Patent ID: 7168571

Claim:
An inverting-filter centrifuge comprising a filter drum ( 16 ) with radial pass-through openings ( 18 ), which is rotatably supported in a machine frame ( 2 ) and projects in a cantilevered manner into a housing ( 1 ) that is connected to the machine frame ( 2 ), said filter drum ( 16 ) radially enclosing a centrifugal chamber ( 14 ) that can be placed under normal pressure, overpressure or underpressure, comprising a centrifugal chamber lid ( 25 ) that closes the centrifugal chamber ( 14 ) at its face end, comprising a pusher bottom ( 23 ) that is rigidly joined to the centrifugal chamber lid ( 25 ) while leaving a free space and defining the other side of the centrifugal chamber ( 14 ), wherein the centrifugal chamber ( 14 ) is filled from the side, the filter drum ( 16 ) and pusher bottom ( 23 ) are caused to rotate in unison by means of a rotatably driven hollow shaft ( 3 ) and the hollow shaft ( 3 ) is firmly connected to the filter drum ( 16 ), an axially displaceable pusher shaft ( 12 ) is disposed inside the hollow shaft ( 3 ) rotating in unison with it, the filter drum ( 16 ) and pusher bottom ( 23 ) are moved relative to one another by means of an axial displacement of the pusher shaft ( 12 ) in order to turn up the filter cloth and expel separated solids from the centrifugal chamber ( 14 ) into a solids collection chamber ( 32 ), characterized in that the centrifugal chamber ( 14 ) is closed at its face end by a non-perforated centrifugal chamber lid ( 25 ) that is closed across its entire surface, that the pusher bottom ( 23 ) defining the centrifugal chamber ( 14 ) on the other side is firmly connected to the rotating pusher shaft ( 12 ) and that an opening ( 15 ) extending through the pusher bottom ( 23 ) and opening into the centrifugal chamber ( 14 ) passes through the pusher shaft ( 12 ) along its entire length to its end facing away from the centrifugal chamber ( 14 ) and transitions, via an inlet pipe ( 51 ) that is rigidly joined to a radially static pusher plate ( 74 ) into an inlet channel ( 26 ) that is connected to the pusher plate ( 74 ), and a passage is thus created for media to be entered into the centrifugal chamber ( 14 ), said passage being sealed against the environment by means of a seal ( 47 ) arranged between the rotating pusher shaft ( 12 ) and the pusher plate ( 74 ) that is axially connected to it.