Abstract

The invention relates to a vertical axis turbine comprising a rotor and a frame for supporting the rotor, said frame comprising: - a top support with a bearing for the rotor, - a base support, and - six rigid legs, wherein the six rigid legs are attached in pairs to three mounting positions on the base support, and wherein the six rigid legs are attached in pairs different from the pairs formed at the base support to three mounting positions on the top support, wherein the three mounting positions on the base support lie on a first virtual circle with a first diameter, wherein the three mounting positions on the top support lie on a second virtual circle with a second diameter, and wherein the first diameter is larger than the second diameter.

IPC Classes  ?

• F03D 3/00 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
• F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
• F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors

Abstract

The invention relates to a rotor for a vertical axis turbine comprising: —a blade support structure extending from a center of the rotor, —a blade pivotally coupled to the blade support structure at a distance from the center of the rotor, and—a pitch regulating mechanism arranged between the blade support structure and the blade to regulate the pitch of the blade in dependence of fluid dynamic forces acting on the blade, wherein the pitch regulating mechanism comprises a damper system, wherein the damper system has a first damping coefficient in a first rotational direction of the blade relative to the blade support structure and a second damping coefficient in a second rotational direction of the blade relative to the blade support structure.

IPC Classes  ?

• F03D 3/06 - Rotors
• F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
• F03D 3/00 - Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor

Abstract

The invention relates to a rotor for a vertical axis turbine comprising: - a blade support structure extending from a center of the rotor, - a blade pivotally coupled to the blade support structure at a distance from the center of the rotor, and - a pitch regulating mechanism arranged between the blade support structure and the blade to regulate the pitch of the blade in dependence of fluid dynamic forces acting on the blade, wherein the pitch regulating mechanism comprises a damper system, wherein the damper system has a first damping coefficient in a first rotational direction of the blade relative to the blade support structure and a second damping coefficient in a second rotational direction of the blade relative to the blade support structure.

IPC Classes  ?

• F03B 15/06 - Regulating, i.e. acting automatically
• F03D 3/06 - Rotors

Abstract

The invention relates to a rotor for a vertical axis turbine comprising: - a blade support structure extending from a center of the rotor, - a blade pivotally coupled to the blade support structure at a distance from the center of the rotor, and - a pitch regulating mechanism arranged between the blade support structure and the blade to regulate the pitch of the blade in dependence of fluid dynamic forces acting on the blade, wherein the pitch regulating mechanism comprises a damper system, wherein the damper system has a first damping coefficient in a first rotational direction of the blade relative to the blade support structure and a second damping coefficient in a second rotational direction of the blade relative to the blade support structure.

IPC Classes  ?

• F03D 3/06 - Rotors
• F03B 15/06 - Regulating, i.e. acting automatically