A fan is equipped with a boss, a first blade member, and a second blade member. The boss has: a first end and a second end an axial direction; an inclined surface inclined, in a direction from the second end to the first end, toward an axial center extending in the axial direction; and an outer peripheral surface located between the inclined surface and the second end. The boss is rotatable about the axial center. The first blade member is connected to the outer peripheral surface of the boss. The second blade member is connected to at least one of the inclined surface or the outer peripheral surface located between the inclined surface and a connecting portion where the first blade member is connected to the outer peripheral surface.

A fan is equipped with a boss, a first blade member, and a second blade member. The boss has: a first end and a second end an axial direction; an inclined surface inclined, in a direction from the second end to the first end, toward an axial center extending in the axial direction; and an outer peripheral surface located between the inclined surface and the second end. The boss is rotatable about the axial center. The first blade member is connected to the outer peripheral surface of the boss. The second blade member is connected to at least one of the inclined surface or the outer peripheral surface located between the inclined surface and a connecting portion where the first blade member is connected to the outer peripheral surface.

A temperature destratification assembly can include an outer housing. An impeller can be positioned within the outer housing between the inlet and outlet of the outer housing. The impeller can have an impeller hub and a plurality of impeller blades extending radially outward from the impeller hub. The assembly can include an impeller motor configured to rotate the impeller blades about an axis of rotation. A stator can be positioned within the outer housing between the impeller and the outlet of the outer housing. The stator can include a plurality of vanes. The stator vanes can include an upstream edge at the upstream end of the stator, a first surface extending from the upstream edge to the downstream edge of the vane, and a second surface opposite the first surface and extending from the upstream edge to the downstream edge of vane. A plurality of the vanes can have a downstream edge at the outlet of the outer housing.

A temperature destratification assembly can include an outer housing. An impeller can be positioned within the outer housing between the inlet and outlet of the outer housing. The impeller can have an impeller hub and a plurality of impeller blades extending radially outward from the impeller hub. The assembly can include an impeller motor configured to rotate the impeller blades about an axis of rotation. A stator can be positioned within the outer housing between the impeller and the outlet of the outer housing. The stator can include a plurality of vanes. The stator vanes can include an upstream edge at the upstream end of the stator, a first surface extending from the upstream edge to the downstream edge of the vane, and a second surface opposite the first surface and extending from the upstream edge to the downstream edge of vane. A plurality of the vanes can have a downstream edge at the outlet of the outer housing.

A fan device with at least one radial fan (12), with a fan housing (13) in which an impeller (14) which is rotationally driven about a rotation axis is arranged, wherein the fan housing has a guide wall (18) which extends in a circumferential direction (17) of the impeller (14) around this, is equipped with several arcuate wall sections and delimits air blow-out openings (19a-d), wherein an arcuate wall section of the guide wall (18) is assigned to each of the air blow-out openings (19a-d), wherein the fan housing (13) includes a front cover plate (20b) which is provided with an air suction opening (21), and a rear cover plate (20a) which with regard to the flow direction is arranged downstream of the front cover plate (20b), and wherein a frame-shaped peripheral wall (36) of an outer housing (35) is arranged around the guide wall (18) and at its rear side (37) includes a rear frame opening (38a).

Air assemblies (1000,2000,3000,4000,5000) having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, air assemblies (1000,2000,3000,4000,5000) can be changed manually by a user by operating a directional control valve (1033,2043,3033,4033,5001) to inflate, deflate, or close the inflatable product. The directional control valve (1033,2043,3033,4033,5001) may also activate a pump in the inflation and deflation states and deactivate the pump in the closed state.

Air assemblies (1000,2000,3000,4000,5000) having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, air assemblies (1000,2000,3000,4000,5000) can be changed manually by a user by operating a directional control valve (1033,2043,3033,4033,5001) to inflate, deflate, or close the inflatable product. The directional control valve (1033,2043,3033,4033,5001) may also activate a pump in the inflation and deflation states and deactivate the pump in the closed state.

An air pump system includes a housing defining a first vent in fluid communication with an interior cavity of an inflatable member, a first one-way valve configured to open or close the first vent, a main pump having a main pump inlet and a main pump outlet, a valve control assembly for selectively opening or closing the one-way valve, an air pressure control assembly for sensing an air pressure of the interior cavity and generating a first air pressure signal when the air pressure reaches a first threshold air pressure, and generating a second air pressure signal when the air pressure reaches a second threshold air pressure, and a control device in electrical communication with the main pump, valve control assembly and the air pressure control assembly.

An air pump system includes a housing defining a first vent in fluid communication with an interior cavity of an inflatable member, a first one-way valve configured to open or close the first vent, a main pump having a main pump inlet and a main pump outlet, a valve control assembly for selectively opening or closing the one-way valve, an air pressure control assembly for sensing an air pressure of the interior cavity and generating a first air pressure signal when the air pressure reaches a first threshold air pressure, and generating a second air pressure signal when the air pressure reaches a second threshold air pressure, and a control device in electrical communication with the main pump, valve control assembly and the air pressure control assembly.

A fan for a climate control outdoor unit includes a plurality of airfoils located around a central hub. Each of the airfoils includes a leading edge and a trailing edge opposite the leading edge. A pressure side surface extends between the leading edge and the trailing edge. A suction side surface is opposite the pressure side surface and extends between the leading edge and the trailing edge. The leading edge includes a greatest negative deviation from a radial line of greater than 10% of a span of the airfoil. The greatest negative deviation is located at between 45% and 85% of the span of the airfoil.