Invention Application
- Patent Title: Hydrogen generator and fuel cell system
- Patent Title (中): 氢发生器和燃料电池系统
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Application No.: US11039082Application Date: 2005-01-21
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Publication No.: US20060083956A1Publication Date: 2006-04-20
- Inventor: Kunihiro Ukai , Kiyoshi Taguchi , Hidenobu Wakita , Seiji Fujihara , Yukimune Kani
- Applicant: Kunihiro Ukai , Kiyoshi Taguchi , Hidenobu Wakita , Seiji Fujihara , Yukimune Kani
- Applicant Address: JP Osaka
- Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Current Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Current Assignee Address: JP Osaka
- Priority: JP2004-014751 20040122
- Main IPC: H01M8/00
- IPC: H01M8/00

Abstract:
In a hydrogen generator according to the invention, a reformer temperature sensor detects the temperature of a reformer at a start of a stop operation of a hydrogen generator. In a controller, a processing and controlling portion compares the detected temperature with first to fourth reference temperatures pre-stored in a storage portion, and determines which of the following conditions is the temperature condition of the hydrogen generator at the stop; a first condition in which water condensation occurs, a second condition in which water condensation and carbon deposition are avoidable, a third condition in which carbon deposition occurs, a fourth condition in which disproportionation reaction occurs, and a fifth condition in which oxidization of catalyst occurs. According to the determination result, an appropriate setting is selected among first to fifth replacement settings pre-stored in the controller corresponding to the first to fifth conditions, and an internal gas replacement operation is performed according to the selected setting.
Public/Granted literature
- US07419518B2 Hydrogen generator and fuel cell system Public/Granted day:2008-09-02
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