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:
Jan. 15, 1985
Filed:
Mar. 16, 1982
Toshihiro Takei, Kariya, JP;
Kazuma Matsui, Toyohashi, JP;
Yoshiyuki Hattori, Toyoake, JP;
Kiyohiko Watanabe, Kariya, JP;
Toshiaki Nakamura, Anjo, JP;
Shunsaku Ohnishi, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An electrically operated fuel pump device for use in vehicles comprises a regenerative pump component and an electric motor component operatively connected to the regenerative pump component to actuate the same. The regenerative pump component includes a casing defining therein a pump chamber and a closed vane type impeller rotatably disposed within the pump chamber. The impeller has an outer peripheral portion thereof cooperating with the pump chamber to define a pump flow passage. The impeller has in the outer peripheral portion a plurality of circumferentially spaced vane grooves formed in opposite end faces of the impeller. The impeller has its outer diameter within a range of approximately 20-65 mm. A flow passage representative dimension defined by S/l is within a range of approximately 0.4-2 mm where S is a cross-sectional area of the pump flow passage and l is a cross-sectional peripheral length of the outer peripheral portion of the impeller.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile