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:
Feb. 02, 1993
Filed:
Nov. 21, 1990
Wataru Fukui, Himeji, JP;
Toshio Iwata, Himeji, JP;
Yutaka Ohashi, Himeji, JP;
Masayuki Ikeuchi, Himeji, JP;
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
A cylinder identification apparatus for a multi-cylinder internal combustion engine. The apparatus includes the following units. A reference signal generator that senses the rotation of an engine crankshaft and generates a reference signal indicating each time the crankshaft is at a prescribed rotational angle. An identification signal generator senses the rotation of the engine camshaft or other member coupled to and rotating at 1/2 the speed of the crankshaft and generates a cylinder identification signal having a different form for different cylinders of the engine. A control unit identifies each cylinder of the engine based on the form of the cylinder identification signal.