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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 10434871 B1

PDFFull Text
Date of Patent:
Oct. 08, 2019

Filed:

Dec. 04, 2017

Closed tank system

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Naoki Ogiwara, Wako, JP;

Hiroaki Watanabe, Wako, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Atif H Chaudry

Int. Cl.
CPC ...
B60K 15/035 (2006.01); F16K 24/04 (2006.01); F02M 25/08 (2006.01); B60K 15/03 (2006.01); B60K 15/04 (2006.01); B67D 7/04 (2010.01);
U.S. Cl.
CPC ...
B60K 15/03519 (2013.01); B60K 15/035 (2013.01); B60K 15/03504 (2013.01); B60K 15/04 (2013.01); B67D 7/048 (2013.01); B67D 7/0492 (2013.01); F02M 25/089 (2013.01); F02M 25/0809 (2013.01); F02M 25/0836 (2013.01); F16K 24/04 (2013.01); B60K 2015/0319 (2013.01); B60K 2015/03217 (2013.01); B60K 2015/03289 (2013.01); B60K 2015/03302 (2013.01); B60K 2015/03514 (2013.01); B60K 2015/03552 (2013.01); B60K 2015/03571 (2013.01); F02M 2025/0845 (2013.01); F02M 2025/0863 (2013.01); Y10T 137/7297 (2015.04); Y10T 137/8342 (2015.04);
Abstract

A closed tank system includes: a fuel tank; a canister adapted to adsorb evaporative fuel generated in the fuel tank; a fill-up limiting valve provided inside the fuel tank so as to be communicated with the evaporative fuel discharge passage and adapted to operate to close the evaporative fuel discharge passage when a fuel level reaches a predetermined full tank liquid level; a shut-off valve adapted to operate to open or close the evaporative fuel discharge passage; a fuel remaining amount sensor adapted to detect a remaining amount of fuel; and a hardware processor that causes a control section to carry out control for allowing the shut-off valve to be opened or closed. The hardware processor causes the control section to inhibit the control for allowing the shut-off valve to be opened when an engine is in operation and the detected remaining amount of fuel exceeds a predetermined threshold.

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