Patent · US Expired

Internal combustion engine with pressure lubrication by the dry sump principle

US7819227B2 · kind B2 · utility

3Cited by

21References

9Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Erwin Rutschmann · Tiefenbronn, DE
Thorsten Wieg · Pforzheim, DE

Key dates

Filing date	Apr 15, 2005
Grant date	Oct 26, 2010
Priority date	—
Expiry date	Apr 25, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M13/02
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An internal combustion engine having pressure lubrication according to the dry sump principle, in particular for an opposed cylinder engine, has a crankcase in which an oil suction space (dry sump) is formed in the lower part. The lubricant oil is conveyed from the oil suction space to an oil supply container (wet sump) via an oil return pump equipped with an oil suction line. The lubricant oil in the oil supply tank and/or in the oil supply space is conveyed to the consumer via a main delivery pump. An annular space arranged around the cylinder is provided as part of the oil returned to the oil supply tank.

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