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Patent Searching and Data


Title:
OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/041960
Kind Code:
A1
Abstract:
An oil pump (100) comprises a pump housing, a pump shaft (5), and a pump rotor assembly (8). The pump housing is capable of forming a pump cavity. The pump cavity comprises a first cavity (80) and a second cavity (90). The pump rotor assembly (8) is provided in the first cavity (80). At least part of the pump shaft (5) is provided in the second cavity (90). The pump rotor assembly (8) comprises a first rotor (81) and a second rotor (82). The first rotor (81) is capable of rotating the second rotor (82), and is fixedly connected to the pump shaft (5). The pump shaft (5) is capable of rotating the first rotor (81). The first rotor (81) comprises a connecting portion (812). A connecting hole (8123) is provided in the connecting portion (812). At least part of the pump shaft (5) is provided in the connecting hole (8123). At least part of the connecting portion (812) engages with at least part of the pump shaft (5). The configuration improves reliability of the connection between the pump shaft (5) and the first rotor (81), thereby facilitating transmission between the pump shaft (5) and the first rotor (81), and simplifying assembly of the pump shaft (5) and the first rotor (81).

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Inventors:
LU, Jiangang (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
WU, Zhiwang (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
YIN, Bingjiu (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
ZHANG, Kai (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
ZHOU, Yubin (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
Application Number:
CN2018/090552
Publication Date:
March 07, 2019
Filing Date:
June 11, 2018
Export Citation:
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Assignee:
HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD. (No. 289-2#, 12th Street Economic & Technological Development Are, Hangzhou Zhejiang 8, 310018, CN)
International Classes:
F04C2/10; F04C15/00
Foreign References:
CN207420851U2018-05-29
CN207363873U2018-05-15
CN207363874U2018-05-15
CN103161727A2013-06-19
CN2886133Y2007-04-04
CN102913735A2013-02-06
CN103196025A2013-07-10
CN202125717U2012-01-25
CN204083751U2015-01-07
CN102052120A2011-05-11
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (7th Floor, Scitech PlaceNo. 22, Jian Guo Men Wai Ave., Chao Yang District, Beijing 4, 100004, CN)
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