Abstract: A connecting element (1) interacting with a fan blade (50) to transfer torque of a drive to the fan blade (50). An attachment portion (2) connects the connecting element (1) with the fan blade. The attachment portion (2) forms an outer edge portion (4) adjoining the outer contour of the connecting element (1). The attachment portion (2) cross-sectional shape is designed to taper toward the outer edge in at least some portions.

Abstract: A connecting element (1) interacting with a fan blade (50) to transfer torque of a drive to the fan blade (50). An attachment portion (2) connects the connecting element (1) with the fan blade. The attachment portion (2) forms an outer edge portion (4) adjoining the outer contour of the connecting element (1). The attachment portion (2) cross-sectional shape is designed to taper toward the outer edge in at least some portions.

Abstract: A rotating electric machine (1) having a stator (4) in a housing (2) and a rotor (10) supported by a shaft (6). The housing (2) circumferential wall (12) and first and second axially opposing end walls (14, 16) support bearing flanges with bearings (18) for the shaft (6). Two cooling fan impellers (20, 22) are connected to the shaft (6). An inner cooling fan impeller (20) positioned inside the housing (2) generates an inner cooling air circuit (A) inside the housing (2). An outer cooling fan impeller (22) provided outside the housing (2), generates an outer cooling air flow (B). The first end wall (14) is formed with a thermal conductivity of at least a specified value and has an outer cooling rib geometry (28) on its outer side facing the outer cooling fan impeller (22), and an inner cooling rib geometry (30) on its opposing inner side.

Abstract: The invention relates to a radial fan with an impeller (100) and a cylindrical drive unit (200) that can be rotated around the longitudinal axis, whereby the impeller (100) consists of a baseplate and of blades (101) arranged on the baseplate, and whereby the blades are located on the side facing the main air flow, and it is characterized in that the impeller (100) can be operatively connected to the drive unit (200) in two fastening planes.

Abstract: The invention relates to the blades of a fan wheel. The invention particularly relates to a hollow profiled blade for a fan wheel. A hollow profiled blade according to the invention for a fan wheel is made from a planar semi-finished product and has a leading edge and a trailing edge as well as a compression side and a suction side. A hollow area is formed in the interior of the hollow profiled blade whereby the part of the planar semi-finished product forming the one side of the hollow profiled blade extends over the part of the planar semi-finished product forming the other side of the hollow profiled blade.

Abstract: A rotating electric machine (1) having a stator (4) in a housing (2) and a rotor (10) supported by a shaft (6). The housing (2) circumferential wall (12) and first and second axially opposing end walls (14, 16) support bearing flanges with bearings (18) for the shaft (6). Two cooling fan impellers (20, 22) are connected to the shaft (6). An inner cooling fan impeller (20) positioned inside the housing (2) generates an inner cooling air circuit (A) inside the housing (2). An outer cooling fan impeller (22) provided outside the housing (2), generates an outer cooling air flow (B). The first end wall (14) is formed with a thermal conductivity of at least a specified value and has an outer cooling rib geometry (28) on its outer side facing the outer cooling fan impeller (22), and an inner cooling rib geometry (30) on its opposing inner side.

Abstract: Apparatus for supplying electrical energy to a mobile working machine in the off-road sector, wherein a supporting arm is provided on the working machine, and a drum for accommodating a cable is mounted on the supporting arm. A slip ring body is arranged in the interior of the drum shell, the slip ring body having a plurality of individual slip rings, from which the electrical energy is taken via brushes and transmitted to a cable which is passed on into the working machine. The slip ring body is mounted so that it is separated mechanically from the drum casing on a common axis, and means are provided for transferring the revolution of the drum casing to the inner slip ring body.

Abstract: A method of controlling an hydraulic activation unit includes the steps of using a characteristic diagram of a first hydraulic transformer as an input variable in the control unit; using a characteristic diagram of a second hydraulic transformer as an input variable in the control unit; and activating the hydraulic actuator responsive to the input variables. The hydraulic activation unit includes the hydraulic power unit, such as a hydraulic actuator or a hydraulic motor, for producing a force. The first hydraulic transformer is operably connected to a first side of the actuator for supplying a pressure. The second hydraulic transformer is operably connected to a second side of the actuator for supplying a pressure. The control unit for assessing the first and second hydraulic transformer operably activates the hydraulic actuator.

