Title:
OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2011/096260
Kind Code:
A1
Abstract:
An oil pump configured so that the level of noise generated by the oil pump is lower than or equal to a predetermined level.
An oil pump (1) comprises: an eccentrically provided outer rotor (2); an inner rotor (3) having outer teeth (3a) meshing with the inner teeth of the outer rotor (2); and an oil pump body (5) for containing the inner rotor (3) and the outer rotor (2). The oil pump body (5) is provided with a suction port (11) and a discharge port (10), and the distance between the discharge port (10) and the end section (11b) of the suction port (11) is set so that the rotational angle (a) of the inner rotor (3) in a compression process in which the volume of a space section (S) is compressed is within the range of 21˚ to 27˚.
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Inventors:
NAKAGAWA MASATERU (JP)
IKE NOBUKAZU (JP)
IWASE TAKURO (JP)
UMEMURA TOMOHIRO (JP)
ARIGA NORIYASU (JP)
ISHIKAWA KATSUNORI (JP)
NARITA MASASHI (JP)
IKE NOBUKAZU (JP)
IWASE TAKURO (JP)
UMEMURA TOMOHIRO (JP)
ARIGA NORIYASU (JP)
ISHIKAWA KATSUNORI (JP)
NARITA MASASHI (JP)
Application Number:
PCT/JP2011/050511
Publication Date:
August 11, 2011
Filing Date:
January 14, 2011
Export Citation:
Assignee:
AISIN AW CO (JP)
TOYOOKI KOGYO KK (JP)
NAKAGAWA MASATERU (JP)
IKE NOBUKAZU (JP)
IWASE TAKURO (JP)
UMEMURA TOMOHIRO (JP)
ARIGA NORIYASU (JP)
ISHIKAWA KATSUNORI (JP)
NARITA MASASHI (JP)
TOYOOKI KOGYO KK (JP)
NAKAGAWA MASATERU (JP)
IKE NOBUKAZU (JP)
IWASE TAKURO (JP)
UMEMURA TOMOHIRO (JP)
ARIGA NORIYASU (JP)
ISHIKAWA KATSUNORI (JP)
NARITA MASASHI (JP)
International Classes:
F04C2/10; F04C15/06
Foreign References:
| JP2005042689A | 2005-02-17 | |||
| JP2004332696A | 2004-11-25 | |||
| JP2003227474A | 2003-08-15 | |||
| JP2006183569A | 2006-07-13 |
Attorney, Agent or Firm:
CHIKASHIMA, Kazuo (JP)
近島 One husband (JP)
近島 One husband (JP)
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Claims: