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.

Date of Patent:
Nov. 23, 1993

Filed:

Jul. 31, 1992
Applicant:
Inventors:

Sachito Fujimoto, Wako, JP;

Fumio Hosoda, Wako, JP;

Masakazu Kitamoto, Wako, JP;

Kojiro Tsutsumi, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ; F02B / ;
U.S. Cl.
CPC ...
123520 ; 1231 / ;
Abstract

An evaporative fuel-purging control system for an internal combustion engine incorporates a flowmeter arranged across a purging passage for outputting an output value indicative of the flow rate of a mixture of evaporative fuel and air being purged through the purging passage. Abnormality of the flowmeter is determined, based on a value of the output value therefrom assumed when the purging of the gaseous mixture is stopped. Alternatively or in combination, abnormality of the flowmeter is determined, based on a value of the output value therefrom assumed when the purging of the gaseous mixture is resumed after stoppage thereof.


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Fujimoto, Sachito. (1993). Evaporative fuel-purging control system for internal combustion engines (U.S. Patent No. 5263461). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5263461

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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