Stirling cycle cryogenic cooler
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United States of America Patent
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-
Jul 15, 1997
Grant Date -
N/A
app pub date -
Jan 11, 1996
filing date -
Jan 11, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A displacer assembly for use with a thermal regenerative machine has a housing configured to receive a displacer therein. The displacer has a drive area formed by a rod portion of the displacer that extends through a hole in the housing to form a clearance seal therebetween. The housing and displacer form a sub-assembly that can be pre-assembled to provide a clearance seal prior to assembly with a linear drive motor. Another feature is provided by a fluid flow path extending centrally of the displacer rod, and in part along an outer peripheral surface of the rod adjacent a heat rejection region of the housing. Heat transference there along provides for a more efficient stirling thermodynamic cycle in response thereto.
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