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:
Mar. 28, 2000

Filed:

May. 27, 1998
Applicant:
Inventors:

Hajime Uto, Wako, JP;

Toshiaki Ichitani, Wako, JP;

Yoshio Nuiya, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123516 ; 123520 ;
Abstract

An evaporative emission control system for an internal combustion engine includes of an evaporative fuel passage extending between the fuel tank and the intake system of the engine, and a control valve arranged across the evaporative fuel passage for opening and closing the evaporative fuel passage. The opening of the control valve is controlled such that the interior of the fuel tank is under negative pressure during operation and stoppage of the engine. The opening of the control valve is set to a desired value according to operating conditions of the engine.


Find Patent Forward Citations

Uto, Hajime. (2000). Evaporative emission control system for internal combustion engines (U.S. Patent No. 6041761). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6041761

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

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