Invention Grant
- Patent Title: Bearing housing with damping arrangement
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Application No.: US16356367Application Date: 2019-03-18
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Publication No.: US10767690B2Publication Date: 2020-09-08
- Inventor: Czeslaw Wojtyczka , Stephen Caulfeild
- Applicant: PRATT & WHITNEY CANADA CORP.
- Applicant Address: CA Longueuil
- Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee Address: CA Longueuil
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: F16C27/02
- IPC: F16C27/02 ; F01D25/16 ; F01D25/04

Abstract:
A bearing housing for connecting a bearing to a supporting structure of a gas turbine engine is discussed. The bearing housing has an inner wall and an outer wall radially spaced apart from the inner wall between which an annular space is defined. A device extends from the inner wall toward the outer wall and includes at least a first and a second member in series between the inner and outer walls, the second member having a radial stiffness greater than a radial stiffness of the first member. The device may operate in multiple operating stages, where in a first stage the first member of the device deforms to absorb at least partially a vibration load over a given range of vibration amplitude when the bearing housing deflects, and where in a subsequent second stage the second member of the device increases a total radial stiffness of the assembly of the bearing housing and device over the bearing housing alone.
Public/Granted literature
- US20200096041A1 BEARING HOUSING WITH DAMPING ARRANGEMENT Public/Granted day:2020-03-26
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