PURPOSE: To eliminate a wasteful dead volume and to improve an efficiency of a compressor by forming four pressure chambers in a housing of the compressor, and operating one both pressure chambers as a fluid compressing section based on a relative pressure change in the other both pressure chambers.
CONSTITUTION: When a Stirling engine is operated, a pressure change occurs in this compressing space. Then, the change is transmitted to a first pressure chamber 32 of a compressor 30 through a passage 23. Incidentally, second pressure chambers 37, 38 communicate with the chamber 32 through orifices 35, 36 to generate intermediate pressure. If a pressure of the chamber 32 is now higher than the intermediate pressures of the chambers 37, 38, pressures of sealing members 42, 48 are higher than those of sealing members 41, 49, bellows 39, 46 are compressed, and bellows 40, 47 are elongated. Accordingly, volumes of third pressure chambers 43, 50 are reduced, refrigerant in the interior is compressed, discharged, volumes of fourth pressure chambers 44, 51 are increased, and the refrigerant is sucked into the interior.
WATANABE TETSUMI
MOMOSE YUTAKA
