| 摘要 |
The contact pressure plate (22) is mainly ring-shaped. It has a channel arrangement (58) extending from a radially inner section (62) to a radially outer section (64). The arrangement has one or more channels (60), which are open within these sections. Each channel has mainly even profiling and/or profile size. A wall section separating two channels is pref. profiled like a turbine blade. The channels are formed in a cast plate by the use of lost elements, pref. of wax.
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