Internal fuel main pipe for double-way fuel conveying and atomization

A fuel manifold, built-in technology, used in combustion chambers, combustion methods, combustion equipment, etc., can solve problems such as the large influence of fuel gravity effect, easy carbon deposition on the nozzle end face, and other problems

Active Publication Date: 2019-01-04
中国航发贵阳发动机设计研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the ordinary single-oil fuel main pipe cannot meet the fuel supply requirements of some equipment under certain working conditions, the fuel main pipes used in some aero-engines and gas turbines are mostly external dual-oil fuel main pipes, but the quality of these fuel main pipes Large, the gravity effect of the fuel is greatly affected, the s...

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  • Internal fuel main pipe for double-way fuel conveying and atomization
  • Internal fuel main pipe for double-way fuel conveying and atomization
  • Internal fuel main pipe for double-way fuel conveying and atomization

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Embodiment Construction

[0017] Such as figure 1 As shown, the built-in fuel main pipe of the present invention is mainly composed of a pillar with a sphere, a nozzle housing, a main oil supply pipe, an auxiliary oil supply pipe, an outer cover, a heat insulation layer, a bushing with a threaded oil filter, an auxiliary Oil filter, swirler, nozzle swirler, lock ring, main oil nozzle, gas cover, main oil elbow joint, auxiliary oil elbow joint, main oil tee pipe joint and auxiliary oil tee Composition of pipe joints.

[0018] The built-in fuel main pipe is fixed outside the equipment through the interference fit between the positioning pin and the ball in the pillar with the ball, because the ball in the pillar with the ball can rotate freely in the pillar, but the closing of the end face of the pillar can prevent the ball from falling off , this structure facilitates the fixed installation of the fuel main pipe; the main oil supply pipe and the auxiliary oil supply pipe are connected with the nozzle h...

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Abstract

The invention discloses an internal fuel main pipe for double-way fuel conveying and atomization. The internal fuel main pipe consists of a main pipe (1) and a nozzle (2); the fuel main pipe is fixedthrough a support column (3) with a ball; a main-way fuel supply pipe (5) and a secondary-way fuel supply pipe (6) are connected through a nozzle shell (4); the heat protection of the pipe is realizedthrough a cover (7) and a thermal insulation layer (8); through a bushing (9) with a thread fuel filter and a thread surface on the surface of a secondary fuel filter (10), the filtration and the stable flowing of fuel are realized; the centrifugal atomization of the fuel is realized through cyclone grooves on a cyclone (11) and a nozzle cyclone (12); and accumulated carbons on the nozzle are reduced through inclined intake holes on a gas cover (13). The fuel main pipe can meet the demands of different fuel supply characteristics of double fuel ways, has the advantages of good atomization effect, compact structure, low mass, low influence on the fuel gravity, difficult accumulation of carbons on the end surface of the nozzle and difficult influence from instable fuel flowing, and is suitable for an aero-engine and a gas turbine combustion chamber.

Description

technical field [0001] The invention belongs to the field of engines, and in particular relates to a built-in fuel main pipe for fuel delivery and atomization of dual oil channels. Background technique [0002] Since the ordinary single oil circuit fuel main pipe cannot meet the fuel supply requirements of some equipment under certain working conditions, the fuel main pipes used in some aero-engines and gas turbines are mostly external dual oil circuit fuel main pipes, but the quality of these fuel main pipes Large, the gravity effect of the fuel is greatly affected, the structure of the nozzle pipeline is complex, the end surface of the nozzle is easy to deposit carbon, and the air flow in the external channel is affected to a certain extent, and it is easily affected by the instability of the fuel flow. These have a great impact on the performance of the engine and the fuel manifold. have serious repercussions. Contents of the invention [0003] The object of the presen...

Claims

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Application Information

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IPC IPC(8): F23R3/38
CPCF23R3/38F23R2900/00004
Inventor 卢铭涛邹玉翠万兆宝潘世海
Owner 中国航发贵阳发动机设计研究所
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