Abstract: The centrifuge (1) described has at least one device (11,12) designed to control the operation of the centrifuge, the devices being mounted to rotate with the rotating part of the centrifuge and to be operated by a mechanical actuator (13) also rotating with it. Such devices may, for instance, be drain valves, periodically opening discharge valves, sill height adjustment devices, pressure-control devices, temperature-control devices, etc. At least one part of the devices of this centrifuge to be controlled independently of the centrifugal force is designed so that the rotating actuator (13) changes its shape as a function of the temperature and has at least one temperature-specific shape.

Abstract: Solid-bowl helical centrifuge for separating a suspension, with a stationarily secured intake pipe (31) for supplying the suspension from a stationary infeed point outside the centrifuge to a separation space (3) left between the screw (2) and the bowl (1), whereby, to prevent obstructions due to centrifugal force and malfunctions due to radial displacements and ensure low-maintenance operation, the intake pipe (31) extends into an intake space (32) inside the screw and the end (34) at that location rests against a component (36 and 35, 36 and 38, 36, or 43), which is secured to the screw, by way of a friction bearing (12) with two halves (14 and 15) that are made of a ceramic material where they contact each other.