Title:
VANE PUMP AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2019/229901
Kind Code:
A1
Abstract:
A vane pump (12) comprises: a first housing (23) in which a cylindrical rotor accommodation section (28) is formed; a cylindrical rotor (21) that is accommodated in the rotor accommodation section (28) and rotates; and a vane (22) that is fit to the rotor (21), moves towards the outside in the radial direction of the rotor (21) upon receiving the rotational force of the rotor (21), and rotates while in contact with the inner surface of the rotor accommodation section (28). The vane (22) has steps (22b1, 22c1, 22d1, 22e1) that are formed in the four sides of a sliding surface (22a) which contacts the inner surface of the rotor accommodation section (28).
Inventors:
YOSHIZUMI HITOSHI (JP)
NAKAGAWA SATOSHI (JP)
NAKAGAWA SATOSHI (JP)
Application Number:
PCT/JP2018/020837
Publication Date:
December 05, 2019
Filing Date:
May 30, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/344; F04C29/00
Domestic Patent References:
| WO2014049853A1 | 2014-04-03 |
Foreign References:
| JP2006322414A | 2006-11-30 | |||
| JPS50150903A | 1975-12-04 | |||
| JPS6346708Y2 | 1988-12-02 | |||
| JP2013194677A | 2013-09-30 | |||
| JP2008223579A | 2008-09-25 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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