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公开(公告)号：NO792116A
公开(公告)日：1979-12-28
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , HIBYAN EDWARD STANLEY , FAIZ ROBERT LEE
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公开(公告)号：NO145830C
公开(公告)日：1982-06-09
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , 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：AU8978891A
公开(公告)日：1992-06-18
申请号：AU8978891
申请日：1991-12-16
Applicant: UNITED TECHNOLOGIES CORP
Abstract: The blade-to-hub connection (18) of the articulated helicopter rotor consists of a spherical elastomeric bearing (26) connected to the hub (12) and a composite yoke (32) connected thereto in series and consisting of a plurality of unidirectional high strength fibers bonded together to form a continuous strap which passes through a central opening (36) in the elastomeric bearing (26) and is pin-wrap connected to the hub (12) at a single station and to the blade (16) at two spaced stations so is to produce a construction which is light in weight, easy to manufacture, ballistically tolerant, redundant, and readily visually inspectable for structural integrity.
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公开(公告)号：AU496861B2
公开(公告)日：1978-11-02
申请号：AU1404376
申请日：1976-05-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NOEHREN WILLIAM LAWRENCE , HIBYAN EDWARD STANLEY
Abstract: A cross-beam helicopter rotor wherein the pitch actuator shaft passes through an elliptically shaped hole in the unidirectional, composite helicopter spar, each of selected dimension so that the stress concentration factor across the spar at the hole is minimized when the spar is carrying balanced centrifugal blade loads. The shaft also passes through a centering pin which is supported in the spar hole by an elliptically shaped plug of selected dimension so that when supported from the spar hole by elastomer of selected shape factor, durometer and dimension, the plug and pin are load isolated from the spar and the stress concentration factor across the spar at the hole is substantially unchanged from that of the unplugged hole both during balanced and unbalanced centrifugal blade load operation of the spar, and so that the elastomer transmits unbalanced centrifugal blade loads therethrough from the spar to the plug and pin for centering the rotor.
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公开(公告)号：AU1404376A
公开(公告)日：1977-11-24
申请号：AU1404376
申请日：1976-05-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NOEHREN WILLIAM LAWRENCE , HIBYAN EDWARD STANLEY
Abstract: A cross-beam helicopter rotor wherein the pitch actuator shaft passes through an elliptically shaped hole in the unidirectional, composite helicopter spar, each of selected dimension so that the stress concentration factor across the spar at the hole is minimized when the spar is carrying balanced centrifugal blade loads. The shaft also passes through a centering pin which is supported in the spar hole by an elliptically shaped plug of selected dimension so that when supported from the spar hole by elastomer of selected shape factor, durometer and dimension, the plug and pin are load isolated from the spar and the stress concentration factor across the spar at the hole is substantially unchanged from that of the unplugged hole both during balanced and unbalanced centrifugal blade load operation of the spar, and so that the elastomer transmits unbalanced centrifugal blade loads therethrough from the spar to the plug and pin for centering the rotor.
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Patent Agency Ranking
公开(公告)号：NO145830B
公开(公告)日：1982-03-01
申请号：NO792116
申请日：1979-06-25
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , 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：DE2621914A1
公开(公告)日：1977-01-20
申请号：DE2621914
申请日：1976-05-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NOEHREN WILLIAM LAWRENCE , HIBYAN EDWARD STANLEY
Abstract: A cross-beam helicopter rotor wherein the pitch actuator shaft passes through an elliptically shaped hole in the unidirectional, composite helicopter spar, each of selected dimension so that the stress concentration factor across the spar at the hole is minimized when the spar is carrying balanced centrifugal blade loads. The shaft also passes through a centering pin which is supported in the spar hole by an elliptically shaped plug of selected dimension so that when supported from the spar hole by elastomer of selected shape factor, durometer and dimension, the plug and pin are load isolated from the spar and the stress concentration factor across the spar at the hole is substantially unchanged from that of the unplugged hole both during balanced and unbalanced centrifugal blade load operation of the spar, and so that the elastomer transmits unbalanced centrifugal blade loads therethrough from the spar to the plug and pin for centering the rotor.
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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：DE2924450A1
公开(公告)日：1980-01-10
申请号：DE2924450
申请日：1979-06-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor： FERRIS DONALD LEROY , 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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