Device for cooling the compressor of a thermal machine
AssigneeL'Unite Hermetique
InventorsJoel Crespin, Adrien Grollier-Baron, Daniel Drevet
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Abstract
The invention provides a device for cooling refrigerator or heat pump compressors and more particularly a means for priming the device of the thermo-siphon type which consists in providing a thermal connection between the outlet pipe for the hot gases of the compressor and the outlet pipe for the cooling fluid of this compressor. Ther thermo-siphon for cooling the compressor is thus primed as soon as this latter is started up and improves the efficiency of refrigerators or heat pumps which use such a device.
Claims4
A device for cooling a compressor of a thermal compression machine, said machine comprising:
- a first hermetic circuit for circulating a first fluid,
- a compressor connected in said first hermetic circuit for compressing said first fluid, said compressor being placed in a second fluid contained in a hermetic casing,
- a first evaporator connected in said first hermetic circuit to said compressor by a delivery tube, and
- a first condenser connected in said first hermetic circuit to said compressor by a suction tube, said device for cooling the compressor comprising:
- a second hermetic circuit of the thermo-siphon type for circulating a third fluid,
- a second evaporator connected in said second hermetic circuit and immersed in said second fluid, said second evaporator having two ends,
- a second condenser connected in said second hermetic circuit, respectively connected by an up-take tube and a down-take tube to said two ends of said second evaporator, and
- an auxiliary heat source for heating at least a portion of said up-take tube to obtain immediate priming of the thermo-siphon.
Dependencies are inferred from the claim text.