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WO/2000/047469A1 |
Control apparatus (4) for an airship comprising first and second rotor means (5,6) rotatable in opposite directions about a common axis (7), each rotor means including at least one blade means (5a; 6a) at an acute angle to the axis (7) o...
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WO1999067507A9 |
Turbine (14) is added to the spinner (12) of a propeller (10) to provide a contribution to propulsive thrust of the propeller (10). The turbine (14) comprises a group of turbine modules (14a) which are mounted on the periphery of the spi...
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WO/2000/037312A1 |
A drive system for a variable diameter rotor system that includes a plurality of rotor blade assemblies (14) with inner and outer blade segments (16, 18). The outer blade segment (18) being telescopically mounted to the inner blade segme...
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WO/2000/037311A1 |
A rotor blade actuation system (100) is disclosed for controlling extension and retraction of an outboard blade section (18) of a rotor blade (14) by varying the speed and direction of rotation between a main rotor shaft (22) and a blade...
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WO1997030813A9 |
The phase control mechanism includes first gears (3, 4) coupled to the output shafts which are to be phase controlled. A transfer gear (5) is provided for rotation or operation independent of the input and is coupled to the first gears (...
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WO1999061314A9 |
A brush block assembly (44), for providing stationary mounting of electrically conductive brushes (98) in contact registration with associated slip rings (40) of a rotating interface, comprises a main housing (46) adapted for mounting in...
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WO/2000/018641A1 |
The invention concerns a load-bearing structure such as a wing provided with serrated plates (16) on its free edges for breaking tip vortex generated in those places by distributing the fluid pressure. The vortex dissipation is accelerat...
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WO/2000/015949A1 |
In an apparatus having a structure such that the angle of a rotary blade (5) of a rotating body (6) can be changed while the blade (5) rotates, a screw (2) moving linearly according to rotation of a direction adjustment motor (1) is form...
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WO/2000/011322A1 |
The invention refers to a multipurpose propeller with vectored impulses which is composed of two stator plates (1, 1') positioned centered in relation to each other, one of the stator plates (1) constituting in fact the mirror image of t...
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WO/2000/001577A2 |
Hydraulic speed governor of the variable-pitch propeller consists of the mounting flange (1) and body (2) containing the gear pump (3) with the driving wheel (4) and driven wheel (5). Fitted through the center of the driving gear (4) is ...
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WO/1999/065766A1 |
A propulsion blade retraction and pitch control apparatus includes a hollow primary drive shaft (28), a pitch control gear assembly (38) mounted, within a propeller hub (16), to the primary drive shaft (28), a radially spaced array of pi...
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WO/1999/056912A1 |
A system (10) for controlling propeller blade pitch is disclosed. The system (10) comprises a transfer tube (18), wherein the transfer tube (18) defines an element of the rotatable portion (12) and wherein the transfer tube (18) is non-t...
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WO/1999/052770A1 |
The invention relates to a propeller where owing to the construction the airflow spilling round the blade tip is prevented. The propeller comprises a hub (12) and blades (14, 15, 16, 17) extending from the hub (12). The outer blade tips ...
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WO/1999/051493A1 |
A propeller propulsion unit comprising a prime mover, propellers, and a rotating force transmission means for transmitting the rotating force of the prime mover to the propellers, wherein a counter propeller (30) is fixed to a main shaft...
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WO1998029303B1 |
An aircraft has a fuselage substantially designed as an aerostatic lifting body and combined lifting and propelling devices joined to the fuselage, provided with propellers and forming driving units which can tilt between a lifting posit...
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WO/1999/020522A1 |
The hydraulic propeller system of the present invention has a central hub (14) including a stationary portion (28), and a rotatable portion (30). A plurality of propeller blades (12) are connected with the rotatable portion (30), wherein...
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WO/1999/017985A1 |
The invention relates to an adjustable propeller unit (20) for aircraft, land vehicles and watercraft which can be hydraulically reversed. Said adjustable propeller unit comprises a propeller with at least two blades, whose blade angle c...
