Invention Grant
- Patent Title: Flexbeam unit for a hingeless or a hinge and bearingless multi-blade rotor of a rotary wing aircraft
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Application No.: US14594601Application Date: 2015-01-12
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Publication No.: US09751623B2Publication Date: 2017-09-05
- Inventor: Rupert Pfaller
- Applicant: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
- Applicant Address: DE Donauworth
- Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
- Current Assignee: AIRBUS HELICOPTERS DEUTSCHLAND GMBH
- Current Assignee Address: DE Donauworth
- Agency: Brooks Kushman P.C.
- Priority: EP14400001 20140114
- Main IPC: B64C27/33
- IPC: B64C27/33

Abstract:
A flexbeam unit for a multi-blade rotor of a rotary wing aircraft, the flexbeam unit comprising a plurality of flexbeam elements that define a predetermined number of torsion elements and a ring-shaped connection zone for attachment to a rotor hub associated with a rotor shaft of the multi-blade rotor, each flexbeam element passing the ring-shaped connection zone in a tangential manner and uninterruptedly connecting a first torsion element to a second torsion element of the predetermined number of torsion elements, wherein each flexbeam element overlaps at least one in the circumferential direction of the ring-shaped connection zone immediately following flexbeam element and is overlapped by at least one in the circumferential direction of the ring-shaped connection zone immediately preceding flexbeam element.
Public/Granted literature
- US20150197333A1 FLEXBEAM UNIT FOR A HINGELESS OR A HINGE AND BEARINGLESS MULTI-BLADE ROTOR OF A ROTARY WING AIRCRAFT Public/Granted day:2015-07-16
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