Unlock instant, AI-driven research and patent intelligence for your innovation.

Gas turbine fuel injector with metering cavity

A technology of fuel injectors and gas turbines, which is applied in the direction of gas turbine devices, fuel valves of turbine/propulsion devices, turbine/propulsion fuel delivery systems, etc., and can solve problems that are not conducive to GTE current limitation

Active Publication Date: 2017-03-29
SOLAR TURBINES
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, coking can lead to current restriction that is detrimental to GTE operation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas turbine fuel injector with metering cavity
  • Gas turbine fuel injector with metering cavity
  • Gas turbine fuel injector with metering cavity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 An exemplary gas turbine engine (GTE) 10 is shown. GTE 10 may have compressor system 12 , combustor system 14 , turbine system 16 , and exhaust system 18 disposed along engine shaft 98 , among other systems. Compressor system 12 compresses air to high pressure and temperature (approximately 200 psi and 800°F (426.7°C) respectively) and delivers the compressed air to casing 20 of combustor system 14 . The compressed air is then directed from the housing 20 into one or more fuel injectors 50 located therein. The compressed air is mixed with fuel in fuel injector 50 and the mixture is introduced into combustion chamber 22 . The fuel-air mixture ignites and combusts in combustion chamber 22 to produce combustion gases. These combustion gases are directed to a turbine system 16 . A turbine system 16 extracts energy from the combustion gases and discharges the exhaust into the atmosphere through an exhaust system 18 . As mentioned above, figure 1 The configurat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fuel injector (50) for a gas turbine engine (10) may include a flow passage for extending a fuel-air mixture longitudinally through the fuel injector, and a fuel passage ( 62). The fuel passage may be adapted to inject liquid fuel into the flow passage. The fuel injector may also include an annular housing (70) disposed circumferentially around the fuel passage to define an insulated chamber (68) around the passage. The fuel injector may also include an annular cover (86) extending around the fuel injector to define a metering chamber (80). The fuel injector may further include one or more purge holes (92) fluidly connecting the metering chamber to the insulated chamber, and one or more fluidly connecting the metering chamber to the cavity (20) external to the fuel injector or a plurality of metering holes (90).

Description

technical field [0001] The present invention relates generally to fuel injectors for gas turbine engines and, more particularly, to gas turbine fuel injectors having a metering cavity. Background technique [0002] A gas turbine engine (GTE) generates power by extracting energy from a hot stream produced by the combustion of fuel in a stream of compressed air. In a GTE, a mixture of compressed air and fuel is combusted in the combustion chamber of a turbine engine. The resulting hot gases spin the blades of the turbine to generate mechanical power. In a typical GTE, a fuel injector introduces a liquid or gaseous hydrocarbon fuel into the combustion chamber. Combustion of fuel in the combustor can generate temperatures in excess of 2000°F (1093.3°C). High temperatures near the fuel injectors can cause coking and carbon deposits in the GTE's liquid fuel lines. Over time, coking can lead to current restriction that is detrimental to GTE operation. In some fuel injectors, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/22F23R3/28F02C9/26
CPCF02C7/232F23R3/14F23R3/286F23R3/343F23R3/36F23D17/002F02C7/22F02C7/24F23K5/18F23R3/283
Inventor C·Z·特瓦都查博J·G·勒施
Owner SOLAR TURBINES