Patent ID: 9062898
Filing Date: 2015-06-23
Classification: F01K,F25B,Y02P

Abstract:
1. A working fluid circuit for converting thermal energy into mechanical energy, comprising: a pump configured to circulate a working fluid through the working fluid circuit; a heat exchanger in fluid communication with the pump and in thermal communication with a heat source, the heat exchanger being configured to transfer thermal energy from the heat source to the working fluid; a condenser fluidly coupled to the pump and configured to cool the working fluid before returning the working fluid to the pump for recirculation; an ejector fluidly coupled to the heat exchanger and configured to receive a motive fluid and a suction fluid, the motive fluid being a portion of the working fluid discharged from the heat exchanger and the suction fluid being a portion of the working fluid discharged from the condenser, wherein the ejector discharges a mixed fluid into or adjacent an inlet of the condenser; an expansion valve fluidly coupled to the condenser and configured to receive and expand the suction fluid; and an evaporator in fluid communication with the expansion valve and having a target fluid circulating therein, the evaporator configured to transfer thermal energy from the target fluid to the suction fluid while cooling the target fluid.