Refrigerator truck
Vehicle for low-temperature freight From Wikipedia, the free encyclopedia
A refrigerator truck or chiller lorry (also called a reefer), is a van or truck designed to carry perishable freight at low temperatures. Most long-distance refrigerated transport by truck is done in articulated trucks pulling refrigerated hardside (box) semi-trailers, although insulated curtainsiders are common in some countries. Occasionally, refrigerated trailers have been used as temporary morgues,[1] and second-hand refrigerated trailers are frequently sold for use in tiny home conversions due to their insulation and existing status as a vehicle.[citation needed]
History
The first successful mechanically refrigerated trucks were made for the ice cream industry in 1925.[2] American inventor Frederick McKinley Jones is known to be the first person to invent a refrigerated truck. There were around 4 million refrigerated road vehicles in use in 2010 worldwide.[3]
Features
Like refrigerator cars, refrigerated trucks differ from simple insulated and ventilated vans (commonly used for transporting fruit), neither of which are fitted with cooling apparatus.
Refrigerator trucks can be cooled with ice, dry ice, liquid carbon dioxide, or mechanical refrigeration systems (transport refrigeration units, TRUs) powered by small displacement engines or by the truck's main engine.[4]
They are often equipped with small "vent doors" at the rear and front of the trailer. These doors are kept open while hauling non-refrigerated cargo (often "backhaul") to air out the trailer.[5]
See also
References
Bibliography
External links
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