Function integrated fuel valve assembly

A valve assembly and valve technology, which is applied to engine components, fuel valves of turbine/propulsion devices, and turbine/propulsion fuel delivery systems, etc. The effect of successful start and reduction of parking rate

Active Publication Date: 2022-02-11
AECC HUNAN AVIATION POWERPLANT RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing aero-engine fuel system, the fuel distribution of the main and auxiliary oil circuits is realized by using the fuel distributor. Usually, the fuel pressure and the spring force act on the valve. The main and auxiliary fuel lines are connected to realize the fuel distribution of the main and auxiliary fuel lines of the engine. After the engine stops, the fuel in the fuel main line is released into the atmosphere through the oil leakage port. Rapid fuel cut-off to prevent over-revving, but no rapid re-fueling to prevent stalling when engine RPM is below over-revving

Method used

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] A functionally integrated fuel valve assembly such as figure 1 Shown: including auxiliary oil circuit valve 10, main oil circuit valve 20, selection valve 30, over-rotation solenoid valve 40;

[0041] Wherein, the auxiliary oil circuit valve 10 is respectively connected with the oil leakage port, the fuel pump regulato...

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Abstract

The invention discloses a function integration fuel valve assembly which comprises an auxiliary oil way valve, a main oil way valve, a selection valve and an over-rotation electromagnetic valve. The auxiliary oil way valve is connected with an oil leakage port, a fuel pump regulator and a selection valve through different oil outlets; the main oil way valve is connected with the oil leakage port, the fuel pump regulator and the selection valve through different oil outlets; the selection valve is connected with an auxiliary fuel nozzle, a main fuel nozzle and the fuel pump regulator through different fuel outlets; the over-rotation electromagnetic valve is arranged between the selection valve and the fuel pump regulator; and the fuel oil inlet is connected to the auxiliary oil way valve, the main oil way valve and the selection valve. According to the fuel valve assembly, the compact fuel valve assembly which is integrated in function and has the fuel distribution function and the over-rotation non-stop function is provided for an aero-engine fuel system, the over-rotation non-stop function of an engine can be achieved through the fuel valve assembly, and the stop rate of the engine is reduced.

Description

technical field [0001] The invention relates to the field of engines, in particular to a function-integrated fuel valve assembly. Background technique [0002] In the existing aero-engine fuel system, the fuel distribution of the main and auxiliary oil circuits is realized by using the fuel distributor. Usually, the fuel pressure and the spring force act on the valve. The main and auxiliary fuel lines are connected to realize the fuel distribution of the main and auxiliary fuel lines of the engine. After the engine stops, the fuel in the fuel main line is released into the atmosphere through the oil leakage port. Rapid fuel cut-off to prevent over-revving, but no rapid re-fueling to prevent stalling when the engine speed is below over-revving. Therefore, there is an urgent need to provide a device capable of simultaneously realizing the two functions of fuel distribution and over-rotation oil return, so that it can meet the requirements of engine fuel distribution and over-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/232
CPCF02C7/232
Inventor 颜秋英周秀清胡毅范一博
Owner AECC HUNAN AVIATION POWERPLANT RES INST
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