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. 27, 2007
Filed:
Aug. 30, 2005
Rudolf H. Stanglmaier, Fort Collins, CO (US);
Ryan C. Roecker, San Antonio, TX (US);
Charles E. Roberts, Jr., San Antonio, TX (US);
Lee G. Dodge, San Antonio, TX (US);
Christopher J. Chadwell, San Antonio, TX (US);
Darius Mehta, San Antonio, TX (US);
Daniel W. Stewart, Helotes, TX (US);
Rudolf H. Stanglmaier, Fort Collins, CO (US);
Ryan C. Roecker, San Antonio, TX (US);
Charles E. Roberts, Jr., San Antonio, TX (US);
Lee G. Dodge, San Antonio, TX (US);
Christopher J. Chadwell, San Antonio, TX (US);
Darius Mehta, San Antonio, TX (US);
Daniel W. Stewart, Helotes, TX (US);
Southwest Research Institute, San Antonio, TX (US);
Abstract
A method for controlling the temperature and/or space velocity of exhaust gas provides control of the maximum temperature of the exhaust gas to prevent thermal damage to the Diesel engine components and associated aftertreatment devices during regeneration of the aftertreatment devices. The method includes controlling intake and/or exhaust valve opening timing and duration, either singly or in combination with selective individual cylinder cutout, in response to sensed engine operating parameters.