The invention relates to a device (1) for controlling the setting of the blades (2) of a rotor (3) of a propeller, including a radial shaft (6), the rotation of which modifies the setting of the blade (2), a main spring (13), a first end (14) of which is connected to the rotor (3) and a second end (
The invention relates to a device (1) for controlling the setting of the blades (2) of a rotor (3) of a propeller, including a radial shaft (6), the rotation of which modifies the setting of the blade (2), a main spring (13), a first end (14) of which is connected to the rotor (3) and a second end (15) of which is connected to a part (8, 10) having an axial movement which drives the rotation of the radial shaft, and has a movement, the travel of which is offset relative to the first end in a direction (7) that is orthogonal to the axial direction (5), the main spring exerting a resilient force which aims to move the parts toward a position in which the cord of the profile of the blade is orthogonal to the plane of rotation of the propeller, in the absence of part control by means of a jack.
대표청구항▼
1. A control device (1) for the blade angle of the blades (2) of a rotor (3) of a propeller (4), comprising: a radial shaft (6) whereof the rotation modifies the blade angle of the blade (2),pieces (8, 10) capable of being displaced jointly according to an axial direction (5) of the device (1), so a
1. A control device (1) for the blade angle of the blades (2) of a rotor (3) of a propeller (4), comprising: a radial shaft (6) whereof the rotation modifies the blade angle of the blade (2),pieces (8, 10) capable of being displaced jointly according to an axial direction (5) of the device (1), so as to cause rotation of the radial shaft (6),at least one actuator (12) controlling displacement of the pieces (8, 10) according to the axial direction (5); characterized in that it comprises: at least one main spring (13) with a first end (14) connected to the rotor (3), and with a second end (15) connected to one of the pieces (8, 10), the second end (15) presenting a displacement with a course which is shifted relatively to the first end (14) according to a direction (7) orthogonal to the axial direction (5),the main spring (13) exerting resilient force tending to displace the pieces (8, 10) towards a position in which the cord (16) of the profile of the blade (2) is orthogonal to the plane of rotation of the propeller (4), in the absence of control of the pieces (8, 10) by the actuator (12). 2. The device according to claim 1, wherein the main spring (13) exerts resilient force tending to displace the pieces (8, 10) towards a position in which the cord (16) is orthogonal to the plane of rotation of the propeller (4), from an initial position of the pieces (8, 10) for which the cord (16) presents an angle between −30° and +90° with the plane of rotation of the propeller (4). 3. The device according to claim 1, wherein the device (1) has at least one stop (17) for limiting axial displacement of the pieces (8,10). 4. The device according to claim 3, wherein the stop (17) prevents axial displacement of the pieces (8, 10) beyond a position for which the cord (16) presents an angle greater than a feathered position. 5. The device according to claim 1, comprising at least one secondary spring (18) configured to exert axial resilient force on the pieces (8, 10) which opposes the resilient force exerted by the main spring (13) on the pieces (8, 10). 6. The device according to claim 5, wherein the secondary spring (18) exerts axial resilient force on the pieces (8, 10) when the latter are located in a position for which the cord (16) presents an angle greater than or equal to +(90−θ)° with the plane of rotation of the propeller (4), θ being positive. 7. The device according to claim 1, further comprising at least one tertiary spring (20), configured to exert axial resilient force on the pieces (8, 10), which opposes the resilient force exerted by the main spring (13) on the pieces (8, 10), when the latter are located in a position for which the blade exerts force on the pieces (9, 10) tending to displace them towards a position for which the cord (16) presents an angle positive with the plane of rotation of the propeller (4). 8. The device according to claim 7, wherein the tertiary spring (20) is configured to exert axial resilient force on the pieces (8, 10) which opposes the resilient force exerted by the main spring (13) on the pieces (8, 10) when the latter are located in a position for which the cord (16) presents an angle in an interval whereof the terminals are (−30+β)° and (−30°), β being positive. 9. A propeller comprising a rotor (3) and blades (2), characterized in that it comprises a control device (1) of the blade angle of the blades (2), according to claim 1. 10. The propeller according to claim 9, wherein the device comprises a main spring (13) for each of the blade (2).
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이 특허에 인용된 특허 (6)
Jang, Keun-Suk, Apparatus for generating power using wind energy.
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