Abstract:
A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates and draws the working air through an opening and directs the working air radially outwardly toward the first wall and then through an annular passage formed between the first wall and the second wall. The annular passage restricts the flow of working air to provide back pressure on the impeller.
Abstract:
The invention concerns a suction device comprising a casing (2, 5) provided with at least one suction opening (3) and at least a delivery opening (4), containing an electric motor whereof the rotor (10, 11) is associated with means (13) for generating an air flow from the suction opening (3) to the delivery opening (4). The invention is characterised in that the suction device comprises a bowl (10) whereof the inner surface bears a pivot pin (9) coaxial with its axis of revolution, mounted in a bearing (6) located in the stator (7) centre and whereof the outer surface bears helical turbine blades (13) extending between said casing (2, 5) suction (3) and delivery (4) openings. The bowl (10) edge encloses the engine stator (7) and bears a plurality of permanent magnets (11) with radial magnetisation distributed at an angle, forming the engine rotor.
Abstract:
The invention relates to a high-speed electric motor (2) with a rotor (3), a stator (4) and an impeller (6) fastened to a rotor shaft (5), wherein due to a diversion, the motor cool air fed through the impeller (6) flows partially through the motor (2) and partially externally on a substantially cylindrical motor housing (7). Diversion is achieved by a diffuser (45) working together with a fan casing (50), and the diffuser (45) has a diffuser plate (51) on which return blades (48) turned towards a motor space (46) are constructed. A substantially annular outlet (43) for conveying cool air externally on the motor housing (7) is associated with the diffuser (45). To provide an improved, high-speed electric motor of said type, it is proposed that the width (h3) of the outlet (43) is approximately 50 to 70 % of a vertical distance (h4) (when measured parallel to the rotor shaft (5)) of the diffuser plate (51) from the outlet (43).
Abstract:
A suction cleaner comprises a primary cleaner (1) and an auxiliary cleaner (2). The primary cleaner (1) includes a fan (11) for sucking in air, and an air channel (6, 7, 9) disposed upstream of the fan for directing sucked air through the primary cleaner. The auxiliary cleaner (2) includes a dust collection chamber (20) and is attachable to the primary cleaner (1) with the dust collection chamber connected to the air channel (6, 7, 9) such that, in use, dust within the dust collection chamber is drawn into the air channel for collection.
Abstract:
A vacuum cleaner blower (1) with a blower wheel (7) and a motor (2) arranged for rotating the blower wheel (7) abuts its axis of symmetry (13), and a diffuser (8) extending radially beyond the outer periphery of the blower wheel (7), and wherein the diffuser (8) has guide surfaces (17, 18) which form diffusion flow passages (14) that define the flow direction for the air conveyed through the diffuser (8) from the blower wheel (7), said flow direction being anywhere in the diffuser flow passage (14) definable by velocity components in radial, axial and tangential directions, respectively, relative to the axis of rotation (13) of the blower (7). The diffuser flow passages (14) according to the invention formed by the guide surfaces (17, 18) being so provided that they convey the flow of air in such a manner that the velocity component of the flow in the axial direction relative to the velocity component of the flow in the radial direction is higher at the outlet opening of the diffuser flow (14) than at the inlet opening, makes it possible in case of given installation dimensions to design an efficient diffuser while simultaneously providing the blower wheel with a relatively large outer periphery.
Abstract:
A vacuum cleaner includes a suction fan driven by an electric motor, a suction nozzle connected to the intake side of the fan via a dust container, and a flex means provided for the electric power supply of motor. The motor is electronically controlled and adapted to be driven at a speed such that the suction fan operates at a speed of at least 50.000 rpm. The suction fan comprises a fan impeller of the turbo fan type.
Abstract:
The suction apparatus includes a housing (10) having an inlet chamber (21), a suction inlet (13) and a plurality of suction motors (17) each having an impeller housing (18) and an exhaust port (23A) wherein each suction motor is located about the suction inlet and substantially opposed to each other in plan wherein each impeller housing is located within or adjacent to said inlet chamber and each exhaust port vents exteriorly of said inlet chamber.
Abstract:
Disclosed herein, in certain embodiments, are vacuum-based systems, products, devices, and methods for de-odorizing, disinfecting, or cleaning articles such as clothing, shoes, toys, or dishes. A system or device can comprise a vacuum chamber comprising an housing defining an internal space having an internal pressure and an opening; a vacuum lid adapted to engage with the opening of the vacuum chamber; and a vacuum source connected to the vacuum chamber, wherein operation of the vacuum source reduces the internal pressure of the internal space of the vacuum chamber, wherein the lower internal pressure enhances the vaporization and removal of odors located on one or more articles disposed within the vacuum chamber.