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Combustor cap mounting structure for a turbine engine

A technology for turbine engines and burner caps, which is applied in the direction of burners, gas fuel burners, combustion chambers, etc., and can solve problems such as flame retention

Inactive Publication Date: 2013-10-30
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If fuel enters the low pressure chamber 133 in the volume between the outer circumferential surface of the combustor cap flange 118 and the inner circumferential surface of the front housing 130, a flame holding event may result

Method used

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  • Combustor cap mounting structure for a turbine engine
  • Combustor cap mounting structure for a turbine engine
  • Combustor cap mounting structure for a turbine engine

Examples

Experimental program
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Embodiment Construction

[0016] image 3 and Figure 4 A strut 160 is shown, which may be used to mount the combustor cap to the combustor cap barrel flange. The struts 160 replace the A-shaped spacer 116 used for the same purpose in the background art combustor cap assembly shown in FIGS. 1 and 2 . The strut 160 has an airfoil shape with a rounded leading edge 161 and a tapered / tapered trailing edge 163 . Additionally, an inner passage extends through the interior of strut 160 , the inner passage being located between inlet 162 and outlet 164 .

[0017] Figure 4 is a cross-sectional view of the strut 160 attached to the burner cap flange 150, Figure 4 The inner end 166 and outer end 168 of the strut 160 are shown generally parallel to each other. However, in alternative embodiments, the inner and outer ends may be angled relative to each other. In some embodiments, leading edge 161 and trailing edge 163 of each strut 160 may be angled relative to inner end 166 and outer end 168 . Figure 4 Al...

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PUM

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Abstract

A mounting structure for mounting a combustor cap 110 in a combustor of a turbine engine includes support struts 160 that are connected between the combustor cap 110 and a concentric combustor cap barrel flange 150. The support struts 160 may have an airfoil shape to minimize wakes created in a flow of compressed air that is passing over the support struts. Also, the support struts 160 may have an interior passageway that allows a portion of the compressed air to flow though the support strut 160. The flow of air passing through the support struts 160 may also pass through corresponding vent apertures in the combustor cap barrel flange 150 so that the flow of air passing through the support struts 160 is delivered into a space between the exterior of the combustor cap barrel flange 150 and a forward casing of the combustor.

Description

technical field [0001] The present invention relates to a turbine engine, and in particular to a mounting structure for a combustor cap of a turbine engine. Background technique [0002] Turbine engine combustors used in the power industry may include a combustor cap mounted near the forward end of the combustor. A plurality of fuel nozzles are typically mounted to the end cover and through the combustor cap. The stream of compressed air around the outer perimeter of the combustor cap turns 180° and then flows through fuel nozzles where it is mixed with fuel. Subsequently, downstream of the burner cap, the air-fuel mixture is ignited. [0003] Figures 1 and 2 illustrate a typical background art burner cap assembly installed in a burner. As shown in these figures, the combustor cap 110 has an opening 112 for receiving a plurality of fuel nozzles, the combustor cap 110 is mounted to the combustor cap barrel flange by a plurality of A-shaped spacers 116 ) 118. A-shaped spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/46
CPCF23R3/002F23R3/283
Inventor C.P.基纳J.斯图尔特
Owner GENERAL ELECTRIC CO