Patent · US Expired

Method of and device for operating a multi-cylinder combustion engine with variable compression ratio

US6910454B2 · kind B2 · utility

2Cited by

4References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Udo Sieber · Bietigheim, DE
Jochen Laubender · Ingolstadt, DE
Andre-Francisco Casal Kulzer · Eppelheim, DE

Key dates

Filing date	Dec 17, 2003
Grant date	Jun 28, 2005
Priority date	—
Expiry date	Dec 17, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02N2019/008
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a multi-cylinder combustion engine with a variable compression ratio a start of the combustion engine is performed with a compression ratio which is reduced relative to compression ratios in normal operation of the combustion engine.

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