Abstract: A centrifugal separator for separating oil from a gas stream, particularly for venting the crankcase of an internal combustion engine, having a housing (2) in which the flow guiding means are arranged. The flow guiding means are connected to a drive shaft (3). A gas inlet (5) opens into the housing (2), and a gas outlet (6) and an oil outlet (7) lead out of the housing (2). An easily produced and functionally reliable arrangement is obtained if the housing (2) is non-rotatably mounted and an impeller (14) with blades (11) that produce a centrifugal flow is disposed in the housing (2) such that it is rotatable about the longitudinal axis (4) of the drive shaft (3).

Abstract: A cyclone arrangement for separating particles or droplets from a fluid stream, including at least two cyclones (1, 2, 3; 21, 22, 23), which have a tangential intake opening (4, 5, 6; 24, 25) for the fluid stream and set the fluid stream into rotation so that due to the resulting centrifugal force, particles or droplets to be separated from the fluid stream may be discharged from the cyclone separator through discharge openings (10, 11, 12). A plurality of cyclones are connected in parallel, and the intake openings (4, 5, 6) of the cyclones are closed or opened by a common slider (17; 24), which also has an opening (15, 16, 17; 24, 25) in the vicinity of each cyclone intake opening for passage of the fluid stream. The position and size of each slider opening is designed such that in various slider settings, the fluid stream will reach a different number of cyclone intake openings.

Abstract: An inertial separator (10) for removing droplets from a gas stream. The inertial separator (10) has a housing (18) which is provided with an inlet (11) for untreated gas and an outlet (12) for treated gas. In the housing (18) are first and second separation lamellae (13), with at least two first separation lamellae (13) being linearly arranged next to one another and separated by an interval A. The separation lamellae (13) each have a concave side (14) and a convex side (15). The first separation lamellae (13) are arranged parallel to the second separation lamellae (13) with the concave sides (14) of the separation lamellae (13) facing one another. The lowest region of the concave side (14) of the first separation lamellae (13) is situated opposite the interval A between the second separation lamellae (13). Viewed in the direction of flow, a drainage slope (16) which extends obliquely to the separation lamellae (13) is arranged on the second separation lamellae (13).

Abstract: The invention relates in particular to a ventilation device for a crankcase of an internal combustion engine. Said device comprises a centrifugal oil separator, which has an inlet for an oil-air mixture, an air vent for the purified air and an oil outlet for the oil. To improve the operating efficiency of a ventilation device of this type, the centrifugal oil separator is configured as a disk separator.

Abstract: The invention relates to an intake system for an internal combustion engine of a motor vehicle for separating entrained water droplets. The intake system has an untreated air intake (10), an untreated air pipe (11) connected to said untreated air intake (10), and a water separator (12) adjoining said untreated air pipe (11). Inside the untreated air pipe (11) a swirl is produced to cause the aspirated air to rotate inside the untreated air pipe (11). The untreated air pipe (11) communicates with the internal combustion engine. The water separator (12) has an inner pipe (13) and an outer pipe (14), which are arranged coaxially to one another. The inner pipe (13) protrudes into the outer pipe (14), which is provided with a water outlet (20). Due to the coaxial construction of the water separator (12), the intake air flows into the downstream components without being diverted, so that no appreciable pressure losses are caused.

Abstract: An inertial separator (10) for removing droplets from a gas stream. The inertial separator (10) has a housing (18) which is provided with an inlet (11) for untreated gas and an outlet (12) for treated gas. In the housing (18) are first and second separation lamellae (13), with at least two first separation lamellae (13) being linearly arranged next to one another and separated by an interval A. The separation lamellae (13) each have a concave side (14) and a convex side (15). The first separation lamellae (13) are arranged parallel to the second separation lamellae (13) with the concave sides (14) of the separation lamellae (13) facing one another. The lowest region of the concave side (14) of the first separation lamellae (13) is situated opposite the interval A between the second separation lamellae (13). Viewed in the direction of flow, a drainage slope (16) which extends obliquely to the separation lamellae (13) is arranged on the second separation lamellae (13).

Abstract: A centrifuge for cleaning the lubricating oil of an internal combustion engine, which simultaneously cleans the crankcase gases in which the separation result is improved by introducing crankcase gases (dashed arrows) directly, without any shielding baffles, into the oil mist generated by the drive nozzles in the centrifuge housing in order to produce a scrubbing effect, so that the crankcase gases are precleaned. For additional cleaning, guide vanes mounted on the rotor swirl the crankcase gas so that further residues are deposited along the walls of the housing, thereby making further measures to clean the crankcase gases unnecessary, with the result that the apparatus highly economical since it saves both material costs and maintenance costs.

Abstract: The invention relates to an intake system for an internal combustion engine of a motor vehicle for separating entrained water droplets. The intake system has an untreated air intake (10), an untreated air pipe (11) connected to said untreated air intake (10), and a water separator (12) adjoining said untreated air pipe (11). Inside the untreated air pipe (11) a swirl is produced to cause the aspirated air to rotate inside the untreated air pipe (11). The untreated air pipe (11) communicates with the internal combustion engine. The water separator (12) has an inner pipe (13) and an outer pipe (14), which are arranged coaxially to one another. The inner pipe (13) protrudes into the outer pipe (14), which is provided with a water outlet (20). Due to the coaxial construction of the water separator (12), the intake air flows into the downstream components without being diverted, so that no appreciable pressure losses are caused.