Brush Seals: Applications

MTU brush seals have widely proved their worth, being superior to labyrinth seals in various aspects. This is why the technology is finding a home on practically every engine in the pipeline worldwide. Meanwhile, MTU is offering brush seal solutions also for applications other than aircraft engines.

MTU customers include companies from a variety of industries as brush seals are finding a home increasingly also in industrial gas and steam turbines, compressors and other mechanical engineering applications.

In addition, brush seals are successfully being used in additive manufacturing facilities.

MTU's experts have been busy developing innovative seals for almost any application for over three decades. In the process, they closely cooperate with customers, who benefit from MTU's experience in engine construction, from direct access to highly advanced test facilities and from participations in important research and development programs.

Gas and steam turbines

MTU brush seals greatly reduce leakage losses which is the major benefit afforded by these innovative seals: The reduce leakage at the various sealing positions by up to 80 percent thus enhancing the efficiency of steam turbines by up to two percent. No mean feat considering that – according to studies conducted by GE Power Systems – about one third of the performance losses of steam turbines is attributable to leakage.

Compressors / Pumps

Another field of application for MTU brush seals are compressors and pumps. At very little investment, MTU customers reap benefits in terms of:

  •     Operating cost
  •     Efficiency
  •     Environmental protection

Whether it is a new design or a retrofit, MTU has the proper solution for any type of seal location.

General mechanical engineering

In mechanical engineering, the use of MTU brush seals is recommended at all sealing points requiring solid sealing action and reliability. In cooperation with the machine tool industry, for example, MTU is developing brush seals for use on high-speed spindles.

Additive manufacturing