A centrifugal separator for cleaning gas containing liquid impurities includes a stationary casing, enclosing a separation space through which a gas flow is permitted. The stationary casing includes a surrounding side wall, a first end wall and a second end wall. An inlet extends through the stationary casing and permits supply of the gas to be cleaned. A rotating member includes a stack of separation disks rotatable around an axis of rotation. A drive member rotates the rotating member. A gas outlet permits discharge of cleaned gas, and includes an outlet opening through the side wall. A drainage outlet permits discharge of liquid impurities separated from the gas. The outlet opening is positioned opposite to the stack of separation disks.

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.

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.

A centrifugal separator for cleaning a gas containing liquid impurities includes a stationary casing, enclosing a separation space and a surrounding side wall, a first end wall and a second end wall. An inlet extends through the stationary casing and permits supply of the gas to be cleaned. A rotating member includes a stack of separation disks rotatable around an axis of rotation by means of a drive member. A gas outlet permits discharge of cleaned gas and comprises an outlet opening through the stationary casing and an upstream portion extending from the outlet opening. A drainage outlet permits discharge of liquid impurities separated from the gas. The drainage outlet is provided in the gas outlet downstream the upstream portion. The gas outlet conveys the liquid impurities to the drainage outlet.

A centrifugal separator for cleaning a gas containing liquid impurities includes a stationary casing, enclosing a separation space and a surrounding side wall, a first end wall and a second end wall. An inlet extends through the stationary casing and permits supply of the gas to be cleaned. A rotating member includes a stack of separation disks rotatable around an axis of rotation by means of a drive member. A gas outlet permits discharge of cleaned gas and comprises an outlet opening through the stationary casing and an upstream portion extending from the outlet opening. A drainage outlet permits discharge of liquid impurities separated from the gas. The drainage outlet is provided in the gas outlet downstream the upstream portion. The gas outlet conveys the liquid impurities to the drainage outlet.

The method for separation and selection of heavy and/or light molecules in a gas mixture through a device consisting of a cylinder, to the cylinder attached driving mechanism for bringing the cylinder into motion, a inside the cylinder firmly attached impeller, an inside the cylinder's center existing opening for passage of combustion gas, air, synth gas or another gas mixture, a to the opening connected armature involving an openable and closable outlet for carbon dioxide or oxygen or hydrogen or another selected separated gas that leads to a recipient, for example a compressor with a tank.

The method for separation and selection of heavy and/or light molecules in a gas mixture through a device consisting of a cylinder, to the cylinder attached driving mechanism for bringing the cylinder into motion, a inside the cylinder firmly attached impeller, an inside the cylinder's center existing opening for passage of combustion gas, air, synth gas or another gas mixture, a to the opening connected armature involving an openable and closable outlet for carbon dioxide or oxygen or hydrogen or another selected separated gas that leads to a recipient, for example a compressor with a tank.

A system for concentrating particles in an air stream includes an air channel having a first open end and a second open end. The air channel may be enclosed by a channel wall extending from at least the first open to the second open end. Two or more heater elements may be positioned between the first open end and the second open end. The heater elements may be positioned near a periphery of the air channel and cooperatively configured to force particles in the air stream away from the periphery and towards an interior region of the air channel. Particles in the air stream may be thermophoretically forced towards the interior region of the air channel when the heater elements are heated and thermal gradients emanating from the heater elements are generated.

A system for concentrating particles in an air stream includes an air channel having a first open end and a second open end. The air channel may be enclosed by a channel wall extending from at least the first open to the second open end. Two or more heater elements may be positioned between the first open end and the second open end. The heater elements may be positioned near a periphery of the air channel and cooperatively configured to force particles in the air stream away from the periphery and towards an interior region of the air channel. Particles in the air stream may be thermophoretically forced towards the interior region of the air channel when the heater elements are heated and thermal gradients emanating from the heater elements are generated.

A housing for a centrifugal separator is disclosed, wherein the centrifugal separator is configured to separate a liquid phase from crankcase gases of an internal combustion engine using a rotor. The housing includes a housing body forming a separation chamber, an opening in the housing body, a bearing retainer arranged at the opening, and a bearing inserted into the bearing retainer. The bearing is configured to receive a rotor shaft extending into the separation chamber. The bearing retainer includes a bearing seat portion provided with a number of plastically deformed zones retaining the bearing in the bearing retainer. A centrifugal separator and a method of retaining a bearing of a rotor shaft in a housing for a centrifugal separator are also disclosed.