Patent · US Active

Method and device for operating an internal combustion engine having multiple cylinders

US7380535B2 · kind B2 · utility

5Cited by

10References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dirk Hartmann · Aßling, DE
Werner Mezger · Weinsberg, DE
Oliver Krannich · Tamm, DE
Ingo Fecht · Ludwigsburg, DE

Key dates

Filing date	Nov 2, 2006
Grant date	Jun 3, 2008
Priority date	—
Expiry date	Nov 2, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/0012
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a device for operating an internal combustion engine having multiple cylinders allows for an operating state of the internal combustion engine to be switched over as quickly as possible following the receipt of a switchover request. For this purpose, at least one intake or exhaust valve of a cylinder is switched off or at least one switched-off intake or exhaust valve of the cylinder is switched on again in at least one operating state of the internal combustion engine in response to the switchover request.

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