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. 28, 2017
Filed:
Aug. 04, 2011
Kaoru Nomichi, Ono, JP;
Yutaka Suzuki, Kobe, JP;
Makoto Ninomiya, Kobe, JP;
Mikiya Shinohara, Yokohama, JP;
Masato Odashima, Yokosuka, JP;
Kaoru Nomichi, Ono, JP;
Yutaka Suzuki, Kobe, JP;
Makoto Ninomiya, Kobe, JP;
Mikiya Shinohara, Yokohama, JP;
Masato Odashima, Yokosuka, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
A hydrogen gas supply device supplies hydrogen gas to a fuel cell stack and includes an electromagnetic pressure regulating valve that regulates the pressure of the hydrogen gas to low pressure. The electromagnetic pressure regulating valve includes a housing, and a valve passage connecting a primary port and a secondary port is formed in the housing. A valve body controls an opening degree of the valve passage and is provided in the housing. A high-pressure sealing member and low-pressure sealing member are provided on an outer periphery of the valve body. The high-pressure sealing member and the low-pressure sealing member are provided in this order from one end side of the valve body to the other end side thereof. The electromagnetic pressure regulating valve further includes a housing pressure equalizing passage connecting the secondary port and a buffer chamber formed between the high-pressure sealing member and the low-pressure sealing member.