| 摘要 |
In a rotating fluid machine, a high-pressure working medium introducing hole, for introducing high-temperature high-pressure steam to a slide surface, is opened to a fixed side valve plate. Therefore, when a single first high-pressure working medium passage which opens from the fixed side valve plate to the slide surface and a plurality of second high-pressure working medium passages which open from a movable side valve plate to the slide surface, sequentially communicate with each other with rotation of a rotor, the high-temperature high-pressure steam from the first high-pressure working medium passage and the high-temperature high-pressure steam from the high-pressure working medium introducing hole are uniformly introduced to the entirety of the slide surface, and a change in the surface pressure of the slide surface is suppressed to stabilize the behavior of the fixed side valve plate, thus preventing leakage of the high-temperature high-pressure steam and the occurrence of abnormal wear.
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