Cyclone such as for use in a surface cleaning apparatus

摘要

A cyclone comprises a cyclone chamber having an air inlet, an air outlet, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, the first end wall has a vortex finder having a wall that meets the first end wall at a second juncture, wherein the inlet is spaced from the vortex finder.

主权项

1. A cyclone comprising a cyclone chamber having an air inlet, a vortex finder, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall and is located on the first end wall, the vortex finder is provided on the first end wall and has a wall that meets the first end wall at a second juncture, wherein the air inlet comprises an enclosed, curved passage provided inside the cyclone chamber, the passage comprising an outlet of the air inlet, the passage has a radial inner side and the radially inner side of the passage is spaced from the vortex finder by a radial offset distance whereby a portion of the cyclone chamber is located in the offset distance and the portion of the cyclone chamber has an absence of an air inlet introducing air directly into the portion, the sidewall having a diameter at an outlet end of the passage and the passage is located within the diameter.