Abstract: An underwater flow turbine includes a gondola having an interior, a generator in the gondola interior, a rotatable hub connected to the gondola and configured to support a plurality of rotor blades, the rotatable hub being operatively connected to the generator, and an air handling device, such as a fan or an air filtration system, in the gondola and/or in the hub.

Abstract: An assembly includes a fastening screw having an end surface and a substantially cylindrical side surface extending axially away from the end surface and a protective cap covering the free end. The cap has a first end opening from which the fastening screw extends, a second end overlying the end surface of the fastening screw, a side wall surrounding a portion of the cylindrical side surface, an inner surface defining a cap interior, and an outer surface. A cap screw extends through an opening in the second end of the cap and into a threaded opening in the end surface of the fastening screw to secure the protective cap to the fastening screw.

Abstract: An air spring for a motor vehicle having a rolling bellows filled with gas under pressure, one end of the rolling bellows is connected to a load receiver and the other end is fastened to a roll-off piston?. The load receiver and the roll-off piston are moveable relative to one another depending on a force impinging on the load receiver toward the roll-off piston. A sensor device is arranged inside the rolling bellows by which a distance between the load receiver and the roll-off piston is detected. A pressure piece extending in direction of the roll-off piston is arranged at the load receiver and a sensor body is movably drivable along a sensor track of the sensor device by an end region of the pressure piece facing the roll-off piston. The sensor device generates an electric signal corresponding to the position of the sensor body on the sensor track.

Abstract: An air spring for a motor vehicle having a rolling bellows filled with gas under pressure, one end of the rolling bellows is connected to a load receiver and the other end is fastened to a roll-off piston’. The load receiver and the roll-off piston are moveable relative to one another depending on a force impinging on the load receiver toward the roll-off piston. A sensor device is arranged inside the rolling bellows by which a distance between the load receiver and the roll-off piston is detected. A pressure piece extending in direction of the roll-off piston is arranged at the load receiver and a sensor body is movably drivable along a sensor track of the sensor device by an end region of the pressure piece facing the roll-off piston. The sensor device generates an electric signal corresponding to the position of the sensor body on the sensor track.

Abstract: A sensor holder for a piston-cylinder unit with a cylinder and a piston rod which is movable relative to the latter comprises a holding element which carries out a synchronous movement with respect to the piston rod and has a first position measuring device. A second position measuring device is held by a holder so as to be axially stationary with respect to the cylinder, and there is a rotationally oriented installation position between the first position measuring device and second position measuring device. The cylinder-side holder and the holding element are rotatable relative to one another, and a magnetic force acting between the holder and the holding element brings about a rotational orientation of the two position measuring devices relative to one another.

Abstract: A sensor holder for a piston-cylinder unit with a cylinder and a piston rod which is movable relative to the latter comprises a holding element which carries out a synchronous movement with respect to the piston rod and has a first position measuring device. A second position measuring device is held by a holder so as to be axially stationary with respect to the cylinder, and there is a rotationally oriented installation position between the first position measuring device and second position measuring device. The cylinder-side holder and the holding element are rotatable relative to one another, and a magnetic force acting between the holder and the holding element brings about a rotational orientation of the two position measuring devices relative to one another.

Abstract: Pneumatic spring comprises a rolling bellows, one end of which is attached to a connector part. The connector part has a profiling, which cooperates with a clamping ring to hold the rolling bellows in position. The profiling is in the form of a shoulder, against the axial surface of which the rolling bellows rests, where the rolling bellows is deformed axially by the clamping ring onto a radial clamping surface.

Abstract: Damping valve comprising a damping valve body with at least one flow-through channel, the outlet of which is covered at least by an elastic valve disk, which is pretensioned against the damping valve body at least indirectly by a spring, where at least one support disk of smaller diameter is provided on the elastic valve disk, facing the spring, this support disk not executing any elastic movement, the spring exerting its force in the area radially outside the support disk.

Abstract: Damping valve comprising a damping valve body with at least one flow-through channel, the outlet of which is covered at least by an elastic valve disk, which is pretensioned against the damping valve body at least indirectly by a spring, where at least one support disk of smaller diameter is provided on the elastic valve disk, facing the spring, this support disk not executing any elastic movement, the spring exerting its force in the area radially outside the support disk.