A fluidic rotor that includes a rotary structure mounted on a base and supporting a set of directionally adjustable blades capable of oscillating relative to the rotation of the rotary structure about a rotor axis, and transmission devices between a central of the rotor and each of the blades, capable of individually controlling the oscillations of the blades, each device including two pivoting elements having offset pivot axes, one of the elements having a slot and the other having a pin that engages the slot. The two pivoting elements are intermediate elements of a transmission having a set of elements engaged with each other between the central shaft and the blades.
The invention relates to a fluid rotor comprising a rotating rotor structure mounted on a base (1) and supporting directable blades which are capable of oscillating relative to the rotation of the rotating structure, and an assembly for transmission between a central shaft (6) of the rotor and each of the blades, which assembly is able to control the variations in inclination of the blades during the rotation of the rotor, the transmission assembly comprising a mobile control board (10) that supports a set of transmission members for the respective blades, the angular position of said board determining a maximum angle of inclination of the blades during the rotation of the rotor, the rotor further comprising a control device comprising a drive shaft (2) which is secured to a blade support that receives the transmission assembly and which is able to be controlled by a main motor in order to rotate the rotor, and an adjustment shaft (5) for controlling the angular position of the control board, the control device further comprising a reducer/differential transmission (300) supported by the base, it being possible to control the angular position of said reducer/differential transmission in order to vary, over the course of the rotation of the rotor, the relative angular position of the drive shaft (2) and of the adjustment shaft (5) and to thereby vary, over the course of the rotation, the maximum angular inclination of the blades.
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
3.
IMPROVEMENTS TO FLUID ROTORS WITH ADJUSTABLE VANES
What is proposed is a rotor with adjustable vanes, comprising a rotary structure rotating about a main axis and comprising a set of vanes rotating about a series of vane axes parallel to the main axis and defined by said rotary structure, and a mechanism associated with each vane and configured to control the variations in inclination of the associated vane according to the angular position of the rotary structure, this mechanism comprising a first element (65) supporting a pin (64) and a second element which is eccentric with respect to the first and configured to channel the movements of the pin along an imposed path.
What is proposed is a rotor with adjustable vanes, comprising a rotary structure rotating about a main axis and comprising a set of vanes rotating about a series of vane axes parallel to the main axis and defined by said rotary structure, and a mechanism associated with each vane and configured to control the variations in inclination of the associated vane according to the angular position of the rotary structure, this mechanism comprising a first element (65) supporting a pin (64) and a second element which is eccentric with respect to the first and configured to channel the movements of the pin along an imposed path.
According to the invention, said path is imposed by the translational movements of a carriage (62) along one or more guides (61) provided on the second element.
Disclosed is a fluidic rotor that includes a rotary structure (2, 3) mounted on a base (1) and supporting a set of directionally adjustable blades (4) capable of oscillating relative to the rotation of the rotary structure about a rotor axis, and transmission devices between a central shaft (6) of the rotor and each of the blades, capable of individually controlling the oscillations of said blades, each device comprising two pivoting elements (8, 13) having offset pivot axes, one of said elements having a slot (11a) and the other having a pin (12) that engages the slot. According to the invention, the two pivoting elements (8, 13) are intermediate elements of a transmission consisting of a set of elements (7, 8, 13, 15) engaged with each other between said central shaft (6) and the blades (4).
What is proposed is a rotor with adjustable vanes, comprising a rotary structure rotating about a main axis and comprising a set of vanes rotating about a series of vane axes parallel to the main axis and defined by said rotary structure, and a mechanism associated with each vane and configured to control the variations in inclination of the associated vane according to the angular position of the rotary structure, this mechanism comprising a first element (65) supporting a pin (64) and a second element which is eccentric with respect to the first and configured to channel the movements of the pin along an imposed path. According to the invention, said path is imposed by the translational movements of a carriage (62) along one or more guides (61) provided on the second element.
In a rotating machine having a fluidic rotor, the rotor comprises at least one blade mounted on an arm rotating about a rotor shaft forming a main axis of the rotor, the rotor being kept by a supporting structure in an orientation such that said axis is substantially perpendicular to the direction of flow of the fluid, the blade being mounted so as to pivot about an axis of rotation of the blade parallel to the main axis. The machine comprises means for generating a relative oscillation movement of the blade with respect to the arm at the axis of rotation of the blade, in order in this way to vary the inclination of the blade during the rotation of the rotor. Said means comprise, at the arm end, a mechanism comprising a first rotating element (A; B) known as the drive element and a second rotating element (B; A) known as the driven element, the elements being mounted on mutually parallel axes of rotation and separated by an inter-axis distance, the orientation of the drive element being controlled depending on the orientation of the rotor shaft while the orientation of the driven element determines the orientation of the blade, one of the rotating elements comprising a finger (D) spaced apart from its axis of rotation and the other rotating element comprising a groove (C) which receives the finger and in which the finger can slide. Application notably to wind turbines, to marine turbines and to nautical and aircraft propellers.
