Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2015/045294
Kind Code:
A1
Abstract:
A fitting hole (66) of an impeller (65) for fitting a shaft (52) therein comprises: a first impeller flat surface (661) that can come into contact with a first shaft flat surface (523); a second impeller flat surface (662) that can come into contact with a second shaft flat surface (524); and a first impeller curved surface (663) and a second impeller curved surface (664) that connect the first shaft flat surface (523) with the second shaft flat surface (524). A first groove (665) and a second groove (666) communicating with the fitting hole (66) are formed in the first impeller curved surface (663) and the second impeller curved surface (664). When the first shaft flat surface (523) and the first impeller flat surface (661) come into contact with each other as the shaft (52) rotates in one direction, the first groove (665) deforms due to an action force, and the second shaft flat surface (524) and the second impeller flat surface (662) come into contact with each other.

More Like This:
JPH04350394FUEL PUMP
JP2008005689FUEL PUMP
Inventors:
SAKAI, Hiromi (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
HIDAKA, Yuuji (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2014/004601
Publication Date:
April 02, 2015
Filing Date:
September 08, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F04D5/00; F04D29/043; F04D29/20
Foreign References:
JP2003532010A2003-10-28
JPS60156999A1985-08-17
JPS586991U1983-01-17
JPS63177693U1988-11-17
JPS50145005U1975-12-01
JPS6212791U1987-01-26
Attorney, Agent or Firm:
KIN, Junhi (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, 〒4600003, JP)
Download PDF: