A ceiling fan mount assembly having a downrod assembly with a downrod and a motor assembly comprising motor and including a motor shaft. The ceiling fan mount assembly further includes a downrod plate coupled to the downrod and a shaft coupler coupled to the motor shaft and coupled to the downrod plate, whereby coupling the downrod plate to the shaft coupler suspends the motor from the downrod.

A ceiling fan having a dual redundant motor mounting assembly for suspending a motor comprising a downrod, a hollow motor shaft suspending the motor from the downrod, a retaining pin extending through the hollow motor shaft, and a retaining rod coupled to the retainer pin for redundantly suspending the motor.

An ceiling fan comprising a motor system. The motor system is mounted around a motor shaft. The motor shaft couples to a downrod for suspending the ceiling fan from a structure. The motor shaft and motor are encased by a motor housing. The motor housing comprises hub arms for mounting a plurality of blade holders. The blade holders coupled to a plurality of blades rotatable about the motor during operation. The downrod comprises a wire disk mounting guy wiring to the downrod. A retention rod is utilized internal of the motor and downrod as a secondary retention method. An electrical connector is internal of the motor shaft and electrically couples to the stator to power the motor.

Provided is a waterproof fan which includes: a rotor; a stator including a winding; a circuit board supplying power to the winding; a resin frame including an undersurface located on one side of a rotation axis of a rotor, and a housing space opening on the other side of the rotation axis, to house the circuit board; a waterproofing resin portion covering the stator and closing an opening of the housing space; a bearing rotatably supporting the rotating shaft portion; and a cylindrical metal bearing holder extending along the rotation axis and supporting the bearing, in which the frame includes a tubular holder protection portion extending from the undersurface to the other side of the rotation axis and covering at least a part of an outer peripheral surface of the bearing holder, and the holder protection portion separates the stator from the bearing holder.

The invention relates to a compressor machine (10; 10a), in particular a generator or a compressor unit for compressing a gas, comprising a shaft (12) which is arranged in a housing (18) so as to be able to rotate about a longitudinal axis (11) and which is mounted in at least two radial bearings (20, 22) and a thrust bearing (24), the radial bearings (20, 22) and/or the thrust bearing (24) being in the form of an aerodynamic or aerostatic bearing, the shaft (12) being at least indirectly connected to a compressor stage (15) or driving stage comprising an impeller wheel (13).

A motor including a support unit, a first rotating part, a second rotating part, a rotor and a stator is disclosed. The support unit includes an axle and a bearing coupled with the axle. The first rotating part is fit around the axle and is coupled with the bearing. The second rotating part is coupled with the first rotating part. The rotor is coupled with the second rotating part. The stator is connected to the support unit.

A heat dissipation fan of a magnetic suspension structure includes a fan frame, a fan blade assembly, a motor coil, a PCB, and an iron plate. The fan frame incudes a base portion and a circumferential wall portion. A central portion of the base portion is raised to form a central shaft. An assembling space is provided between an outer circumference of the central shaft and the circumferential wall portion. The motor coil is arranged in the assembling space and mounted to the central shaft and is electrically connected to the PCB to acquire electrical power. The fan blade assembly includes a hub portion including an axle core and blades extending radially from the hub portion. The fan blade assembly is rotatably mounted in the fan frame with the axle core mounted into a shaft formed in the central shaft. The rubber magnet encloses a circumference of the motor coil.

Apparatus for controlling the rotation about a longitudinal axis (X-X) of a fan (1) for cooling the cooling fluid contained in the radiator of a vehicle, comprising:—a fixed support sleeve (3), internally hollow and extending parallel to the longitudinal axis (X-X) of rotation of the fan;—a bell member (1a) for supporting the fan, mounted on the outer race (2a) of a bearing (2), the inner race (2b) of which is keyed onto the support sleeve (3);—an electromagnetic friction coupling (10) arranged between the bell member (1a) and movement receiving means (4) suitable for connection to the driving shaft of the vehicle;—an electric motor (20) for generating a rotational movement independent of the driving shaft of the vehicle, comprising a stator (21) and a rotor (22);—a first rear flange (3a) integral with the sleeve (3) and designed to support an electromagnet (12) of the electromagnetic friction coupling; a second front flange (40) integral with the sleeve (3) and designed to support the stator (21) of the electric motor (20) and a unit (30; 130) for controlling and electronically driving the electric motor (20), arranged in a position radially on the inside of the bell member (1a) for supporting the fan.

A static resistant fan apparatus, comprising: a conductive shaft; a first conductive fan blade connected to the conductive shaft and extending away from the conductive shaft; a second conductive fan blade connected to the conductive shaft and extending away from the conductive shaft opposite to the first conductive fan blade; a conductive support structure surrounding the conductive shaft, wherein an inner edge of the support structure is spaced apart from the conductive shaft a distance; and a conductive ground pass coupled between the conductive shaft and the support structure and spanning the distance, wherein the conductive shaft, the conductive support structure, and the conductive ground pass provide a path to ground for the first conductive and the second conductive fan blades.

The present embodiment comprises: a rotary shaft; a rotor mounted on the rotary shaft; a stator for encompassing the outer circumference of the rotor; an impeller mounted on the rotary shaft so as to be spaced from the rotor; a bearing housing having a through-hole through which the rotary shaft passes; a rolling bearing disposed in the bearing housing and coupled to the rotary shaft; and a gas bearing disposed in the bearing housing so as to be spaced from the rolling bearing in an axial direction, and facing the outer circumference of the rotary shaft.