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:
May. 27, 2014
Filed:
Oct. 25, 2006
Yasushi Ichikawa, Kanagawa, JP;
Yasushi Ichikawa, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A fluid passage structure for a fuel cell stack according to this invention comprises an internal manifold () formed on an inner side of a laminated body () of a plurality of fuel cells in a lamination direction, an external fluid passage () that supplies a fluid to the internal manifold (), and a connection portion () that connects the fluid passage to the internal manifold. Each fuel cell comprises an in-cell fluid passage () that is connected to the internal manifold () from an orthogonal direction. By forming the connection portion () such that a swirl is generated in the internal manifold () using the energy of the fluid that flows into the internal manifold () from the fluid passage (), a pressure deviation in a transverse section of the internal manifold () is reduced, and the fluid supply rate to each in-cell fluid passage () is made even.