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WO/1999/015398A1 |
A turbine (400) has a central duct (410) of non-cylindrical geometry which accelerates fluid passing through it, and a blade configuration which retards the flow of fluid near the tips of the turbine (400). A plurality of blades (408) ar...
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WO/1999/014112A1 |
An airfoiled blade (10) for improving the performance of a propeller is disclosed. The blade comprises a root portion, a tip portion, a leading edge (22) and a trailing edge. The blade has a cross section defined by a scaleable airfoil s...
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WO/1999/008928A1 |
A propeller blade retention assembly (10) of the present invention for use with a propeller having a hub (12) rotatable about a propeller axis, is disclosed. The assembly includes a blade receiver (14) for mounting the blade to the hub a...
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WO/1999/007981A1 |
The invention relates to a guide blade (6) pertaining to a gas turbine, comprising an outer leading blade edge (1) which is detachably connected to the body (7) of the guide blade (6), whereby the outer leading blade edge (1) is made fro...
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WO/1999/007601A1 |
Aeromobil is a dynamic flying machine heavier than air which produces necessary aerodynamic force for lift, thrust and control moments in aerodynamic generators. Flying characteristics of Aeromobil are those which make it possible for it...
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WO/1999/000298A1 |
The invention concerns a blade profile for aircraft rotor, comprising, between a leading edge (1A) and a trailing edge (1B), a suction face (2) and a blade face (3) whereof the geometric locus of the equidistant points of the latter defi...
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WO/1998/057848A1 |
A marine ducted impeller drive assembly (1) has a water inlet end (2) and a water outlet end (3) in an annulus between which are located two sets (15, 16) of impeller blades. The sets are rotated in respectively opposite directions by a ...
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WO/1998/033071A2 |
The invention relates to a fuselage Pitot-static tube comprising three groups of orifices for determining the total pressure (2), static pressure (3) and angle of attack (6, 7), and an axisymmetric body (1) and strut (5) for mounting an ...
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WO/1998/030446A2 |
A propeller (3) for aircraft has a tip-to-tip flexbeam spar (9) and torsionally stiff hollow blades (5) bonded to the spar throughout an outer portion of the blades. The spar has two end caps (33) which are separated from each other at t...
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WO/1998/025818A1 |
The invention concerns a wing or similar device. The sharpness of the leading edge of the wing, the smoothness of the surface of the wing, its overall profile and angle of attack are such that the speed of sound can be exceeded, without ...
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WO/1998/022340A1 |
A system (10) for controlling functions of a propeller having a plurality of blades (12) is disclosed. The system (10) comprises an electronic control (16) for controlling the functions of the propeller. A plurality of backup devices are...
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WO/1998/010984A1 |
An apparatus and method for reducing noise within the fuselage of a propeller driven aircraft (20). In one embodiment the propeller blades (38) are spaced apart and in front of an offset inlet (48). The inlet (48) provides air to a gas t...
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WO/1997/044239A1 |
A torque tube/spar assembly (100) is provided for transferring the operational loads of a Variable Diameter Rotor blade assembly (16) to a rotor hub assembly (18). The torque tube/spar assembly (100) includes a torque tube member (24), a...
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WO/1997/041030A1 |
The present invention provides an apparatus for minimizing the blade opening between the blade shank of propeller (14) and spinner (16) in order to improve the overall efficiency of an aircraft and propeller system. The present invention...
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WO/1997/038897A1 |
A blade for ship propellers is provided in the area of its outer radius with means for reducing the induced turbulence. The means for reducing the induced turbulence consist of several ribs spaced apart and arranged next to each other in...
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WO/1997/037891A1 |
The present invention relates to a power unit for transportation which is fitted with an energetic module (3) in the form of one or more rotor units (6). Each unit (6) includes a shaft (7) onto which a rotating frame (8) is mounted, whil...
