Title:
OIL EQUALIZING DEVICE, COMPRESSOR UNIT AND OIL EQUALIZING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/031250
Kind Code:
A1
Abstract:
An oil equalizing device, a compressor unit and an oil equalizing method are adapt to an air conditioning unit comprising two or more parallel compressor units (1a, 1b), there are one or more parallel compressors (2a, 3a; 2b, 3b) for each compressor unit; the oil equalizing device comprises oil reservoirs (4a, 4b) and a first pipe, a second pipe, a third pipe and a fourth pipe (25a, 24a, 23a, 20; 25b, 24b, 23b, 20) that are communicated to the oil reservoirs (4a, 4b), each of the pipes has at least one valve (5a, 6a, 7a, 8a; 5b, 6b, 7b, 8b) used to open/close the pipes; when the compressor units are under the normally running state, the first valve and the fourth valve (5a, 8a; 5b, 8b) are close while the second valve and the third valve (6a, 7a; 6b, 7b) are open; when the compressor units are under the oil supplying state, the first valve and the fourth valve (5a, 8a; 5b, 8b) are open while the second valve and the third valve (6a, 7a; 6b, 7b) are close; when the compressor units are under the oil recycling state, the second valve and the fourth valve (6a, 8a; 6b, 8b) are open while the first valve and the third valve (5a, 7a; 5b, 7b) are close; or the third valve and the fourth valve (7a, 8a; 7b, 8b) are open while the first valve and the second valve (5a, 6a; 5b, 6b) are close.
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Inventors:
ZHAI, Stone (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
翟维友 (中国江苏省无锡市高新技术产业开发区长江路32号, Jiangsu 8, 214028, CN)
JI, Xiucheng (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
翟维友 (中国江苏省无锡市高新技术产业开发区长江路32号, Jiangsu 8, 214028, CN)
JI, Xiucheng (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
Application Number:
CN2009/001040
Publication Date:
March 25, 2010
Filing Date:
September 17, 2009
Export Citation:
Assignee:
JOHNSON CONTROLS TECHNOLOGY COMPANY (915 East 32nd Street, Holland, MI, 49423, US)
江森自控科技公司 (美国密歇根州荷兰市东32街915号, MI, 49423, US)
JOHNSON CONTROLS BUILDING EFFICIENCY TECHNOLOGY (WUXI) COMPANY, LTD (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
江森自控楼宇设备科技（无锡）有限公司 (中国江苏省无锡市高新技术产业开发区长江路32号, Jiangsu 8, 214028, CN)
ZHAI, Stone (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
江森自控科技公司 (美国密歇根州荷兰市东32街915号, MI, 49423, US)
JOHNSON CONTROLS BUILDING EFFICIENCY TECHNOLOGY (WUXI) COMPANY, LTD (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
江森自控楼宇设备科技（无锡）有限公司 (中国江苏省无锡市高新技术产业开发区长江路32号, Jiangsu 8, 214028, CN)
ZHAI, Stone (No. 32, Changjiang RoadHi-Tech Industrial Development Zone,Wuxi, Jiangsu 8, 214028, CN)
International Classes:
F25B31/00
Attorney, Agent or Firm:
PEKSUNG INTELLECTUAL PROPERTY LTD. (908 Shining Tower, 35 Xueyuan RoadHaidian District, Beijing 3, 100083, CN)
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