CONTACTLESS SEALS FOR GAS TURBINE ENGINES
First Claim
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1. A seal, comprising:
- a first seal structure;
a second seal structure separated from the first seal structure by a gap; and
an injector with an outlet extending from the first seal structure into the gap, wherein the outlet is in fluid communication with a fluid source for issuing fluid against the second seal structure for magnifying a vortex formed within the gap by fluid traversing the gap.
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Abstract
A seal for a gas turbine engine includes a first seal structure and a second seal structure. The first seal structure is separated from the second seal structure by a gap. The first seal structure includes an injector extending into the gap with an outlet that is in fluid communication with a fluid source. Fluid issuing from the outlet and against the second seal structure magnifies a vortex formed within the gap by fluid traversing the gap.
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Citations
20 Claims
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1. A seal, comprising:
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a first seal structure; a second seal structure separated from the first seal structure by a gap; and an injector with an outlet extending from the first seal structure into the gap, wherein the outlet is in fluid communication with a fluid source for issuing fluid against the second seal structure for magnifying a vortex formed within the gap by fluid traversing the gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A gas turbine engine, comprising:
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a stator portion; a rotor portion separated from the stator portion by a gap; a first seal structure arranged on the rotor portion; and a second seal structure arranged on the stator portion opposite the first seal structure, wherein the first seal structure includes an injector with an outlet extending from the first seal structure into the gap, wherein the outlet is in fluid communication with a fluid source for issuing fluid against the second seal structure, thereby magnifying a first and second vortices within the gap and creating a third vortex within the gap. - View Dependent Claims (18, 19, 20)
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Specification