公开(公告)号：US20190145670A1

公开(公告)日：2019-05-16

申请号：US16190947

申请日：2018-11-14

申请人： ThermoLift, Inc.

发明人： Peter Hofbauer ,  YueXin Huang ,  David Yates ,  Sai Ronit Kaza

IPC分类号： F25B9/14

摘要： A thermodynamic apparatus that includes a displacer within a cylinder is disclosed. The displacer reciprocates within the cylinder by a linear actuator that includes electrical coils, an armature, and a coil spring system. The spring system includes collinear first and second coil springs of opposite sense. First ends of the springs are captured in a first plate; second ends of the springs are captured in a second plate. Without constraint, the springs can compensate to forces by bending, rotating, increasing in diameter, and combinations thereof. In certain applications, such as the heat pump, bending should be minimized. By selecting the points of capture of the hooks at the ends of the springs in the plates, bending force of the first spring counteracts the bending force of the second spring.

公开(公告)号：US11226138B2

公开(公告)日：2022-01-18

申请号：US16190947

申请日：2018-11-14

申请人： ThermoLift, Inc.

发明人： Peter Hofbauer ,  YueXin Huang ,  David Yates ,  Sai Ronit Kaza

IPC分类号： F25B9/14 ,  F25B30/02

摘要： A thermodynamic apparatus that includes a displacer within a cylinder is disclosed. The displacer reciprocates within the cylinder by a linear actuator that includes electrical coils, an armature, and a coil spring system. The spring system includes collinear first and second coil springs of opposite sense. First ends of the springs are captured in a first plate; second ends of the springs are captured in a second plate. Without constraint, the springs can compensate to forces by bending, rotating, increasing in diameter, and combinations thereof. In certain applications, such as the heat pump, bending should be minimized. By selecting the points of capture of the hooks at the ends of the springs in the plates, bending force of the first spring counteracts the bending force of the second spring.