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. 29, 2012
Filed:
Sep. 25, 2009
David T. Falkowski, Blaine, MN (US);
Jeffrey D Peterson, St. Paul, MN (US);
Emily A. Blakemore, Minneapolis, MN (US);
Kristopher G. Knight, St. Louis Park, MN (US);
Matthew J. Ethen, New Brighton, MN (US);
David T. Falkowski, Blaine, MN (US);
Jeffrey D Peterson, St. Paul, MN (US);
Emily A. Blakemore, Minneapolis, MN (US);
Kristopher G. Knight, St. Louis Park, MN (US);
Matthew J. Ethen, New Brighton, MN (US);
Cummins Power Generation IP, Inc., Minneapolis, MN (US);
Abstract
A method for operating a four-stroke internal combustion engine including a crankshaft coupled to a piston, which includes moving the piston in accordance with a sequence of four different strokes; mechanically driving an electric power generator with the crankshaft during the operating of the engine; generating a first sensor signal indicative of each revolution of the crankshaft with the crankshaft rotating twice during the sequence of four different strokes; providing a second sensor signal corresponding to a working fluid characteristic of the engine, the working fluid characteristic changing during the sequence of four different strokes of the piston; and timing ignition of the engine as a function of the first sensor signal and the second sensor signal.