A fan assembly includes an internal housing having an outer internal housing, and an inner internal housing partially disposed within the outer internal housing. The inner internal housing defines an internal cavity, and has a curved exterior surface. Stator blades extend between the inner internal housing and the outer internal housing.

An air pump assembly (100) for an inflatable product (10) having an interior (12) is provided. The air pump assembly (100) may comprise a housing (120) having a vent hole (200) in fluid communication with the interior (12) of the inflatable product (10). The air pump assembly (100) may further comprise a cover (240) coupled to the housing. The cover may include a plurality of vent openings (244). The air pump assembly (100) may further comprise a rotatable assembly (104) supported by the housing (120). The rotatable assembly (104) may comprise a pump housing (112) having a first air vent (136) and a second air vent (138); an impeller (114) positioned in the pump housing; and a motor (110) operatively coupled to the impeller to drive a rotation of the impeller. The rotatable assembly (104) may be rotatable to a first position wherein air flows from the first air vent (136) of the pump housing (112) to the second air vent (138) of the pump housing (112) and through the vent hole (200) in the housing (120) into the interior (12) of the inflatable product (10) and a second position wherein air flows from the interior (12) of the inflatable product (10) through the vent hole (200) in the housing (120) into the first air vent (136) of the pump housing (120) to the second air vent (138) of the pump housing (120).

The disclosure relates to a compressor housing of a radial compressor. The compressor housing includes a radially inner housing region which forms an axial inflow channel in an intake region of the radial compressor. The compressor housing also includes a diffusor region which adjoins the radially inner housing region. The diffusor region is designed to deflect a radial flow downstream of a compressor impeller into an axial direction counter to an inflow direction of the inflow channel. The compressor housing also includes a radially outer housing region which adjoins the diffusor region, extends axially counter to the inflow direction and provides one or more charge air manifolds.

The present invention relates to an air cleaner, including a body forming an exterior; a suction portion formed on the body to suck air; a discharge portion formed on the body and discharging the air sucked through the suction portion; and a fan module provided in the body to form a flow of air flowing from the suction portion to the discharge portion, wherein the fan module includes: a driving portion forming a rotation shaft and generating power; a fan receiving the power from the driving portion and rotating about the rotation shaft; and a shroud accommodating the fan and provided between the suction portion and the discharge portion to guide the air sucked through the suction portion to the discharge portion, and the shroud includes a guide portion guiding foreign substances introduced through the discharge portion in a direction opposite to the flow of air.

Provided are an internal and external dual-purpose air pump, an inflatable product and a lifting handle device; the internal and external dual-purpose air pump includes a machine core, including a housing having an accommodating chamber and an inflating device arranged in the accommodating chamber; the housing is provided with an air outlet and an air suction inlet respectively in the bottom and top ends, and the air outlet and the air suction inlet can both communicate with the accommodating chamber; and the housing is slidably connected with a buckling member, which can move relative to the housing, thereby the machine core is buckled into or detached from a product to be inflated through the buckling member; the inflating device works to send air flow out through the air outlet and/or suction air flow through the air suction inlet. The inflatable product includes the internal and external dual-purpose air pump.

A pump assembly is provided for use with an inflatable product. The inflatable product has a chamber having an air inlet/outlet port. The pump assembly has a pump unit that is positioned inside the chamber for inflating and deflating the chamber, the pump unit having at least one motor that is operatively coupled to a blower, with the blower fluidly coupled to an opening of the pump housing. The chamber is inflated by intake of air through the inlet/outlet port to the blower and then into the chamber, and the chamber is deflated by drawing aft from the chamber to the blower and then out of the chamber through the inlet/outlet port.

An electric blower includes: a rotor that includes a rotary shaft; a centrifugal fan that includes a first opening and is attached to the rotary shaft; a fan case that includes a second opening and covers the centrifugal fan, the second opening including an opening end that is located outside an opening end of the first opening; and a fan case spacer that includes a third opening and is attached to the fan case, the third opening being in communication with the first opening. The fan case spacer includes: a spacer part that closes off a gap between the opening end of the first opening and the opening end of the second opening; and a cover part that extends outward from the opening end of the second opening and covers an outer surface of the fan case. The cover part includes a protrusion that is annular, protrudes toward the outer surface of the fan case, and surrounds the second opening. The protrusion is located between the opening end of the second opening and a tip part of the cover part and is in contact with the outer surface of the fan case.

An electric motor assembly includes an impeller, a guide vane disposed at a one side of the impeller along an axial direction, a stator disposed at one side of the guide vane along the axial direction, a rotor configured to rotate relative to the stator to thereby rotate the impeller, and a frame disposed at an outside of the stator in a radial direction and coupled to the stator. The frame includes a body that has a cylindrical shape, that is disposed at the outside of the stator, and that defines an air flow path, and a plurality of stator fixing parts that protrude from an inner surface of the body and are coupled to the stator. The plurality of stator fixing parts are inclined with respect to the axial direction.

A fan assembly in which all of the major structural components of the assembly are mechanically fastened together by non-welding means, such as mechanical fasteners, is disclosed. The disclosure also relates to a fan assembly in which the major structural components have planar segments separated by bend lines that approximate a curved shape, and that can be formed, for example, by a press brake machine. Such a construction can eliminate the necessity for rolling, welding, and painting of the structural components of the fan assembly.

An electric motor assembly includes a stator, a rotor, a motor housing, a rotatable shaft, a radial fan, and an air scoop. The motor housing at least partly houses the stator and rotor and presents an exterior motor surface. The rotatable shaft is associated with the rotor for rotational movement therewith, with the rotatable shaft extending along a rotational axis. The radial fan is mounted on the rotatable shaft exteriorly of the motor housing and is rotatable with the shaft to direct airflow in a radially outward direction. The air scoop extends radially outwardly relative to the radial fan and axially to receive radial airflow from the radial fan and turn the airflow axially to flow along the exterior motor surface. The air scoop includes spaced apart axially extending airflow vanes to guide the airflow as the airflow is turned axially.