Abstract: The invention relates to a fitting arrangement for an antivibration mounting of an electromotor (1) on a load-bearing component by means of several interelements (6) arranged distributed around the perimeter and consisting of an elastic material. To always achieve an optimum vibration isolation independently of the motor's fitting position, it is provided that the interelements (6) are designed as oblong, radially aligned web elements (8) and are arranged axially, clamped under elastic prestress, between a mounting surface (12) on the motor side.

Abstract: The method for separating a profiled foil (5) is carried out using a rotating separation foil (1) which forms a planar surface with a circular periphery (11). The separation foil is rotated (1a) about the circle center (10) and in the plane (10a), the foil plane, which is spanned by the surface. The periphery is brought into contact (15) with the profiled foil by the execution of a relative movement (1b). In this, through abrasion, material (6) is removed and a separation gap (51) is produced in the profiled foil. Material is largely removed from the profiled foil only.

Abstract: A method for the shaping of strip-like films (2) involves the following steps: a) A film strip (2) is continuously forwarded from a film supply to shaping units. b) The film strip (2) is pleated in a first shaping unit (11). In this, edges (21, 22) are produced which form an angle of inclination to the edges (36) of the film strip having a constant value. c) After a forwarding of the pleated strip (2′) to at least one further shaping unit (12) the former is reshaped in one or more steps. In this the edges (21, 22) are eliminated through plastic deformation by means of a roller pair (120) in edge zones (30b) outside of a middle zone (30a) of the strip and are at the same time replaced by curved edges (31, 32). The angles of inclination of the curved edges continuously increase from the middle zone to the strip edges.

Abstract: The present invention relates to an arrangement for the vibration-isolating mounting of an electric motor (2) on a support part (6) via an essentially disk-shaped support element (12). The support element (12) has a motor-holding section (24) for connection to the electric motor (2) and a support-holding section (26) for connection to the support part (6), and the two holding sections (24, 26) are connected via elastic, web-like connecting pieces (28). The connecting pieces (28) are designed such that the two holding sections (24, 26) are elastically movable relative to each other three-dimensionally in all directions in space, specifically axially, radially and tangentially, over a certain movement play. The support element (12) has integrated stop means for the three-dimensional limiting of the elastic relative movements of the holding sections (24, 26) and/or an additional mass (110) to influence the vibration behavior.

Abstract: The method includes positioning a plurality of rotary milling saw stations about a path of travel for successive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of each blank to configure a drilling point. The blanks are rotated about their axis a predetermined amount, during travel between work stations, to expose the appropriate peripheral surface of the blank to the appropriate work station. The method and apparatus described in the invention is capable of producing a drill screw with relatively long flutes behind the cutting edges while not appreciably weakening the point structure. The turret carrying the blanks is intermittently indexed in timed relationship with the activation of the milling saw, the work stations and means to clamp the blanks at the work stations.

Abstract: The method includes positioning a plurality of rotary milling saw stations about a path of travel for successsive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of each blank to configure a drilling point. The blanks are rotated about their axis a predetermined amount, during travel between work stations, to expose the appropriate peripheral surface of the blank to the appropriate work station. The method and apparatus described in the invention is capable of producing a drill screw with relatively long flutes behind the cutting edges while not appreciably weakening the point structure. The turret carrying the blanks is intermittently indexed in timed relationship with the activation of the milling saw, the work stations and means to clamp the blanks at the work stations.

Abstract: The method includes positioning a plurality of rotary milling saw stations about a path of travel for successive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of each blank to configure a drilling point. The blanks are rotated about their axis a predetermined amount, during travel between work stations, to expose the appropriate peripheral surface of the blank to the appropriate work station. The method and apparatus described in the invention is capable of producing a drill screw with relatively long flutes behind the cutting edges while not appreciably weakening the point structure. The turret carrying the blanks is intermittently indexed in timed relationship with the activation of the milling saw, the work stations and means to clamp the blanks at the work stations.

Abstract: A molding machine into which nested stacks of preforms or parisons at ambient temperatures are loaded, which denests and applies the preforms individually onto complementary shaped mandrels in the machine. The preforms are made of a thermoplastic material, such as polystyrene, and the mandrels of the molding machine are internally heated to heat each parison as the machine is intermittently rotated. The mandrels are circumferentially mounted about a carriage in the machine and the carriage rotates about a horizontal axis. When viewing the machine at the side at which the carriage rotates in a counterclockwise direction, the preforms are individually applied to the mandrels at the 3 o'clock position by a loading mechanism. From the 3 o'clock position around and to the 6 o'clock position each preform is being heated on its mandrel.