Nozzle and filter-type dust collector
AssigneeTakuma Co., Ltd.
InventorSatoshi Yoshimoto
Life of this patent
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Abstract
There are provided a nozzle capable of enhancing the straight-advancing capability of jetted fluid to increase the back wash effect of a filter member, and a filter-type dust collector capable of effectively carrying out dust removal from a filter member with such a nozzle. To this end, the nozzle has a Laval nozzle section secured to the inside of an outer tube at its proximal end and a fluid guide section disposed at the leading end of the outer tube. The fluid guide section has a plurality of suction holes elongated in the flowing direction of the pressurized fluid. This nozzle is mounted on a pulse header tube of a dust removal device.
Claims9
A nozzle having a tubular fluid guide section disposed at the leading end of a Laval nozzle section having a convergent and then a divergent cross section in a flowing direction of a fluid,
- wherein an opening elongated in the flowing direction of the fluid is formed in a wall of the tubular fluid guide section.
A dust collector which has a filter member for collecting dust from exhaust gas to clean it and dust removal means for removing extraneous matter adhering to the surface of the filter member with a fluid jetted from a nozzle,
- wherein the nozzle has a Laval nozzle section having a convergent and then a divergent cross section in a flowing direction of a fluid and a tubular fluid guide section disposed at the leading end of the Laval nozzle section;
- and
- wherein the fluid guide section has an opening in a wall of the fluid guide section, said opening being elongated in the flowing direction of the fluid.
Dependencies are inferred from the claim text.