Invention Grant
- Patent Title: Knife edge with increased crack propagation life
-
Application No.: US14769951Application Date: 2014-02-12
-
Publication No.: US10167729B2Publication Date: 2019-01-01
- Inventor: Nicholas Aiello , Uyen Phan
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- International Application: PCT/US2014/015950 WO 20140212
- International Announcement: WO2014/149253 WO 20140925
- Main IPC: F01D11/00
- IPC: F01D11/00 ; F01D11/08 ; F01D11/12 ; F01D11/02 ; F01D5/20 ; F16J15/44
Abstract:
A knife edge seal includes a pedestal and a knife edge with a tip and a base. The base rests on the pedestal. The base has a first width and the tip has a second width, and the ratio of the first width to the second width is in the range of 5:1 to 15:1. A gas turbine engine and a method of sealing a high pressure area from a low pressure area are also disclosed.
Public/Granted literature
- US20160003076A1 KNIFE EDGE WITH INCREASED CRACK PROPAGATION LIFE Public/Granted day:2016-01-07
Information query
