The disclosure discloses a cyclonic separating apparatus and a cleaning appliance. The cyclonic separating apparatus includes a downstream cyclonic separating assembly which includes at least one cyclonic separator ring including a plurality of cyclonic separators. Each of the cyclonic separators includes a cyclonic separating drum having an upper side edge communicating with a tangential air duct and a curved duct arranged in an upper portion of the cyclonic separating drum and communicating with the tangential air duct. A spiral rise angle of the curved duct is greater than a half cone angle of an inverted cone drum of the cyclonic separating drum.

A cleaner includes: a main body for separating dust from air suctioned through an opening; a suction motor generating suction force; and a suction part coupled to the opening part and having a connection pipe for guiding the air to the main body. The main body includes a suction guide coupled to one side of the connection pipe including a guide duct having a rotatable flap provided thereto. The suction guide is connected to the guide duct. A suction duct includes: a first surface, where the flap is installed; and a second surface facing the first surface. A second extension line of the second surface forms a first angle with a first extension line of one surface, of the suction guide, connected to the second surface. The first extension line and a third extension line of the flap form a second angle equivalent to or smaller than the first angle.

A surface cleaning apparatus has a cyclone chamber and a dirt collection chamber. The cyclone chamber has a sidewall extending from a first end to an axially opposed second end. At least a portion of the dirt collection chamber is aligned with first end of the cyclone chamber and radially outwardly of a solid portion of the vortex finder.

A vacuum cleaner includes a dirt separating and collecting system. The dirt separating and collecting system can include an air-permeable filter material, and a helical inlet guide. Dirt entering the helical inlet guide within a working airstream is visible to the user through an at least partially transparent housing.

A central vacuum wherein said central vacuum comprises a housing with a portion of said housing comprising a motor housing, a filter housing and a dust collecting bin. A motor, power source, foam filter a dust collecting bin are incorporated within the filer housing.

The housing further compromising an exhaust outlet, and at least two optional intake ports adapted to receive an intake hose. The first intake port is adapted such that the air and debris received from an intake hose is channeled into the filter where it passes through the filter, trapping dust and debris in the filter. The second intake port is adapted such that the air and debris received from an intake hose is channeled directly into a bag adapter and the air and debris is channeled into a vacuum filter bag, trapping the dust and debris in the bag. With either intake port, the air to flows through the filter or filter bag into the housing, where the air is exhausted through the exhaust outlet.

The intake ports further comprise a seal, such that when an intake port is not in use it can be sealed and prevent the escape of any airflow, dust and debris through the intake port.

A vacuum cleaner comprising a dirty air intake and a cyclonic separating apparatus connected in series. The cyclonic separating apparatus comprises a plurality of cyclonic separators connected in parallel. The vacuum cleaner further comprises a bleed valve provided upstream of the plurality of cyclonic separators. The bleed valve opens to admit bled air into the plurality of cyclonic separators in response to a drop in pressure in the vacuum cleaner. The bleed valve is also connected to the inlets of the plurality of cyclonic separators via a common plenum.

An upright surface cleaning apparatus may include a surface cleaning head, a flexible conduit section and an upper section movably mounted to the cleaning head. The upper section may include an air treatment member positioned in the air flow passage between the dirty air inlet and the clean air outlet, The surface cleaning apparatus may also include a suction motor positioned in the air flow passage. The upper section may also include an upflow conduit positioned in the air flow passage between the flexible conduit section and the air treatment member. When the upper section is in the upright position, the flexible conduit may include a portion that extends downwardly to a downstream end of the flexible conduit and the upflow conduit may extend upwardly from an upstream end of the upflow conduit to a downstream end of the upflow conduit.

There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

A vacuum cleaner including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes an outer case forming a side appearance of the dust collector; a first cyclone provided within an outer case to filter dust and foreign matter from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and an upper cover mounted on a top of the outer case to cover the first and second cyclones and having an intake guide configured to introduce air into the outer case and an exhaust guide configured to discharge air from which fine dust is separated by the second cyclone.

A vacuum cleaner, including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotatable shell provided at a lower side of the first cyclone so as to define a first storage section configured to collect foreign matter and dust filtered by the first cyclone between the rotatable shell and the outer case, and wherein the rotatable shell includes a skirt that extends downward and outward from an upper portion of the rotatable shell.