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. 24, 2018
Filed:
Jan. 17, 2008
Yu H. Chen, Manlius, NY (US);
Suresh Duraisamy, Liverpool, NY (US);
Lucy Yi Liu, Fayetteville, NY (US);
Jason Scarcella, Cicero, NY (US);
Zvonko Asprovski, Liverpool, NY (US);
Kursten Lamendola, Chittenango, NY (US);
Biswajit Mitra, Huntersville, NC (US);
Yu H. Chen, Manlius, NY (US);
Suresh Duraisamy, Liverpool, NY (US);
Lucy Yi Liu, Fayetteville, NY (US);
Jason Scarcella, Cicero, NY (US);
Zvonko Asprovski, Liverpool, NY (US);
Kursten Lamendola, Chittenango, NY (US);
Biswajit Mitra, Huntersville, NC (US);
CARRIER CORPORATION, Farmington, CT (US);
Abstract
A carbon dioxide refrigerant vapor compression system and method of operating that system are provided. The refrigerant vapor compression system includes a compression device, a flash tank receiver disposed in the refrigerant circuit intermediate a refrigerant heat rejection heat exchanger and a refrigerant heat absorption heat exchanger, and a compressor unload circuit including a refrigerant line establishing refrigerant flow communication between an intermediate pressure stage of the compression device and the refrigerant circuit at a location downstream of the refrigerant heat absorption heat exchanger and upstream of a suction inlet to the compression device, and a unload circuit flow control device disposed in said unload circuit refrigerant line. In response to at least one system operating parameter sensed by at least one sensor, the controller selectively positions the unload flow control device to maintain the refrigerant vapor compression system operating below a preselected high pressure limit.