Cryopump or heat pump circuit

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United States of America Patent

PATENT NO 4461635
SERIAL NO

06417458

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a cryopump or heat pump circuit having in series a compressor, a condenser, an expansion valve and an evaporator. The expansion valve is controlled as normally by a sensor which is responsive to the superheating of refrigerant at the outlet of the evaporator. In order to assure sufficient dryness of the evaporator output to make the expansion valve operative, the sensor is connected to a heat source which generates a sufficient amount of heat so that the sensor assumes a temperature corresponding to the set superheating.

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Patent Owner(s)

Patent OwnerAddress
DANFOSS A/S A COMPANY OF DENMARKNORDBORG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rudebeck, Viggo Augustenborg, DK 2 8

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