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:
May. 23, 2006
Filed:
Oct. 24, 2002
Applicants:
Hans Felix Seitz, Graz, AT;
Gabor Hrauda, Graz, AT;
Inventors:
Hans Felix Seitz, Graz, AT;
Gabor Hrauda, Graz, AT;
Assignee:
AVL List GmbH, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 25/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for carrying out an internal exhaust gas recirculation to the combustion chamber of a Diesel internal combustion engine according to which the inlet valve is briefly opened during the exhaust cycle. According to the invention, the start (H) of the inlet valve approach stroke (H) lies in the range of 180° to 210° crank angle (KW) after the upper dead center (OTZ) of ignition, thereby improving emission performance in the low speed range and in the medium and high speed range.