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Circumferential fuel circuit divider

A technology of fuel and fuel holes, applied in combustion chambers, combustion methods, combustion equipment, etc., can solve the problems of high manufacturing costs

Inactive Publication Date: 2010-05-26
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this configuration with holes in the blades is relatively expensive to manufacture

Method used

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  • Circumferential fuel circuit divider
  • Circumferential fuel circuit divider
  • Circumferential fuel circuit divider

Examples

Experimental program
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Embodiment Construction

[0018] see figure 1 A fuel nozzle 100 for a turbomachine includes a plurality of output fuel holes 102 , 104 that may be disposed peripherally (ie, on a perimeter) around a circumference of a hub 106 of the fuel nozzle 100 . In one embodiment, the hub 106 may have a cylindrical configuration and the holes 102 , 104 may be circumferentially spaced in an alternating repeating fashion around the perimeter of the hub 106 . Alternatively, the output fuel holes 102 , 104 may be spaced around the hub 106 in a random, non-repeating manner. The fuel nozzle 100 may be a swirl nozzle having a plurality of swirl vanes 108 located around an outer periphery of a hub 106 with, for example, even or consistent spacing therebetween. The fuel holes 102, 104 may be circular, slotted, or exhibit some other suitable configuration. Furthermore, in one embodiment, all of the fuel holes 102 , 104 may be aligned in the same axial plane relative to the upstream / downstream axis of the fuel nozzle 100 ....

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PUM

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Abstract

A fuel nozzle includes a hub with a plurality of output fuel holes arranged perimetrically around the hub. At least two plates located inside the hub define fuel flow passages between an input fuel flow and the output fuel holes. A plurality of enclosures is located between an inner surface of the hub and an outer one of the plates. Each enclosure is in fuel flow communication with first ones of the output fuel holes and the input fuel flow to define a first one of the passages. The two plates define a second one of the fuel flow passages which is in fuel flow communication with the input fuel flow and with second ones of the output fuel holes.

Description

technical field [0001] The presently disclosed subject matter relates to turbomachines, and more particularly, the present invention relates to fuel nozzles and the present invention relates to an apparatus having the nozzle peripherally located around the circumference of the nozzle hub output fuel holes on the hub, said means being located on said hub of said nozzle for dividing incoming fuel flow between some of said fuel holes. Background technique [0002] The swozzle fuel nozzle may be provided with two separate sets of output fuel holes on each of the swirler vanes provided on the hub. The holes in the two sets of output fuel holes are typically axially separated from each other on each vane by a mechanical fuel delivery line. This separate grouping of holes generally allows separate regulation of the fuel flow between the two resulting fuel lines. However, the manufacturing cost of this configuration with holes on the blade is relatively high. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/28
CPCF23R3/14F23R3/286
Inventor J·T·斯图尔特
Owner GENERAL ELECTRIC CO