A fan module for a soldering system and a soldering system, in particular for a reflow soldering system, for circulating air in a process channel of the soldering system, the module having a housing-like support part, a first shaft bearing provided in or on the support part, a motor, which includes a stator and a rotor which cooperates with the stator, a rotor shaft provided on the rotor, a fan wheel provided on the rotor shaft and having a second shaft bearing for supporting the rotor shaft, wherein the fan module includes a flange plate, which in the assembled state covers a channel opening in the process channel and which includes an aperture in or on which the second shaft bearing is provided.

A gyroscopic air handler provides a new powerful compact and efficient means to create airflow. At the core of the invention is a hubless magnetic chamber that rotates under its own power when acted upon by a composite electromagnetic duct. Composite field coils constructed from copper wire sheathed in a flexible iron sleeve are integrated into layers of Kevlar cloth and laid up with adhesive to create the desired shape as well as maintain the proper number of coils and spacing. Thrust bearings locate the hubless magnetic chamber within the duct. The invention can be retrofitted into the place of existing air handlers or purpose engineered for new applications. Gyroscopic inertia created by the magnetic chamber helps to dampen vibration as well as reduce the effects of unstable air conditions that can affect efficiency.

A modular fan cover assembly for inclusion on an electric motor is selectively configurable for degrees of reduced noise operation. The modular fan cover assembly includes a plurality of cooperating components arranged to direct fluid communication through the assembly. The components may include, for example, a fan cover defining a fan chamber for enclosing the fan, an inlet cover including an inlet chamber and a plurality of inlet apertures, and a silencing insert selectively includable with the fan cover assembly that may include one or more silencing features. The selective combination of the components can redirect airflow through various turns or bend in the modular fan cover assembly to trap or suppress noise propagating from the electric motor. The modular fan cover assembly may be operatively equipped with a blower assembly.

The present disclosure relates to electronically-controlled air assemblies having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, the present disclosure relates to air assemblies where the configuration of the air assembly can be changed by a user operating a directional control valve to inflate, deflate, or close an inflatable product. The air assembly may also maintain a predetermined air pressure value within the inflatable product.

A motor includes a rotating portion rotatable about a center axis that extends vertically and a stationary portion that rotatably supports the rotating portion. The stationary portion includes a stator facing at least a part of the rotating portion in a radial direction, a circuit board disposed axially below the stator, and a resin portion covering at least a part of the stator, and the circuit board. The stator includes a plurality of coils disposed in a circumferential direction. The circuit board includes an axially upper surface mounted with an electric element that is disposed at least at one of positions including a position between two coils of the plurality of coils, adjacent to each other in the circumference direction, and a position below the coil.

The present disclosure relates to the technical field of low-temperature pumps, in particular to a permanent magnet leakage-free low-temperature pump. The permanent magnet leakage-free low-temperature pump comprises a pump body, wherein a pump impeller is arranged in the pump body, the pump impeller and a permanent magnet motor are of a coaxial structure, no coupler device is arranged between the pump impeller and the permanent magnet motor, a motor barrel is arranged in the pump body and connected with an external power source through a wiring device to work, a first flange plate is arranged at the position, located at the front end, of the outer wall of the pump body, and a second flange plate is arranged at the position, located at the rear end, of the outer wall of the pump body.

A turbo compressor includes a housing with a refrigerant suction hole, through which a refrigerant is introduced, at a front portion thereof, and a motor case defining an accommodation space. The accommodation space includes a rotation shaft extending in a front-rear direction and a motor that is configured to rotate the rotation shaft. A first impeller is coupled to one end of the rotation shaft and a second impeller is coupled to the other end of the rotation shaft. The first impeller is configured to primarily compress the refrigerant introduced into the refrigerant suction hole. A connection passage, that surrounds the motor case extends backward from an outlet of the first impeller. The second impeller is configured to secondarily compress the refrigerant introduced through the connection passage.

A first elastic member is interposed between an outer peripheral surface of the circular core back portion and an inner wall surface of the second motor housing in a radial direction, both outer peripheral ends of the core back portion in the axial direction of the rotor are covered with the first elastic member, the first elastic member is assembled by being pinched between end surfaces of the first motor housing and the second motor housing which faces each other, and a second elastic member is assembled by being stacked between the bearing assembled in one of the pair of bearing housings and the bearing housing.

A lightweight impeller is provided for use in a pressurised gas source for a CPAP or other breathing assistance apparatus. The impeller can be shroudless or otherwise lightweight.

A blower includes a first extension having a first discharge port formed in a first wall, a second extension having a second discharge port formed in a second wall facing and spaced apart from the first wall, a fan provided below the first and second extensions to guide air toward each of the first tower and the second tower, a first gate provided inside the first tower or protruding from the first wall, a second gate provided inside the second tower or protruding from the second wall, a first guide motor to change a position of the first gate, and a second guide motor to change a position of the second gate.