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WO/1997/025244A1 |
A hydraulically reversible adjustable-pitch propeller unit for air, land and/or water vehicles or craft, with a propeller with at least two blades, the pitch of which can be varied by means of a control unit (regulator), in which there i...
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WO/1997/021588A1 |
A rotor system (4) having odd and even blade assemblies (Ob, Eb) mounting to and rotating with a rotor hub assembly (6) wherein the odd blade assemblies (Ob) define a radial length RO, and the even blade assemblies (Eb) define a radial l...
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WO/1997/017253A1 |
The invention relates to aviation technology, specifically variable pitch air propellers. A particular feature of the propeller lies in the fact that it has concentric springs and torque transmissions which co-operate with the oil feed p...
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WO/1997/017256A1 |
The invention relates to aviation engineering. The technical result of using the invention is rapid alteration in the pull of the propeller by accelerated alteration in the angle of alignment of the blades, and greater operational reliab...
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WO/1997/017254A1 |
The invention relates to aviation technology, specifically hydromechanical systems with a single control channel for a feather-reversible propeller for local airline aircraft. The propeller control system contains a hydraulic mechanism l...
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WO/1997/017255A1 |
The invention relates to aviation technology. The technical result is high speed of rearrangement of the fan blades in reverse mode via a feathering, transition by the blades with optimal reverse angles and their return to pre-set angles...
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WO/1997/017252A1 |
The invention relates to aviation engineering. The technical result of using it is increased accuracy in the measurement of current blade angles and improved operational reliability of the system, achieved by the incorporation of means o...
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WO/1997/015489A1 |
A propeller (10) including: a hub (11) with a central axis of rotation (12); and three propeller blades (13) supported on said hub, the blades being mounted for pivotal movement about axes (14) extending substantially normal to the axis ...
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WO/1997/006057A1 |
A bearing arrangement is provided in which bearings (60) are held captive between opposing bearing surfaces of races (24, 62). A closeable delivery hole (64) provides a route through which bearings can be inserted into or removed from th...
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WO/1997/006056A1 |
A bearing arrangement, for example, for a variable pitch propeller, has a fluid operated actuator (42, 34, 40) for causing relative movement between bearing surfaces of races (12, 32) so as to preload bearings (30) held therebetween. Mec...
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WO/1996/031390A1 |
A variable pitch mechanism for a propeller, including an electric motor (328) which axially drives an actuator (310), is provided which has a simplified design in which, during normal operation, all component parts rotate substantially a...
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WO/1996/009954A1 |
A marine propulsion unit has two contra-rotating propellers (15, 16) driven by a single shaft (25) through gearing which includes a set of static planetary gears (40), an external gear (30), and an internal gear (44). The gearing is moun...
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WO/1996/007588A1 |
A rotary apparatus is provided in which at least one electrically controlled device (3) is attached to a rotor (1). The rotor (1) carries coils such that rotation of the rotor generates power for the device (3). A switch (4) is provided ...
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WO/1996/005097A1 |
A three-dimensional object is disclosed which is formed from a plurality of sheets of a flexible substantially inelastic material. A portion of the perimeter of each sheet is joined to a portion of the perimeter of at least one other of ...
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WO/1996/002776A1 |
The sealing ring seals between relatively rotating and vibrating machine parts such as parts of an aircraft propeller, and has several sealing lands (3, 5). The shape and configuration of the lands are selected so that natural vibration ...
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WO/1995/035235A1 |
An aircraft rotor arrangement comprising a blade set (1) having a number of rotor blades (2) in substantially coaxial location with at least the same number of cross-over members, for example a set of contra-rotatable blades (5). The rot...
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WO/1995/026904A1 |
The present method involves diversion of the vector of the resultant aerodynamic force produced from the direction of the propeller's axis of rotation. The method is characterised by the fact that as the propeller blades rotate through t...
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