B63H 1/08 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment
F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
A rotating machine with a fluid rotor comprises a set of blades (4) mounted on arms (2) rotating about a main axis (1) of the rotor, the rotor being held by a support structure (5) in an orientation such that said axis (1) is essentially perpendicular to the direction of the flow of fluid, each blade (4) being mounted pivoting about a respective axis of rotation (3) parallel to the main axis (1), the machine comprising a linkage (13, 7, 14) for generating a relative rotational movement of each blade (4) relative to the arm (2) of same at the axis of rotation (3) thereof, in order to thus vary the tilt of the blade relative to the flow of fluid in an angular range. According to the invention, the machine comprises means for collectively modifying the geometry of the linkages (13, 7, 14) from a movement generated at the main axis of the rotor in order to vary the amplitude of the angular range.
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
F03D 7/06 - Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
B63H 1/08 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment
F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
B64C 27/54 - Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
In a rotating machine having a fluidic rotor, the rotor comprises at least one blade mounted on an arm rotating about a rotor shaft forming a main axis of the rotor, the rotor being held by a supporting structure in an orientation such that said axis is substantially perpendicular to the direction of flow of the fluid, the blade being mounted so as to pivot about an axis of rotation of the blade parallel to the main axis. The machine comprises means for generating a relative oscillation movement of the blade with respect to the arm at the axis of rotation of the blade, in order in this way to vary the inclination of the blade during the rotation of the rotor. Said means comprise, at the arm end, a mechanism comprising a first rotating element (A; B) known as the drive element and a second rotating element (B; A) known as the driven element, the elements being mounted on mutually parallel axes of rotation and separated by an inter-axis distance, the orientation of the drive element being controlled depending on the orientation of the rotor shaft while the orientation of the driven element determines the orientation of the blade, one of the rotating elements comprising a finger (D) spaced apart from its axis of rotation and the other rotating element comprising a groove (C) which receives the finger and in which the finger can slide. Application notably to wind turbines, to marine turbines and to nautical and aircraft propellers.
B63H 1/08 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment
F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
9.
IMPROVEMENTS TO ROTATING MACHINES WITH FLUID ROTOR HAVING ADJUSTABLE BLADES
A rotating machine with a fluid rotor comprises a set of blades (4) mounted on arms (2) rotating about a main axis (1) of the rotor, the rotor being held by a support structure (5) in an orientation such that said axis (1) is essentially perpendicular to the direction of the flow of fluid, each blade (4) being mounted pivoting about a respective axis of rotation (3) parallel to the main axis (1), the machine comprising a linkage (13, 7, 14) for generating a relative rotational movement of each blade (4) relative to the arm (2) of same at the axis of rotation (3) thereof, in order to thus vary the tilt of the blade relative to the flow of fluid in an angular range. According to the invention, the machine comprises means for collectively modifying the geometry of the linkages (13, 7, 14) from a movement generated at the main axis of the rotor in order to vary the amplitude of the angular range.
B63H 1/08 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment
F03D 7/06 - Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
10.
Rotary machine comprising a rotor placed in a fluid and equipped with orientable blades
A fluidic rotor rotary machine has a rotor comprising at least one blade (4) mounted on an arm (2) rotating about a main axis (1) of the rotor, the rotor being held by a support structure (5) in an orientation such that said axis (1) is essentially perpendicular to the fluid flow direction, the blade (4) being pivotally mounted about a rotational axis (3) parallel to the main axis (1), the machine being characterized in that it comprises means for generating a relative rotational movement of the blade (4) relative to the arm (2) at the rotational axis (3), thereby varying the blade angle, said means comprising an eccentric mechanism rotating on said blade rotational axis.
Application in particular to propellers and generators operating according to Lipp-type or Voith-Schneider-type kinematics, with possible mode switching.
F03D 7/02 - Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
B63H 1/10 - Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction, e.g. paddle wheels with adjustable vanes or blades with cyclic adjustment with blades extending axially from a disc-shaped rotary body
11.
ROTARY MACHINE COMPRISING A ROTOR PLACED IN A FLUID AND EQUIPPED WITH ORIENTABLE BLADES
The invention relates to a rotary machine comprising a rotor placed in a fluid and equipped with at least one blade (4) mounted on an arm (2) that rotates about a main shaft (1) of the rotor. The rotor is held in place by a supporting structure (5) and oriented such that the shaft (1) is essentially perpendicular to the direction of flow of the fluid. The blade (4) is mounted such that it can pivot about a rotation shaft (3) parallel to the main shaft (1). The machine is characterised in that it comprises means for rotating the blade (4) relative to the arm (2) at the rotation shaft (3) in order to vary the inclination of the blade, said means comprising an eccentric mechanism that rotates about the rotation shaft of the blade. The invention is particularly suitable for propellers and generators operating according to Lipp or Voith-Schneider kinematic principles, optionally switching between modes.
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