Carrier Corporation

United Technologies Corporation

William A Rioux

Joseph V Mantese

Parmesh Verma

Tobias H Sienel

Thomas D Radcliff

Subramanyaravi Annapragada

Wei Xie

Young Kyu Park

Scott Alan Eastman

Russell George Lewis

Jeffrey James Nieter

Sivakumar Gopalnarayanan

Aritra Sur

Gary D Winch

J Michael Griffin

Tobias Sicnel

Jeff J Neiter

Young K Park

Disclosed is a heat transfer system with a module that includes a peripheral frame () and an electrocaloric element () disposed in an opening in the peripheral frame. The electrocaloric element includes an electrocaloric film (), a first electrode () on a first side of the electrocaloric film, and a second electrode () on a second side of the electrocaloric film. First and second electrically conductive elements () are disposed adjacent to first and second surfaces of the peripheral frame, and provide an electrical connection to the first and second electrodes.

Electrocaloric heat transfer system

A method of making an electrocaloric element includes forming conductive layers on opposing surfaces of a film comprising an electrocaloric material to form an electrocaloric element, wherein the forming of the conductive layers includes one or more of: vapor deposition of the conductive layers under reduced pressure for a duration of time, wherein the duration of time under reduced pressure is less than 240 minutes; vapor deposition of the conductive layers under reduced pressure for a duration of time, wherein the duration of time of exposure to conductive material deposition is less than 240 minutes; vapor deposition of the conductive layers under reduced pressure, wherein the reduced pressure is 10torr to 500 torr; or maintaining the film at a temperature of less than or equal to 200&#xb0; C. during forming of the conductive layers.

Method of forming electrodes on electrocaloric film

A heat exchanger has a first thermally conductive tube for conducting a fluid and a second thermal conductive tube for conducting a fluid. The first thermally conductive tube forms a first loop while the second thermally conductive tube forms a second loop. The first loop neighbors the second loop.

Multi-tube in spiral heat exchanger

A transcritical vapor compression system includes a compressor assembly that includes an oil separator for separating oil from refrigerant. The oil separator is disposed between a motor and a compression chamber in a sub-critical portion of the vapor compression system. Oil emitted from the drive assembly attached to the motor is substantially removed from the refrigerant before entering the compression chamber of the compressor.

Oil separator for vapor compression system compressor

The expansion of a high pressure or intermediate pressure refrigerant in an expansion device in a transcritical vapor compression system converts the potential energy into usable kinetic energy. The kinetic energy provides work which is employed to fully or partially drive an expansion motor unit which is coupled to rotating auxiliary machinery. By providing work to the rotating auxiliary machinery, system efficiency is improved. The auxiliary rotating machinery can be an evaporator fan or a gas cooler fan to pull the refrigerant through the evaporator and gas cooler, respectively. Alternatively, the auxiliary rotating machinery can be a water pump or an oil pump.

Expander driven motor for auxiliary machinery

Growing community of inventors

Willington, CT, United States of America

William A Rioux