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. 30, 2007
Filed:
Sep. 27, 2005
Applicants:
Gary D. Bourn, San Antonio, TX (US);
Jack A. Smith, Hendersonville, NC (US);
Jess W. Gingrich, San Antonio, TX (US);
Inventors:
Gary D. Bourn, San Antonio, TX (US);
Jack A. Smith, Hendersonville, NC (US);
Jess W. Gingrich, San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 1/00 (2006.01); B60T 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine control strategy that ensures that NOx emissions from the engine will be maintained at an acceptable level. The control strategy is based on a two-dimensional fuel-air curve, in which air manifold pressure (AMP) is a function of fuel header pressure and engine speed. The control strategy provides for closed loop NOx adjustment to a base AMP value derived from the fuel-air curve.