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Patent Searching and Data


Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2016/166936
Kind Code:
A1
Abstract:
A fuel pump is provided with an outer gear, an inner gear (120) that meshes eccentrically with the outer gear and that has a receiving hole (126) extending in an axial direction, a rotating shaft, a contact part (165) that is formed to be able to make contact with the receiving hole (126) and that transmits drive force of the rotating shaft to the receiving hole (126) to rotate the inner gear (120), and a pump housing that has a first component and a second component sandwiching the inner gear (120) from both axial sides, the pump housing rotatably accommodating both gears. Both gears rotate while expanding and constricting the volume of the pump chambers therebetween, whereby fuel is sequentially drawn into and then discharged from the pump chambers. The receiving hole (126) and/or the contact part (165) has an inclined surface (127, 166) that is inclined relative to the axial direction. Rotation of the rotating shaft towards the drive rotation side causes the receiving hole (126) to be pushed to the first component side in the axial direction as well as the circumferential direction, due to contact with the contact part (165) via the inclined surface (127, 166).

Inventors:
FURUHASHI, Daiji (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
SAKAI, Hiromi (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2016/001714
Publication Date:
October 20, 2016
Filing Date:
March 24, 2016
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F04C2/10; F02M37/10; F04C14/10; F04C15/00
Foreign References:
JP2011149317A2011-08-04
JP2001280261A2001-10-10
Attorney, Agent or Firm:
KIN, Junhi (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, 〒4600003, JP)
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