Invention Grant
- Patent Title: Electric fuel pump capable of supplying fuel at high flow rate
- Patent Title (中): 能够以高流量供应燃料的电动燃料泵
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Application No.: US12535962Application Date: 2009-08-05
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Publication No.: US08257064B2Publication Date: 2012-09-04
- Inventor: Yuichirou Oota , Masaya Ootake , Kiyoshi Nagata
- Applicant: Yuichirou Oota , Masaya Ootake , Kiyoshi Nagata
- Applicant Address: JP Kariya
- Assignee: Denso Corporation
- Current Assignee: Denso Corporation
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2008-202608 20080806; JP2009-028749 20090210
- Main IPC: F04B35/04
- IPC: F04B35/04

Abstract:
An electric fuel pump is disclosed which includes a pump portion, a motor portion, a housing, and a fuel passage. The pump portion pressurizes fuel. The motor portion drives the pump portion. The motor portion includes a rotor with a rotating shaft and a stator that surrounds an outer periphery of the rotor. The housing surrounds, at least, an outer periphery of the stator of the motor portion. The fuel passage, through which the fuel pressurized by the pump portion passes the motor portion, is made up of a clearance between the outer periphery of the stator of the motor portion and an inner periphery of the housing. The clearance extends, at least, in the axial direction of the rotating shaft of the rotor of the motor portion.
Public/Granted literature
- US20100034674A1 ELECTRIC FUEL PUMP CAPABLE OF SUPPLYING FUEL AT HIGH FLOW RATE Public/Granted day:2010-02-11
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