Reduced leakage of secondary flow seals greatly improves engine performance

The improvement and development of sealing technology is a field with great potential; with the improvement of the thermal cycle parameters of the engine, the sealing working conditions have also greatly increased, and the current sealing technology can no longer meet the requirements. Reducing the secondary flow seal leakage can greatly improve engine performance.

IHPTET plans to reduce the target phase of secondary flow seal leakage by 65%. After entering the mid-1980s, several countries with advanced aero-engine technology have listed new types of sealing technologies as “front-line forces for the development of next-generation high-performance aeroengines. "We have invested a lot of manpower and financial resources, and our development activities are extremely active.

Brush seals have been recognized as the simplest, most practical, and most effective replacement for dental caries. The British company RR first proposed the concept of brush seal in 1970. Based on research and development, it was the first to apply on the RB199 engine. In 1984, the United States introduced the British brush seal technology, pushing the development and development of brush seals in full swing.