Heat pump containing a piston compressor and driven by a piston engine
AssigneeStudsvik Energiteknik AB
InventorJan-Erik A. Nowacki
Life of this patent
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Abstract
A heat pump contains a piston compressor which is driven by a piston engine. The refrigerant on the low pressure side of the heat pump drives the engine during the compression stroke of the engine. An accumulator chamber for the low pressure refrigerant is provided adjacent the compressor. The volume of the accumulator chamber is so large that the compressor piston, and consequently also the engine piston, is given a speed high enough for producing the required compression in the engine cylinder.
Claims15
A heat pump containing a piston compressor driven by a piston engine, in which the cylinder (33) of the compressor communicates with the condensor of the heat pump via a high pressure refrigerant conduit (76), and communicates with the evaporator of the heat pump via a low pressure refrigerant conduit (77), characterized in that an accumulator chamber (75) for low pressure refrigerant is provided in the low pressure refrigerant conduit (77) adjacent the cylinder (33) of the compressor, the low pressure refrigerant in said accumulator chamber (75) driving the compressor piston (35) and the engine piston (34) during the compression stroke of the engine, the volume of said accumulator chamber (75) being of such magnitude that the compressor piston (35) and the engine piston (34) are given a sufficiently high speed to produce the compression in the engine cylinder (32).
Dependencies are inferred from the claim text.