Fuel pump

Patent metadata

Field	Value
Publication number	US-2016201680-A1
Application number	US-201414912544-A
Country	US
Kind code	A1
Filing date	Sep 3, 2014
Priority date	Sep 17, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

A fuel chamber is formed between a pump arrangement and a motor arrangement, and outer flow passages are formed between a stator of the motor arrangement and a housing. Fuel, which is discharged from a discharge port of the pump arrangement, is outputted to an outside of the housing from a fuel discharge conduit that is formed on a side of the motor arrangement, which is opposite from the pump arrangement, after passing through the motor arrangement. At a time of performing electroplating on the stator, electrode contact portions, to which electrodes can contact, is formed in an outer wall of the stator, which forms the outer flow passages.

First claim

1 . A fuel pump comprising:
a pump arrangement that has:
a casing that includes a pump chamber, wherein the pump chamber is communicated with a suction port, through which fuel is drawn into the pump chamber;
an impeller that pressurizes the fuel in the pump chamber; and
a discharge port that discharges the fuel, which is pressurized through rotation of the impeller, from the pump chamber to an outside of the casing;
a motor arrangement that has:
a rotor that is placed on one axial si…

Assignees

• Denso Corp

Inventors

• Hayakawa Tetsuo
• Sakai Hiromi
• Nagata Kiyoshi

Classifications

• F04D29/528

  Mechanical Engineering · mapped topic

• H02K7/14

  Electricity · mapped topic

• F02M2037/082

  Mechanical Engineering · mapped topic

• H02K3/44

  Electricity · mapped topic

• H02K5/12

  Electricity · mapped topic