[특허]Soft inplane bearingless helicopter rotor

[미국특허] Soft inplane bearingless helicopter rotor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-027/38
출원번호	US-0373525 (1982-06-24)
발명자 / 주소	Metzger Robert W. (Hurst TX) Neathery William D. (Fort Worth TX) Reyes Peter A. (Watauga TX) Tisdale Patrick R. (Bedford TX) Covington Cecil E. (Hurst TX) Broekhuizen Willem (Arlington TX)
출원인 / 주소	Bell Helicopter Textron Inc. (Forth Worth TX 02)
인용정보	피인용 횟수 : 40 인용 특허 : 16

초록

This invention relates to helicopter rotors and more particularly to rotor mounting involving a composite fiber-reinforced unitary yoke with resilient inplane restraints.

대표청구항 ▼

A soft inplane bearingless rotor to be rigidly mounted on a helicopter mast comprising: (a) a unitary yoke having a flat hub section adapted to be anchored to the end of said mast and having diametrically opposed blade-supporting arms extending from said hub section, each arm having a thin flapping section adjacent said hub section and a feathering section extending from said flapping section with blade attachments at the end of each of said arms, said arms including a plurality of fiber reinforced composite parallel ribs extending span-wise with predetermined inplane spacing; (b) a blade secured to each attachment with a cuff extending inboard to said flapping section; and (c) bearing structure interconnecting the inboard end of said cuff and said flapping section and including inplane resilient structure for soft inplane restraint of said blade.

이 특허에 인용된 특허 (16) 인용/피인용 타임라인 분석

Brogdon Vas H. (Hurst TX) Covington Cecil E. (Hurst TX) Wheelis Richard E. (Hurst TX), Bearingless tail rotor for helicopters.
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Reyes Peter A. (Watauga TX), Composite flexural yoke for helicopters.
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Noehren William Lawrence (Huntington CT) Hibyan Edward Stanley (Trumbull CT), Composite helicopter spar and means to alleviate stress concentration.
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Noehren William L. (Huntington CT) Ferris Donald L. (Newtown CT) Ogle Peter C. (Woodbridge CT), Cross-beam helicopter rotor with readily replaceable snubber.
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Covington Cecil E. (Hurst TX) Snyder David E. (Arlington TX), Helicopter blade folding system.
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Sobey ; Arnold John, Helicopter rotor blades.
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Head, Robert E.; Banerjee, Debashis, Helicopter tail rotor of the elastomerically-mounted composite flexbeam type.
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Brogdon Vas H. (Hurst TX) Williams David L. (Smithfield TX), Laminated composite rotor yoke.
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Mouille Rene L. (Aix-en-Provence FRX) Lafargue Marcel A. S. (Marignane FRX), Main rotor for a helicopter.
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Cheney ; Jr. Marvin C. (Glastonbury CT), Matched stiffness rotor flexbeam and blade system.
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Mouille Rene Louis (Aix en Provence FR) Coffy Rene Louis (Marseille FR) Hancart Michel Aime (Marignane FR) Mao Daniel (Marseille FR), Rotor for rotating wing type aircraft.
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Mouille Rene Louis (Aix-en-Provence Marseille FR) Coffy Rene Louis (Marseille FR) Hancart Michel Aime (Marignane FR) Mao Daniel (Marseille FR), Rotor for rotating wing type aircraft.
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Covington Cecil E. (Hurst TX) Snyder David E. (Arlington TX) Sonneborn Walter G. (Fort Worth TX) Cresap Wesley L. (Fort Worth TX), Soft inplane helicopter rotor.
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Aubry Jacques A. (Cabries FRX), Supple mounting arrangement for helicopter rotor with through strip.
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Mouille Rene Louis (Aix-en-Provence FR), Tail-rotor arrangement for rotor crafts.
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Ferris Donald Leroy (Newtown CT) Noehren William Lawrence (Huntington CT), Torque reacting means for the hubs of cross beam rotors.
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이 특허를 인용한 특허 (40) 인용/피인용 타임라인 분석

