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:
Apr. 12, 2022
Filed:
May. 11, 2020
Carrier Corporation, Palm Beach Gardens, FL (US);
Raphael Muller, Lyons, FR;
Antoine Barriere, Villeurbanne, FR;
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
A refrigeration apparatus () includes a main refrigerant circuit () including a positive displacement compressor (), a condenser (), an expansion valve (), and an evaporator (), through which a refrigerant circulates successively in a closed loop circulation, a lubrication refrigerant line () connected to the main refrigerant circuit () between the condenser () and the expansion valve () or to the condenser (), in which circulates a portion of the refrigerant of the main refrigerant circuit () and connected to the compressor () for lubrication of the compressor () with the refrigerant. The lubrication refrigerant line () includes, upstream from the compressor (): a throttle valve () adapted to vary the lubrication refrigerant flow entering the compressor (), a downstream pressure detector () configured to measure refrigerant pressure (P) downstream the throttle valve () and upstream the compressor ().