A centrifuge system includes a centrifuge and a feed line fluidly connected to centrifuge with the centrifuge driven by a hydraulic system. The hydraulic system includes an electric motor driving a hydraulic pump connected to a fluid reservoir with the hydraulic pump providing hydraulic fluid to one or more hydraulic motors which in turn rotate the centrifuge. The system includes a pressure sensor for measuring fluid pressure and a speed sensor for measuring the rotational speed of the centrifuge. A controller can be in communication with the hydraulic system and the sensors and can receive measurements from the sensors and adjust the pressure of hydraulic fluid flowing to the one or more hydraulic motors to maintain a rotational speed of the centrifuge based on differing loads. The system can include one or more valves, controlled by the controller, which can also adjust the hydraulic pressure of the system.

A centrifuge system includes a centrifuge and a feed line fluidly connected to centrifuge with the centrifuge driven by a hydraulic system. The hydraulic system includes an electric motor driving a hydraulic pump connected to a fluid reservoir with the hydraulic pump providing hydraulic fluid to one or more hydraulic motors which in turn rotate the centrifuge. The system includes a pressure sensor for measuring fluid pressure and a speed sensor for measuring the rotational speed of the centrifuge. A controller can be in communication with the hydraulic system and the sensors and can receive measurements from the sensors and adjust the pressure of hydraulic fluid flowing to the one or more hydraulic motors to maintain a rotational speed of the centrifuge based on differing loads. The system can include one or more valves, controlled by the controller, which can also adjust the hydraulic pressure of the system.

A centrifugal separator is configured to separate liquid and solid particles from a flow of gas generated by a machine. The centrifugal separator includes a centrifugal rotor, a hydraulic drive arrangement configured to rotate the centrifugal rotor, a hydraulic connection for connecting the hydraulic drive arrangement to a hydraulic circuit of the machine, and a connecting portion for connecting the centrifugal separator to the machine. The hydraulic connection is arranged on the connecting portion, and the connecting portion is configured to be inserted into a connecting aperture of the machine. A machine includes the centrifugal separator.

A centrifugal separator is configured to separate liquid and solid particles from a flow of gas generated by a machine. The centrifugal separator includes a centrifugal rotor, a hydraulic drive arrangement configured to rotate the centrifugal rotor, a hydraulic connection for connecting the hydraulic drive arrangement to a hydraulic circuit of the machine, and a connecting portion for connecting the centrifugal separator to the machine. The hydraulic connection is arranged on the connecting portion, and the connecting portion is configured to be inserted into a connecting aperture of the machine. A machine includes the centrifugal separator.

Various arrangements of a turbine for a rotating coalescer element of a crankcase ventilation system for an internal combustion engine are described. In some arrangements, the turbine is an impulse turbine, which is also known as a pelton turbine or a turgo turbine. The turbine is used to convert hydraulic power from a stream of pressurized fluid to mechanical power that is used to drive the rotating element. The turbine includes a non-wetting surface (e.g., an oleophobic or hydrophobic surface) that repels the pressurized fluid. The non-wetting surface may be achieved through plasma coating, fluoropolymer coating, micro-topography features, and the like. The non-wetting surface increases the power transmission efficiency from the stream of pressurized fluid to the turbine, thereby increasing the rotational speed of the rotating element compared to wettable surfaced turbines, which in turn increases the efficiency of the rotating element.

Various arrangements of a turbine for a rotating coalescer element of a crankcase ventilation system for an internal combustion engine are described. In some arrangements, the turbine is an impulse turbine, which is also known as a pelton turbine or a turgo turbine. The turbine is used to convert hydraulic power from a stream of pressurized fluid to mechanical power that is used to drive the rotating element. The turbine includes a non-wetting surface (e.g., an oleophobic or hydrophobic surface) that repels the pressurized fluid. The non-wetting surface may be achieved through plasma coating, fluoropolymer coating, micro-topography features, and the like. The non-wetting surface increases the power transmission efficiency from the stream of pressurized fluid to the turbine, thereby increasing the rotational speed of the rotating element compared to wettable surfaced turbines, which in turn increases the efficiency of the rotating element.

A turbine having a turbine wheel, as used for example as a drive for active oil separators, and to a liquid separator having such a turbine is described.

A turbine having a turbine wheel, as used for example as a drive for active oil separators, and to a liquid separator having such a turbine is described.

An apparatus for collection of heavier particles such as gold flowing in a river includes a support frame with legs for mounting in the river spaced from the bed with a series of drum mounted on the support frame one behind the other for rotation about an axis transverse to the river flow. The drums have a plurality of blades mounted so that flow of water in the river causes a rotation of the drum, a plurality of water entry openings and a plurality of discharge openings in the drum with the drum shaped such that rotation causes a centrifugal action such that the heavier particles remain within the drum against escape from the drum while lighter particles and water are discharged.

An apparatus for collection of heavier particles such as gold flowing in a river includes a support frame with legs for mounting in the river spaced from the bed with a series of drum mounted on the support frame one behind the other for rotation about an axis transverse to the river flow. The drums have a plurality of blades mounted so that flow of water in the river causes a rotation of the drum, a plurality of water entry openings and a plurality of discharge openings in the drum with the drum shaped such that rotation causes a centrifugal action such that the heavier particles remain within the drum against escape from the drum while lighter particles and water are discharged.