Apparatus and method for separating particles from a cyclonic fluid flow
First Claim
Patent Images
1. A separator for separating entrained particles from a fluid flow, the separator comprising:
- a) a cyclone chamber having a cyclonic flow region and a closed bottom, the cyclonic flow region having a center, a longitudinal axis, an outer peripheral portion, an inner portion and a radial width;
b) a fluid inlet for introducing a cyclonic fluid flow to the cyclonic flow region;
c) a fluid outlet for removing the fluid flow from the cyclone flow region;
d) a plurality of vanes positioned adjacent the bottom and extending inwardly towards the center, the vanes having an inner portion and an outer portion and creating a dead space immediately above the bottom; and
, e) a cover member spaced from the bottom and positioned above the vanes.
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Abstract
An anti-reentrainment device is provided for use with a cyclone separator. The anti-reentrainment device has a plurality of vane upwardly extending members positioned in the bottom of a cyclone chamber and extending radially inwardly across the bottom. The vanes separate the bottom of the cyclone from the cyclonic fluid flow portion, thereby creating a reduced flow region above deposited particles settling on the bottom of the cyclone. The device impedes the cyclonic flow from reentraining the deposited particles.
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Citations
30 Claims
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1. A separator for separating entrained particles from a fluid flow, the separator comprising:
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a) a cyclone chamber having a cyclonic flow region and a closed bottom, the cyclonic flow region having a center, a longitudinal axis, an outer peripheral portion, an inner portion and a radial width;
b) a fluid inlet for introducing a cyclonic fluid flow to the cyclonic flow region;
c) a fluid outlet for removing the fluid flow from the cyclone flow region;
d) a plurality of vanes positioned adjacent the bottom and extending inwardly towards the center, the vanes having an inner portion and an outer portion and creating a dead space immediately above the bottom; and
,e) a cover member spaced from the bottom and positioned above the vanes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
(a) a cleaner head adapted for movement over a floor and having a fluid nozzle positionable adjacent the floor, the nozzle in fluid flow communication via a passageway with the separator fluid inlet;
(b) a handle for moving the cleaner head over the floor; and
,(c) a casing for housing the cyclone chamber.
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15. The separator of claim 14 further comprising a center feed pipe, the vanes extend to the center feed pipe and the cover member extends outwardly from the center feed pipe, the cover member having a radial width that is from 25-75% of the radial length of the vanes.
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16. A separator for separating entrained particles from a fluid flow, the separator comprising:
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a) a cyclone chamber having a cyclonic flow region, the cyclonic flow region having a center, a longitudinal axis, an outer peripheral portion, an inner portion and a radial width;
b) means for introducing a fluid flow to the cyclone flow region for cyclonic rotation therein;
c) means for removing the fluid flow from the cyclonic flow region;
d) particles receiving means disposed beneath the cyclonic flow region for receiving particles separated from the fluid flow and having a sealed bottom;
e) separation means for creating non-rotational flow regions positioned beneath the cyclonic flow region and which are open to communication with the cyclonic flow region. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for separating entrained particles from a fluid flow, the method comprising the steps of:
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(a) introducing a fluid to flow cyclonically in a chamber having a cyclonic flow region, the cyclonic flow region having an inner portion and an outer portion;
(b) removing particles from the fluid flow in the cyclone chamber and retaining the separated particles in a plurality of areas provided beneath the outer portion of the cyclonic flow region, each of the areas having an upper portion which is open to be in flow communication with the cyclonic flow region; and
,(c) removing the fluid flow from the chamber. - View Dependent Claims (28, 29, 30)
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Specification