![]() Reducing the gap between the fins and the honeycomb is the most cost-effective way to improve sealing efficiency, however, it also increases the risk of fins rubbing against the honeycomb. A bushing commonly used is the honeycomb seal which is brazed to the surface of the stationary part. The abradable bushings rub against the fins without causing damage to rotating parts while maintaining an effective sealing interface. ![]() A common sealing system used in aero−engines to control airflow leakage is the labyrinth seal, which consists of several fins on the rotating part and a bushing on the stationary part. Reducing airflow leakage is an effective measure to improve the sealing effect, and it is also one of the hotspots in the development of aero−engines in recent decades. ![]()
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