Cyclonic separator

摘要

A vacuum cleaner incorporating a cyclone separation device comprises a cylindrical cyclone chamber having a tubular side wall in the form of a filter. An auger is mounted within the chamber for rotation about the longitudinal axis thereof, the auger having a vane which extends along the chamber in a first helical direction. In use, the auger is rotated in a direction opposite to said helical direction so that separated dirt and dust is driven to a collection region at the bottom of the chamber and compacted. The collection region preferably expands during use to increase the capacity thereof. A vacuum cleaner in accordance with the invention has to be emptied less regularly and any risk of dust re-entrainment is reduced.

主权项

1. A cyclone separation apparatus for separating matter from a flow of fluid, the apparatus comprising:
a cylindrical cyclone chamber having a tubular side wall; an inlet disposed at a first end of the chamber for the fluid to be treated; a region disposed at the second end of the chamber for collecting matter separated from the fluid; an auger mounted within the chamber for rotation about the longitudinal axis thereof, the auger having a vane which extends both radially of the chamber and longitudinally of the chamber towards the second end thereof in a first helical direction; and means for rotating the auger about the longitudinal axis of the chamber in a direction opposite to said helical direction, wherein the cyclone chamber comprises an end wall at the second end thereof against which the separated matter collects, said end wall being moveable away from said auger to expand the volume of said region in which said collected matter is retained.