Title:
OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2013/115292
Kind Code:
A1
Abstract:
This oil pump is provided with: housings (10, 20) having an intake hole (44b) for taking in the oil, a discharge hole (52) for discharging the oil, and a purge hole (24) for purging oil contaminated with air; inner rotors (71, 81) arranged in the housings so as to be capable of rotating about a predetermined axial line (S); and outer rotors (72, 82) arranged so as to rotate in the housings in coordination with the inner rotors. A filter member (90) for preventing foreign matter from entering from outside the housings through the purge hole is provided to the housings. It is thereby possible to prevent contamination by foreign matter and the like, even when oil is sucked in through the purge hole.
Inventors:
ODA HIROYUKI (JP)
Application Number:
PCT/JP2013/052131
Publication Date:
August 08, 2013
Filing Date:
January 31, 2013
Export Citation:
Assignee:
MIKUNI KOGYO KK (JP)
International Classes:
F04C2/10
Foreign References:
| JP2006348750A | 2006-12-28 | |||
| JPH06213093A | 1994-08-02 | |||
| JPS5330524B2 | 1978-08-28 | |||
| JPH09203308A | 1997-08-05 | |||
| JPS6167278A | 1986-04-07 | |||
| JPH02107738U | 1990-08-28 | |||
| JPH0465974U | 1992-06-09 |
Other References:
See also references of EP 2811163A4
Attorney, Agent or Firm:
YAMAMOTO TAKATOSHI (JP)
Takatoshi Yamamoto (JP)
Takatoshi Yamamoto (JP)
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Claims:
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