Patent ID: 9677794
Date: 2017-06-13
CPC Classifications: F25B

Claim:
1. A heat pump, comprising: a housing having an outer wall and a cylinder liner within the housing; a hot displacer disposed within the cylinder liner, the hot displacer having a generally cylindrical body, a first cap at a first end of the cylindrical body, and a second cap coupled to a second end of the cylindrical body; a hot displacer actuator coupled to at least one of the cylinder liner and the housing; a cold displacer disposed within the cylinder liner, the cold displacer having a generally cylindrical body, a third cap at a first end of the cylindrical body of the cold displacer, and a fourth cap coupled to a second end of the cylindrical body of the cold displacer; a cold displacer actuator that: is coupled to at least one of the cylinder liner and the housing; and an electronic control unit (ECU) electronically coupled to the hot displacer actuator and the cold displacer actuator wherein: