Abstract: In a centrifugal separator, the rotor of which is adapted to be driven by means of a gaseous driving fluid, the rotor itself supports a ring of turbine blades extending around the rotational axis of the rotor. A stationary nozzle is adapted to direct a flow of the driving fluid towards the ring of turbine members. After the driving fluid has passed between the turbine blades and has influenced them for driving of the centrifugal rotor, it enters a reversing chamber formed by a stationary reversing member. In the reversing chamber the driving fluid is caused to change its direction and is then conducted again towards the ring of turbine members in order to be utilized a second time for driving of the centrifugal rotor.

Abstract: A centrifugal separator has a centrifugal rotor that is rotatable about a vertical axis and has both a rotor body for separation of two liquids, having different densities, and a pumping member that is designed to pump via the outside of a conical body a mixture of said two liquids into the rotor body from a surface layer of a liquid body situated below the rotor body.

Abstract: In connection with cleaning of gas from particles suspended therein and being heavier than the gas the gas is caused to rotate in a chamber delimited in a stationary housing, so that the particles by centrifugal force are separated from the gas and are thrown towards a stationary housing. The rotation of the gas is accomplished by means of a rotor, which includes a stack of conical separation discs arranged coaxially with each other and concentrically with the rotational axis of the rotor. The gas to be cleaned is caused to flow through interspaces between the separation discs, while they are rotating, the particles by the centrifugal force being brought into contact with the insides of the separation discs. In contact with the insides of the separation discs the particles first move along the generatrices of the separation discs and then move along inclined guiding members, which are arranged in contact with said insides.

Abstract: Gases produced by a combustion engine, e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor, by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine.

Abstract: In a centrifugal separator, the rotor (19) of which is adapted to be driven by means of a gaseous driving fluid, the rotor itself supports a ring of turbine blades (34) extending around the rotational axis (R) of the rotor. A stationary nozzle (40) is adapted to direct a flow of the driving fluid towards the ring of turbine members (34). After the driving fluid has passed between the turbine blades (34) and has influenced them for driving of the centrifugal rotor, it enters a reversing chamber (41) formed by a stationary reversing member (42). In the reversing chamber the driving fluid is caused to change its direction and is then conducted again towards the ring of turbine members (34) in order to be utilized a second time for driving of the centrifugal rotor.

Abstract: Gases produced by a combustion engine (1), e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor (R), by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor (R) is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine (1).

Abstract: Gases produced by a combustion engine (1), e.g. crankcase gases, are conducted through a separation chamber formed and surrounded by a centrifugal rotor (R), by means of which the gases are caused to rotate, so that particles suspended in the gases are separated by means of centrifugal force. The centrifugal rotor (R) is caused to rotate by means of a pressure fluid that is generated by means of the combustion engine (1).

Abstract: The invention is an entrainment device for a centrifugal separator. The entrainment device is comprised of two axial delimiting surfaces. One axial delimiting surface turns axially towards and the other turns axially away form an inlet chamber outlet of the separator. The entrainment device permits extended periods of operation without clogging of inlet chamber.

Abstract: A sealing device (4) is provided for sealing between a first member (1) and a second member (2) and comprises a first sealing element (10), provided on the first member and extending thereabout towards the second member, and a second sealing element (20), provided on the second member and extending towards the first member without direct contact with the first sealing element (10). The first sealing element (10) comprises a first flange member (12) extending towards the first member (1) forming a first chamber (13) and the second sealing element (20) comprises a second flange member (22) extending towards the second member (2) and forming a second chamber (23). The flange members (12, 22) are provided overlapping each other in such a manner that the first flange member (12) extends in the second chamber (23) and the second flange member (22) extends in the first chamber (13).

Abstract: In a centrifugal rotor there is an inlet chamber (7), a separation chamber (8) and an outlet chamber (10), which chambers are coupled in series. A stationary outlet member (16) is arranged to remove from a predetermined level in the outlet chamber (10) separated liquid during normal operation of the centrifugal rotor. For internal cleaning of the centrifugal rotor there is arranged within the outlet chamber (10) inside said predetermined radial level a preferably stationary reconducting member (26) that is dimensioned to accomplish a recirculation flow of cleaning liquid through said chambers (7, 8, 10) in the centrifugal rotor, which circulation flow is substantially larger than the flow of liquid which during normal operation of the centrifugal rotor passes through these chambers.

Abstract: An outlet device for discharging liquid from a chamber (16) in a centrifugal rotor, that is rotatable around a rotational axis (12), comprises an outlet member (29). This outlet member is turnable around a turning axis (26) in parallel with said rotational axis (12) and is held by a spring (31) pressed radially outwardly in the chamber (16) against and partly into a liquid body rotating with the centrifugal rotor. The outlet member (29), which further forms an outlet channel (34) and an inlet opening (30) communicating therewith, is shaped such that the inlet opening (30) is situated downstream of said turning axis (26) during operation of the centrifugal rotor.

Abstract: Centrifugal separator comprising a rotor, which forms an inlet and an outlet chamber (17) surrounding the rotational axis, in which a liquid present therein rotates around the rotational axis with a radially inwardly directed free cylindrical liquid surface. A stationary discharge device (21) extends in the outlet chamber (17) from the rotating liquid body radially inwardly to a central outlet (25) and forms a flow channel (26) with an inlet opening (23).

