Title:
OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2023/176170
Kind Code:
A1
Abstract:
The present invention configures an oil pump that can easily maintain an inner rotor in a removal-prevented state with respect to a shaft. This oil pump is provided with: a shaft capable of rotating by a rotary driving force; an inner rotor that has a through-hole into which the shaft is inserted and which rotates integrally with the shaft; an engaging portion that transmits the rotary driving force of the shaft to the inner rotor; and a position restricting portion that restricts the movement of the inner rotor in a direction along the drive axis of the shaft. The position restricting portion is configured from an engaging groove that is formed in the outer circumference of the shaft and a restriction hook that is formed in the inner circumference of the through-hole of the inner rotor and elastically deforms to mesh with the engaging groove.
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Inventors:
KATO HIROSHI (JP)
Application Number:
PCT/JP2023/002809
Publication Date:
September 21, 2023
Filing Date:
January 30, 2023
Export Citation:
Assignee:
AISIN CORP (JP)
International Classes:
F04C2/10; F04C15/00
Domestic Patent References:
| WO2015119050A1 | 2015-08-13 |
Foreign References:
| JPS62102886U | 1987-06-30 | |||
| JP2021143622A | 2021-09-24 | |||
| JPS5795488U | 1982-06-11 | |||
| US20190226481A1 | 2019-07-25 | |||
| KR20070062218A | 2007-06-15 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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