Title:
PUMP ASSEMBLY AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2020/042432
Kind Code:
A1
Abstract:
A pump assembly and a compressor. The pump assembly comprises a main shaft (100). The main shaft (100) has a sliding-vane slot (110), and a back-pressure oil chamber (120) is provided at a rear end of the sliding-vane slot (110). The back-pressure oil chamber (120) is at least a part of an oil passage. An oil outlet (121) of the back-pressure oil chamber is located at a top portion of the back-pressure oil chamber (120).
The position of an oil inlet (122) of the back-pressure oil chamber is lower than the position of the oil outlet (121) of the back-pressure oil chamber, such that a lubricating medium enters and fills the back-pressure oil chamber (120) via the oil inlet (122), and then flows out from the top portion of the back-pressure oil chamber (120).
Inventors:
HU YUSHENG (CN)
WEI HUIJUN (CN)
XU JIA (CN)
LUO FAYOU (CN)
WAN PENGKAI (CN)
WU FEI (CN)
ZHANG RONGTING (CN)
WEN ZHIMING (CN)
WEI HUIJUN (CN)
XU JIA (CN)
LUO FAYOU (CN)
WAN PENGKAI (CN)
WU FEI (CN)
ZHANG RONGTING (CN)
WEN ZHIMING (CN)
Application Number:
PCT/CN2018/120666
Publication Date:
March 05, 2020
Filing Date:
December 12, 2018
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04C29/02; F04C18/344; F04C29/06
Foreign References:
| CN108930651A | 2018-12-04 | |||
| CN207500118U | 2018-06-15 | |||
| CN207500118U | 2018-06-15 | |||
| CN107524600A | 2017-12-29 | |||
| CN106168216A | 2016-11-30 | |||
| JP2009228520A | 2009-10-08 |
Other References:
See also references of EP 3786454A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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