TURBINE

Abstract

A turbine, in particular for harvesting energy in flowing air or flowing water, is easily adaptable to different application conditions and facilitating a comparably high degree of efficiency. This is achieved in that the basic shape of the turbine is cylindrical and is provided with blades which are parallel to an axis of the turbine. The blades are pivotally arranged in joints on the outer circumference of at least one turbine wheel. The blades are substantially L-shaped. The longer limb of the blade is curved preferably in a manner corresponding to the radius of the turbine casing, and the shorter limb lies within the surface line of the turbine.

Claims

1. A turbine, in particular for generating energy in flowing air or in flowing waters, which is cylindrical in basic shape and which is provided with blades arranged parallel to an axis of the turbine, wherein the blades are pivotably arranged in pivot joints on an outer circumference of at least one turbine wheel, wherein the blades are substantially L-shaped, wherein a long leg of the blade is preferably bent corresponding to the radius of the turbine shell and a short leg is located within the shell surface line of the turbine.

2. The turbine according to claim 1, wherein at least one pawl is arranged stationary in the shell of the turbine.

3. The turbine according to claim 1, wherein the at least one pawl is arranged pointing at about 11:00 o'clock and/or at about 9:30 o'clock and is arranged in such a manner that is contactable by the short leg of the blades when the turbine is rotating.

4. The turbine according to claim 1, wherein the turbine comprises 4 to 16 blades.

5. The turbine according to claim 1, wherein at least one blade is provided along its an outer edge parallel to the axis with an inflatable element in the region of the blade ends.

Description

[0021] The invention is described below in more detail by an exemplary embodiment based on a drawing. In the figures,

[0022] FIG. 1: shows a turbine according to the invention in a side view, and

[0023] FIG. 2: shows details of a blade of the turbine according to FIG. 1.

[0024] A turbine according to the invention, designed as a water turbine, is accommodated in a bearing 1, not illustrated in more detail, to be rotatable about its axis 2 and supported therein (FIG. 1). The direction of the axis 2 is approximately parallel to the water line of flowing water (and transverse to the direction of flow 8 of the flowing water), the turbine being arranged horizontally and completely submerged under water.

[0025] The turbine is cylindrical in its basic shape, with one turbine wheel 3 at each end face of the cylinder. The shell of the turbine is formed by twelve blades 4 (in folded position), which are arranged pivotably in pivot joints 6 of the turbine wheels 3. Accordingly, the pivot joints 6 are attached close to the circumference of the turbine wheels 3.

[0026] The blades 4 are substantially L-shaped (FIG. 2), a long leg 41 of the blade 4 being preferably bent corresponding to the radius of the turbine shell. The short leg 42 is located within the shell surface line and points against the direction of rotation of the turbine. The short leg is arranged in such a manner that when the turbine is rotating, it corresponds with at least one fixed pawl 9 located within the shell.

[0027] According to the invention, tilting up/folding out the blades 4 when contacting the pawl 9 is supported by the short leg 42. (FIG. 1). In the example, the pawl 9 is arranged such that its tip points to about 11.00 o'clock, like a clock hand.

[0028] In the example, the blades 4 are provided on their inside with a guide vane 5. At the outer edge of each blade 4 in the example, there is also arranged a hose 7 or similar element that runs in the axial direction and can be inflated with air. In this case, the air is supplied and discharged by means of a supply unit, which is not illustrated.

[0029] The blades 4 pivot out as soon as their position is approximately parallel to the direction of flow 8 and the short leg 42 contacts the pawl 9.

[0030] After a rotation to approx. 270°, one blade 4 is completely folded in again. The water level can be arbitrary and the respective upper blade can also be located just above the water surface when the turbine rotates.

REFERENCE LIST

[0031] 1 bearing [0032] 2 axis [0033] 3 turbine wheel [0034] 4 blade [0035] 5 guide vane [0036] 6 pivot joint [0037] 7 hose [0038] 8 direction of flow [0039] 9 pawl [0040] 41 long leg [0041] 42 short leg