- 👤 Alfred Koch
- 👤 Dieter Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
An oil separator for gases from a crankcase of an internal-combustion engine, comprises a multipart housing adapted to be held on the crankcase, an insert arranged in the housing, wherein the exterior surface of the insert, together with an internal wall of the housing, form a first deceleration path in series with a second deceleration path for the gases, the deceleration paths being essentially of semicircular shape and being partly separated from one another by a transversely extending wall of the housing.
Claim 2
Dependent Claim
82 words
An oil separator for gases from a crankcase of an internal-combustion engine, comprises a multipart housing adapted to be held on the crankcase, an insert arranged in the housing, wherein the exterior surface of the insert, together with an internal wall of the housing, form a first deceleration path in series with a second deceleration path for the gases, the deceleration paths being essentially of semicircular shape and being partly separated from one another by a transversely extending wall of the housing.
Claim 3
Dependent Claim
36 words
An oil separator according to claim 1, wherein the insert has a first oil collecting area arranged downstream of the first deceleration path and a second oil collecting area arranged downstream of the second deceleration path.
Claim 4
Dependent Claim
45 words
An oil separator according to claim 2, wherein the insert, adjacent to the oil collecting areas, has recesses which surround corresponding arched areas of the housing, and an opening of the housing is tightly sealed off by said insert with the exception of a gap.
Claim 5
Dependent Claim
40 words
An oil separator according to claim 3, wherein the wall is arranged above the first oil collecting area and another wall is arranged above the second oil collecting area and partially projects into a discharge connection piece of the housing.
Claim 6
Dependent Claim
37 words
An oil separator according to claim 2, wherein two oil collecting areas including discharge openings, one area defined in part by lateral boundary walls and the second area comprising a boundary wall adjacent to the internal wall.
Claim 7
Dependent Claim
45 words
An oil separator according to claim 5, wherein the insert, adjacent to the oil collecting areas, has recesses which surround corresponding arched areas of the housing, and an opening of the housing is tightly sealed off by said insert with the exception of a gap.
Claim 8
Dependent Claim
40 words
An oil separator according to claim 6, wherein the wall is arranged above the first oil collecting area and another wall is arranged above the second oil collecting area and partially projects into a discharge connection piece of the housing.
Claim 9
Dependent Claim
50 words
An oil separator according to claim 7, wherein the housing has an open side with an outwardly projecting surrounding flange which, on its underside, has a groove surrounding a recess which is open toward the internal wall and in which a projection of the insert is arranged in the recess.
Claim 10
Dependent Claim
50 words
An oil separator according to claim 1, wherein the housing has an open side with an outwardly projecting surrounding flange which, on its underside, has a groove surrounding a recess which is opened toward the internal wall and in which a projection of the insert is arranged in the recess.
References Cited (Backward Citations)
US2849994A
Cited
US4565164A
Cited
JPS60162005A
Cited
US4723529A
Cited
DE3625836A1
Cited
DE3713210A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |