HEAT PUMP Russian patent published in 2007 - IPC F25B30/02 

FIELD: heat power engineering.

SUBSTANCE: heat pump comprises compression cylinders, cylinder for adjacent tank with separating piston provided with individual heat exchangers, valving members, and high-pressure hydraulic pump connected in the closed circuit. Two additional cylinders interconnected through the valving members are connected in parallel between the inlets of the vertically oriented compression cylinders. The first additional cylinder is provided with a baffle. The pistons are interconnected with the rod passing through the opening made in the baffle. Two spaces formed by the walls of the baffle, pistons, and wall of the cylinder are provided with openings connected with the outlets of the three-way hydraulic switch whose inlets are connected with the inlet and outlet of the high-pressure hydraulic pump. The piston of the second additional cylinder is connected with the separating piston of the cylinder of the adjacent tank through the rod, rocking lever provided with hydraulic drive, and second heat insulated rod. The pistons of the compression cylinders are provided with displacers. The surfaces of displacers and inner surface of the compression cylinders adjacent to the air outlet of the cylinders are heat-insulated by means of solid heat insulator.

EFFECT: enhanced efficiency.

1 cl, 3 dwg