Invention Grant
US08708656B2 Blade fixing design for protecting against low speed rotation induced wear
有权
刀片固定设计，用于防止低速旋转引起的磨损
- Patent Title: Blade fixing design for protecting against low speed rotation induced wear
- Patent Title (中): 刀片固定设计，用于防止低速旋转引起的磨损
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Application No.: US12786902Application Date: 2010-05-25
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Publication No.: US08708656B2Publication Date: 2014-04-29
- Inventor: Barry Barnett , Philippe Bonniere
- Applicant: Barry Barnett , Philippe Bonniere
- Applicant Address: CA Longueuil, QC
- Assignee: Pratt & Whitney Canada Corp.
- Current Assignee: Pratt & Whitney Canada Corp.
- Current Assignee Address: CA Longueuil, QC
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: F01D5/30
- IPC: F01D5/30
Abstract:
The blade dovetails and associated dovetail slots of a gas turbine engine rotor assembly are shaped so that during windmilling the high stress regions of the blade dovetails are shielded from rubbing against the disk and vice versa. Bumper surfaces are provided in low stress regions of the dovetail assembly such that the windmilling contact points between the blade dovetails and the disk are in non-critical areas of the dovetail assembly.
Public/Granted literature
- US20110293429A1 BLADE FIXING DESIGN FOR PROTECTING AGAINST LOW SPEED ROTATION INDUCED WEAR Public/Granted day:2011-12-01
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