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.
Patent No.:
Date of Patent:
Nov. 09, 2004
Filed:
Nov. 29, 2002
Manfred Vogel, Ditzingen, DE;
Werner Herden, Gerlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating a direct-injecting gasoline internal combustion engine ( ), especially of a motor vehicle, wherein the gasoline is injected directly into the combustion chamber ( ) of the engine ( ) and an ignition spark is ignited in the combustion chamber ( ). In order to be able to reliably ignite an air/gasoline mixture with a relatively low ignition voltage notwithstanding a relatively large electrode gap of a spark plug ( ) of the engine ( ), it is suggested that the ignition spark be ignited in advance of the start of injection ( ) and that a spark burn duration ( ) be maintained up to past the end of the injection ( ).