Helicopter with horizontal control
First Claim
1. A helicopter comprising a body;
- a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a control for moving the angle of incidence of at least one blade of the rotor relative to the angle of incidence of another blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in lift force of the blade along at least part of the rotation path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
A helicopter includes a system to effect motion in a horizontal dimension thereby to direct the desired direction. The rotor blades are driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary. A control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360-degree rotation path around the rotor shaft. This causes a variation in a lift force of the blade along at least part of the rotations path. This causes the body to be urged in a relatively horizontal direction from a relative position of rest. The control includes an actuator for engaging with an assembly depending from the rotor, the inter-engagement of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor. The system includes a rotor, preferably complemented with a stabilizer rotor. There is a control ring attached to the main rotor, and an actuator device connected with the helicopter body structure. The control ring is generally centered around the vertical rotor axis, and moves with the rotor when tilted around the feather axis.
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Citations
35 Claims
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1. A helicopter comprising a body;
- a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a control for moving the angle of incidence of at least one blade of the rotor relative to the angle of incidence of another blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in lift force of the blade along at least part of the rotation path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 30, 31, 32)
- a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
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12. A helicopter comprising a body with a tail;
- a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a tail rotor which is driven by a second rotor shaft directed transversally to the rotor shaft of the main rotor, an auxiliary rotor driven by the rotor shaft of the main rotor in the sense of rotation of the main rotor is an acute angle relative to a longitudinal axis of at least one of the rotor blades of the main rotor, the auxiliary rotor being mounted in a swinging relationship on an oscillatory shaft which is provided essentially transversally to the rotor shaft of the main rotor, and the main rotor and the auxiliary rotor are connected to each other by a mechanical link, such that the swinging motion of the auxiliary rotor controls the angle of incidence of at least one of the rotor blades of the main rotor, and a control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360 degree rotation path around a rotor shaft, causing a variation in lift force of the blade along the rotations path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of horizontal rest, the relative position of horizontal rest being a relatively hovering position above a ground level; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
- a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
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21. A helicopter comprising a body with a tail;
- a main rotor with rotor blades which is driven by a rotor shaft on which the blades are mounted;
a tail rotor which is driven by a second rotor shaft directed transversally to the rotor shaft of the main rotor, an auxiliary rotor driven by the rotor shaft of the main rotor in the sense of rotation of the main rotor, the auxiliary rotor being mounted in a swinging relationship on an oscillatory shaft and the swinging motion being relatively upwardly and downwardly about the auxiliary shaft, and which auxiliary shaft is provided essentially transverse to the rotor shaft of the main rotor, the main rotor and the auxiliary rotor being connected to each other by a mechanical link, such that the swinging motion of the auxiliary rotor controls the angle of incidence of at least one of the rotor blades of the main rotor and a control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in a lift force of the blade along at least part of the rotations path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft. - View Dependent Claims (22, 23, 24, 25, 26)
- a main rotor with rotor blades which is driven by a rotor shaft on which the blades are mounted;
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27. A helicopter comprising a body with a tail;
- a rotor with rotor blades which is driven by a rotor shaft and which is mounted on this rotor shaft, such that the angle of incidence of the rotor in the plane of rotation of the rotor and the rotor shaft may vary; and
an auxiliary rotor rotatable with the rotor shaft and being for relative oscillating movement about the rotor shaft and being such that different relative position so that the auxiliary rotor causes the angle of incidence the main rotor to be different and a control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in a lift force of the blade along at least part of the rotations path; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft. - View Dependent Claims (28)
- a rotor with rotor blades which is driven by a rotor shaft and which is mounted on this rotor shaft, such that the angle of incidence of the rotor in the plane of rotation of the rotor and the rotor shaft may vary; and
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29. A helicopter comprising a body with a tail;
- a main rotor with rotor blades which is driven by a rotor shaft and which is mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
a tail rotor which is driven by a second rotor shaft, an auxiliary rotor driven by the rotor shaft of the main rotor, and the main rotor and the auxiliary rotor being connected to each other by a mechanical link, such that the motion of the auxiliary rotor controls the angle of incidence of at least one of the rotor blades of the main rotor, and a stabilizer at the tail, the stabilizer being directed downwardly and a control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in a lift force of the blade along at least part of the rotations path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft.
- a main rotor with rotor blades which is driven by a rotor shaft and which is mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary;
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33. A remote control toy helicopter comprising a body having a front end and a rear end;
- a motor and a battery for the motor, the motor being controllable by a controller remote from the helicopter body;
a main rotor with propeller blades which is driven by a rotor shaft on which the blades are mounted;
a second rotor which is driven by a second rotor shaft, an auxiliary rotor driven by the rotor shaft of the main rotor for rotation in the sense of rotation of the main rotor, and wherein each propeller blade has a profile wherein along the direction of its generally longitudinal axis of each blade includes a first upwardly longitudinal convex curve from a position towards the rotor shaft to a position towards an end area of the blade, wherein the auxiliary rotor is mounted in a swinging relationship on an oscillatory shaft and the swinging motion being relatively upwardly and downwardly about the oscillatory shaft, and which oscillatory shaft is provided essentially transverse to the rotor shaft of the main rotor, such that the swinging motion of the auxiliary rotor controls the angle of incidence of at least one of the propeller blades of the main rotor, wherein each rotor blade includes a second transverse convex curve in a profile on its top face from a position towards a leading edge towards a position towards a trailing edge, the second transverse convex curve preferably being present over a substantial generally longitudinal length of the blade; and
a control for moving the angle of incidence of at least one blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in a lift force of the blade along at least part of the rotations path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest; and
wherein the control includes an actuator for selectively contacting an assembly depending from the rotor, the contact of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor, the actuator being selectively movable into and out of contact with the assembly, such that, in a first operative condition of the rotating rotor, there is contact between the actuator and assembly along part of the 360 degree rotation path around the rotor shaft, and in a second operative condition of the rotating rotor, there is no contact between the actuator and assembly along the 360 degree rotation path around the rotor shaft. - View Dependent Claims (34, 35)
- a motor and a battery for the motor, the motor being controllable by a controller remote from the helicopter body;
Specification