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 liner for a filter sub-assembly has a wall having an outermost surface and an innermost surface. The innermost surface bounds a cavity extending between opposing first and second ends of the liner. A portion of the outermost surface is textured. The liner may be used in a rotor of a filter assembly.

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 apparatus for the cleaning of crankcase gas from an internal combustion engine includes a housing and a separation chamber for the crankcase gas with a centrifugal rotor arranged for the cleaning of the crankcase gas in the separation chamber. The centrifugal rotor includes a drive shaft extending into a drive chamber of the apparatus. A turbine is connected to the drive shaft. A nozzle is arranged to receive pressurized liquid from the combustion engine and to direct the pressurized liquid in a jet from a nozzle opening against the turbine for rotation of the centrifugal rotor. An adapter element is configured such that the apparatus is mountable onto the combustion engine with a drive liquid passage in communication with the nozzle. The nozzle is integrally formed with the adapter element with a nozzle passage having a conical shape which converges in the flow direction towards the nozzle opening.

A centrifugal separator for cleaning a gas containing liquid impurities includes a stationary casing including a surrounding sidewall, a first end wall and a second end wall which enclose a space through which a gas flow is permitted. The space includes an upper separation chamber and a lower discharge chamber. The separator further includes an inlet extending through the stationary casing and permitting supply of the gas to be cleaned to the separation chamber, a rotating member including a stack of separation discs and being arranged to rotate around an axis of rotation, wherein the stack of separation discs is arranged in the separation chamber and a drive member for rotating the rotating member. The discharge chamber is arranged axially below the stack of separation discs such that clean gas and separated liquid impurities both enter said discharge chamber after being separated in said stack of separation discs, and further, the separator includes a gas outlet configured to permit discharge of cleaned gas from said stationary casing, wherein the gas outlet includes an outlet opening through the stationary casing and a portion extending from the outlet opening into the discharge chamber. Further, there is a drainage outlet arranged in said discharge chamber and configured to permit discharge of separated liquid impurities from said stationary casing.

A cover for a centrifugal filter, in which when water separated from oil is discharged through outlets provided in covers, can reduce the amount of oil leaking out with mixed gas and water. The cover constitutes the centrifugal filter by covering a rotor that rotates so as to filter impurities contained in oil by using a centrifugal force. The rotor is provided with at least one nozzle through which filtered oil is jetted. The cover includes: an inner cover configured to cover the rotor and including a first outlet and a first inlet; an outer cover provided outside the inner cover; and an oil leak prevention member provided in the first outlet.

A filter for an internal combustion engine includes an oil filter and a separator. The oil filter has a rotor that rotates about an axis in response to oil that is discharged from the rotor. The separator has a spindle that is detachably coupled to the rotor. A plurality of discs are mounted to the spindle, which is rotated about the axis by the rotation of the filter. The rotate of the spindle rotates the discs, which separates oil from gasses introduced into the separator.

A rotor of a centrifugal separator, including a central shaft, a plurality of identical discs arranged in a stack on the central shaft, the central shaft having on an outer circumference an engagement contour for a rotationally fixed, axially slidable engagement with a corresponding contour on an inner circumference of the discs, the engagement and corresponding contours engageable with one another in multiple rotational positions at a circumferential distance from one another, and each disc having spacing elements situated at a disc circumferential distance from one another, which spacing elements hold each two adjacent discs at an axial distance from one another, forming an intermediate flow gap having a gap dimension. The spacing elements are formed and configured such that, via different rotational positions relative to one another of adjacent discs, at least two different axial dimensions of the flow gap between adjacent discs may be set.

A rotary vessel for a filter assembly has a rotor body rotatable about an axis of rotation and a spigot, integral or coupled with the rotor body, extending away from the rotary body along the axis of rotation. The spigot has an abutment surface against which, in use, a cooperating surface of the filter assembly abuts to inhibit movement of the rotary vessel relative to the cooperating surface and parallel to the axis of rotation. The filter assembly has a housing with main body and closure member separably attachable to the main body. The closure member retains the rotary vessel inside the housing and is separable from the main body to permit removal of the rotary vessel from the housing. A connector releasably couples the closure member to the rotary vessel such that the rotary vessel is removable from the housing by separating closure member and main body.

A liner for a filter sub-assembly has a wall having an innermost surface that bounds a cavity extending between opposing first and second ends of the liner. The wall has a deflected portion extending into the cavity and delimiting an opening. The liner may be used in a rotor of a filter assembly.