Borneolum sheet leading-in device

Abstract

The invention belongs to the field of aero-engines, and particularly relates to a borneol leading-in device which is installed at an inlet of an engine and in front of an air inlet device, the influence of equipment on air inlet of the engine is reduced through reasonable layout, and simulation calculation and analysis are conducted through an air inlet flow field. The double electromagnets are used for driving the borneol to initially act, so that the action of the borneol can be controlled; the borneol leading-in mechanism stretches into the air inlet device and is thrown out close to an engine inlet, it is guaranteed that the borneol leading-in path is minimized, and the borneol is sucked in by an engine after being thrown in. An borneol sliding path protection device is designed, so that the airflow influence in the borneol sliding process is reduced; the sliding rail profile is reasonably designed to reduce the resistance in the sliding process.

Description

technical field [0001] The present application belongs to the field of aero-engines, and in particular relates to an ice flake introduction device. Background technique [0002] According to GJB241A "General Specifications for Aviation Turbojets and Turbofans", GJB4187-2001 "Aero-engine Ice Swallowing Test Requirements" and the requirements of the engine model development specification, when the aero-engine performs the ice-swallowing test, the test bench needs to use a special set of ice chips to introduce The device introduces the ice flakes into the engine. Before the ice flakes leave the device, they should be kept intact to complete the aero-engine ice flake swallowing test. The patent invents an ice flake introduction device installed above the air inlet. The ice flake introduction device is connected to the mounting bracket, and the ice flakes can be introduced into the engine through the ice box and the driving motor. [0003] The ice swallowing test of the small an...

AI Technical Summary

Problems solved by technology

[0004] Due to the huge difference in intake flow, flow velocity and structure between turbofan and turboshaft engines, the ice throwing device used in turboshaft engines cannot be applied to turbofan engines

[0005] The sliding rail type ice throwing device used by the turboshaft engine has the following disadvantages: the ice box is turned over by gravity, and the ice box will stop impacting with the slide rail after gravity turning, and the ice flakes will slide out. The gravity turning process cannot be effectively controlled, and the impact action is easily damaged. Ice flakes: The ice flakes have a long sliding path on the ice throwing device, equipment factors and airflow disturbances cause the ice flakes to slide out and the integrity rate cannot be guaranteed; the ice flakes have a long path to enter the engine after they are separated from the device, and the ice flakes are prone to collide with the air intake device during free flight damage its integrity

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