Patent ID: 7918102

Claim:
A cooling apparatus adapted for cooling a heat-generating substrate by cold vapor refrigeration, comprising a refrigeration loop including: a refrigerant compressor ( 32 ), a condenser ( 44 ) for receiving refrigerant from said compressor and for outputting heat to ambient air, thereby cooling said refrigerant, a fan ( 20 ) arranged to pass said ambient air past said condenser ( 44 ), a throttle valve ( 62 ) for receiving cooled refrigerant from said condenser ( 44 ), and adapted to permit isenthalpic expansion of the refrigerant, an evaporator ( 60 ; 100 ) having a primary heat-transfer surface ( 104 ) formed of a highly heat-conductive material, adapted to receive refrigerant from said throttle valve ( 62 ), and thermally coupled to the heat-generating substrate ( 12 ), a common drive motor ( 42 ) adapted to drive both said compressor ( 32 ) and said fan ( 20 ), and a controller ( 54 ) adapted to receive a signal corresponding to refrigerant temperature, and to control said temperature by controlling a rotation speed of said fan ( 20 ).