Cryogenic refrigerator system with pressure wave generator

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United States of America Patent

PATENT NO 8984898
APP PUB NO 20120227416A1
SERIAL NO

13425521

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pressure wave generator (40) for driving one or more cryogenic refrigerator systems. The pressure wave generator (40) comprises a housing with one or more inlet/outlet ports (57,58) through which generated pressure waves of gas may pass through to drive a cryogenic refrigerator system or systems connected to the inlet/outlet ports (57,58). The pressure waves are generated by at least one pair of opposed diaphragms (41,42) located in the housing that are moveable in a reciprocating motion within the housing to create pressure waves in gas spaces (55,56) associated with each diaphragm (41,42). The gas spaces (55,56) each having associated inlet/outlet ports (57,58) through which the pressure waves may pass. An operable drive system is also provided to move the pair of diaphragms (41,42) in a reciprocating motion.

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Patent Owner(s)

Patent OwnerAddress
CALLAGHAN INNOVATION69 GRACEFIELD ROAD LOWER HUTT 5040

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caughley, Alan Christchurch, NZ 2 31
Haywood, David Leeston, NZ 2 3

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