Abstract: A centrifugal separator to clean a liquid from a substance having a lower density than the liquid comprises a rotor forming a separation chamber (6), in which a stack of conical separation discs (15) is arranged. Liquid and substance dispersed therein flow radially outwards in interspaces between the discs. To increase the separation capability upon a high flow through the separator, the separation discs (15) have a radial inner zone (29a), which has no obstacles for primary flow in the circumferential direction and a radial outer zone (28a), which has so many equally around the rotational axis distributed elongated and through the outer zone (28a) extending obstacles (27a) for liquid flow in circumferential direction that the primary flow in this zone (28a) takes place radially outwards between the obstacles (27a).

Abstract: In order to free a liquid form a substance dispersed therein and having a larger density than the liquid a centrifuge rotor is used having a stack of conical separation discs. Elongated spacing members (11a, 11b) in the spaces between the separation discs are formed such that the liquid flow in the disc interspaces is conducted in a certain way. Thus, the main part of the liquid is conducted in flow paths (12a, 12b), each of which has a direction with one radial component and one component turned against the rotational direction of the rotor.

Abstract: In order to free a liquid form a substance dispersed therein and having a larger density than the liquid a centrifuge rotor is used having a stack of conical separation discs. Elongated spacing members (11a, 11b) in the spaces between the separation discs are formed such that the liquid flow in the disc interspaces is conducted in a certain way. Thus, the main part of the liquid is conducted in flow paths (12a, 12b), each of which has a direction with one radial component and one component turned against the rotational direction of the rotor.

Abstract: Centrifugal separator comprising a rotor which inside itself forms an inlet chamber (16), a separation chamber (5) and an outlet chamber (12). The outlet chamber (12) is connected to the separation chamber (5) via a passage (13) through which a liquid separated during operation flows into the outlet chamber (12) and in the same forms a rotating liquid body with a radially inwardly directed free liquid surface (14). The outlet chamber is provided with an outlet (19), which is located radially outside the free liquid surface (14). In the outlet chamber (12) at least two wall elements (22) are arranged fixedly connected to the rotor and arranged to form a channel between themselves in order to during operation entrain the separated liquid into the rotation of the rotor and at the same time admit flow of the same radially outwardly in the outlet chamber (12).

Abstract: A centrifugal separator has a rotor, which forms an inlet chamber, a separation chamber (5) and an outlet chamber (10), in which a liquid, separated during operation, forms a rotating liquid body with a radially inwardly directed free liquid surface. A stationary discharge device (17) is provided together with rods 20 which are arranged to entrain, during the operation of the rotor, the liquid present in the outlet chamber (10) and to admit flow of such liquid radially outwardly to an inlet (19) in the discharge device (17). The rods are distributed around the rotational axis and rotate with the rotor and form flow spaces which extend axially, radially and in the circumferential direction. They entrain the liquid in the outlet chamber (10) efficiently and to admit flow of the liquid radially outwardly to the inlet (19) with reduced risk of air admixture. A wing extending radially and axially in the outlet chamber may also be provided.

Abstract: Centrifugal separator comprising a rotor, which forms an inlet for the liquid which is to be centrifugally treated and an outlet chamber (17) for a liquid separated in the rotor, the outlet chamber (17) surrounding the rotational axis and being so designed that liquid present in the outlet chamber during operation rotates around the rotational axis and has a radially inward facing circular free liquid surface at a certain radial level in the rotor. A stationary discharge device ( 21 ) extends in the outlet chamber (17) from the liquid body radially inward to a central outlet (25) and in the area of the free liquid surface it forms an inlet opening (23), which is directed toward the rotational direction of the liquid body and partly is located in the liquid body, the discharge device also forming a flow channel (28), which connects the inlet opening (23) to the central outlet.

Abstract: A centrifugal separator of the type including a rotor, which is supported by a driving shaft and which forms a separation chamber and an inlet chamber. The inlet chamber being delimited by a dividing wall. An inlet tube extends axially through the dividing wall at one axial end of the inlet chamber at which the inlet channel in the tube opens. In the inlet chamber there is arranged a number of separating discs. A central part of the inlet chamber is connected to an outside space through an evacuating channel. In order to efficiently and gently separate a supplied liquid mixture without demanding a large space in the centrifugal separator, the inlet device is provided with a baffle which, between the opening of the inlet channel and the discs, extends from the rotational axis of the rotor and delimits a liquid filled inlet space. The liquid in the inlet space flowing during operation from the inlet channel radially outwards into the liquid body.

Abstract: Centrifugal separator having a discharge device for the transformation of kinetic energy of a liquid rotating in a chamber around a rotational axis to pressure energy. The device comprises an element for the discharge of liquid out of the chamber, which element has a surface (20) surrounding the rotational axis arranged to be so located in the rotating liquid body that liquid flows in a predetermined direction along and in contact with the surface (20). The discharge element forms at least one outlet channel (21), which has an inlet opening (22) located in said surface (20) and which from this inlet opening (22) extends in the flow direction. Seen in the flow direction the inlet opening (22) is delimited by two opposite side edges (23, 24) and a cross edge (25) located downstream of the side edges.