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. 09, 1978
Filed:
Feb. 25, 1977
William C Woodruff, St. Charles, MO (US);
Dennis M Lombardo, Warren, OH (US);
Theodore H Horrell, Jr, Cortland, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Upon the closing of the ignition circuit, this Diesel engine warm-up control system operates to establish a glow plug energizing circuit; to energize a 'wait' indicator lamp and to produce a timed glow plug energization cycle signal. Upon the termination of this signal, the glow plug energizing circuit is maintained; the 'wait' indicator lamp is deenergized and a 'crank' indicator lamp is energized. The timed glow plug energization cycle signal is re-initiated upon engine crank to maintain the glow plugs energized for a controlled period of time after engine 'start'. A re-cycle feature which re-cycles the system in the event the engine does not start after crank, an automatic shutdown feature which deenergizes the glow plugs at the conclusion of the controlled period of time after the ignition circuit is closed in the event the engine is not cranked and a fast idle feature which provides engine fast idle during and for a predetermined time period after each cranking period at all engine temperatures are provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile