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US 2012/0067381 A1Published application
Nozzle arrangements and method for cleaning filter elements
AssigneeDonaldson Company, Inc.
InventorTHOMAS D. RAETHER
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Abstract
A method of cleaning a filter element includes directing a jet of pressurized gas from a nozzle onto a filter element, with the jet having a non-round cross-sectional shape that is a same general cross-sectional shape as the opening in a tube sheet holding the filter element. The nozzle has a channel for the pressurized gas that is obstruction-free.
Claims14
A method of cleaning a filter element;
- the method comprising:
- (a) directing a jet of pressurized gas from a nozzle onto a filter element;
- (i) the jet having a non-round cross-sectional shape that is a same general cross-sectional shape as an aperture in a tube sheet supporting the filter element;
- and
- (ii) the nozzle having a channel for the pressurized gas that is obstruction-free.
2 more elements
Dependencies are inferred from the claim text.