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Evaporator air management system for trailer refrigeration

A refrigeration system and evaporator coil technology, which is applied in household refrigeration devices, air handling equipment, applications, etc., can solve the problems of non-optimized coordination, consumption, and excessive fan power of evaporator heat exchangers

Inactive Publication Date: 2010-06-23
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most cases this causes non-optimal coordination with the evaporator heat exchanger and excess flow loss
These losses must then be overcome by the fan, causing excessive fan power consumption
Furthermore, this space issue will be intrusive with respect to the design of the condenser air management system
That said, there are fewer usable spaces and options available when designing a condenser air system

Method used

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  • Evaporator air management system for trailer refrigeration
  • Evaporator air management system for trailer refrigeration
  • Evaporator air management system for trailer refrigeration

Examples

Experimental program
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Embodiment Construction

[0019] A truck trailer refrigeration system according to the prior art mounted to the front end of a truck trailer 12 is shown at 11 in FIG. 1 . System 11 includes an outer portion 13 and an inner portion 14 . The outer section 13 includes a condenser and a fan for circulating outside air therethrough to condense the refrigerant in the system.

[0020] In the interior section 14, which is located inside the trailer, the evaporator coil is located with one or more fans for drawing air through the coil. Return air from the trailer is thus drawn into the opening 16, passed over the evaporator coil to be cooled, and then blown out the top opening 17 to circulate rearwardly in the truck trailer 12, cooling the cargo therein.

[0021] Although both the condenser fan and the evaporator fan are usually belt driven by the system motor located in the lower part of the outer section 13, recently applied approach has been for the system motor to directly drive a generator which then prov...

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PUM

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Abstract

An improved evaporator air management system for trailer refrigeration systems, including an electrically powered, vertical axis, axial flow fan, arranged so as to draw air through a horizontally mounted evaporator coil. The flow is then driven upward through a nozzle and discharged into the trailer. The nozzle shape graduates from a circular cross-section to a wide-aspect ratio rectangular cross-section, while turning through 90 DEG. The preferred choice of axial flow fan for the invention is the vane-axial type incorporating outlet guide vanes. Provision is made for a single fan-nozzle configuration which may be either centered or transversely off-set with respect to the evaporator coil. An additional option provides for an arrangement with a pair of side-by-side fan-nozzles.

Description

technical field [0001] The present invention relates generally to transport refrigeration, and more particularly to evaporator air management systems for trailer refrigeration systems. Background technique [0002] A trailer refrigeration system generally includes the powertrain, refrigeration cycle, air management system, and control system, all housed in a trailer-mounted unit. These systems are constructed with insulation (or bays) to separate the refrigerated trailer side of the unit from the outside containing the engine, compressor and condenser. Powertrains traditionally consist of a diesel engine and mechanical power transmission devices such as shafts, clutches and belt drives. More recently, generators are coupled to diesel engines, whereupon the power is transmitted electrically to other system components. A basic refrigeration circuit consists of a compressor, evaporator heat exchanger, condenser heat exchanger, expansion device, piping and valves. The compres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D17/04B60H1/32
CPCB60H1/3232B60H1/00014F25D2317/0672F25D17/06F25D2317/0665F25D19/003
Inventor P·R·布什内尔
Owner CARRIER CORP