A built-in fuel manifold for dual-circuit fuel delivery and atomization

A fuel main pipe, built-in technology, applied in the direction of combustion chamber, combustion method, combustion equipment, etc., can solve the problems of impact, influence of external channel airflow, instability of fuel flow, etc.

Active Publication Date: 2020-06-30
中国航发贵阳发动机设计研究所
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  • 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 structure of the nozzle pipeline is complex, the end surface of the nozzle is prone to carbon deposition, 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, which have great influence on the performance of the engine and the performance of the fuel manifold have serious repercussions

Method used

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  • A built-in fuel manifold for dual-circuit fuel delivery and atomization
  • A built-in fuel manifold for dual-circuit fuel delivery and atomization
  • A built-in fuel manifold for dual-circuit fuel delivery 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

A built-in fuel manifold for dual-circuit fuel delivery and atomization, consisting of manifold (1) and nozzles (2), the fuel manifold is fixed by a pillar with a sphere (3), and the nozzle housing (4) The oil supply pipe (5) of the main oil circuit is connected with the oil supply pipe (6) of the auxiliary oil circuit, the heat protection of the pipeline is realized through the outer cover (7) and the heat insulation layer (8), and the bushing (9) with threaded oil filter The threaded structure on the surface of the auxiliary oil filter (10) realizes the filtration and stable flow of the fuel, realizes the centrifugal atomization of the fuel through the swirl groove on the swirler (11) and the nozzle swirler (12), and realizes the centrifugal atomization of the fuel through the gas hood The oblique air inlet on (13) reduces the carbon deposition of the nozzle. The fuel main pipe can meet the needs of different fuel supply characteristics of the double oil circuit, and has good atomization effect, compact structure, small mass, little influence of fuel gravity, no carbon deposit on the end surface of the nozzle, and not easy to be affected by fuel flow instability. For use in aero-engines and gas turbine combustors.

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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Patent Type & Authority Patents(China)
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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