Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FUEL PUMP
Document Type and Number:
WIPO Patent Application WO/2016/103663
Kind Code:
A1
Abstract:
A fuel pump is provided with: an outer gear having a plurality of inner teeth; an inner gear having a plurality of external teeth, the inner gear meshing with the outer gear while being eccentric in a direction of eccentricity; and a pump housing (10) for accommodating the outer gear and the inner gear in a rotatable manner, a discharge port (17) for discharging fuel being formed in the pump housing. The outer gear and the inner gear rotate while a plurality of pump chambers formed between the two gears expand and contract in volume, whereby fuel is sequentially drawn into the pump chambers and discharged from the pump chambers to the discharge port (17). A pump casing (16) of the pump housing (10) has a reinforcing rib (60) for reinforcing the pump casing (16) by spanning the discharge port (17) in an intersecting direction that intersects the direction in which the inner gear rotates (Rig). The reinforcing rib (60) has, on the side facing the pump chambers, an inclined surface (62) that is inclined in the direction in which the inner gear rotates (Rig).

Inventors:
SAKAI, Hiromi (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
FURUHASHI, Daiji (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2015/006302
Publication Date:
June 30, 2016
Filing Date:
December 17, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F04C2/10; F02M37/10; F04C15/00; F04C15/06
Foreign References:
US20060153706A12006-07-13
JP2012225259A2012-11-15
JPH0688576A1994-03-29
US2339966A1944-01-25
JP2006250072A2006-09-21
Attorney, Agent or Firm:
KIN, Junhi (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, 〒4600003, JP)
Download PDF:



 
Previous Patent: ELECTROMAGNETIC ACTUATOR

Next Patent: POSITION ESTIMATING DEVICE