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 (CN)
Application Number:
PCT/CN2017/085772
Publication Date:
November 30, 2017
Filing Date:
May 24, 2017
Export Citation:
Assignee:
YAO FRANK (CN)
International Classes:
F04C27/00
Domestic Patent References:
| WO2016052296A1 | 2016-04-07 |
Foreign References:
| CN104100299A | 2014-10-15 | |||
| CN104632628A | 2015-05-20 | |||
| CN103953544A | 2014-07-30 | |||
| CN103122858A | 2013-05-29 | |||
| EP1437511A1 | 2004-07-14 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
Download PDF:
Previous Patent: ANIMAL-SENSING WINDOWSILL AND USE METHOD THEREFOR
Next Patent: SIDE-BY-SIDE REFRIGERATOR WITH CAMERA DEVICE
Next Patent: SIDE-BY-SIDE REFRIGERATOR WITH CAMERA DEVICE