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Multi-spool by-pass turbofan engine

A turbofan engine and multi-rotor technology, applied in engine manufacturing, engine components, machines/engines, etc., can solve complex problems and achieve the effect of reducing fuel consumption

Inactive Publication Date: 2007-07-04
WILLIAMS INTERNATIONAL CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But when this principle is applied to a three-rotor jet engine, the problem becomes more complicated

Method used

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  • Multi-spool by-pass turbofan engine
  • Multi-spool by-pass turbofan engine
  • Multi-spool by-pass turbofan engine

Examples

Experimental program
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Embodiment Construction

[0025] Detailed Description of Preferred Embodiments

[0026] As shown in FIG. 1 , a three-rotor bypass turbofan engine 6 is schematically shown, and includes a cylindrical casing 8 , the outermost portion of which defines the outer wall of an annular bypass passage 10 . A low pressure rotor 12 is rotatable about a central longitudinal axis 14 of the engine 6 and includes a shaft 16 having a fan 18 and a low pressure compressor 19 at the front end of the shaft and a low pressure turbine 20 at the rear end of the shaft.

[0027] An intermediate pressure rotor 22 is arranged coaxially about the shaft 16 of the low pressure stage 12 and also includes a shaft 24 , an intermediate compressor 26 and an intermediate turbine 28 .

[0028] A high-pressure rotor assembly 30 is telescopic on shafts 16 and 24 of the low-pressure and medium-pressure rotors 12 and 22, respectively, and includes a shaft 32 with a high-pressure compressor 34 at its front end and a high-pressure turbine at its...

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PUM

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Abstract

A multi-spool turbofan engine has a plurality of circumferentially spaced poppet valves with diverters secured thereto for precisely controlling bleed of combustion gas aft of the high pressure turbine whereby the high pressure spool operates at high idle RPM so as to power accessories and the low pressure spool operates at low RPM so as to minimize noise and fuel consumption.

Description

technical field [0001] This invention relates generally to gas turbines, and more particularly to a multi-rotor bypass turbofan engine which can be used as an auxiliary or main engine of a jet aircraft. Background technique [0002] A modern jet requires electrical power to power the many ancillary equipment that supports the operation of the aircraft on the ground, especially when the aircraft is parked on the tarmac. Usually, the power of these auxiliary equipment is provided by the support equipment on the ground or by the auxiliary engine (APU) on the aircraft to avoid problems such as excessive fuel consumption, noise and turbulence caused by the operation of the main engine of the aircraft. Although the onboard auxiliary engine provides the greatest flexibility, it has a negative impact on the payload and payload volume of the aircraft. Ground support equipment is often not available. [0003] Therefore, improvements to jet engines have been made to date to address t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K3/04F01D25/00F01D25/24F02C3/13F02C7/18F02C9/18F02K3/075
CPCF02C9/18F02C3/13F02K3/075F05D2250/231F05B2250/231Y02T50/60
Inventor M·博恩霍夫特D·亚雷尔
Owner WILLIAMS INTERNATIONAL CO LLC