Abstract:
The invention relates to a connector plug having the features cited in the preamble of Claim (1). The aim of the invention is to improve the design of a connector plug of the aforementioned type whereby expanding the end use of the connector plug. Said connector plug comprises: a connector plug housing (4) and a first cable feedthrough (2) for a cable having at least one first and second conductor; a contact insert (5), which is accommodated inside the housing and provided for the first conductor; means for fixing the cable (9, 7) in the area of the cable feedthrough (2), and; a second cable feedthrough (2). The inventive connector plug is characterized in that the second conductor is led out of the housing via the second cable feedthrough.
Abstract:
Wind energy turbines are relatively expensive capital goods, in terms of size and output design, which need to be protected against destructive forces, damage or other causes of a malfunction of a wind energy turbine, if the promised long service life of the wind energy turbine is to be obtained. At the same time, it is always desirable to operate wind energy turbines with the maximum possible output in order to achieve the highest possible energy yield. Both objectives, (i.e. a long service life and the highest possible energy yield) are in part diametrically opposed. In principle it would be possible to operate a wind energy turbine partly in an overload range to increase the energy yield; this would however simultaneously lead to a significant shortening of the service life. If, on the other hand, a wind energy turbine is operated in very low wind speed ranges, the turbine has better protection than others, but its energy yield is insufficient. The aim of the invention is to provide measures and options for protecting a wind energy turbine against damage or other causes of a malfunction of a wind energy turbine, whilst at the same time achieving the maximum possible energy yield. The invention also relates to a wind energy turbine comprising a SODAR system, which is mounted on the nacelle of the wind energy turbine and which captures data from the area in front of the rotor of the wind energy turbine.
Abstract:
The invention relates to a wind energy plant with a tower and a rotor arranged on the tower with at least one individual adjustable rotor blade, with a device for determining the direction of the wind and a device for determining the azimuth position. The aim of the invention is to develop a wind energy plant as above, such as to extend the life of the azimuth drive and/or to permit the use of a smaller and thus more manageable azimuth drive. Wind energy plant with a tower and a rotor arranged on the tower with at least one individual adjustable rotor blade, with a device for determining the direction of the wind and a device for determining the azimuth position, characterised by a control of the rotor blade adjustment depending upon a difference between the determined wind direction and the determined azimuth position.
Abstract:
The invention relates to a rotor blade for a wind turbine with a drag ratio, in particular in the central or main board region of said rotor, whose value exceeds 80 % and preferably 90 % of the maximum value of said ratio within a range of ±2° of the optimum pitch of said rotor.
Abstract:
The invention relates to an aircraft comprising a number of lifting rotors and propulsion rotors, provided with an electric motor for each rotor and with a power inverter for each motor. The aim of the invention is to provide an aircraft that has a higher load capacity. To this end, connecting bars are provided between the motors. The invention is based on the finding that connecting bars of this type, when they are arranged in the form of a lattice, enable a light yet stabile structure of the aircraft that, correspondingly, can carry heavier loads.
Abstract:
The invention relates to a device for rotating the shaft of a rotor blade of a wind energy plant relative to a hub of said wind energy plant. The inventive device comprises a bearing between the structural components and a gearwheel drive for actuating the rotation and adjusting the pitch of the rotor blade. According to the invention, a gearwheel of the drive and the bearing are disposed in the volume of a lubricant chamber.
Abstract:
A specific embodiment of a plain bearing and use thereof between a tower-mounted machine head and the tower head of a wind energy plant is disclosed. Said plain bearing for the transfer of large axial forces and high bending moments, with low relative movement, whereby the one bearing part has a ring shoulder, which engages in a ring groove on the other bearing part. The ring shoulder, which can have an outwardly-converging trapezoidal cross-section, has a friction lining on the surface of the free side thereof and, optionally, on the peripheral surface. The above, as well as the corresponding other bearing part, in particular, an outer ring, comprising the ring shoulder, may be divided into segments. The segments may, thus, be individually removed from the ensemble for maintenance and, in particular, treated with a new friction surface.
Abstract:
Several types of towers are used for wind power installations, predominantly lattice towers, steel pipe towers, and concrete towers. There are several ways of building concrete towers, for example by using assembly units made of prestressed concrete, whereby the individual assembly units made of prestressed concrete are embodied as segments that are positioned on top of each other and are then braced together. Disclosed is a means to accelerate the construction of a tower comprising stacked segments (4, 6) between which a thermosetting compound material (34) is applied. Disclosed is the tower of a wind power installation comprising stacked segments between which a thermosetting compound material is applied. The top area of the lower segment and/or the bottom area of the upper segment encompasses a heating element (6) on the side of the segment facing the opposite segment.
Abstract:
The invention relates to small aerogenerators, in particular to a small aerogenerator which has a nominal power ranging from 50 to 150 kW and can be mounted practically anywhere in the world with as little intensive machine support as possible. The aim of said invention is to simplify the erection of the aerogenerator, which consists of several components such as rotor, generator, nacelle, pier, wherein said components are arranged in a container for transporting to a construction site where they are assembled in such a way that an aerogenerator is formed. The container is constructed in such a way that it receives said aerogenerator and is used as the base thereof.
Abstract:
The invention relates to a method for erecting a tower made of prestressed concrete prefabricated assembly units and to a device for advantageous implementation of said method.In order to at least reduce the number of known problems occurring according to prior art when erecting a tower, a funnel-shaped device (8) is used to guide a pretensing wire (8) whose smaller cross-section (11) is substantially similar to the cross-section of the jacket tube (7). A seal (20) is also provided to create a pressure-tight transition between two segments (4, 6) arranged on top of each other. The height of the seal (20) corresponds substantially to the predetermined distance of the segments. A prestressed concrete prefabricated assembly unit (4, 6) is also disclosed, the inventive device (8) being integrated therein. The invention further relates to a method wherein expoxy resin is used as a bonding material (34) between two segments.