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Title:
VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2018/198369
Kind Code:
A1
Abstract:
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.

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Inventors:
OGURA Takahiro (Odawara Branch 2480, Kuno, Odawara-sh, Kanagawa 55, 〒2500055, JP)
Application Number:
JP2017/017073
Publication Date:
November 01, 2018
Filing Date:
April 28, 2017
Export Citation:
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Assignee:
MIKUNI CORPORATION (13-11, Sotokanda 6-chome Chiyoda-k, Tokyo 21, 〒1010021, JP)
International Classes:
F04C18/344; F04C2/344
Foreign References:
JP2003106275A2003-04-09
JPH11324957A1999-11-26
JP2002310072A2002-10-23
GB2407625A2005-05-04
Attorney, Agent or Firm:
NAGATO, Kanji (5F Hyakuraku Bldg, 8-1 Shinbashi 5-chome, Minato-k, Tokyo 04, 〒1050004, JP)
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