Heat exchanger for stirling machine, method for manufacturing heat exchanger, and stirling machine

A heat exchanger for a Stirling machine, the Stirling machine including an expansion chamber and a compression chamber, the heat exchanger comprising:

• a heater;
• a regenerator;
• and
• a cooler, wherein
• the heater, the regenerator, and the cooler are connected in series in a flow direction of a working fluid, and communicate the expansion chamber with the compression chamber,
• the heater includes
• a first flow channel communicating with the expansion chamber and the regenerator and configured to the working fluid to flow the working fluid therethrough, and
• a second flow channel configured to flow a first fluid for exchanging heat with the working fluid to flow therethrough,
• the cooler includes
• a third flow channel communicating with the compression chamber and the regenerator and configured to flow the working fluid to flow therethrough, and
• a fourth flow channel configured to flow a second fluid for exchanging heat with the working fluid to flow therethrough, and
• the heater, the regenerator, and the cooler are disposed between a radially inner peripheral wall and a radially outer peripheral wall and the heater, the regenerator, and the cooler are continuously connected to each other in an axial direction of the radially inner peripheral wall and the radially outer peripheral wall and configured as one additively manufactured piece such that a separate coupling of the heater, the regenerator, and the cooler is not necessary to couple each of the heater, the regenerator, and the cooler to each other.