Invention Grant
- Patent Title: Labyrinth seal with tunable flow splitter
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Application No.: US15179400Application Date: 2016-06-10
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Publication No.: US10415735B2Publication Date: 2019-09-17
- Inventor: John Munson , Phillip H. Burnside
- Applicant: Rolls-Royce Corporation
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce Corporation
- Current Assignee: Rolls-Royce Corporation
- Current Assignee Address: US IN Indianapolis
- Agency: Fishman Stewart PLLC
- Main IPC: F16L41/02
- IPC: F16L41/02 ; F01D11/02 ; F01D11/04 ; F16J15/447

Abstract:
A flow splitter includes a stepped ring and a flow restriction. The stepped ring includes a first inner wall having a first diameter, a second inner wall having a second diameter less than the first diameter, a radial step that transitions from the first to the second inner wall, and a plurality of apertures circumferentially located along the first inner wall and partially through the radial step. The first flow restriction has at least a portion thereof at a position between the first diameter and the second diameter. Further, the first flow restriction directs a flow of at least one of a gas and a fluid towards the first inner wall, and is configured to split the flow into an exit flow and a secondary flow. The exit flow exits the stepped ring via the plurality of apertures and the secondary flow proceeds downstream directed by the second inner walls.
Public/Granted literature
- US20160369925A1 LABYRINTH SEAL WITH TUNABLE FLOW SPLITTER Public/Granted day:2016-12-22
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