Abstract: The present invention related to a fiber mat reinforced resin composite comprising a reinforcing constituent of fibers in the form of at least one mat embedded within a resin matrix. The invention further relates to a method for the production of a fiber mat reinforced resin composite.

Abstract: One or more embodiments of the present invention concerns a wheel body of a wheel of an electric vehicle including a rim body with a rim portion for receiving a tire and a spoke portion for carrying the rim portion on a bearing for rotatably mounting the rim body on a wheel axle, a motor receiving body for receiving an electric motor for driving the wheel, and the motor receiving body includes an outer, radially surrounding receiving portion for receiving and fixing an outer part of the electric motor, which part is rotatable relative to the wheel axle.

Abstract: The present invention related to a fiber mat reinforced resin composite comprising a reinforcing constituent of fibers in the form of at least one mat embedded within a resin matrix. The invention further relates to a method for the production of a fiber mat reinforced resin composite.

Abstract: In a thin-walled profile with profile variation using anisotropisms due to the material or the structure, the anisotropisms due to the material or the structure are arranged locally in the profile to produce specific changes in the contour.

Abstract: A pivot drive for quick and precisely positioned rotational movements around a limited angle value comprises one or more rods with a cross-section which is not warping-free and one or more actuators for the introduction of longitudinal forces into the rods. The longitudinal forces generate warping in the rods so that the rod ends rotate relative to one another. Each rod is constructed in the form of a tube and has a continuous slot arranged in its longitudinal direction.

Abstract: A current collector (15) is provided for transmitting energy between a contact wire (2) and a motor coach. The current collector comprises at least one collector shoe (1) and a support arm (11) constructed and arranged to lift the collector shoe, and to apply a contact force in which the collector shoe lies below and against the contact wire. The support arm is rotatably connected to the motor coach about a horizontal axis (17) and raiseable about the axis by a lifting device (3). The lifting device includes a fast actuator (23) which is constructed and arranged to be controlled by a control device (22) in dependence on a signal (20, 21) of at least one displacement sensor, force sensor (18), or acceleration sensor (19) located on the current collector to maintain the contact force of the collector shoe against the contact wire.

Abstract: A current collector for transmitting energy between a contact wire and a motor coach having at least one collector shoe (1) and at least one suspension spring (16) with a positive stiffness, the suspension spring supporting the collector shoe which lies with a contact force from below and against the contact wire. The suspension spring (16) is arranged in parallel with a correction spring (17), the correction spring having a negative stiffness in a zero-crossing of its spring characteristic curve, which coincides with the spring travel of the suspension spring (16), which spring travel corresponds to the desired contact force.

Abstract: A rotor blade made of fiber-reinforced synthetic resin has a profile which, at least in the region of the blade tip is designed so as to be twistable by actuators about the rotor blade longitudinal axis. The torsion skin of the rotor blade in the region of the blade tip is designed anisotropically in the sense of a tension/torsion coupling and a controllable actuator, which acts in a longitudinal direction of the rotor blade upon the rotor blade tip, is disposed in the rotor blade spar. To achieve anisotropy, the torsion skin is a uni-directional winding having a winding angle of less than 45.degree. relative to the rotor blade longitudinal axis. The winding angle is dependent upon the force-to-displacement ratio of the actuator and may lie between 18.degree. and 40.degree.. In the region of the blade tip, the anisotropic torsion skin is disposed resting loosely on the rotor blade spar.

Abstract: A current collector is provided for transmitting energy between a contact wire and a motor coach. The current collector has a first support am (11) connected to the motor coach and being raisable about a first horizontal axis (28); and a pair of second support arms (8 and 18) connected to the free end of the first support arm rotatably about a second horizontal axis (28). The pair of the second support arms (8 and 18) is connected to an extension element (14) protruding over the second horizontal axis (28). Further, the current collector has a guide bar (13) rotatably connected with the motor coach and the extension element (14); and at least one collector shoe which is supported on the free end of the pair of the second support arms (8 and 18). The extension element (14) is connected to each of the two second support arms (8 and 18) via a torsional actuator (16 and 17, respectively) being arranged on the second horizontal axis (28).