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公开(公告)号：GB2178388A
公开(公告)日：1987-02-11
申请号：GB8616023
申请日：1986-07-01
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD L , MATSUKA DAVID G
Abstract: Apparatus for damping blade lead/lag motion on a hingeless helicopter rotor assembly, including a hub, blades and flexbeam(s) interposed between the root end of the blades and the hub. Rigid, radial links extend the length of the flexbeams for attachment to the outboard ends thereof. Lead/lag motion at the outboard end of the flexbeam causes flexbeam bending, which is converted to radial translation of the links. This radial translation of the links and likewise the blade lead/lag motion is damped by damper means connected between the inboard ends of the links and the hub.
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Patent Agency Ranking
公开(公告)号：FR2569387A1
公开(公告)日：1986-02-28
申请号：FR8512453
申请日：1985-08-16
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD L , MARCHITTO MICHAEL J
IPC: B64C27/72 , B64C27/58 , B64C27/605 , F16C11/04
Abstract: Centering and stabilizing against rotation of a helicopter swashplate stationary ring are provided by spokes that are attached between the airframe and the stationary ring. When the swashplate tilts for cyclic control, the spokes bend and twist. When the swashplate translates for collective control, the spokes are required to lengthen and skew with respect to the swashplate. An elastomeric bearing having a cylindrical component to allow for skew and a shear pad to allow for lengthening attaches each spoke to the swashplate. The invention eliminates the need for the ball joint, standpipe and scissors associated with traditional swashplate centering techniques.
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公开(公告)号：GB2163395A
公开(公告)日：1986-02-26
申请号：GB8520686
申请日：1985-08-19
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD L , MARCHITTO MICHAEL J
IPC: B64C27/72 , B64C27/58 , B64C27/605
Abstract: Centering and stabilizing against rotation of a helicopter swashplate stationary ring are provided by spokes that are attached between the airframe and the stationary ring. When the swashplate tilts for cyclic control, the spokes bend and twist. When the swashplate translates for collective control, the spokes are required to lengthen and skew with respect to the swashplate. An elastomeric bearing having a cylindrical component to allow for skew and a shear pad to allow for lengthening attaches each spoke to the swashplate. The invention eliminates the need for the ball joint, standpipe and scissors associated with traditional swashplate centering techniques.
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公开(公告)号：FR2566489A1
公开(公告)日：1985-12-27
申请号：FR8509232
申请日：1985-06-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BYRNES FRANCIS E , HIBYAN EDWARD S , OGLE PETER C , FERRIS DONALD L , NOEHREN WILLIAM L , OLSEN ERIC G
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公开(公告)号：AU521365B2
公开(公告)日：1982-04-01
申请号：AU4779079
申请日：1979-06-06
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD L , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
Abstract: A helicopter rotor having one or more blades mounted for rotation with the rotor hub and each supported therefrom by an elastomeric bearing, and having a lead-lag damper connected to the blade and the hub and extending substantially parallel to the blade axis, and including the improvement of apparatus for preventing tension loading of the elastomeric bearing as the blade moves radially inwardly as a result of rotor braking.
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公开(公告)号：AU4779079A
公开(公告)日：1980-01-03
申请号：AU4779079
申请日：1979-06-06
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD L , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
Abstract: A helicopter rotor having one or more blades mounted for rotation with the rotor hub and each supported therefrom by an elastomeric bearing, and having a lead-lag damper connected to the blade and the hub and extending substantially parallel to the blade axis, and including the improvement of apparatus for preventing tension loading of the elastomeric bearing as the blade moves radially inwardly as a result of rotor braking.
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