| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Retractable blade for a helicopter rotor | US653286 | 1976-01-29 | US4029435A | 1977-06-14 | Sidney L. Barker |
| A helicopter rotor having retractable blades each having a three dimensional truss including flexible cables which connect a blade member with a pitch member directly secured to a rotor hub, the cables providing for retraction of the blade member to a storage position and permitting the blade member to be adjustably extended to operative positions. With the rotor rotating normally, the resultant centrifugal force acting on the blade and more particularly the blade member, retains the cables under sufficient tension to form an operationally rigid truss which transmits the rotational force of the rotor to the blade member and also adjusts the pitch of the blade member responsive to operation of the pitch member. Two pairs of cables are provided, inner ends of each pair being spaced apart and retained by the pitch member, opposite ends of each pair being secured, one to each of opposite ends of a rigid rod transverse to the blade member and extending outwardly in opposite directions from the blade member. Thus, four triangular truss parts are provided, each truss part including a pair of cables and either the pitch member or the rod on the blade member, with the flexible member intersections connected either with an end of the rigid rod or retained by the pitch member. | ||||||
| 82 | Variable length blade | US42848073 | 1973-12-26 | US3884594A | 1975-05-20 | FRADENBURGH EVAN ALBERN |
| A variable length blade in telescopic form adapted to be used with similar blades to form a variable diameter rotor or propeller and wherein the outer blade portion is caused to telescope with respect to the inner blade portion by jackscrew action and wherein the inner blade portion has a secondary internal torque tube to prevent jackscrew actuation torque from reacting against the main torque tube of the inner blade portion.
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| 83 | Variable diameter propeller | US3128829D | US3128829A | 1964-04-14 | ||
| 84 | Aircraft propeller | US2635548 | 1948-05-11 | US2510216A | 1950-06-06 | FIGLEY KENNCTH W |
| 85 | Air propeller with automatically variable pitch and diameter and controlled pitch variation | US58717245 | 1945-04-07 | US2442291A | 1948-05-25 | ROGER HAMEL GEORGES |
| 86 | Variable diameter and variable pitch propeller | US38338941 | 1941-03-14 | US2404290A | 1946-07-16 | HOOVER WALTER S |
| 87 | Variable length propeller | US45243842 | 1942-07-27 | US2372350A | 1945-03-27 | HOWARD ABEEL GEORGE |
| 88 | Aircraft propeller | US13832637 | 1937-04-22 | US2205835A | 1940-06-25 | PORTER LANDRUM |
| 89 | Propeller | US11607536 | 1936-12-16 | US2145413A | 1939-01-31 | BELFIELD WILLIAM A |
| 90 | Flying-machine. | US1907397335 | 1907-10-14 | US1145388A | 1915-07-06 | ROCHON ACHILLE |
| 91 | Stirring device. | US1912686871 | 1912-03-28 | US1048025A | 1912-12-24 | ANTHONY CHARLES H |
| 92 | William henry drayton | US578509D | US578509A | 1897-03-09 | ||
| 93 | Wind-engine | US535602D | US535602A | 1895-03-12 | ||
| 94 | Water-wheel | US413976D | US413976A | 1889-10-29 | ||
| 95 | Improvement in churn-motors | US219308D | US219308A | 1879-09-02 | ||
| 96 | Improvement in automatic fans | US177310D | US177310A | 1876-05-09 | ||
| 97 | Disc rotor retraction system | EP12157385.1 | 2012-02-28 | EP2492192B1 | 2018-11-14 | Podgurski, Daniel Michael |
| A disc rotor blade retraction system includes a main blade spar (22) incorporating a hydraulic cylinder (54) and having a screw thread (34). A ball screw (24) is concentrically carried within the main blade spar and is operably connected to a ball nut (60) which has an outboard end connected to an intermediate spar (26) with a hydraulic piston (62) received for reciprocation in the hydraulic cylinder. A first geared actuator (20) engages the ball screw and a second geared actuator (30) engages the main blade spar screw thread. A hydraulic fluid accumulator (74) providing pressurized hydraulic fluid is connected to an outboard end of the hydraulic cylinder and a controller actuates the first and second geared actuators. | ||||||
| 98 | Disc rotor retraction system | EP12157385.1 | 2012-02-28 | EP2492192A3 | 2017-08-30 | Podgurski, Daniel Michael |
A disc rotor blade retraction system includes a main blade spar (22) incorporating a hydraulic cylinder (54) and having a screw thread (34). A ball screw (24) is concentrically carried within the main blade spar and is operably connected to a ball nut (60) which has an outboard end connected to an intermediate spar (26) with a hydraulic piston (62) received for reciprocation in the hydraulic cylinder. A first geared actuator (20) engages the ball screw and a second geared actuator (30) engages the main blade spar screw thread. A hydraulic fluid accumulator (74) providing pressurized hydraulic fluid is connected to an outboard end of the hydraulic cylinder and a controller actuates the first and second geared actuators.
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| 99 | Propeller arrangement | EP11154441.7 | 2011-02-15 | EP2368795B1 | 2017-04-05 | Lavrenko, Alexander |
| 100 | OPTIMIZATION OF DOWNSTREAM OPEN FAN PROPELLER POSITION | EP10782158.9 | 2010-11-18 | EP2516262A1 | 2012-10-31 | MOORE, Matthew D.; BOREN, Kelly L.; LANGTRY, Robin B. |
| A method and apparatus for controlling a propeller of a contra-rotation open fan (CROF) engine of an aircraft. A diameter of the propeller is set to be at a first diameter during at least a portion of a first flight condition of the aircraft. The diameter of the propeller is set to be at a second diameter, different from the first diameter, during at least a portion of a second flight condition of the aircraft. | ||||||
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