A rotor is mounted in a stationary casing of a centrifugal separator. An electrical rotation sensor with a first electric coil mounted on the rotor and a second electric coil, connectable to a power source and mounted on the casing, is provided. A processor associated with the second coil detects voltage oscillation induced in the second coil when the rotor rotates to calculate and display rotor speed. The first coil is connected in a circuit including electrodes exposed to the interior of the rotor at a predetermined position. The voltage across the second coil changes when the electrodes are contacted by accumulated material in the interior of the rotor. This change is detected to provide an indication that cleaning of the rotor is required. A permanent magnet is mounted on the rotor and causes automatic charging of the battery via the stator coil when the rotor rotates.

A filter assembly has a housing with a housing inlet and a drain. A rotary vessel is rotatably mounted within the housing and has a rotary vessel inlet and a rotary vessel outlet. Fluid exiting the rotary vessel outlet exits the housing through the drain. A valve assembly moveable between a closed and an open configuration is provided. When closed, the valve assembly fluid-tightly seals rotary vessel inlet from housing inlet. When open, the rotary vessel inlet is in fluid communication with the housing inlet such that fluid flowing into the housing inlet passes into the rotary vessel inlet. The valve assembly is moveable from closed to open configuration when a pressure of fluid flowing into the housing inlet exceeds a threshold pressure. The filter assembly has a fluid passageway permitting air flow into the rotary vessel through the rotary vessel inlet when the valve assembly is closed.

An oil centrifuge has an integral, rotatably mounted centrifuge rotor and a feed tube connected to the centrifuge rotor. A flow path is provided that supplies oil to the centrifuge rotor. The feed tube is a section of the flow path. The flow path has a throttle point having a reduced throttle cross section that is reduced relative to an upstream flow path cross section of the flow path upstream of the throttle point.

An oil centrifuge has an integral, rotatably mounted centrifuge rotor and a feed tube connected to the centrifuge rotor. A flow path is provided that supplies oil to the centrifuge rotor. The feed tube is a section of the flow path. The flow path has a throttle point having a reduced throttle cross section that is reduced relative to an upstream flow path cross section of the flow path upstream of the throttle point.

A media propelling system comprises a motor for rotating a wheel assembly that is configured to propel the media and a valve assembly configured to control flow rate of the media to the wheel assembly. The valve assembly includes a media valve configured to selectively open and close to control the flow rate of the media to the wheel assembly, an actuator that actuates the media valve to open or close the media valve and thereby change the flow rate of the media, and a control valve configured to receive pressurized material and dispense the pressurized material to the actuator to thereby control operation of the actuator. A control system is in communication with the motor and the control valve and is configured to control the control valve based on a comparison of a sensed or actual amperage of the motor and a target amperage of the motor.

A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing and positioned so as to be contacted by the fluid expelled from the jet. The fluid causes the turbine to rotate about a center rotational axis within the housing. The turbine comprises a first axial end, a second axial end, and a plurality of vanes extending axially relative to the center rotational axis from the first axial end to the second axial end. The plurality of vanes defines axially-extending channels between each of the plurality of vanes. The first axial end is axially open such that fluid can flow unblocked axially through the first axial end and into the channels. The jet is positioned such that at least a portion of the fluid enters into the turbine through the first axial end.

A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing and positioned so as to be contacted by the fluid expelled from the jet. The fluid causes the turbine to rotate about a center rotational axis within the housing. The turbine comprises a first axial end, a second axial end, and a plurality of vanes extending axially relative to the center rotational axis from the first axial end to the second axial end. The plurality of vanes defines axially-extending channels between each of the plurality of vanes. The first axial end is axially open such that fluid can flow unblocked axially through the first axial end and into the channels. The jet is positioned such that at least a portion of the fluid enters into the turbine through the first axial end.

A centrifuge rotor for a centrifugal separator for separation of a relatively heavy phase of a fluid from a relatively light phase of the fluid is disclosed. The centrifuge rotor includes a stack of conical disks, and has a central axis of rotation. Each conical disk has an outward surface and an inward surface. The stack of conical disks includes a plurality of interspaces between adjacent conical disks. The interspaces include first interspaces for separation of the relatively heavy phase from the relatively light phase, and second interspaces. A check valve device is provided in each second interspace for closing the second interspace in an inward direction towards the central axis, and permitting opening of the second interspace in an outward direction. Also a centrifugal separator, a method for separation and a conical disk are disclosed.

A centrifuge rotor for a centrifugal separator for separation of a relatively heavy phase of a fluid from a relatively light phase of the fluid is disclosed. The centrifuge rotor includes a stack of conical disks, and has a central axis of rotation. Each conical disk has an outward surface and an inward surface. The stack of conical disks includes a plurality of interspaces between adjacent conical disks. The interspaces include first interspaces for separation of the relatively heavy phase from the relatively light phase, and second interspaces. A check valve device is provided in each second interspace for closing the second interspace in an inward direction towards the central axis, and permitting opening of the second interspace in an outward direction. Also a centrifugal separator, a method for separation and a conical disk are disclosed.

The present disclosure generally relates to a motor driven, high velocity decanter, and more particularly to a decanter which incorporates a horizontal rotating bowl and a rotating scroll. The decanter is capable of separating particulate material or solids from a liquid. A motor is coupled to and drives the bowl. Rotational power is transferred from the bowl to the scroll through a gearbox. An adjustable speed brake is coupled to the scroll to affect the differential speed between the bowl and the scroll. In one example, the adjustable speed brake is a positive displacement pump.