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公开(公告)号：NO803955L
公开(公告)日：1980-12-30
申请号：NO803955
申请日：1980-12-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY
Abstract: In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft stowage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.
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公开(公告)号：NO803955A
公开(公告)日：1980-12-30
申请号：NO803955
申请日：1980-12-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY
CPC classification number: B64C27/50
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公开(公告)号：IT8021731D0
公开(公告)日：1980-05-02
申请号：IT2173180
申请日：1980-05-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY
Abstract: In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft stowage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.
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公开(公告)号：DE2800075A1
公开(公告)日：1978-07-13
申请号：DE2800075
申请日：1978-01-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY
Abstract: A helicopter rotor having opposed blades interconnected by a common flexible spar which passes across the rotor axis is connected to the drive shaft by clamped hub plates. A spanwise extending torque tube having a pitch horn at its inner end forms a rigid connection with the spar and blade at its outboard end. A centering bearing assembly is positioned at the inner end of the torque tube and spar to react control loads, centralize the torque tube about the spar, and provide pitch, flap, and lead-lag decoupling.
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