IMPROVED REFRIGERATION DEVICE WITH IMPROVED DC MOTOR

WIPO Patent Application WO2005119137

A3

A miniature cooling device (100) includes numerous improvements capable of increasing the reliability and useful lifetime of the device, as well as improving electrical power to cooling power conversion efficiency. The improvements include a unitary DC motor shaft design (102) that incorporates a unitary mass flywheel (314) into the shaft element (300) and provides a solid shaft cross-section (302) for increasing magnetic flux density in the DC motor. Additional improvements include a bend resistant flexible vane (114) in the DC motor to compression piston drive coupler (806), reduced dead space volume within the compression cylinder (818), improved heat dissipation by a cylinder head cover (1300) and an athermalized compressor design that provides uniformly efficient operation over a wide range of operating temperatures. Further improvements include fabrication and coating improvements that increase the life of compression piston and compression cylinder wear surfaces.

BIN-NUN URI (US)
MANITAKOS DANIEL L (US)

PCT/US2005/013661

April 27, 2006

April 21, 2005

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FLIR SYSTEMS (US)
BIN-NUN URI (US)
MANITAKOS DANIEL L (US)

F25B1/00; F25B27/00; F25B31/00; H02K1/00; H02K1/27; H02K3/00; H02K7/02; H02K19/26; H02K21/00; H02K23/40; F25B9/14; (IPC1-7): F25B9/00; H02K31/00

US20050000213A1	2005-01-06
US5865091A	1999-02-02
US20030184176A1	2003-10-02
US20040145265A1	2004-07-29
US4769997A	1988-09-13
US6230498B1	2001-05-15
US6076358A	2000-06-20
US5056317A	1991-10-15
US4979368A	1990-12-25

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