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1. (WO2018198369) VANE PUMP

Pub. No.:    WO/2018/198369    International Application No.:    PCT/JP2017/017073
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: F04C 18/344
F04C 2/344
Inventors: OGURA Takahiro
小倉 崇寛
In this vane pump, a cylindrical rotor (18) is arranged within an accommodation space (10) of a pump housing (2), a pair of pump chambers (20) are individually defined on the front and rear sides of the rotor (18), and the left and right sides of the outer circumferential surface of the rotor (18) are each made to face the inner circumferential surface of the accommodation space (10) with a minute gap therebetween. The rotor (18) is rotationally driven by a motor (3) and air is taken in and discharged as a result of a vane (21) on the outer circumference causing the capacity of each of the pump chambers (20) to change. The accommodation space (10) is formed to have a cross-sectional track shape in which the ends of a pair of semicircular arc surfaces A are connected by a pair of parallel surfaces B in a planar view.