| 摘要 |
13DV-9930 A hydro-lift seal for the bore region of a seal segment having a shallow groove inlet on the high pressure side of the seal segment. The shallow groove inlet is aerodynamically connected to a shallow groove which extends in the direction of rotation of a seal race, the seal race being connected to a rotating shaft. The shallow groove is aerodynamically connected to a deep groove which has an interface region which is perpendicular to the shallow groove and a region which is parallel to the shallow groove. A vent groove located on the low pressure side of the seal segment is parallel to that region of the deep grove which is parallel to the shallow groove A plurality of venting holes is located in the vent groove which connect the vent groove to the high pressure side of the seal segment.
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