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:
Jun. 03, 2003
Filed:
Jun. 02, 2001
Alfred Ottowitz, Reichertshofen, DE;
Rainer Wurms, Lenting, DE;
Ralf Budack, Ingolstadt, DE;
Thomas Rieger, Ingolstadt, DE;
Murat Serifsoy, Ingolstadt, DE;
Audi AG, , DE;
Abstract
In a direct injection internal combustion engine having per cylinder at least two intake valves mounted side by side, at least one exhaust valve , a more or less coaxial ignition device , an injection valve , and a piston with combustion chamber trough , the injection valve being mounted on the intake side, improved mixture preparation and combustion characterized by low fuel consumption and low exhaust emissions are achieved by mounting,the center of the combustion chamber trough in the piston noticeably displaced relative to the axis of the cylinder in the direction of at least one exhaust valve , and are achieved in that the boundary wall of the combustion chamber trough extends in projection along the axis of the cylinder between the ignition device and injection valve