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Deoxygenated fuel-cooler environmental control system pre-cooler for an aircraft

A control system and fuel technology, which is applied in the direction of adjusting fuel, aircraft parts, combustion chambers, etc., can solve the problem of engine work efficiency reduction and other issues

Inactive Publication Date: 2007-03-14
UNITED TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The blast bypass air flow is air from the fan line of the gas turbine engine, which further reduces the operating efficiency of the engine

Method used

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  • Deoxygenated fuel-cooler environmental control system pre-cooler for an aircraft

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Embodiment Construction

[0009] FIG. 1 shows a block diagram of a fuel-based thermal management system (TMS) 10 of an energy conversion device (ECD) 12 . The TMS includes a fuel circuit 14 and an environmental control system circuit 16 .

[0010] A fuel stabilization system (FSU) 18 receives liquid fuel (shown schematically) from a fuel storage system 20 . It should be understood that the location of the FSU 18 represents only one of many possible locations and that the FSU could be located in other locations while still being able to deoxygenate the fuel for use at high temperatures by the high temperature components.

[0011] ECD 12 can take various forms, where at some point before the fuel is ultimately used for processing, combustion or some form of energy release, if the dissolved oxygen in the fuel reaches a certain level, the fuel gains enough heat to support automatic Oxidation and coking. One form of ECD 12 is a gas turbine engine, in particular a turbofan engine shown schematically, which...

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Abstract

A fuel based thermal management system according to the present invention includes a fuel stabilization system which permits the fuel to exceed the traditional coking temperatures. An air-to-fuel heat exchanger operates as an environmental control system (ECS) pre-cooler such that the heat from the engine compressor bleed air is rejected into the fuel to maintain engine operating efficiency.

Description

technical field [0001] The present invention relates to a thermal energy management system, in particular a thermal energy management system using a fuel stabilization unit with a fuel-air precooler for an environmental control system of an aircraft. Background technique [0002] Aircraft use sophisticated thermal management systems (TMS) for component and ambient thermal management. Environmental Control Systems (ECS) provide conditioned air to enclosures such as aircraft cabins and cockpits. Traditional ECS uses an air circulation cooling system in a heat exchange relationship with a liquid circuit. Liquid circuits are typically used to cool other thermal loads, such as avionics components. The interactions between air and liquid subsystems are complex. [0003] In conventional ECS, the bleed flow is produced from the intermediate or high pressure engine compressor portion of the gas turbine engine. Although effective, the punitive price of using bleed air is a reducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D37/34B64D13/08F23R3/28
CPCB64D2013/0659B64D13/06Y02T50/56B64D37/32Y02T50/50B01D19/00
Inventor R·L·贝特D·R·萨巴蒂诺M·K·萨姆S·卡斯卢斯基
Owner UNITED TECH CORP
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