A low-temperature ignition guarantee device for a small gasoline engine of an unmanned aerial vehicle

Abstract

The invention relates to a low temperature ignition guaranteeing device of a small gasoline engine of an unmanned aerial vehicle. An emission of a small piston type engine of an unmanned aerial vehicle is mainly composed of un-combusted components, combustion products and excess air. Except N2, O2, H2, water vapour and the like are harmless, the rest is harmful components which are mainly composed of NOx, CO, HC, SO2, combustion particles and the like; in addition, energy which can be used also exists in tail gas. Power output of the small piston type engine of the unmanned aerial vehicle occupies 25%-42% of the total heat of fuel combustion, and the rest of the heat is discharged in the form of waste heat from cooling and the tail gas. Not only is energy waste caused, but also a certain degree of atmosphere heat pollution will be caused. According to the low temperature ignition guaranteeing device of the small gasoline engine of the unmanned aerial vehicle, the waste gas of the small piston type engine of the unmanned aerial vehicle is used for heating air entering the small piston type engine of the unmanned aerial vehicle, so that the purposes of energy conservation and emission reduction are achieved, and meanwhile the problem that the small piston type engine of the unmanned aerial vehicle works difficultly under the climate conditions of subzero low temperature and high altitudes is solved.

Description

technical field [0001] The invention relates to an air intake heating technology of a gasoline piston-type power system of an unmanned aerial vehicle, in particular to a low-temperature ignition guarantee device for a small gasoline engine of an unmanned aerial vehicle. Background technique [0002] Due to the characteristics of fast maneuvering, low cost of use, and simple maintenance and use, UAVs have been widely used at home and abroad. However, the current UAV remote sensing platform technology still has many shortcomings. Among them, sub-zero low temperature and high altitude are one of the daunting problems. Due to the sub-zero low temperature and high altitude, it is difficult to ignite the mixture of gasoline and air in the working process of conventional piston engines, so the engine is unstable and often stalls during flight. In order to maintain the technical characteristics of the low cost of drones, it must be unrealistic to switch to jet engines. Contents o...

AI Technical Summary

Problems solved by technology

Due to sub-zero low temperature and high altitude, it is difficult to ignite the mixture of gasoline and air in the working process of conventional piston engines, so the engine is unstable and often stalls during flight.

In order to maintain the technical characteristics of the low cost of drones, it is unrealistic to switch to jet engines

Images