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:
Aug. 30, 2022
Filed:
Jun. 27, 2016
United Technologies Corporation, Farmington, CT (US);
Scott Alan Eastman, Glastonbury, CT (US);
Joseph V. Mantese, Ellington, CT (US);
Wei Xie, East Hartford, CT (US);
Subramanyaravi Annapragada, South Windsor, CT (US);
Parmesh Verma, South Windsor, CT (US);
Sergei F. Burlatsky, West Hartford, CT (US);
Wayde R. Schmidt, Pomfret Center, CT (US);
Treese Hugener-Campbell, Coventry, CT (US);
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
A heat transfer system is disclosed in which, an electrocaloric material includes a copolymer of a monomer mixture including (i) vinylidene fluoride, (ii) an addition polymerization monomer selected from tetrafluoroethylene, trifluoroethylene, or a monomer smaller than trifluoroethylene, and (iii) a halogenated addition polymerization monomer different than (ii) that is larger than vinylidene fluoride. The electrocaloric material also includes an additive selected from a nucleating agent having a polar surface charge, electrocalorically active solid particles, or a combination thereof. Electrodes are disposed on opposite surfaces of the electrocaloric material, and an electric power source is configured to provide voltage to the electrodes. The system also includes a first thermal flow path between the electrocaloric material and a heat sink, and a second thermal flow path between the electrocaloric material and a heat source.