Statorcasing bleeding can cut the flow loss and improve the compressor efficiency.
静子机匣端壁引气能够有效减小静子叶排损失，提升压气机效率。
2
Think of it as a rotating transformer, with the primary windings residing in a stationary casing (stator) and the secondary conductors attached to an inner shaft (rotor).
Tesla's invention is, in essence, a rotating transformer. Its primary windings reside in a stationary steel casing (the stator) and and secondary conductors are attached to an inner shaft (the rotor).