F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/27, 183/79
F02M 35/02 (2006.01) B01D 46/26 (2006.01) F02M 35/08 (2006.01)
Patent
CA 1191753
VORTEX AIR CLEANER AND SELF-CLEANING BARRIER FILTER ASSEMBLY FOR SUPERSHARGED ENGINES ABSTRACT OF THE DISCLOSURE A self-cleaning barrier filter assembly is provided for use in pressurized fluid systems from which a filter-unloading flow can be dumped, comprising, in combination, a filter housing having an upstream inlet for unfiltered fluid, a downstream outlet for filtered fluid and an upstream outlet for filter unloading dump flow; and disposed across the line of flow between the unfiltered upstream fluid inlet and downstream filtered fluid outlet a rotatable barrier filter cartridge, the barrier filter cartridge being made of material capable of withstanding an elevated operating temperature within the range from at least about 250°F to about 600°F, and being mounted in the assembly for rotation; means in the housing for rotating the barrier filter cartridge at a speed within the range from about 0. 05 to 5 revolutions per minute; and featuring as an important aspect of the invention, means in the housing upstream of the barrier filter cartridge in communication with an upstream surface of the barrier filter cartridge and defining, and restricting fluid flow into, a zone of differential fluid pressure in close proximity to a portion of the upstream barrier filter cartridge surface, for generating at the upstream barrier filter cartridge surface within the zone an outward backflow of pressurized fluid through the barrier filter cartridge from downstream thereof, entraining material collected on the upstream surface of the barrier filter cartridge and dumping such material via the means and the upstream dump flow outlet during rotation of the barrier filter cartridge.
422013
Gowling Lafleur Henderson Llp
Pall Corporation
LandOfFree
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