航空機エンジンシール

Introduction to aircraft engine seal

Aircraft engines are one of the core components of aircraft, and engine seals play an important role in ensuring the normal operation and reliability of engines. Aircraft engine seals prevent liquids, gases and particles from entering critical parts of the engine and ensure sealing performance between systems.

定義

Aircraft engine seals are sealing elements made of special materials used to fill gaps between internal parts of the engine and prevent the leakage and ingress of gases, liquids and particles. Engine seals are typically made of high-temperature, wear-resistant, and corrosion-resistant materials such as metals, ceramics and high-temperature rubber.

Aircraft engine seal function

シール機能

The main function of aircraft engine seal is to provide reliable sealing performance, ensure air and liquid tightness between critical components, and prevent leakage of gas and liquids. The quality of the seals directly affects the performance and efficiency of the engine.

プロテクション機能

Engine seals also prevent external particles, dust and moisture from entering the engine, protecting critical components from wear, corrosion and contamination. They play an important role in keeping the interior of the engine clean and dry.

Aircraft engine seals type

Piston ring seal

Piston ring seals are located between the engine piston and cylinder walls to prevent high-pressure gases from the combustion chamber from leaking into the crankcase, while also preventing lubricating oil from entering the combustion chamber. Piston ring seals are usually made of metal materials and are resistant to wear and high temperatures.

Shaft seal

Shaft seals are mainly used in the bearing and rotor parts of the engine to prevent oil leakage and external particles from entering the bearings. Shaft seals are usually made of rubber or metal, which has good sealing and wear resistance.

タービンシール

Turbine seals are used in engine turbine and compressor sections to prevent high-temperature and high-pressure gas leakage and external particles from entering. Turbine seals are typically made of high-temperature alloys and ceramic materials with excellent heat and corrosion resistance.

Fuel sealing

Fuel seals are used in the connecting parts of the fuel system to ensure the sealing performance of fuel lines and prevent fuel leakage and fire risks. Fuel seals are typically made of high-temperature rubber and metal to withstand high pressures and temperatures.

Aircraft engine seal application scenarios

Turbo engine

Turbine engines are the mainstream type of modern aero engines, and turbine engine seals play a vital role in turbine engines. The high-temperature and high-pressure environment of turbine engines requires seals with excellent heat, abrasion and corrosion resistance to ensure airtight and liquid tightness of the turbine and compressor sections.

Piston engine

A piston engine is a traditional type of engine in which a piston ring seal plays a critical role in sealing between the piston and the cylinder wall. They prevent high-pressure gases from the combustion chamber from leaking into the crankcase and prevent the lubricating oil inside the crankcase from entering the combustion chamber to maintain the normal operation and life of the engine.

Shaft seals and fuel seals are widely used in various types of aircraft engine seals. Shaft seals are used to protect the bearing and rotor sections of the engine, ensuring the sealing performance of the lubricating oil and the barrier of external particles. Fuel seals are used in the connection parts of the fuel system to avoid fuel leakage and potential fire risks.

概要

Aircraft engine seals have an important position and role in the aviation industry. They not only guarantee the normal operation and reliability of the engine, but also improve the performance and efficiency of the engine. Different types of engine seals perform critical sealing and protective functions in different locations.

With the continuous development of aviation technology, the requirements for aircraft engine seals are also increasing, such as higher temperature and pressure resistance, longer service life, etc. As a result, seal manufacturers and aeronautical engineers will continue to work on developing and improving seal materials and designs to meet the needs of the aviation industry and advance aviation technology.