Co_ temperature control system for transport vehicles

Details Co_ temperature control system for transport vehicles Co_ temperature control system for transport vehicles

B - Operations, Transporting

60

H

62/77

B60H 1/32 (2006.01) F25D 3/10 (2006.01) F25D 29/00 (2006.01)

Patent

CA 1319021

ABSTRACT OF THE DISCLOSURE A cooling system for an insulated enclosure, comprising an evaporator containing CO2 in liquid and gaseous phases. A vent is coupled to the evaporator to release CO2 gas in order to reduce the pressure in the evaporator caused by the vaporization of CO2 therein. An electronic controller regulates the opening and closing operation of the vent to produce a generally cyclical pressure variation in the evaporator, having an amplitude selected in accordance with the heat absorption rate of the system, whereby regulating the CO2 discharge rate from the evaporator in accordance with the heat absorption rate. A ventilation system is also provided to produce an air current in the enclosure. The ventilation system includes ducts and a blower powered by the CO2 gas released from the evaporator.

604620

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