Gas separation: processes – Deflecting – Centrifugal force
Reexamination Certificate
2006-05-30
2006-05-30
Hopkins, Robert A. (Department: 1724)
Gas separation: processes
Deflecting
Centrifugal force
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
Franzen Peter
Hällgren Ingvar
Larsson Leif
Alfa Laval Corporate AB
Hopkins Robert A.
Michaud-Duffy Group LLP
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