公开(公告)号：US20240200659A1

公开(公告)日：2024-06-20

申请号：US18081978

申请日：2022-12-15

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Colin J. Kling ,  David R. Lyders

IPC: F16J15/3272 ,  F16J9/14 ,  F16J15/3284

CPC classification number: F16J15/3272 ,  F16J9/14 ,  F16J15/3284

Abstract: A gas turbine engine includes a rotor that has a sealing surface and a shaft that is rotatable about an engine central axis. The shaft has an annular seal channel that opens to the seal surface, and there is a split seal that is insertable into the annular seal channel for sealing against the seal surface. The split seal includes first and second end sections that are mateable to each other. The split seal has a helical shape when in a state of rest such that the first and second end sections are axially offset from each other.

公开(公告)号：US20240175370A1

公开(公告)日：2024-05-30

申请号：US17994188

申请日：2022-11-25

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Calvin Jay Winder ,  Fadi S. Maalouf ,  Matthew E. Bintz ,  Peter T. Schutte ,  Pieter Van Lieu ,  Justin Roger DeLarm ,  Anna Lauren Wright ,  Hamidreza Mohseni ,  David R. Lyders ,  Xiaomei Fang

IPC: F01D11/00 ,  C04B35/628 ,  C04B35/83 ,  F02C7/28

CPC classification number: F01D11/003 ,  C04B35/62873 ,  C04B35/83 ,  F02C7/28 ,  C04B2235/422 ,  C04B2235/5248 ,  C04B2235/5252 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2240/55

Abstract: A gas turbine engine includes a rotor that that has a seal surface, a shaft that has an annular seal channel that opens to the seal surface, and a seal disposed in the annular seal channel for sealing against the seal surface. The seal is made of a composite having carbon fibers disposed in a carbon matrix.