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:
Nov. 11, 2014
Filed:
Jun. 22, 2010
Masato Odashima, Yokosuka, JP;
Keisuke Satou, Ebina, JP;
Takatada Usami, Yokohama, JP;
Kentaro Kono, Yokohama, JP;
Akinobu Moriyama, Yokohama, JP;
Masahiro Haruyama, Yokosuka, JP;
Akira Inoue, Yokohama, JP;
Masato Odashima, Yokosuka, JP;
Keisuke Satou, Ebina, JP;
Takatada Usami, Yokohama, JP;
Kentaro Kono, Yokohama, JP;
Akinobu Moriyama, Yokohama, JP;
Masahiro Haruyama, Yokosuka, JP;
Akira Inoue, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A fuel gas supply device for supplying fuel gas to a fuel cell stack includes a control valve provided in a fuel gas path connecting a fuel tank and the fuel cell stack, an upstream-side pressure sensor and a downstream-side pressure sensor for detecting an upstream-side pressure and a downstream-side pressure, and a programmable controller. The programmable controller calculates a required opening based on a target fuel gas pressure and the downstream-side pressure and calculates an opening time and a closing time based on the required opening and the upstream-side pressure, or calculates an opening time and a closing time based on the target fuel gas pressure and the downstream-side pressure and calculates a required opening based on the opening time and the upstream-side pressure, and controls the control valve using the calculated required opening, opening time and closing time.