Multiplex system for maintaining of product temperature in a veh

Details Multiplex system for maintaining of product temperature in a veh Multiplex system for maintaining of product temperature in a veh

1997-04-17

2000-01-18

Wayner, William

Refrigeration

Automatic control

Refrigeration producer

62239, 62265, F25B 1900, B60H 132

Patent

active

060148667

ABSTRACT:
A multiplex system is disclosed for maintaining the temperature of a product during a warehouse and distribution process employing a vehicle. The multiplex system may include a plurality of temperature control zones at which it is desired to maintain the temperature of the product. A cargo temperature control zone includes a parking area for a number of delivery vehicles having cargo containers. A primary refrigeration system is utilized to refrigerate a secondary fluid which is a non-compressible fluid that may be pumped over long distances to the cargo temperature control zone, as well as other temperature control zones. The secondary refrigerated fluid is pumped to an air handling unit which advantageously is disposed within the cargo container of one or more parked delivery vehicles. Preferably, at least two handling units are provided in each cargo container for more even distribution of refrigerated air. An expansion tank is provided inside the cargo container for accommodating the hydraulic expansion of secondary fluid in the event the inside temperature becomes elevated. A main supply and return line system connected a fluid distribution center to the temperature control zone which includes a reverse-return line. Auxiliary, flexible supply and return lines are connected to the main supply and return lines and include fluid couplings for quick connection to the cargo containers.

REFERENCES:
patent: 1980688 (1934-11-01), Lewis
patent: 2778206 (1957-01-01), Wilson et al.
patent: 3468369 (1969-09-01), Tetrick et al.

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