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US 2004/0103784 A1Published application
Sand/dust filtering system
AssigneeAir Engineers, Inc.
InventorGaylon W. Birdwell
Life of this patent
Estimating the term…
Abstract
A system for removing substantially all particular material from an air flow through a passage provides the air flow passage with an area of enlarged circumference containing a coaxially mounted cyclone fan and stationary vanes. The cyclone fan includes a motor driving a cage provided with a plurality of vanes. The stationary vanes are shaped similar to like vanes on the cyclone fan, but are turned in the reverse direction.
Claims8
A system for removing particulate material from an air stream, comprising:
- an air flow passage having an inlet end, an outlet end, an annular opening intermediate said ends and an enlarged housing enclosing said opening and providing an particle exit;
- cyclone fin means mounted coaxially within said enlarged area, said cyclone fan having a motor driving a plurality of blades;
- a plurality of stationary vanes fixedly mounted on said air passageway coaxially a round said opening;
- and
- means for releasing collected particulate material from said system.
2 more elements
A method for removing particulate material from an air stream, comprising the steps of providing:
- an air flow passage having an inlet end, an outlet end, an annular opening intermediate said ends and an enlarged housing enclosing said opening and providing an particle exit, cyclone fan means mounted coaxially within said enlarged area, said cyclone fin having a motor driving a plurality of blades, a plurality of stationary vanes fixedly mounted on said air passageway coaxially a round said opening;
- passing air through said air passageway;
- imparting a whirling motion to said air with said cyclone fan imparting to said particles centrifugal forces propelling them radially outwardly between said vanes to impinge upon said enlarged housing an rebound to said exit, said vanes preventing said particles from reentering said air stream.
Dependencies are inferred from the claim text.