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    • 17. 发明公开
    • STIRLING CYCLE TRANSDUCER APPARATUS
    • 斯特林循环转换器
    • EP2640951A1
    • 2013-09-25
    • EP11841862.3
    • 2011-11-10
    • Etalim Inc.
    • STEINER, Thomas WalterDE CHARDON, Briac MedardKANEMARU, Takao
    • F02G1/043F01B19/00F02G1/053
    • F02G1/057F02G1/043F02G1/053F02G2257/00
    • A Stirling cycle transducer apparatus for converting between thermal energy and mechanical energy is disclosed. The apparatus includes an expansion chamber and a compression chamber disposed in spaced apart relation along a longitudinal axis. The apparatus also includes at least one communication passage extending between the expansion chamber and the compression chamber and being operable to permit a periodic exchange of a working gas between the expansion and the compression chambers. The at least one communication passage includes an access conduit in communication with at least one of the expansion chamber and the compression chamber, and a thermal regenerator in communication with the access conduit. The regenerator is operable to alternatively receive thermal energy from gas flowing in a first direction through the communication passage and to deliver the thermal energy to gas flowing in a direction through the communication passage opposite to the first direction. In one aspect, the access conduit includes a compliant portion that is operable to deflect under thermally induced strains caused by a temperature gradient established between the expansion chamber and the compression chamber during operation. In another aspect at least one of the expansion chamber and the compression chamber may include a surface along which gas flows during the periodic exchange of the working gas and the surface may include a plurality of channels formed therein, the plurality of channels being oriented to direct gas flow in the compression chamber to and from the communication passage.