Title:
FUEL SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2015101981
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel supply device of high reliability by significantly reducing noise.SOLUTION: A fuel pump is composed of a pump base having a fuel suction port and a fuel discharge port, and an impeller having a plurality of impeller blades pressurizing a fuel sucked from the fuel suction port of the pump base by rotation, and delivering the fuel from the fuel discharge port. A relationship of an angle θ1 formed by OA and OB, and an angle θ2 formed by OC and OD satisfies "θ1+θ2=360°/number of sheets of blades", on the impeller blade, a point intersecting with the fuel discharge port of the pump base first is A, and a point intersecting with the fuel discharge port of the pump base last is B, and on the fuel discharge port of the pump base, a point intersecting with the impeller blade first is C, a point intersecting with the impeller blade last is D, and further a rotation center of the impeller is O.
Inventors:
HAMAYA YUTARO
Application Number:
JP2013241526A
Publication Date:
June 04, 2015
Filing Date:
November 22, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F04D5/00; F02M37/08
Domestic Patent References:
| JP2007132196A | 2007-05-31 | |||
| JP2005320961A | 2005-11-17 |
Attorney, Agent or Firm:
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
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