639results about "Exhaust-air diffusion" patented technology

A fan motor apparatus of a vacuum cleaner having a diffuser unit is provided. The fan motor apparatus of a vacuum cleaner includes a fan motor unit into and from which an air stream is introduced and discharged in the same direction, and a diffuser unit having an air suction area to discharge an air stream to the fan motor unit through a fluid passage surface, the fluid passage surface through which an air stream is drawn in and discharged out of the diffuser. An air discharge area of the diffuser unit may receive the air stream discharged from the fan motor unit, and distribute and discharge the air stream through a perimeter of the air suction area of the fluid passage surface.

A motor, fan and dirt separating means arrangement for a vacuum cleaner, the arrangement comprising: a motor with a drive shaft; a fan coupled to the motor for generating air flow; and a dirt separating means located in a cleaning path of the air flow, the cleaning path being between a dirty air inlet and the fan, wherein the motor is located in a cooling path of the air flow, the cooling path being between a clean air inlet and the fan, wherein the air flow through the cleaning path is substantially greater than through the cooling path in normal operating conditions and wherein the cleaning path and the cooling path of the air flow combine substantially at the fan inlet. A vacuum cleaner comprising the motor, fan and dirt separating means arrangement.

A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan, wherein the cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port wherein the cyclones are arranged in a generally circular array about a central axis of the cyclonic separation apparatus; and a cooling air flow path, wherein the motor is nested within the generally circular array of cyclones and wherein the motor is located in the cooling air flow path. A vacuum cleaner comprising the motor, fan and cyclonic separation apparatus arrangement.

The present invention relates to a central vacuum power unit comprising in combination a canister, a chamber for collecting debris, a first plate, a second plate, a third plate, a duct, a motor-fan assembly, a filter, and a first baffle. The duct extends between the first and second plates and is in fluid flow communication with respective openings defined in the first and second plates. The sidewall of the canister, the first and the second plates and the duct defines an acoustic damping chamber covered with a lining of sound absorbing material.

A dust collection unit for a vacuum cleaner includes a dust collection container for collecting foreign objects contained in air introduced therein, covers defining a top and bottom of the dust collection container, and a filter-cleaning unit having a plurality of brushes rotating around the porous filter unit to remove the foreign objects clogging the outer surface of the porous filter unit.

A silencer for a vacuum cleaner is provided and includes at least one hermetic expansion chamber mounted in an exhaust channel of the vacuum cleaner and allowing an exhaust airflow from the vacuum cleaner to pass through. The expansion chamber at its two sides has an inlet and an outlet connected to the exhaust channel. A silencing board is mounted in the expansion chamber, separating the inlet from the outlet. Pores are distributed throughout in the silencing board. The silencer integrates several different silencing structures together, and, when mounted to the exhaust port of the vacuum cleaner, can considerably diminish the noise generated by the vacuum cleaner in operation.

A vacuum cleaner having a base with an inlet facing a surface, a handle connected to the base, an air passage connecting the base inlet to the handle, and a removable handheld unit. The handheld has an inlet nozzle, a dirt separator, a vacuum fan to generate a working airflow into the inlet nozzle and through the dirt separator, and a housing joining the handheld, the dirt separator and the vacuum fan. The vacuum has a docking latch with a first latch position in which the latch holds the handheld in an operating position on the handle, and a second position in which the latch permits removal of the handheld from the operating position. The vacuum also has a safety catch with a catch member on the handle and a second member on the handheld. The catch members resiliently hold the handheld unit on the handle in a partially-removed position.

A robotic vacuum cleaner is disclosed in the present invention, which comprises a controller, at least a driving wheel module, and a dust-collecting module. The controller is disposed on a housing plate. The driving wheel module, electrically connecting to the controller, further includes: a driver; a wheel connecting to the output shaft of the driver; a linkage rod, having two ends pivotally fixed on the housing plate and the driver respectively; and a resilience element, having two ends pivotally connected to the housing plate and the driver respectively. The dust-collecting module, disposed on the housing plate, is capable of vacuuming for filtering and collecting dust.

A cyclone dust-separating apparatus of a vacuum cleaner is disclosed. The cyclone dust-separating apparatus includes at least one cyclone having a cyclone body, which rotates air to separate dust or dirt therefrom, which has an air inflow part and an air discharging part, and which is installed in such a manner that a longitudinal axis thereof is substantially horizontally arranged, and a dust collecting unit to store the dust or dirt separated by the cyclone unit. The cyclone body is formed in a convex cylinder shape, so that a diameter thereof in the vicinity of an entrance of the air discharging part through which the air is discharged comes maximum.

A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of a suction nozzle and an above-the-floor cleaning tool. An exhaust filter housing includes a suction duct and an exhaust plenum, with the suction duct communicating with the chamber outlet. A suction source housing includes an open end communicating with the exhaust plenum and a closed end. A suction source is positioned within the suction source housing to define an annular exhaust flow passageway surrounding the suction source from the housing closed end to the housing open end. The suction source includes a suction inlet communicating with the suction duct and an exhaust outlet communicating with the housing closed end.

A product that includes a compressor, a housing and a vibration isolation mount located between the compressor and the housing. The compressor includes an impeller, a first inlet located upstream of the impeller, a first outlet located downstream of the impeller, a second inlet located downstream of the first outlet, and a second outlet located downstream of the second inlet. During operation, fluid enters the compressor via the first inlet and exits the compressor via the first outlet. The mount creates a restriction between the compressor and the housing that causes fluid exiting the first outlet to re-enter the compressor via the second inlet.