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:
Jan. 24, 2012
Filed:
Jul. 08, 2009
Applicants:
Xin He, Denver, CO (US);
Russell P. Durrett, Bloomfield Hills, MI (US);
Inventors:
Xin He, Denver, CO (US);
Russell P. Durrett, Bloomfield Hills, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 47/08 (2006.01); F02B 47/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for controlling combustion in a direct-injection diesel engine includes monitoring a crankshaft rotational position of a cylinder of the engine, monitoring an engine load, determining an intake stroke within the cylinder based upon the crankshaft rotational position, and when the engine load is less than a threshold engine load, opening an exhaust valve for the cylinder during a portion of the intake stroke.