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. 15, 2002
Filed:
Aug. 18, 2000
Curtis Paul Ritter, Dearborn, MI (US);
Marleen Frances Thompson, Sterling Heights, MI (US);
Jeffery Scott Hawkins, Framington Hills, MI (US);
Detroit Diesel Corporation, Detroit, MI (US);
Abstract
A system and method for controlling engine speed of an internal combustion engine provide automatically returning to a set speed selected with a hand throttle after operating at idle or near idle. The system and method are particularly suited for operation in driving a mud pump used in petroleum drilling applications where the operator dials-in a desired operating speed corresponding to a desired pumping rate. The engine is returned to idle or near idle to allow additional sections of pipe to be added. The engine then automatically returns to the previously selected set speed without additional manipulation of the hand throttle. In one embodiment, dual hand throttles are provided to support remote station operation and control of the engine speed.