Invention Grant
- Patent Title: Laminated abutment, a rotor provided with such an abutment, and an aircraft
- Patent Title (中): 层压基台,设有这种基台的转子和飞机
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Application No.: US13719817Application Date: 2012-12-19
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Publication No.: US09382803B2Publication Date: 2016-07-05
- Inventor: Matthieu Ferrant , Mathieu Legrand
- Applicant: AIRBUS HELICOPTERS
- Applicant Address: FR Marignane
- Assignee: Airbus Helicopters
- Current Assignee: Airbus Helicopters
- Current Assignee Address: FR Marignane
- Agency: Brooks Kushman P.C.
- Priority: FR1104112 20111227
- Main IPC: B64C11/12
- IPC: B64C11/12 ; F01D5/14 ; F16F1/387

Abstract:
A laminated abutment (10) comprising an inner strength member (11), an outer strength member (12), and an elastomeric member (15) comprising a stack of main layers (20, 30) that are flexible and of secondary layers (40) that are rigid. The stack comprises at least one first main layer (20) and at least one second main layer (30), each first main layer (20) presenting, in a lead-lag plane (PTRA), a first thickness (e1) that varies between a minimum first thickness (e1min) on the pitch-variation axis (AXPAS) and a maximum first thickness (e1max) on the flapping axis (AXBAT), and each second main layer (30) presenting, in a lead-lag plane (PTRA), a second thickness (e2) that varies between a minimum second thickness (e2min) on the flapping axis (AXBAT) and a maximum second thickness (e2max) on the pitch-variation axis (AXPAS).
Public/Granted literature
- US20130164143A1 LAMINATED ABUTMENT, A ROTOR PROVIDED WITH SUCH AN ABUTMENT, AND AN AIRCRAFT Public/Granted day:2013-06-27
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