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:
Sep. 13, 1988
Filed:
Dec. 10, 1985
Hiroyoshi Suzuki, Hyogo, JP;
Seiya Kominami, Hyogo, JP;
Mitsubishi Denki Kabushiki, Tokyo, JP;
NGK Spark Plug Co., Ltd., Nagoya, JP;
Abstract
An air/fuel ratio detector includes an exhaust diffusion chamber having one wall formed by an oxygen pump and another wall formed by an oxygen-concentration difference-actuated electrochemical cell that generates an oxygen differential signal corresponding to the difference in oxygen concentration between exhaust gas in the diffusion chamber and the ambient atmosphere. The differential signal is compared to a reference signal and the difference is used to control a current supplied to the oxygen pump in order to control the oxygen concentration in the exhaust gas. The current level is an indication of the existing air/fuel ratio.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile