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Organic rankine cycle augmented power supply system for mobile refrigeration units

Inactive Publication Date: 2015-10-15
CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a mobile refrigeration unit that uses waste heat from a fuel-fired engine to generate additional electric power to supplement the power produced by a diesel engine. The unit includes a power supply system with multiple generators and an organic Rankine cycle system powered by the engine exhaust gas. The system also has a battery and a power management system that directs electric current to power the refrigeration system components and can draw electric current from the battery as needed. The technical effect is improved efficiency and flexibility in generating and utilizing power for refrigeration.

Problems solved by technology

However, when operating at a lower throttle setting, the efficiency of the diesel engine is also reduced.

Method used

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  • Organic rankine cycle augmented power supply system for mobile refrigeration units
  • Organic rankine cycle augmented power supply system for mobile refrigeration units
  • Organic rankine cycle augmented power supply system for mobile refrigeration units

Examples

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Embodiment Construction

[0012]Referring initially to FIG. 1, there is depicted a refrigerated transport vehicle 12 for transporting perishable goods in a temperature controlled environment. In the depicted embodiment, the refrigerated transport vehicle 12 is a refrigerated tractor-trailer having a tractor 14 pulling a trailer 16 defining a cargo box 18. A mobile refrigeration unit 20 is mounted to the trailer 16, for example to the front wall of the trailer 16, for establishing and maintaining a temperature-controlled environment within the cargo box 18. In this application, the mobile refrigeration unit 20 is commonly referred to as a transport refrigeration unit (TRU), which terminology will be used herein.

[0013]The transport refrigeration unit 20 includes an on-board power supply system 22 and a refrigeration system 24. As illustrated schematically in FIG. 2, the refrigeration system comprises a refrigerant vapor compression system having a compression device 26, a refrigerant heat rejection heat exchan...

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Abstract

A mobile refrigeration unit includes a refrigeration system having a plurality of electric motor driven components and an on-board power supply system for generating electric current and supplying the electric current to the plurality of electric motor driven components. The power supply system includes a first generator for generating a first portion of electric power, a second generator for generating a first portion of electric power, a fuel fired engine driving the first generator, and an organic Rankine cycle system driving the second generator. An engine exhaust line connects the fuel-fired engine in exhaust gas flow communication with the organic Rankine system. The unit may also include a storage battery and a power management system.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates generally to mobile refrigeration units and, more particularly, to a mobile refrigeration unit having an on-board power supply system for generating electric current for driving a plurality of components of a refrigeration system of the mobile refrigeration unit.[0002]Refrigerated trucks and trailers are commonly used to transport perishable goods, such as, for example, produce, meat, poultry, fish, dairy products, cut flowers, and other fresh or frozen perishable products. A transport refrigeration unit is mounted to the truck or to the trailer operatively associated with a cargo space defined within the truck or trailer for maintaining a controlled temperature environment within the cargo space.[0003]On commercially available transport refrigeration units used in connection with refrigerated trucks and refrigerated trailers, the compressor, and typically other components of the refrigeration system, for example fans, are powe...

Claims

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Application Information

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IPC IPC(8): F25B31/02F01N5/02
CPCF01N5/02F25B31/02F02G5/02F25B27/02H02J3/381F02B63/044F25D11/003H02J2300/10Y02T10/12H02J3/322
Inventor YAMANIS, JEANMIJANOVIC, STEVOCHOPKO, ROBERT A.BEKASI, THOMAS J.
Owner CARRIER CORP
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