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:
Oct. 10, 2023
Filed:
May. 23, 2019
Carrier Corporation, Palm Beach Gardens, FL (US);
Ahmad M. Mahmoud, Bolton, CT (US);
Jinliang Wang, Ellington, CT (US);
Frederick J. Cogswell, Glastonbury, CT (US);
Parmesh Verma, South Windsor, CT (US);
Carrier Corporation, Palm Beach Gardens, FL (US);
Abstract
A method for operating a heat pump () includes operating in a cooling mode wherein heat is absorbed by refrigerant in the indoor heat exchanger () and rejected by refrigerant in the outdoor heat exchanger (). The heat pump switches to operation in a heating mode wherein heat is rejected by refrigerant in the indoor heat exchanger, heat is absorbed by refrigerant in the outdoor heat exchanger, and there is an ejector () motive flow and ejector secondary flow. In the heating mode a refrigerant pressure (PH) or temperature (TL) is measured and, responsive to the measured refrigerant pressure or temperature, at least one of a fan speed is changed and a needle () of the ejector is actuated.