Title:
VANE PUMP FOR COMPRESSIBLE FLUID
Document Type and Number:
WIPO Patent Application WO/2016/181428
Kind Code:
A1
Abstract:
The present invention prevents or inhibits, in reverse rotation of a rotor, application of excessive load to a vane etc. due to a lubricating oil (non-compressible fluid) stored in a volume changeable chamber, while avoiding increase in main body size and increase in production cost. This vane pump (1) for compressible fluid is provided with: a housing (10); a rotor (20) that is arranged in the housing (10) so as to be rotatable and that defines a pump chamber (2) between the rotor (20) and the housing (10); and one or more vanes (30) that are held in vane grooves (21) formed in the rotor (20) so as to be movable radially forward and backward and that partition the pump chamber (2) into a plurality of volume changeable chambers (3). The vanes (30) are each provided with a lubricant releasing means (32) that releases, in reverse rotation of the rotor (20), a lubricating oil (L) stored in one volume changeable chamber (3C) into another volume changeable chamber (3A) that is adjacent to the volume changeable chamber (3C) in the forward rotating direction.
Inventors:
KOMAI TSUKASA (JP)
Application Number:
PCT/JP2015/002453
Publication Date:
November 17, 2016
Filing Date:
May 14, 2015
Export Citation:
Assignee:
NISSAN MOTOR LIGHT TRUCK CO LTD (JP)
International Classes:
F04C18/344
Foreign References:
| JPS6323392B2 | 1988-05-16 | |||
| JPH0814174A | 1996-01-16 | |||
| JPH1159900A | 1999-03-02 | |||
| JPS5484613U | 1979-06-15 | |||
| US20140219853A1 | 2014-08-07 |
Attorney, Agent or Firm:
MORI, Tetsuya et al. (JP)
Woods Tetsuya (JP)
Woods Tetsuya (JP)
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