The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Nov. 22, 2013
Applicant:
Danfoss (Tianjin) Ltd., Tianjin, CN;
Inventors:
Assignee:
Danfoss (Tianjin) Ltd., Tianjin, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 31/00 (2006.01); F04B 53/18 (2006.01); F04B 39/02 (2006.01); F04C 29/02 (2006.01); F01M 11/06 (2006.01); F16N 19/00 (2006.01);
U.S. Cl.
CPC ...
F25B 31/002 (2013.01); F01M 11/061 (2013.01); F04B 39/0207 (2013.01); F04B 53/18 (2013.01); F04C 29/021 (2013.01); F04C 29/028 (2013.01); F25B 31/004 (2013.01); F16N 19/006 (2013.01); F25B 2400/075 (2013.01);
Abstract
Embodiments of the present invention provides an oil balancing apparatus, applied to at least three compressors connected in parallel. The oil balancing apparatus includes a first oil balancing pipe and a second oil balancing pipe. The first oil balancing pipe connects oil sumps of all the compressors, and the second oil balancing pipe only connects oil sumps of oil-rich compressors but not an oil sump of an oil-starved compressor.