Title:
VANE PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/026410
Kind Code:
A1
Abstract:
This vane pump device comprises: a rotor that rotates while supporting a plurality of vanes (30) so as to be movable in a turning radius direction; and a cam ring that has an inner peripheral surface facing an outer peripheral surface of the rotor. The vane pump device transitions to at least a suction step and an ejection step as the volume of a pump chamber defined by the outer peripheral surface of the rotor, the inner peripheral surface of the cam ring, and two adjacent vanes (30) among the plurality of vanes (30) changes in accordance with the rotation of the rotor. The suction step ends at a timing at which the volume of the pump chamber becomes maximum.
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Inventors:
TAGA NAOYA
Application Number:
PCT/JP2018/029025
Publication Date:
February 06, 2020
Filing Date:
August 02, 2018
Export Citation:
Assignee:
SHOWA CORP (JP)
International Classes:
F04C18/344
Domestic Patent References:
| WO2016027308A1 | 2016-02-25 |
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
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