Patent · US Expired

Device for the ventilation of the crankcase of an internal combustion engine

US7100587B2 · kind B2 · utility

14Cited by

8References

18Claims

0Family size

Assignee

Hengst GmbH & Co. KG · DE

Inventors

Stephan Ahlborn · Senden, DE
Thomas May · Konstanz, DE
Sieghard Pietschner · Greven, DE

Key dates

Filing date	Mar 5, 2002
Grant date	Sep 5, 2006
Priority date	—
Expiry date	Nov 8, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a device (1), for the ventilation of the crankcase (20) of an internal combustion engine (2), with a breather tube (3), running from the crankcase (20) to an inlet manifold (22) on the internal combustion engine (2), in the course of which an oil-mist separator (30) is arranged. The novel device is characterized in that in the course of the breather line (3), a pump device is arranged, by means of which a reduced pressure may be generated in the crankcase (20) relative to ambient pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.