Title:
HYDRODYNAMIC RADIAL BEARING AND POWER DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/139422
Kind Code:
A1
Abstract:
A hydrodynamic radial bearing and a power device. The hydrodynamic radial bearing comprises: a housing (1) comprising a shaft hole (1-9) having a central axis, the shaft hole (1-9) comprising at least one hole section (1-9A, 1-9B), the hole wall of the hole section (1-9A, 1-9B) comprising a plurality of curved surfaces (1-6, 1-8) sequentially arranged along the circumferential direction of the central axis of the shaft hole (1-9), and the distances from the curved surfaces (1-6, 1-8) in the radial direction of the shaft hole (1-9) to the central axis of the shaft hole (1-9) gradually decreasing along a first rotation direction (RD) about the central axis of the shaft hole (1-9); and at least one elastic support structure, corresponding to the at least one hole section (1-9A, 1-9B), the elastic support structure comprising a plurality of foil sheet groups, the plurality of foil sheet groups being provided on the plurality of corresponding curved surfaces (1-6, 1-8) of the hole wall of the shaft hole (1-9), the foil sheet groups comprising top foil sheets (5, 9) and elastic support foil sheets (3, 7) provided between corresponding curved surfaces (1-6, 1-8) and the top foil sheets (5, 9), and the distances from the top foil sheets (5, 9) to the central axis of the shaft hole (1-9) in the radial direction of the shaft hole (1-9) gradually decreasing along the first rotation direction (RD). The present structure facilitates the improvement of the hydrodynamic effect of the hydrodynamic radial bearing.
Inventors:
LIU HUA (CN)
ZHANG ZHIPING (CN)
LEI LIANDONG (CN)
LI HONGBO (CN)
CHEN YUHUI (CN)
ZHANG ZHIPING (CN)
LEI LIANDONG (CN)
LI HONGBO (CN)
CHEN YUHUI (CN)
Application Number:
PCT/CN2020/131086
Publication Date:
July 15, 2021
Filing Date:
November 24, 2020
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F16C17/02
Foreign References:
| CN106460918A | 2017-02-22 | |||
| KR100760626B1 | 2007-09-20 | |||
| KR100760626B1 | 2007-09-20 | |||
| US5634723A | 1997-06-03 | |||
| US20070211970A1 | 2007-09-13 | |||
| KR101958457B1 | 2019-03-14 | |||
| US20050013515A1 | 2005-01-20 | |||
| CN204025338U | 2014-12-17 | |||
| US20080310779A1 | 2008-12-18 | |||
| US4274683A | 1981-06-23 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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