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A method for distributing the fuel supply volume of multiple injection points in an engine transmission system

A technology of a transmission system and a distribution method, which is applied in the field of multi-spray point oil supply and oil supply distribution in an engine transmission system, can solve the problem of difficult oil supply and oil supply efficiency, and it is difficult to meet the requirements of high reliability, long life, high maintainability, The test results are quite different, so as to improve the design ability, improve the fuel supply effect, and improve the fuel supply efficiency of multiple injection points.

Active Publication Date: 2019-04-23
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

[0002] The existing gear oil supply design usually combines experience and gear transmission efficiency to distribute the oil volume. The gear transmission system of an aeroengine has a compact structure, complex working conditions, and many injection points that need to be supplied. The flow rate distributed by the traditional method is not only different from the test results Larger, the fuel supply efficiency is more difficult to meet the requirements of high reliability, long life and high maintainability of advanced aero-engines, and it is difficult to realize the reasonable distribution of limited fuel supply to each fuel supply injection point

Method used

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  • A method for distributing the fuel supply volume of multiple injection points in an engine transmission system

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Embodiment Construction

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses an engine driving system multi-nozzle fuel-feed fuel-flow distribution method. The engine driving system multi-nozzle fuel-feed fuel-flow distribution method comprises the following steps: Step 1, obtaining gear engagement heat; Step 2, obtaining initial flow coefficient of each nozzle according to the gear engagement heat; Step 3, obtaining initial flow of each nozzle; Step 4, obtaining supply and return fuel temperature difference; Step 5, forming a first relation; Step 6, calculating flow of each nozzle with the supply and return fuel temperature difference for input under the first relation; Step 7, obtaining total fuel flow of all the nozzles; and Step 8, making the total fuel flow of all the nozzles to be less than or equal to total fuel flow design index. The invention brings forward the engine driving system multi-nozzle fuel-feed fuel-flow distribution method for calculating and solving aero-engine driving system multi-nozzle fuel-feed fuel-flow distribution.

Description

technical field [0001] The invention relates to the technical field of an engine transmission system, in particular to a method for distributing the fuel supply quantity of multiple injection points of the engine transmission system. Background technique [0002] The existing gear oil supply design usually combines experience and gear transmission efficiency to distribute the oil volume. The gear transmission system of an aeroengine has a compact structure, complex working conditions, and many injection points that need to be supplied. The flow rate distributed by the traditional method is not only different from the test results Larger, the fuel supply efficiency is more difficult to meet the requirements of high reliability, long life and high maintainability of advanced aero-engines, and it is difficult to realize the reasonable distribution of limited fuel supply to each fuel supply injection point. [0003] Therefore, it is desirable to have a technical solution to over...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/06
CPCF02C7/06
Inventor 李芳侯明曦李国权邢彬郭梅孔祥锋乔恒稳
Owner AECC SHENYANG ENGINE RES INST
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