F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 49/00 (2006.01) F25D 29/00 (2006.01) G05D 23/19 (2006.01)
Patent
CA 2059324
REFRIGERATION PULL DOWN TECHNIQUE ABSTRACT OF THE DISCLOSURE Apparatus for and method of rapidly bringing a controlled space to a desired temperature. The technique is particularly applicable to the maintenance of controlled temperature spaces for the transportation of perishable cargo, such as in refrigeration trucks. Immediately following completion of the loading process, it is desirable to bring the internal temperature of the controlled space to the proper operating point as quickly as possible to retard spoilage. However, it is necessary to avoid unacceptable overshoot to prevent damage to the cargo by freezing. The disclosed system employs multiple sensors and a control algorithm to permit pull down to occur as rapidly as possible without unacceptable overshoot.
Truckenbrod Greg
Wacker Paul C.
Cassan Maclean
Honeywell Inc.
Thermo King Corporation
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