| 主权项 |
1. A surface cleaning apparatus comprising:
(a) an air flow passage extending from a dirty air inlet to a clean air outlet; (b) a suction motor positioned in the air flow passage; (c) a cyclone positioned in the air flow passage, the cyclone comprising a cyclone chamber defined by a first end, an opposed second end, a longitudinal axis and a sidewall extending longitudinally from the first end to the second end, the cyclone chamber having an air inlet at the first end, an air outlet, and a dirt outlet at the second end, wherein the dirt outlet has a variable length in the direction of the longitudinal axis; and, (d) a dirt collection chamber in flow communication with the dirt outlet. |
