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US 10,202,863 B2Granted
Seal ring for gas turbine engines
AssigneeUnited Technologies Corporation
InventorsTimothy M. Davis, Mark F. Zelesky, Michael G. McCaffrey
Life of this patent
Estimating the term…
Abstract
An annular ring for sealing a flow includes an inner ring and a tab. The tab extends radially and is configured to restrict axial movement of the seal.
Claims15
A seal assembly comprising:
- a first component having a first shelf;
- a second component adjacent to the first component forming a cavity between the first and second components, the second component comprising:
- a second shelf together with the first shelf forming a restricted flow channel;
- a first seal spanning the cavity;
- a second seal located entirely radially inward of the first seal, and sealing the restricted flow channel, the second seal comprising:
- a first tab that extends radially to restrict axial movement of the second seal;
- and
- a slot in the first shelf adjacent to the restricted flow channel, wherein the slot receives the first tab.
5 more elements
A method of forming a seal, the method comprising:
- sealing a cavity formed between a first component and a second component using a first seal, wherein the first seal spans the cavity and seals against a radial surface of the first component and a radial surface of the second component;
- forming a restricted flow channel with a first shelf of the first component and a second shelf of the second component;
- sealing the restricted flow channel with a second seal by positioning the second seal to rest on radially outer axial surfaces of the first and second shelves wherein the second seal is located entirely radially inward of the first seal;
- and
- restricting axial movement of the second seal with a first tab that extends radially into the restricted flow channel and is received in a slot in the first shelf adjacent to the restricted flow channel.
2 more elements
A seal assembly comprising:
- a first component having a first shelf;
- a second component adjacent to the first component forming a cavity between the first and second components, the second component comprising:
- a second shelf together with the first shelf forming a restricted flow channel;
- a first seal spanning the cavity;
- and
- a second seal located entirely radially inward of the first seal, and sealing the restricted flow channel, the second seal comprising:
- a first tab that extends radially to restrict axial movement of the second seal;
- and
- a second tab;
- a first slot in the first shelf adjacent to the restricted flow channel that receives the first tab;
- and
- a second slot in the second shelf adjacent to the restricted flow channel that receives the second tab.
9 more elements
A seal assembly comprising:
- a first component having a first shelf;
- a second component adjacent to the first component forming a cavity between the first and second components, the second component comprising:
- a second shelf together with the first shelf forming a restricted flow channel;
- a first seal spanning the cavity;
- a second seal located entirely radially inward of the first seal, and sealing the restricted flow channel, the second seal comprising:
- a first tab that extends radially outward to engage the first seal and to restrict axial movement of the second seal;
- and
- a second tab extending radially outward to engage the first seal;
- and
- wherein the first tab and the second tab restrict axial movement of the second seal relative to the first seal.
7 more elements
Dependencies are inferred from the claim text.