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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 7223489 B1

PDFFull Text
Expired
Date of Patent:
May. 29, 2007

Filed:

Jul. 16, 2003

Hydrogen purge control apparatus

Applicants:

Kenichiro Ueda, Utsunomiya, JP;

Masanori Hayashi, Utsunomiya, JP;

Akio Yamamoto, Utsunomiya, JP;

Yoshikazu Murakami, Utsunomiya, JP;

Satoshi Aoyagi, Kawachi-gun, JP;

Inventors:

Kenichiro Ueda, Utsunomiya, JP;

Masanori Hayashi, Utsunomiya, JP;

Akio Yamamoto, Utsunomiya, JP;

Yoshikazu Murakami, Utsunomiya, JP;

Satoshi Aoyagi, Kawachi-gun, JP;

Assignee:

Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;

Attorneys:

Lahive & Cockfield, LLP

Anthony A. Laurentano, Esq.

Primary Examiner:

Patrick Joseph Ryan

Assistant Examiner:

Angela J Martin

Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 2/00 (2006.01); H01M 2/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A hydrogen purge control apparatus includes a fuel cell stack from which hydrogen is purged as necessary, a purged hydrogen dilution device which is disposed downstream of the fuel cell stack, and which has a chamber formed therein, a first inlet for purged hydrogen, a second inlet for air, and an outlet for diluted hydrogen, a regulator which is disposed between the fuel cell stack and the first inlet, and which is provided for regulating an amount of the purged hydrogen flowing into the purged hydrogen dilution device, and a control unit having a hydrogen concentration estimating section that is configured to estimate the hydrogen concentration at the outlet of the purged hydrogen dilution device based on an operating state of the fuel cell stack. The regulator is operated by the control unit depending on the hydrogen concentration estimated by the hydrogen concentration estimating section.

Find Patent Forward Citations

Ueda, Kenichiro. (2007). Hydrogen purge control apparatus (U.S. Patent No. 7223489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7223489

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

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