An oil separator for separating oil droplets and/or oil mist from gases, in particular from blow-by gases of an internal combustion engine is described.

A particle separating system for supplying a cam shaft phase adjuster with cleaned lubricating oil. The phase adjuster includes a stator, a rotor connectable to a cam shaft, and a control valve for hydraulically adjusting the rotational angular position of the rotor relative to the stator. The particle separating system includes an oil separator arranged in the flow of the lubricating oil, upstream of an oil gallery of an engine supplied with the lubricating oil, exhibiting a separation efficiency of at least 50% for particles having a size P1 and a separation efficiency of at least 90% at a size P2>P1; a particle separator arranged downstream of the oil separator and upstream of the phase adjuster or control valve, to clean the lubricating oil for the phase adjuster. The particle separator exhibits a separation efficiency of 50% at a size P3, where P1<P3<100 m.

A centrifuge system including a centrifuge housing having a cavity at least partially surrounded by an outer shell, a central shaft extending into at least a portion of the cavity, a rotary motion source for rotating the centrifuge housing, and a filter concentrically positioned about the central shaft. The filter includes a first layer adjacent to a second layer, wherein the first and second layers are wound into a roll about a central longitudinal opening. The first layer may include at least one contaminant retention layer and the second layer may include at least one flow defining layer.

Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.

A method for continuous purification of motor lubricant oil includes circulating lubricant oil between a motor lubricant oil tank and a motor; transporting contaminated lubricant oil from the motor lubricant oil tank in a cleaning loop. The transport in the cleaning loop includes adding at least one liquid separation aid to contaminated lubricant oil; supplying contaminated lubricant oil to a three-phase centrifugal separator; continuously separating contaminants from the lubricant oil in the separator and continuously discharging a first liquid phase including purified lubricant oil from a liquid light phase outlet of the separator, continuously discharging a second liquid phase including solid contaminants from a liquid heavy phase outlet of the separator and continuously discharging a sludge phase from a sludge outlet by the aid of a conveyor screw of the three-phase separator. The method further includes transporting the first liquid phase including purified oil back to the lubricant oil tank. The present invention further provides a system for carrying out the method.

A centrifugal filter assembly useful to remove lubricant from a mixed flow exiting a breather of a lubricated compressor. The centrifugal filter assembly can include a stack of filter discs disposed in a housing. The housing can have a threaded opening to be fastened to the breather. A center support including a central shaft and arms are used to mount the discs. The discs can include flow guide and gap setting features. Mixed air can enter an inner hub of the filter stack and then progress in the space between filter discs until exiting the stack at a radially outer location. The mixed air can be received into the inner hub after first passing through a bearing used to support the center support, but other routes into the inner hub are also contemplated.

A rotor-type apparatus for centrifugal cleaning of crankcase gases from a combustion engine. The rotor is hydraulically driven by pressurized oil by means of a turbine wheel located in an oil collection chamber. A pressure equalizing and gas discharging conduit, which extends into the collection chamber and has an upper aperture located above a liquid level of the oil in the collection chamber during the operation, is connected to an outlet conduit for the propellant oil from the collection chamber.

A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing. 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 comprises a radially-extending structure that axially blocks the flow of the fluid through the first axial end. The second axial end does not comprise any structure that axially blocks the flow of the fluid through the second axial end.

In an oil separator that separates mist oil contained in target gas from the gas, the present disclosure is aimed to easily mount the oil separator to various targets and to increase its versatility. An oil separator according to the present disclosure includes: a nozzle that injects oil from an injection hole to rotate a spindle around an axis; a housing having a gas communicating portion and an oil communicating portion on its bottom; and a joint member that is removably mounted to the housing, and that includes a gas introducing portion and an oil discharge portion, the gas introducing portion introducing blow-by gas and transferring the gas to the gas communicating portion, the oil discharge portion receiving oil from the oil communicating portion and discharging the oil to outside.

The invention relates to a centrifugal deaerator for an air/oil mixture of a turbomachine, comprising: an annular housing (10) for the centrifugal separation of said mixture, arranged around a hollow shaft (11); axial inlets (14) for the flow of said air/oil mixture into said housing (10); a pinion (20) for rotating said housing (10); and radial oil outlets (15) and oil-free air outlets (16), characterised in that it comprises a metal foam (50) housed in said housing (10) by partially extending along the axial direction (XX) so as to define two successive spaces, a foam-free space (51) and a foam-lined space (52), said foam-free space opening up towards said axial inlets. A device can be advantageously added to the hollow shaft in order to reduce the free-vortex phenomenon and to thereby significantly reduce the load losses of the deaerator.