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.:
Date of Patent:
Jun. 10, 2003
Filed:
Jan. 24, 2001
Emi Kawasumi, Yokohama, JP;
Yasukazu Iwasaki, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A fuel cell system includes an evaporator composed of a cross type heat exchanger adapted to produce fuel containing steam and methanol vapor that are evaporated with heating gas exhausted from a combustor . The evaporator has first and second heat exchanger sections and having respective evaporating heat transfer surfaces, and first and second liquid sump sections and formed in the vicinities of the respective heat transfer surfaces and having variable volumes, respectively. The evaporator includes first and second volume control devices and that control the volumes of the liquid sump sections and such that fuel vapor is produced at a demanded amount to meet load variations of a vehicle.