Title:
VANE PUMP AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/137209
Kind Code:
A1
Abstract:
A vane pump provided with: a rotor that is connected to a drive shaft; a plurality of vanes that are provided so as to be capable of reciprocal motion in the radial direction with respect to the rotor; a cam ring that has a cam surface along which tips of the vanes slide in accordance with the rotation of the rotor; and a pump body that has a housing recess that houses the cam ring. The cam ring has a ring fitting part that is formed on the outer periphery thereof and that is divided into a plurality of regions and has a ring minor diameter part that is formed on the outer periphery thereof and that has a smaller outer diameter than the ring fitting part. The housing recess of the pump body has a body fitting part into which the ring fitting part fits and a body major diameter part that is formed on the inner periphery thereof, that has a larger inner diameter than the body fitting part, and that is divided into a plurality of regions.
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Inventors:
SUGIHARA MASAMICHI (JP)
FUJITA TOMOYUKI (JP)
NAKAGAWA TOMOYUKI (JP)
KOMIYA TSUTOMU (JP)
FUJITA TOMOYUKI (JP)
NAKAGAWA TOMOYUKI (JP)
KOMIYA TSUTOMU (JP)
Application Number:
PCT/JP2015/056338
Publication Date:
September 17, 2015
Filing Date:
March 04, 2015
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
F04C2/344
Domestic Patent References:
| WO2010006705A2 | 2010-01-21 |
Foreign References:
| JP2007247473A | 2007-09-27 | |||
| JPH09184489A | 1997-07-15 | |||
| JPS58193085U | 1983-12-22 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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