FIELD: power engineering.
SUBSTANCE: invention relates to power engineering and can be used in Stirling engines containing a regenerative heat exchanger. The heat-insulating body of the regenerative heat exchanger of a Stirling engine is made with two branch pipes connected to a heater and a refrigerator, respectively. At least two nozzles located in series between the branch pipes are located inside the body. Each nozzle is made in form of a tube with tightly sealed ends, wherein each tube contains filler. The melting point of the filler of each nozzle increases accordingly in the direction from the branch pipe of the refrigerator to the branch pipe of the heater. The transverse profile of the wall of each tube is made oval, each tube is bent into a spiral shape, wherein the major axis of the oval is oriented in the direction of the axis of the spiral.
EFFECT: increased heat capacity of the nozzles.
1 cl, 2 dwg