Kuntze-Fechner, Gerald; Bauer, Markus; Ortner, Martin, Aerodynamic blade attachment for a bearingless rotor of a helicopter.
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Miller Gordon G. (Shelton CT), Aerodynamic flexible fairing.
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Stamps, Frank B.; Tisdale, Patrick R.; Braswell, James L.; Baskin, Jr., Charles L.; Campbell, Tom; Ledbetter, Timothy K.; Zierer, Joseph J.; Reddy, D. J.; Wiinikka, Mark A.; Martin, Ronnie L.; Haynie, David A.; Sadler, Stanley Gene; Measom, Ron; Oldroyd, Paul; Hiros, Tricia; Harse, Jim; Mullins, Bob, Assembly for providing flexure to blade system.
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Stamps, Frank B.; Tisdale, Patrick R.; Sherrill, Paul; Rauber, Richard; Campbell, Thomas C.; Braswell, Jr., James Lee; Measom, Ron; Hiros, Tricia; Popelka, David; Southerland, Michael J.; Stanney, Keith; Wasikowski, Mark; Ledbetter, Tim, Assembly for providing flexure to blade system.
상세보기
Niwa Yoshiyuki (Tachikawa JPX) Kashiwagi Masahiro (Tachikawa JPX) Yasue Masahiro (Funabashi JPX) Bandoh Shunichi (Kakamigahara JPX) Kakinuma Asao (Kakamigahara JPX) Wakatsuki Tadashi (Gifu JPX), Bearingless hub structure for rotary-wing aircrafts.
상세보기
Kuntze-Fechner, Gerald; Bauer, Markus; Ortner, Martin, Blade attachment for a bearingless rotor of a helicopter.
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Sims, John L.; Tisdale, Patrick R.; Powell, Ernie A., Composite flapping flexure.
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Hibyan Edward S. (Trumbull CT) Wehnert George J. (Madison CT) Toner Thomas J. (Milford CT) Byrnes ; Jr. Francis E. (White Plains NY) Ogle Peter C. (Woodbridge CT), Composite helicopter rotor hub.
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Maresh, Andrew; Stamps, Frank Bradley; Tisdale, Patrick Ryan; Wardlaw, Robert Patrick; Haldeman, Andrew; Sutton, Drew Alan, Composite rotor system using two race track style cantilevered yokes.
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Maresh, Andrew; Stamps, Frank Bradley; Tisdale, Patrick Ryan; Wardlaw, Robert; Haldeman, Andrew; Sutton, Drew, Composite rotor system using two race track style cantilevered yokes.
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Kuntze-Fechner, Gerald; Bauer, Markus; Ortner, Martin, Connection joint for attaching an airfoil blade to a helicopter's bearingless main rotor.
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Hamilton Brian K. ; Guymon Stephen L. ; Hines Murray J. ; Vu Thu N., Contoured flexure strap for helicopter rotor system.
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Meyer, Leon M.; Lay, Richard C.; Schmaling, David N., Elastomeric bearing system motion limiter.
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Beno Edward A. (Stratford CT) Noehren William L. (Trumbull CT), External wrap of composite flexbeam.
상세보기
Wehnert George J. (Madison CT) Byrnes ; Jr. Francis E. (White Plains NY) Ogle Peter C. (Woodbridge CT), Fiber reinforced/epoxy matrix composite helicopter rotor main hub plate.
상세보기
Hibyan Edward S. (Trumbull CT) Wehnert George J. (Madison CT) Toner Thomas J. (Milford CT) Byrnes ; Jr. Francis E. (White Plains NY) Ogle Peter C. (Woodbridge CT), Fiber reinforced/epoxy matrix composite helicopter rotor torque tube.
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Hibyan Edward S. (Trumbull CT) Toner Thomas J. (Milford CT) Ogle Peter C. (Woodbridge CT), Fiber reinforced/epoxy matrix composite helicopter rotor yoke.
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Yao Samuel S. (Fountain Valley CA) Hughes Charles W. (Thousand Oaks CA), Flat strap cruciform flexure for helicopter rotor systems.
상세보기
Matsumoto Tadahiro (Tokyo JPX) Nishikawa Kiyoshi (Tokyo JPX), Flexbeam for rotor blades of helicopter and method for fabrication thereof.
상세보기
Hunter, David H.; Casey, Ryan Thomas; Byrnes, Francis Edward, Flexbeam rotor.
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Sutton, Drew; Stamps, Frank B.; Tisdale, Patrick Ryan; Oldroyd, Paul, Flexing clevis arrangement bolted joint attachment for flexible rotor hub with high offset and high flapping.
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Haynie, David Allen; Braswell, James Lee; Schellhase, Ernst C.; Zierer, Joseph J., Main rotor shear restraint.
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Hunter David H. ; Tritsch Douglas E., Monolithic structure having improved flaw tolerance.
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Yen Jing G. (Arlington TX) Popelka David A. (Bedford TX), Nodalized rotor.
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Kuntze-Fechner, Gerald; Ortner, Martin, Partly cruciform flexbeam and method of manufacturing such a flexbeam.
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Schellhase Ernst C. ; Broekhuizen Willem, Prop rotor hub.
상세보기
Halcom, Lance, Proximity sensor valve and lock system using same.
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Bauer Karl,DEX ; Kuntze-Fechner Gerald,DEX ; Hausmann Gerhard,DEX ; Enenkl Bernhard,DEX, Rotor blade for a bearingless rotor of a helicopter.
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Hahn Michael (Ottobrunn DEX) Friedberger Otmar (Neubiberg DEX) Singer Gerhard (Munich DEX), Rotor blade, especially for a rotary wing aircraft.
상세보기
Vertel, John F.; Narayanan Nampy, Sreenivas; Smelcer, Matthew J., Rotor head for a vertical takeoff and landing aircraft.
상세보기
Hahn Michael (Ottobrunn DEX) Kuntze-Fechner Gerald (Bad Wiessee DEX), Rotor structure, especially for a rotary wing aircraft.
상세보기
Wagner Alois (Emmerkofen DEX) Friedberger Otmar (Neubiberg DEX), Rotor, in particular a helicopter rotor.
상세보기
Muylaert, Neal W.; Lamborn, Lyndon C., Sculptured throat spool.
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Kuntze-Fechner, Gerald; Bauer, Markus, Separable blade attachment for a bearingless rotor of a helicopter.
상세보기
Stamps, Frank B.; Tisdale, Patrick R.; Donovan, Tom; Rauber, Richard E., Stiff-in-plane rotor configuration.
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Stamps, Frank B.; Tisdale, Patrick R.; Donovan, Tom; Rauber, Richard E., Stiff-in-plane rotor configuration.
상세보기
Sato Tetsuro (Tokyo JPX), System for damping lead-lag motion of rotor blades of helicopter.
상세보기
Anderson, Benjamin W.; Peterson, Eric, Trailing edge blade clamp.
상세보기
Bauer Karl,DEX ; Kuntze-Fechner Gerald,DEX, Two-piece rotor blade for a bearingless rotor of a helicopter.
상세보기
Stamps, Frank B.; Rauber, Richard E.; Campbell, Thomas C.; Donovan, Tom; Tisdale, Patrick R.; Braswell, Jr., James Lee, Yoke with notched arm roots.
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[미국특허] Soft inplane bearingless helicopter rotor 원문보기