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. 18, 1977
Filed:
Feb. 19, 1975
Claude Leichle, Le Pecq, FR;
Regie Nationale des Usines Renault, Boulogne-Billancourt, FR;
Automobiles Peugeot, Paris, FR;
Abstract
An apparatus and method for detecting faulty combustion in an internal combustion engine. The series combination of a voltage source and a resistor are connected across the electrodes of a spark plug and the magnitude and shape of the voltage waveform across the resistor is indicative of whether or not a spark has occurred and whether or not combustion has occurred. An electronic processing circuit is provided for actuating an alarm or affecting the operations of some part of the engine or automobile when it is determined either that a spark has not occurred at the proper time or that a predetermined minimum number of consecutive sparks has occurred without the occurrence of combustion.