Title:
VANE PUMP/MOTOR
Document Type and Number:
WIPO Patent Application WO/2010/017700
Kind Code:
A1
Abstract:
A double oil passage vane pump, includes a left end cover (1), a right end cover (4), a stator (2), a rotor (8), multiple vanes (5) and a working shaft (6), the cavity of the stator (2) is evenly distributed with several action sections along the circumferential direction; two oil inlets (11, 13) are provided in the outer surface of the left end cover (1), two sets of main oil supply openings (16, 16') and two sets of assistant oil supply openings (17, 17') respectively communicating with the two oil inlets (11, 13) are provided in the surface of the left end cover (1) connecting with the cavity of the stator; two oil outlets (41, 43) are provided in the outer surface of the right end cover (4), two sets of main oil discharge openings (46, 46') and two sets of assistant oil discharge openings (47, 47') respectively communicating with the two oil outlets (41, 43) are provided in the surface of the right end cover (4) connecting with the cavity of the stator.
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Inventors:
HU DONGWEN (CN)
Application Number:
PCT/CN2009/070172
Publication Date:
February 18, 2010
Filing Date:
January 16, 2009
Export Citation:
Assignee:
HU DONGWEN (CN)
International Classes:
F04C2/344; F01C1/344; F03C2/00
Foreign References:
| US4183723A | 1980-01-15 | |||
| CN1010337B | 1990-11-07 | |||
| CN101338747A | 2009-01-07 | |||
| US5702242A | 1997-12-30 | |||
| CN2561964Y | 2003-07-23 | |||
| CN1018468B | 1992-09-30 |
Attorney, Agent or Firm:
YIN INT'L IP FIRM (13 Huayuan Road Haidian District, Beijing 8, CN)
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