Method and a device for cleaning of crankcase gases coming...

Gas separation: processes – Deflecting – Centrifugal force

Reexamination Certificate

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C055S406000, C055SDIG019, C123S19800E, C060S311000

Reexamination Certificate

active

07052529

ABSTRACT:
In a vehicle adapted to be propelled by means of an internal combustion engine crankcase gases coming from the combustion engine are cleaned by means of a centrifugal separator. The rotor of the centrifugal separator is driven by means of pressurized air delivered by a compressor, e.g. a so called turbo compressor, which is driven by means of the combustion engine. During periods when the compressor delivers pressurized air in an insufficient amount and/or at insufficient pressure the rotor of the centrifugal separator is instead driven by means of pressurized air coming from a container containing so called auxiliary pressurized air. The auxiliary pressurized air may have a substantially larger pressure than the pressurized air normally delivered by the compressor. The combustion engine is used also for accomplishing the overpressure of the auxiliary pressurized air in the container.

REFERENCES:
patent: 5779618 (1998-07-01), Onodera et al.
patent: 2004/0159085 (2004-08-01), Carlsson et al.
patent: WO 99/56883 (1999-11-01), None

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