Improved fuel delivery system

A technology of fuel delivery and fuel, which is applied in the direction of turbine/propulsion fuel delivery system, charging system, fuel valve of turbine/propulsion device, etc. It can solve the problems of reducing components, increasing the number of components, etc., and achieving the effect of improving capacity

Inactive Publication Date: 2009-07-01
ARGO TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While other systems in the prior art have used bypassing as an attempted solution, the adoption of this approach increases the number of components, contradicting the trend to reduce components

Method used

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Examples

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Embodiment Construction

[0026] By means of other background technologies of the present invention, figure 1 A high level and more detailed conventional engine fuel system is schematically shown. Since such systems are generally known to those skilled in the art, only a brief overview of selected parts is provided to understand the features and benefits offered by the present invention.

[0027] as in figure 1 As shown schematically in the high level diagram in , the prior art system includes a fuel pump 60 for supplying fuel through a filter 62 to a fuel controller 64 . The pump is a displacement device that delivers a metered flow of fuel to the fuel controller based on engine speed. The delivered portion of the fuel flow is metered and delivered to an engine combustion chamber (not shown). The metered portion of the fuel flow is supplied to the combustion chambers via fuel flow meter 66 before reaching the fuel distribution manifold and fuel nozzles 68 . Another portion of the fuel flow deliver...

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Abstract

The present invention provides a fuel delivery system with closed loop mass flow control between metering valve (250) and pump (208). Pressure changes across the valve are monitored, and pump operation is altered in response to such pressure changes. A thermal controller (290) monitors fuel temperature and recirculates a portion of the fuel through heat exchanger (202). The system is available as an original configuration or as a retrofit accessory.

Description

technical field [0001] This invention relates to turbine engine assemblies and, more particularly, to fuel delivery systems for such engines. It should be understood, however, that the system may find equally applicable application in related systems or environments requiring high reliability, low cost, and low weight without sacrificing performance. Background technique [0002] Current fuel delivery systems typically use a centrifugal boost stage to direct the pressurized fluid to a filter and then pass the pressurized fluid through a gear stage or gear pump. The fuel then flows to the metering valve, enters the pressure control valve, from which it ultimately flows to the fuel nozzles associated with the turbine engine. Under varying pump suction conditions, the centrifugal propulsion stage provides the pressure and fuel flow to fully fill the high pressure stage with homogeneous liquid fuel (ie, no vapor). For example, pump suction inlet conditions may include low pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C9/26F02C7/232F02C9/28F02C9/30F04C2/18F04C2/344F04C14/22
CPCF05D2270/303F04C2270/20F04C2/18F04C2270/19F04C2/3442F02C9/263F02C9/30F04C14/226F02C9/26
Inventor 马丁·A·克莱门茨
Owner ARGO TECH CORP
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