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:
Oct. 01, 1991
Filed:
Jun. 25, 1990
Asao Sasaki, Chiba, JP;
Yosuke Kubota, Tokyo, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus is disclosed for warning of the abnormality of an engine including a magneto generating an a.c. voltage and an ignition coil which includes a first signal generation section for generating a first signal including an electric quantity corresponding to the insulation resistance of lubricating oil, a temperature detecting section for producing temperature signal, a reference signal generation section for generating a reference signal in response to the temperature signal, an oil-shortage judging section for comparing the first signal and the reference signal to determine that the engine has a shortage of oil when the first signal is larger than the reference signal and generating a shortage signal, a control section for performing a short-circuit of a primary side of the ignition coil to produce a short-circuit current in response to the shortage signal and an oil-shortage display section for displaying the warning of the shortage of oil in response to the short-circuit current.