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:
Mar. 14, 1995
Filed:
Apr. 06, 1994
Edward A Huenniger, Liverpool, NY (US);
Carrier Corporation, Syracuse, NY (US);
Abstract
An oil management system for a refrigeration system having a screw compressor for pressurizing and circulating refrigerant through the system and an evaporator having a shell enclosing a chamber for allowing phase change of the refrigerant. A suction line is provided to fluidly connect the evaporator chamber to the inlet side of the compressor. The suction line is sealed about an opening in the shell and has a distal end projecting into the chamber below the seal. A reservoir is positioned within the chamber, below the suction line. The reservoir is employed for collecting lubrication oil migrating down the suction line during low load operation of the compressor so that when the level of oil in the reservoir reaches a predetermined level, the opening in the distal end of the line will be restricted thereby increasing the flow velocity proximate thereto causing reintroduction of the oil into the compressor.