A blower device includes a centrifugal fan that sucks air from one side of the blower device in an axial direction, and an air flow guide disposed between the centrifugal fan and the other side of the blower device in the axial direction. A first air flow from the centrifugal fan is bent toward the other side in the axial direction. A second air flow from the centrifugal fan is bent toward the other side in the axial direction, and then bent inward in the radial direction. A ratio of a pressure loss in the second air flow to a pressure loss in the first air flow before a downstream end of the air flow guide is smaller than a ratio of a pressure loss in the second air flow to a pressure loss in the first air flow before an upstream end of the air flow guide.

A frame for supporting a horizontal pumping system includes a base assembly and a motor support assembly connected to the base assembly. The motor support assembly includes an upper support plate having a top and a bottom, a first lower support plate connected to the upper support plate, and a second lower support plate connected to the upper support plate. The first and second lower support plates are connected to the upper plate with bolted and welded connections.

The invention discloses a micro hydraulic suspension mechanical pump structure and an assembling method thereof. The hydraulic suspension micro pump includes a volute, an upper end cap, a positioning sheet, an impeller, a hollow cup motor, a waterproof cover, and a rotor. The hollow cup motor includes a motor casing, a motor bottom cap, a magnet rotor, a coil, and an iron core. The waterproof cover is in a separated state from the motor, and a lower part has a positioning boss to implement radial cooperation with a recess at a corresponding position of the motor. At the same time, there is the sheet between the recess and the boss to implement axial positioning of the waterproof cover.

A thin cooling fan includes a fan shell, a motor, a plurality of blades, and a PCB. The fan shell comprises a base plate and a shell cover which cover to each other to form an inner space. The base plate has a first surface facing toward the inner space and a second surface having a receiving space and opposite to the first surface. The motor is combined in the inner space. The blades are disposed in the inner space and rotated by the motor. The PCB is disposed in the receiving space and flush with the second surface. Thus, the whole thickness of the cooling fan is reduced and the flow channel design in the inner space is not affected.

The present embodiments disclose a mechanical shaft lock for use in electric submersible pumps. The mechanical shaft lock can include one or more shear pins. When an end of the shear pin, e.g., shear pin head, lines up with one or more shearing slots on the MSL or pump shaft, the shear pin engages and stops the rotation of the pump shaft and motor attached to the pump. The shaft lock can be engaged for installing an ESP, disengaged for production after installing by breaking the shear pin upon start-up, and re-engaged for removing the ESP from the wellbore. In some embodiments, the MSL may be configured to be disengaged and re-engaged to deal with well kicks.

A fluid pump assembly is used in combination with a container having a wall. The pump assembly comprises a first casing disposed outside the container in contact with the wall, a first magnetic assembly mounted to the first casing and operatively associated with a drive motor, a second casing disposed inside the container in contact with the wall, and a second magnetic assembly mounted to the second casing and operatively associated with an propeller. The first magnetic assembly includes a rotatable magnetic drive member drivingly coupled to the drive motor. The magnetic drive member is magnetically coupled to the magnetic driven member through the wall for imparting a rotary driving force of the drive motor to the propeller. Furthermore, the second casing is detachably connected to the second side of the wall of the container solely by magnetic attraction force between the first and second magnetic assemblies.

Provided is an outer enclosure for a turbo blower in which a turbo blower is installed, which includes a housing forming an exterior of the outer enclosure, an outside air inflow chamber which is a space partitioned in one side inside the housing and which communicates with the outside through an outside air inlet, an inverter chamber which is a space partitioned in the other side inside the housing, a motor chamber which is a space partitioned in an upper portion of a space positioned between an inverter chamber and the outside air inflow chamber, and in which a turbo blower including an intake nozzle communicating with the outside air inflow chamber is positioned, and a first refrigerant discharge port is positioned on one side, a refrigerant inflow chamber which is a space in a lower portion of the motor chamber and which communicates with the outside through a refrigerant inlet, in which the upper and lower portions of the inverter chamber are in communication with the motor chamber and the refrigerant inflow chamber, respectively, and the refrigerant inflow chamber is communication with the motor chamber.

Disclosed is a fan motor. The present disclosure provides a fan motor including a motor housing receiving a motor therein, a motor bracket disposed on the motor housing, an impeller coupled to a shaft of the motor, and a diffuser disposed between the motor and the impeller and having a vane body, an axial flow vane provided to an inner circumference of the vane body, and a diagonal flow vane provided above the axial flow vane.

A rotating device includes a housing; a variable guide vane module provided on a surface of the housing; and a housing cover covering the variable guide vane module. The variable guide vane module includes a first module, which comprises a vane case that has a cylinder shape and that is provided in the housing, and further comprises a first link that is provided on the vane case; and a second module, which comprises a shroud case that is seated between the housing and the vane case, and further comprises a second link that is provided in the shroud case and is configured to be driven in accordance with driving of the first link. The variable guide vane module is configured to be separable into at least two modules, including the first module and the second module.

A compressor device includes a housing with a cavity. The compressor device includes a rotating group supported for rotation within the housing. The rotating group includes a shaft that supports a compressor wheel proximate a first end of the shaft. A second end of the shaft extends away from the compressor wheel through the cavity of the housing. The compressor device further includes a moisture evacuation system configured to remove airborne moisture from the compressor device. The moisture evacuation system includes a shaft passage extending through the second end of the shaft and a housing passage extending through an outer wall of the housing. The shaft passage is fluidly connected to the cavity. The housing passage is fluidly connected to the shaft passage. The moisture evacuation system is configured to direct the airborne moisture from the cavity, through the shaft passage, and out of the housing via the housing passage.