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. 06, 2023
Filed:
Dec. 22, 2021
Honda Motor Co., Ltd., Tokyo, JP;
Kokoku Intech Co., Ltd., Tokyo, JP;
Hiroshi Morikawa, Wako, JP;
Keisuke Ando, Wako, JP;
Akihiro Noda, Wako, JP;
Koji Hirayama, Tokyo, JP;
Keisuke Mori, Tokyo, JP;
Hirotoshi Honma, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Kokoku Intech Co., Ltd., Tokyo, JP;
Abstract
A fluid flow field of a separator of a fuel cell stack allows a fluid to flow in a separator surface direction. A rubber seal member provides a seal between the fluid passage and the fluid flow field. The tunnel portion intersects the rubber seal member at an intersection. The tunnel portion allows the fluid flow field and the fluid passage to connect to each other. In the rubber seal member, a first portion protrudes from a flat portion in a stacking direction, and a second portion protrudes from a protruding end surface of a tunnel portion in the stacking direction.