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:
Sep. 03, 2013
Filed:
Oct. 26, 2009
Shawn M. Gallagher, Erie, PA (US);
Roy Primus, Niskayuna, NY (US);
Bhaskar Tamma, Karnataka, IN;
Jennifer Topinka, Waukesha, WI (US);
Robert Mischler, Erie, PA (US);
Rajani Boddu, Erie, PA (US);
Shawn M. Gallagher, Erie, PA (US);
Roy Primus, Niskayuna, NY (US);
Bhaskar Tamma, Karnataka, IN;
Jennifer Topinka, Waukesha, WI (US);
Robert Mischler, Erie, PA (US);
Rajani Boddu, Erie, PA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A controller, in electrical communication with the one or more of the injectors and a high-pressure fuel pump, generates a first signal responsive to which the valve in the injector opens or closes and a second signal responsive to which the high-pressure fuel pump increases or decreases the pressure level in the fuel accumulator. The system may also include one or more sensors to detect a pressure within the air manifold and to detect the pressure within the fuel accumulator. The controller is programmed to calculate an in-cylinder gas pressure. When the engine is operating at a maximum engine load and the in-cylinder gas pressure reaches or exceeds a maximum pressure limit, the controller transmits one or more signals to adjust the fuel injection timing and/or adjust the pressure in the fuel accumulator to maintain NOand fuel consumption within acceptable limits.