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:
Dec. 16, 2025
Filed:
May. 16, 2023
Copeland Lp, Sidney, OH (US);
Daqing Li, Dayton, OH (US);
Don R. Wiesmann, Troy, OH (US);
Copeland LP, Sidney, OH (US);
Abstract
A controller for a CO2 refrigeration system includes at least one input configured to receive an inlet air temperature from a first temperature sensor, an exit temperature from a second temperature sensor and an exit pressure from a pressure sensor, at least one output for controlling the valve and the fan, a memory, and a processor. The processor is configured by instructions stored in the memory to receive, through the at least one input, the inlet air temperature from the first temperature sensor, and control, through the at least one output, the valve and the fan based on the inlet air temperature both when the CO2 refrigeration system is operating in a transcritical mode and when the CO2 refrigeration system is operating in a subcritical mode.