EP0933507B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Device for crankcase ventilation for an internal combusion engine
Assignee: Mercedes Benz Group AG
•
Filing: 1998-12-17
•
Granted: 2002-09-25
•
Expires: 2018-12-17
Abstract
No abstract record available.
Inventors
- 👤 Christian Hoefer
- 👤 Thomas Kettner
- 👤 Siegfried Weber
- 👤 Roland Weik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04; F01M2013/0422
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
132 words
Ventilation device for a crankcase of an internal
combustion engine, with a powered centrifugal oil
separator (3) arranged in such a way that it can be
rotated about a rotation axis (5) which has a case (4)
with an inlet channel (6) for the supply of a mixture of
oil and air and an outlet opening (7) for the removal of
pure air, wherein the inlet channel (6) runs radially
offset and essentially axis parallel to the rotation axis
(5) of the oil separator (3) characterised in that a closure cover of the case (4) fixed on the crankcase (2)
is provided and between the closure cover (12) and the
case (4) a feed channel (13) is formed which is set away
from the inlet channel (6) and communicates with the same.
Claim 2
Dependent Claim
27 words
Ventilation device according to claim 1 characterised in that the outer wall (8) of the inlet channel (6) is part of the
wall of the case (4).
Claim 3
Dependent Claim
30 words
Ventilation device according to claim 1 or 2 characterised in that drainage bores (9) for oil running out are provided in the
outer wall (8) of the inlet channel (6).
Claim 4
Dependent Claim
34 words
Ventilation device according to one of the claims 1
to 3 characterised in that a dividing wall (10) is formed between the inlet channel
(6) and the inner area of the oil separator (3).
Claim 5
Dependent Claim
20 words
Ventilation device according to one of the claims 1
to 4 characterised in that the inlet channel (6) is annular.
Claim 6
Dependent Claim
27 words
Ventilation device according to one of the claims 1
to 5 characterised in that baffles (11) for the oil separation are arranged in the
inlet channel (6).
Claim 7
Dependent Claim
25 words
Ventilation device according to claim 6 characterised in that the baffles (11) are formed as webs projecting at an angle
into the inlet channel (6).
Claim 8
Dependent Claim
31 words
Ventilation device according to claim 6 or 7 characterised in that at least two baffles (11) lying behind each other are
arranged in the axial direction of the inlet channel (6).
Claim 9
Dependent Claim
22 words
Ventilation device according to one of the claims 1
to 8 characterised in that the feed channel (13) is deflected by 180°.
Claim 10
Dependent Claim
36 words
Ventilation device according to one of the claims 1
to 9 characterised in that the case (4) of the centrifugal oil separator (3) is
connected in a rotationally secure way with a motorised
compensating shaft (14).
References Cited (Backward Citations)
No citation records indexed.
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