Aero Engine Nozzle
The nozzle is an important part of an aero engine. Its main function is to make the gas produced by the engine continue to expand and convert the available work of the gas into kinetic energy. The gas is discharged backward at a high speed, and the engine produces a reaction force. According to the changes in the area along the flow path, nozzles can be divided into two categories: convergent nozzles (subsonic) and convergent nozzles (supersonic). It can also be divided into conventional nozzle and vector nozzle according to whether it has vector function.
Large bypass ratio engine nozzle
Large bypass ratio engine nozzles can be divided into two types: separated exhaust and mixed exhaust. The difference is whether the cold air flow from the fan duct is discharged separately through the nozzle or mixed with high-temperature gas. Since the inlet pressure of the large duct is lower than that of the engine nozzle, the convergent nozzle or the plug nozzle with the outer expansion cone is generally used for either the separated exhaust or the mixed exhaust.
Small bypass ratio engine nozzle
Small bypass ratio engines are generally used in military aircraft. In order to meet the needs of working in an afterburner state, the nozzle area is required to be adjusted with the working state of the engine. The adjustable convergent nozzle is the nozzle form used in the early military afterburner engines. It has a simple structure and light weight. It can work efficiently within the nozzle expansion ratio range of 1 to 5. It is a good choice for subsonic aircraft and short-time supersonic aircraft.
Zhuzhou Kefen Industrial Co., Ltd. is a high-tech enterprise specializing in the manufacture and sales of tooling and fixtures for aviation products, automobiles and locomotives; aircraft blade molds and measuring tools! The company is mainly engaged in precision molds for various parts of aero-engines, and has 20 years of design and production experience in the field of wax pattern molds. Welcome all distinguished customers to visit our company!