Surface cleaning apparatus
First Claim
Patent Images
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 chamber comprising a first end, an opposed second end, a longitudinal axis, a sidewall, an air inlet at the first end, an air outlet, and a dirt outlet at the second end, the dirt outlet having an outlet length in the longitudinal direction;
(d) a dirt collection chamber in flow communication with the dirt outlet; and
,(e) a barrier wall positioned in the dirt collection chamber or a passage communication with the dirt collection chamber, the barrier wall having a first face that faces and is spaced from the dirt outlet and an opposed face that is spaced from and faces a wall of the passage or the dirt collection chamber in which the barrier wall is positioned, and wherein the barrier wall has a barrier length in the longitudinal direction that is larger than the outlet length.
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Abstract
A surface cleaning apparatus is provided wherein a uniflow cyclone comprises a cyclone chamber defined by a longitudinal axis, the cyclone chamber having a dirt outlet that has a variable length in the direction of the longitudinal axis. A cyclone chamber having a barrier wall facing the dirt outlet of the cyclone chamber is also provided.
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Citations
21 Claims
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1. A surface cleaning apparatus comprising:
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(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 chamber comprising a first end, an opposed second end, a longitudinal axis, a sidewall, an air inlet at the first end, an air outlet, and a dirt outlet at the second end, the dirt outlet having an outlet length in the longitudinal direction; (d) a dirt collection chamber in flow communication with the dirt outlet; and
,(e) a barrier wall positioned in the dirt collection chamber or a passage communication with the dirt collection chamber, the barrier wall having a first face that faces and is spaced from the dirt outlet and an opposed face that is spaced from and faces a wall of the passage or the dirt collection chamber in which the barrier wall is positioned, and wherein the barrier wall has a barrier length in the longitudinal direction that is larger than the outlet length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surface cleaning apparatus comprising:
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(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 chamber comprising a first end, an opposed second end, a longitudinal axis, a cyclone chamber sidewall, an air inlet at the first end, an air outlet, and a dirt outlet at the second end; (d) a dirt collection chamber comprising a first end wall, a second end wall longitudinally spaced apart from the first end wall and a dirt collection chamber side wall, and being in flow communication with the dirt outlet; and
,(e) a barrier wall extending from at least one of the first end wall and the second end wall of the dirt collection chamber, the barrier wall having a first face that faces and is spaced from the dirt outlet and an opposed face that is spaced from and faces a wall of the dirt collection chamber or a passage in communication with the dirt collection chamber in which the barrier wall is positioned. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification