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Vehicle integrated power and control strategy for cold platerefrigeration system

A vehicle and cold plate technology, applied in the field of vehicle integrated power supply and control solutions

Inactive Publication Date: 2007-09-26
INT TRUCK INTPROP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main limitation of cold plate refrigeration systems is available operating time: the time available for delivery before the cold plate solution thaws...usually limiting vehicle usage to single shift operation

Method used

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  • Vehicle integrated power and control strategy for cold platerefrigeration system
  • Vehicle integrated power and control strategy for cold platerefrigeration system

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Embodiment Construction

[0008] Refrigeration systems deployed in truck applications generally fall into three categories. The first category are those with refrigerant compressors driven by a small diesel engine, typically used in tractor trailer applications where the trailer must be able to run stand-alone by using a small diesel engine or by connecting to stationary shore power, usually from a 240VAC, 60Hz supply .

[0009] The second class of truck refrigeration systems are those with a refrigerant compressor driven by the vehicle's prime mover engine, typically used on Class 4 and 5 trucks. These vehicles are not equipped with trailers and have no need for free-standing operation. For these applications, refrigeration is maintained by continuous operation of the vehicle's engine. Running from shore power with these units is feasible. However, most are not equipped with this option due to cost and weight considerations.

[0010] The third category of truck refrigeration systems are those that...

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Abstract

The present invention provides a vehicle integrated power and control strategy for cold plate refrigeration system for a mobile vehicle. The system is essentially a hybrid refrigeration system that includes a conventional cold plate cooling system as well as an onboard refrigeration system that will charge the cold plates when the plates lose some of their chilling capacity. The system requires minimum generator capacity because the onboard integrated system has a low power draw gradual starting compressor. When the vehicle is in use the compressor will only energize if the residual cooling effect diminishes from the plates, hence the hybrid effect. After the vehicle is returned to its home base, there is capacity to engage a shore power hookup and run the compressor from shore power.

Description

technical field [0001] The invention relates to a vehicle integrated power supply and control scheme for a cold plate refrigeration system. Background technique [0002] Commercial motor vehicles, such as medium or heavy duty trucks, are sometimes used to carry perishable items such as food. One of the ways to keep these perishable items fresh is by using "cold plate" technology. "Cold plate" refrigeration relies on an aluminum or other metal container (cold plate) filled with a solution having a predetermined freezing point. Before the vehicle is operated, usually overnight, the vehicle's on-board refrigerant compressor is run to bring the cold plate to a frozen state. The vehicle then typically departs in the morning for its delivery cycle. Maintain frozen cargo at an appropriate temperature until the cold plate solution thaws. When compared to "regular" vehicle cooling ("refrigerated trucks") systems, cold plate cooling is very reliable, energy efficient (since 115V A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02P27/00F04B17/03F04D25/06F04C23/02F25B27/00F25D11/00B60P3/20B60H1/32
CPCB60H1/3232B60H1/3222B60H1/005
Inventor G·拉森
Owner INT TRUCK INTPROP LLC
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