Plasma combustion-supporting method for engine combustion chamber

Abstract

A plasma combustion-supporting method of an engine combustion chamber, in which a plasma combustion-supporting actuator is installed on the engine casing outside the engine combustion chamber, and chemically active particles are pre-generated in the plasma combustion-supporting actuator to realize the control of the annular combustion chamber of the aeroengine and the ring pipe of the aeroengine Combustion support for type combustors, afterburners of aero-engines and annular combustors of ground gas turbine engines. The invention can improve the average temperature of the outlet section of the engine combustion chamber and the combustion efficiency of the combustion chamber, and improve the inhomogeneity of the temperature distribution at the outlet of the combustion chamber. The invention does not need to change the original structure of the engine combustion chamber, inserts the plasma combustion-supporting actuator into the flame tube, avoids the ablation of the actuator by the high temperature in the combustion area, and also reduces the difficulty of high-voltage electric shielding of the actuator. The electric safety of the plasma combustion-supporting actuator is guaranteed.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a plasma combustion-supporting method for an engine combustion chamber. Background technique [0002] With the continuous development of thermodynamic machinery, higher requirements are placed on the performance of the engine combustion chamber. In the field of military aeroengines, in order to greatly increase the thrust-to-weight ratio or power-to-weight ratio, the combustion chamber is developing towards high temperature rise and high stability. Both have a large temperature rise and a relatively wide flameout boundary, and at the same time ensure that the temperature field at the outlet of the combustion chamber has a good quality. In the fields of civil aviation engines, ground gas turbines, etc., due to the consideration of economy and environmental protection, low fuel consumption and low pollution combustion are the main development directions of the combustion chambers, and ...

AI Technical Summary

Problems solved by technology

However, this invention proposes a plasma combustion-supporting actuator device and its structure for generating chemically active particles based on the plasma combustion-supporting engine combustion chamber, and does not propose a complete plasma combustion-supporting actuator applied to the engine The method of combustion in the combustion chamber

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