PURPOSE: To save an arrangement space of a thermal driving air conditioning device.
CONSTITUTION: A first cylinder 6 and a second cylinder 7 are serially arranged through a pressure buffering chamber 23. A first low temperature displacer rod 24 is formed on one end of a low temperature displacer 5 projectingly into the pressure buffering chamber in order to obtain a power. A second low temperature displacer rod 25 is formed on the other end of the displacer 5 so as to be connected to a driving mechanism 1 for reciprocating while keeping a specified phase difference in respect to a high temperature displacer 4. A high temperature displacer rod 2 provided on the high temperature displacer penetrates through the pressure buffering chamber, the first low temperature displacer rod, the low temperature displacer, and the second low temperature displacer rod.
HONDA TETSUYA
KAWAJIRI KAZUHIKO
SUGIMOTO TERUO