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.:

US 10557441 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 11, 2020

Filed:

Mar. 03, 2017
Applicant:

Aisan Kogyo Kabushiki Kaisha, Obu-shi, JP;

Inventors:

Nobuhiro Kato, Tokai, JP;

Daisaku Asanuma, Gamagori, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 25/08 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0836 (2013.01); F02D 41/0045 (2013.01); F02M 25/0809 (2013.01);
Abstract

An evaporated fuel processing device may include: a canister configured to adsorb fuel evaporated in a fuel tank; a purge passage through which a purge gas sent from the canister to the intake passage passes; a control valve provided on the purge passage and having a variable aperture; and a differential pressure sensor configured to detect a pressure difference between an upstream side and a downstream side of the control valve.


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