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Title:
POSITIONING AND SEAL ASSEMBLY AND ROTATING SYSTEM, FLUID MACHINE AND ROTATING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/202346
Kind Code:
A1
Abstract:
A positioning and seal assembly, comprises N positioning roller-balls (927) and a seal holder (926) in a two-layer ring-shaped structure, the seal holder (926) comprising an inner ring portion (926a) and an outer ring portion (926b); the outer ring portion (926b) extends radially and outwardly so as to form an outer extending portion (926b'), a third stepped structure being formed between the outer extending portion (926b') and the inner ring portion (926a), M positioning holes being provided uniformly on the outer extending portion (926b') in a circumferential direction, one or more positioning roller-balls (927) being provided in each positioning hole. Further included are a rotating system, a fluid machine and a rotating device using the positioning and seal assembly. The positioning and seal assembly realizes the positioning of a rotating mechanism in an operating chamber using the positioning roller-balls, and the sealing of a side surface of the rotating mechanism using the holder of the positioning roller-balls, simplifying the mechanical structure of the rotating device and reducing the cost.

Inventors:
YAO, Qihuai (B-3 Factory, Xincheng Industrial Park II Jinghai 3rd Road No. 1, Economic and Technological Development Zone, Beijing 6, 100176, CN)
Application Number:
CN2017/085772
Publication Date:
November 30, 2017
Filing Date:
May 24, 2017
Export Citation:
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Assignee:
YAO, Frank (B-3 Factory, Xincheng Industrial Park II Jinghai 3rd Road No. 1, Economic and Technological Development Zone, Beijing 6, 100176, CN)
International Classes:
F04C27/00
Domestic Patent References:
WO2016052296A12016-04-07
Foreign References:
CN104100299A2014-10-15
CN104632628A2015-05-20
CN103953544A2014-07-30
CN103122858A2013-05-29
EP1437511A12004-07-14
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (Suite 4-1105, No. 87 West 3rd Ring North Rd., Haidian District, Beijing 9, 100089, CN)
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