The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 03, 2008

Filed:

Nov. 02, 2006
Applicants:

Dirk Hartmann, Stuttgart, DE;

Werner Mezger, Eberstadt, DE;

Oliver Krannich, Tamm, DE;

Ingo Fecht, Ludwigsburg, DE;

Inventors:

Dirk Hartmann, Stuttgart, DE;

Werner Mezger, Eberstadt, DE;

Oliver Krannich, Tamm, DE;

Ingo Fecht, Ludwigsburg, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/06 (2006.01); F02D 17/02 (2006.01); F02M 63/02 (2006.01); F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
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.


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