Air flow passage for a cyclonic separator and vacuum cleaner having same
First Claim
1. A fluid conduit in an air flow passage of a vacuum cleaner extending from point S1 to point S2 and comprising a space curve around which the fluid conduit is formed wherein the gradient of the space curve has at least two non-zero components which vary along the arc length of the curve.
3 Assignments
0 Petitions
Accused Products
Abstract
A cyclonic separation device is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is located and configured to extend longitudinally through a central portion of the cyclone, whereby the sharp bending of the conduit may be reduced, thereby reducing pressure losses in the device, without unduly interfering with the cyclonic flow within the cyclone. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators. The cyclonic separation device may be incorporated in a vacuum cleaner such as an upright vacuum cleaner. A three dimensional conduit which is optionally used with a cyclonic separator is provided.
45 Citations
5 Claims
- 1. A fluid conduit in an air flow passage of a vacuum cleaner extending from point S1 to point S2 and comprising a space curve around which the fluid conduit is formed wherein the gradient of the space curve has at least two non-zero components which vary along the arc length of the curve.
Specification