Turbine seal rub protection means
OwnerRonald E. Brandoninventor
Life of this patent
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Abstract
In a compressible rotating machine having stationary and rotating elements and employing seal teeth between the stationary and rotating elements capable of being rubbed, worn and damaged by the rotating elements, the improvement which comprises providing a small patch of hard, cutting or grinding material on a small portion of the rotating elements disposed in opposition to the seal teeth and capable of intermittent cutting of the seal teeth during temporary contact so as to avoid mushrooming or of melting of the teeth and to leave them sharp and thin and to prevent grooving of the surface of the rotating elements.
Claims8
In a compressible rotating machine having stationary and rotating elements and employing seal teeth between the stationary and rotating elements capable of being rubbed, worn and damaged by the rotating elements, the improvement which comprises a small patch of hard, cutting and grinding material on a small portion of the rotating element disposed in opposition to the seal teeth and capable of intermittent cutting of the seal teeth without melting and mushrooming during temporary contact so as to leave them sharp and thin and preventing harm such as grooving to the surface of the rotating elements.
Dependencies are inferred from the claim text.