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:
Jul. 24, 2012

Filed:

Feb. 19, 2009
Applicants:

Jin S. Heo, Suwon-si, KR;

Takami Higashi, Suwon-si, KR;

Jae Hyuk OH, Seongnam-si, KR;

Inventors:

Jin S. Heo, Suwon-si, KR;

Takami Higashi, Suwon-si, KR;

Jae Hyuk Oh, Seongnam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A stable fuel supply system in a fuel cell system produces heat and electricity by combining hydrogen modified from a major raw material selected from various hydrogen compounds, with oxygen existing in air. A fuel supply device and a fuel supply method in a fuel cell system, which automate a steam to carbon ratio (S/C) control and a lamda control, and achieve a fuel cell system operation efficiently and stably coping with pressure loss and pulsation occurring within the system, while using a minimum number of balance-of-plant (BOP) units. A method more efficiently and precisely supplies fuel during the start-up and operation of the fuel cell system, while preventing flame failure of a burner and maintaining an appropriate carbon monoxide concentration even when an abrupt flow rate variation occurs. Also, an operating method improves functions associated with a decomposition ability based on selection of the specification of a fuel pump, and thus, is more economical and stable in terms of the costs and configuration of the fuel cell system.


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