Non-contact type shaft sealing device
A non-contact type shaft sealing device comprising a stationary sealing ring (9) disposed to axially oppose a rotational sealing ring (2) provided on a rotational shaft (1) of a device that will be shaft-sealed, wherein a number n of air inlets (9b) provided in the stationary sealing ring (9) is in...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A non-contact type shaft sealing device comprising a stationary sealing ring (9) disposed to axially oppose a rotational sealing ring (2) provided on a rotational shaft (1) of a device that will be shaft-sealed, wherein a number n of air inlets (9b) provided in the stationary sealing ring (9) is in a range of 3 to 24; a bore diameter d of a throttling mechanism provided in each of the air inlets (9b) is in a range of 0.05 to 3 mm; and concurrently, a dimensionless quantity alpha defined aswhere h=inter-sealing-surface gap, andD=shaft diameter,is 1 |
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