A compressor device comprising a compressor element with a housing with, an inlet and an outlet. At least one rotor is affixed in the housing that is provided with a drive. The compressor device is provided with an oil circuit for injecting oil into the housing. The oil circuit only comprises one pump for driving the oil around in the oil circuit. This pump is coupled to a first shaft via a first disengageable coupling, more specifically a shaft of the aforementioned drive on the one hand, and to a second shaft via a second disengageable coupling, more specifically a shaft of a secondary drive on the other hand. The first and second disengageable couplings between the pump and the first shaft and between the pump and the second shaft are such that the pump is only driven by the shaft of these two shafts that has the highest speed.

An oil cooling system for a motorized pump is described. The motorized pump includes an oil sump and oil flow path, the oil sump and oil flow path containing oil to lubricate and remove heat from a bearing assembly and drive shaft. A motor coupling housing attached to a bearing box holding the bearing assembly includes an interior space that houses an oil cooling system. The oil cooling system includes a finned cooling tube connected to an outlet of an oil flow path in the bearing box. A fan is connected to the drive shaft of the motorized pump, and is situated to force air over the cooling tube and plurality of fins such that hot oil received by the cooling system is cooled and the cooled oil is returned to the oil flow path in the bearing box.

The present invention discloses a high flow low pressure suction device. The device is a non-contact suction device based on multiple stage turbulence based low pressure suction mechanism which comprises fan(s) or rotating impeller(s) for drawing air/fluid/slurries operates without any seal between the device and the sucked surface. The device compounds this turbulence based low pressure generation along with Bernoulli's principle to yield a high efficiency suction device. The device implements the above concept by making the air/fluid/slurries flow through two or three zones selected from the acceleration zone(s), turbulence zone(s) (high turbulence zone) and smooth zone(s) (minimum turbulence zone). The device works by pulling the air/fluid/slurries into the vacuum chamber, accelerating the air/fluid/slurries, creating turbulence in the air/fluid/slurries in a thin region near the perimeter in order to cause a drop in pressure and then maintaining pressure over a large bottom area and finally exhausting the air/fluid/slurries through the fan(s)/rotating impeller(s).

Provided is a magnetic pump that includes an isolation hood, an electric motor, a first rotating magnet, a second rotating magnet, and a pump body. The isolation hood includes a first mounting position and a second mounting position which are isolated and sealed from each other. The electric motor and the second rotating magnet are both disposed on the first mounting position, while the first rotating magnet and the pump body are both disposed on the second mounting position. Further provided is a water pumping device that includes a magnetic pump and a box filled with a liquid to be transported. The magnetic pump is arranged on the box, the magnetic pump being the magnetic pump described above. Further provided is a method for using a magnetic pump, which can prevent contact between a power cable of the electric motor and the liquid inside the box.

Technologies are described for devices and methods for adjusting a position of impellers within a bowl assembly. The devices may comprise an adjuster at the second end of a spacer coupling. The adjuster may include an adjuster sleeve. The adjuster sleeve may be a cylindrical sleeve. The adjuster sleeve may be threaded on an internal side. The adjuster sleeve may be spaced from the driven hub so that the adjuster sleeve can rotate around a driven shaft. The adjuster sleeve may threadedly mate and engage with an externally threaded first end of the driven shaft when the adjuster sleeve is rotated. The rotation of the adjuster sleeve may adjust a position of the driven shaft with respect to the driven hub and may thereby adjust a position of an impeller attached to a second end of the driven shaft with respect to a stationary bowl.

A pumping system includes a motor and a drive shaft configured for rotation by the motor. The pumping system includes an upper pump positioned above the motor, an upper pump shaft and an upper directional coupling connected between the drive shaft and the upper pump shaft. The upper directional coupling is configured to lock the upper pump shaft to the drive shaft when the drive shaft is rotated in a first direction. The pumping system further includes a lower pump positioned below the motor, a lower pump shaft, and a lower directional coupling connected between the drive shaft and the lower pump shaft. The lower directional coupling is configured to lock the lower pump shaft to the drive shaft when the drive shaft is rotated in a second direction.

A clothes treating device includes a clothes accommodation part for accommodating clothes or laundry, a water supply pipe for supplying water into the clothes treating device, and a drain pipe for discharging water to the outside of the clothes treating device. A pump assembly generates a flow of water inside the water supply pipe and the drain pipe by using the rotation of a motor. The flow of water is generated only in one of the water supply pipe and the drain pipe depending on the rotating direction of the motor.

A pump assembly includes an electrical drive motor, at least one impeller (14) which is rotatingly driven by the electrical drive motor as well as a control device (17) which activates the drive motor. The control device (17) is configured such that the control device (17) selectively activates the drive motor in at least one first or a second operating mode. In a first operating mode, the drive motor is activated by the control device (17) such that a rotor (6) of the drive motor continuously rotates. In the second operating mode the drive motor is controlled by the control device (17) such that the rotor (6) of the drive motor is moved further stepwise manner in at least one selected angular step of preferably smaller than 360.

A coolant pump for a vehicle may include an impeller mounted at one side of a shaft and pumping a coolant; a pulley mounted at the other side of the shaft and receiving a torque; a coolant pump housing including an inlet to which the coolant inflows and a discharge port formed in a vertical to the shaft; a slider disposed to be movable in a longitudinal direction of the shaft to selectively block or open the discharge port; and a driver moving the slider, wherein a fine passage that the coolant is expelled to the discharge port is formed at the slider.

An electrical submersible pump assembly for pumping well fluid from a well has a motor and a pump. The motor having a motor shaft that drives a pump shaft of the pump. A thrust bearing unit between the motor and the pump has a thrust bearing shaft that rotates a thrust runner in sliding engagement with a non-rotating thrust bearing base. A pump shaft coupling couples the thrust bearing shaft with the pump shaft. A motor shaft coupling couples the thrust bearing shaft with the motor shaft. At least one of the couplings has a one-way clutch that allows forward direction rotation of the thrust bearing shaft and prevents reverse direction rotation.