Title:
VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2014/049853
Kind Code:
A1
Abstract:
A vane pump is configured in such a manner that a shaft (26) is fitted in a shaft fitting hole (21a) and does not penetrate through a rotor (21), and as a result, the space (shaft fitting hole (21a) and hollow (21c)) within the rotor (21) and a space (pump chamber (34)) outside the rotor (21) are independent of each other. The space within the rotor (21) communicates with the outside, causing pressure in the space within the rotor (21) to be low and also causing pressure in the space outside the rotor (21) to be high because of gas compression. As a result, the upper surface (21d) of the rotor (21) slides on the inner wall surface of a rotor receiving section (28) while being pressed thereagainst.
Inventors:
NAKAGAWA SATOSHI (JP)
Application Number:
PCT/JP2012/075169
Publication Date:
April 03, 2014
Filing Date:
September 28, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NAKAGAWA SATOSHI (JP)
NAKAGAWA SATOSHI (JP)
International Classes:
F04C18/344
Foreign References:
| JPS58183990U | 1983-12-07 | |||
| JP2008240652A | 2008-10-09 | |||
| JP2011117380A | 2011-06-16 | |||
| JP2011122541A | 2011-06-23 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
Hideaki Tazawa (JP)
Hideaki Tazawa (JP)
Download PDF: