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:
Apr. 10, 2012
Filed:
Feb. 15, 2007
Takafumi Sarata, Chiba, JP;
Norimasa Yanase, Chiba, JP;
Toru Ozaki, Chiba, JP;
Tsuneaki Tamachi, Chiba, JP;
Kazutaka Yuzurihara, Chiba, JP;
Fumiharu Iwasaki, Chiba, JP;
Noboru Ishisone, Chiba, JP;
Takafumi Sarata, Chiba, JP;
Norimasa Yanase, Chiba, JP;
Toru Ozaki, Chiba, JP;
Tsuneaki Tamachi, Chiba, JP;
Kazutaka Yuzurihara, Chiba, JP;
Fumiharu Iwasaki, Chiba, JP;
Noboru Ishisone, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A pressure regulating valve comprises a first pressure deformation portion which receives a pressure on a fuel demand side, a second pressure deformation portion opposed to the first pressure deformation portion and which receives a predetermined pressure, first and second flow passages, and a communication passage for allowing the first and second flow passages to communicate with each other. The first and second flow passages and the communication passage are provided in a space between the first and second pressure deformation portions. A valve member has a connecting portion which extends through the communication passage and connects the first and second pressure deformation portions together, and has a valve element which is provided at the connecting portion and closes the communication passage when moved toward the second pressure deformation portion. When the pressure on the fuel demand side is lower than a predetermined value, the valve element does not close the communication passage, but when the pressure on the fuel demand side is equal to or higher than the predetermined value, the valve element closes the communication passage.