Abstract: A system for delivering elastomeric media comprises a gear pump and a screw-type extruder which, viewed in the delivery direction of the pumping medium, is arranged in front of the gear pump and which comprises a screw and a screw casing. The screw casing has at least one conical part, and the screw has at least one tapering in the area of the conical part. For the controlled feeding of energy into the pumping medium, the screw is axially displaceable in the screw casing.

Abstract: A system has a magnetic coupling for the no-contact transmitting of a torque from a first shaft coupled with a drive unit to a second shaft disposed in a housing. One of the shafts is provided with an inner rotor having magnets and the other shaft is provided with an outer rotor having magnets. The shaft driven by the drive unit is connected in an articulated manner with the drive-side rotor.

Abstract: A gear pump having two meshing gears which are each assigned to a shaft and which are each driven by a driving unit. The driving units are controllable by a control unit such that the shafts rotate at a definable angular velocity. The control units have a symmetrical construction, and a control device provided in each control unit, each control device being connected to the other by way of a data line.

Abstract: The invention relates to a gear pump consisting of two meshing gears which are each assigned to a shaft and which are each driven by means of a driving unit. The driving units are controllable by a control unit such that the shafts rotate at a definable angular velocity. According to the invention, the control units have a symmetrical construction, a control device being provided in each control unit, which control device is operably connected with the other by way of a data line.

Abstract: A gear pump having two meshing gears which are each assigned to a shaft and which are each driven by a driving unit. The driving units are controllable by a control unit such that the shafts rotate at a definable angular velocity. The control units having a symmetrical construction, and a control device provided in each control unit, each control device being connected to the other by way of a data line.

Abstract: A gear pump for delivering liquid media has a pump housing with at least two bores, in which at least two meshing gears with tooth tips are contained. The gears are radially mounted by bearing surfaces which on one side consist of areas of the tooth tips and on the other side, of areas of the interior of the bores. This arrangement requires no slide bearings in the conventional sense, which results in a smaller number of pump parts and hence to reduced manufacturing costs.

Abstract: A method stabilizes the temperature in a gear pump lubricated with material to be delivered. At least one housing part has at least two slide bearings in which shafts are mounted and are lubricated by medium to be delivered. A medium is adjusted in a temperature stabilizer to a predetermined temperature and then flows firstly through the housing part and secondly through shafts and/or slide bearings to stabilize the temperature.

Abstract: A gear pump has a housing, a pump shaft supported in a housing wall by a bearing, and a pumping gear supported on the pump shaft which is operable to pump newtonian and non-newtonian liquid of different densities. A relief collection zone is arranged on a low-pressure side of the bearing for collecting leakage liquid passing through the bearing along the shaft. At least two return ducts or bores are provided which connect the collection or relief zone with a suction side of the pump in order to return the collected leakage liquid.

Abstract: A method is provided for monitoring the operating status of one or more pumps, particularly gear pumps, whereby system parameters are determined by a corresponding measuring device. The system parameters are subsequently processed in a local evaluation unit into characteristic numbers. Finally at least some of the characteristic numbers determined in the local evaluation unit are transmitted from the pump and/or the local evaluation unit to the central evaluation unit. Based on the characteristic numbers, the operating status of the pump is determined and if necessary, an appropriate action is triggered.

Abstract: A slide bearing for a gear pump or the like has a lubrication groove provided in the surface of the cylinder forming the slide bearing. The lubrication groove is constructed to be ending flatly in the area of that edge which, with respect to the shaft rotating direction acts as an inlet edge into the slot between the slide bearing and the shaft. Thus, it is achieved that the slide bearing is sufficiently lubricated also by fluid which flows at a higher viscosity and has an unknown elastic performance.

Abstract: A slide bearing has a bearing bore for accommodating a shaft acted upon at least temporarily by a radial force. At least one bearing end of the slide bearing has at least one chamfer for preventing a contact between the shaft and the slide bearing and/or for facilitating the supply of the slide bearing with lubricating medium. In a preferred embodiment, in which the radial force acts essentially in a predetermined direction onto the shaft, at least one chamfer is provided on an unstressed side created because of the predetermined force effect, which chamfer is larger than a chamfer on a stressed side situated opposite the unstressed side. By means of the chamfer or chamfers, the danger of contact on the unstressed side caused by a bending of the shaft is reduced and the supply of the slide bearing with lubricating medium is increased without significantly reducing the bearing length on the stressed side which essentially carries the bearing load.

Abstract: A gear pump for conveying fluid media, particularly viscous media, has tube or collar-type sections on the suction side and/or delivery side for connecting the pump in a weldable manner with additional system components.