Control system and method for reducing aeroengine low-temperature start-up load

Abstract

The invention discloses a control system for reducing the low-temperature starting load of an aero-engine. The aero-engine comprises a fuel system, a lubricating oil system and an oil supply system used for supplying lubricating oil to the lubricating oil system, and the control system comprises an electric control switch element which is arranged in the oil supply system and is in a normally closed state, a lubricating oil temperature sensor used for detecting the lubricating oil temperature, a fuel temperature sensor used for detecting the fuel temperature, a pressure sensor used for detecting the flight height of an aircraft, and a controller used for controlling a working state of the electric control switch element according to the detecting result of at least one of the lubricating oil temperature sensor, the fuel temperature sensor and the pressure sensor; and the electric control switch element, the lubricating oil temperature sensor, the fuel temperature sensor and the pressure sensor are all connected with the controller. According to the control system and method for reducing the low-temperature starting load of the aero-engine, the success rate of low-temperature starting of the aero-engine is increased, and meanwhile the time of low-temperature starting of the aero-engine is shortened.

Description

technical field [0001] The invention relates to the technical field of low-temperature starting of aero-engines, in particular to a control system and method for reducing the load of low-temperature starting of aero-engines. Background technique [0002] Lubricating oil pump load size is affected by temperature. In a low temperature environment, the viscosity of lubricating oil increases, resulting in a greater demand for power extracted by the lubricating oil pump from the engine starting system, which will lead to poor starting acceleration of the aeroengine, and even lead to unsuccessful starting. Existing aero-engines have not considered how to reduce the low-temperature starting load of aero-engines. Contents of the invention [0003] The invention provides a control system and method for lightening the low-temperature starting load of an aero-engine, so as to solve the technical problem that the existing aero-engine has poor starting acceleration or even unsuccessfu...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a control system and method for reducing the load of an aero-engine starting at low temperature, so as to solve the technical problem that the existing aero-engine has poor starting acceleration or even unsuccessful starting when it is started at low temperature.

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