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:
Jun. 13, 1995
Filed:
Dec. 08, 1992
Toshio Ohsawa, Hyogo, JP;
Shigemi Murata, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A combustion detect device for use in an internal combustion engine including an ignition coil in which a high voltage for ignition is generated at a secondary winding when the current of a primary winding is cut off, and an ignition plug for discharging and igniting a mixture gas when said high voltage for ignition is applied thereto, the combustion detect device comprises an ion current detection device for detecting an ion current generated due to combustion of a mixture gas by applying a voltage to an ignition plug and a restriction device for restricting a voltage generated in the secondary winding when a primary winding is turned on to conduct.