The invention relates to a side-channel machine having a housing, located in the housing a side-channel for guiding a gas, and at least one gas inlet opening which is formed in the housing and is fluidically connected to the side-channel. Furthermore, the side-channel machine has at least one gas inlet pipe which connects to the at least one gas inlet opening. The side-channel machine further comprises at least one gas outlet opening and at least one gas outlet pipe which connects to the at least one gas outlet opening. Furthermore, the side-channel machine has an impeller that can be made to rotate in the housing, with impeller blades, which bound impeller cells arranged in the side-channel, for delivering the gas in the impeller cells from the at least one gas inlet opening to the at least one gas outlet opening. The side-channel machine further has at least one interrupter arranged between the at least one gas inlet opening and the at least one gas outlet opening.

The present disclosure relates to a sampling pump configured for use in a wellbore for pumping liquid collecting in the wellbore. The sampling pump has a pump component including a motor and an outer housing configured to be inserted into the well bore. The outer housing has an inlet and an outlet. A fluid sensor detects when the inlet of the outer housing is positioned in the liquid in the wellbore. A flexible electrical cable assembly supplies power to the motor and the fluid sensor, and also communicates with the motor and the fluid sensor. A user control panel communicates with the flexible electrical cable and enables a user to control on and off operation of the DC motor from the control panel. The user control panel also has a component which is responsive to signals from the fluid sensor to indicate when the inlet is at least partially submerged in the liquid within the wellbore, as the pump is lowered into the wellbore.

A turbomachine includes a housing and an electric motor in the housing. The electric motor has a shaft, a stator, and a rotor on the shaft. At least one impeller is arranged in a pump housing and driven by the shaft, the impeller having at least one ring of rotor blades delimiting a ring of blade chambers. A side channel is arranged in the pump housing opposite the ring of blade chambers and extends from the pump inlet as far as the pump outlet. A ramp is arranged at an end of the side channel in a radially inner half of the side channel. The ramp starts from a channel bottom, rises in a flow direction as far as the height of the pump housing wall, and merges with its radially outer half into the pump outlet.

There is disclosed a compressor comprising a case comprising a discharging part provided one side and configured to discharge a refrigerant, the case defining a predetermined space for storing oil; a drive part comprising a rotor coupled to an inner circumferential surface of the case and having coils wound there around and configured to generate a rotation magnetic field, and a rotor mounted in the rotor and configured to be rotatable by the rotation magnetic field; a shaft extending in a state of being coupled to the rotor; a compression part lubricated by the oil in a state of being coupled to the shaft and configured to compress and discharge the refrigerant; and a sealing part extending from the stator towards the compression part and configured to induce the winding of the coil.

A side-channel blower for an internal combustion engine includes a flow housing, an impeller which rotates in the flow housing, a drive unit which drives the impeller, a housing wall with a radially delimiting housing wall, impeller blades arranged in a radially outer region of the impeller, a radial gap arranged between the impeller and the housing wall, an inlet, an outlet, and two flow channels. The housing wall radially surrounds the impeller. The impeller blades open in a radially outward direction. The two flow channels connect the inlet to the outlet and are fluidically connected to one another via intermediate spaces between the impeller blades. An interruption zone is arranged between the outlet and the inlet which interrupts the two flow channels in a peripheral direction. A radial interrupting gap is arranged between the impeller and the radially delimiting housing wall in the entire interruption zone.

A motor-driven water lifting device of which the water lifting device includes housing having water-lifting wheel mounted in accommodation chamber therein, water supply pipe disposed at the periphery of the housing and having water inlet for guiding water into accommodation chamber and water outlet for guiding water out of accommodation chamber, and air inlet hole located on water supply pipe for allowing an external gas to be filled into accommodation chamber of housing so that when water is guided through the water inlet into accommodation chamber, the intake water is agitated by the water-lifting wheel and mixed with the external gas in the accommodation chamber to form a bubble water. The water molecules of the bubble water are finely mixed by mixing with the gas, and the fine bubble water is suitable for cleaning various objects to achieve an optimized cleaning effect.

A hydration system including a fluid reservoir, a fluid path in communication with the reservoir, and a magnetic quick connect interposed in the fluid path is disclosed. A fluid delivery system for a hydration system is also disclosed that includes a magnetic quick connect interposed in a fluid delivery path of the delivery system. The magnetic quick connect can also be used in a wide variety of fluid delivery systems. A kit for forming a fluid delivery system for a hydration system is also disclosed, as are various components of a hydration system.

A fluid pump includes an inlet plate having an inlet; an outlet plate having an outlet plate outlet passage; an outlet which discharges fluid from the fuel pump; an electric motor having a shaft which rotates about an axis; a pumping element rotationally coupled to the shaft such that rotation of the pumping element by the shaft causes fluid to be pumped from the inlet to the outlet plate outlet passage and through the outlet; and a retention clip. The retention clip includes a central portion, a first leg which extends laterally from one end of the central portion, and a second leg which extends laterally from the other end of the central portion. The inlet plate includes an inlet plate slot within which the first leg is located and the outlet plate includes an outlet plate slot within which the second leg is located.

A turbofan includes a circular end plate, a ring-shaped shroud facing the end plate, and a plurality of blade members disposed between the end plate and the shroud. An annular portion of a space between the end plate and the shroud where the blade members are disposed is a pressure-increase flow path. The turbofan causes air to flow from an inner peripheral side to an outer peripheral side of the pressure-increase flow path. A cross-sectional area of the pressure-increase flow path increases gradually from an upstream end toward a downstream end of the pressure-increase flow path.

An engine fuel or pump system includes a centrifugal pump having an impeller for imparting energy to an associated fluid for an associated downstream engine fuel system. A regenerative start stage is in selective fluid communication with the pump. And ejector includes an inlet that communicates with the pump outlet and an outlet that communicates with the pump inlet. Further, a regulator valve is interposed between the pump outlet and the regenerative start stage that selectively regulates associated flow from the regenerative start stage. The associated method include directing flow from the centrifugal pump to a regenerative start stage in order to supply an associated downstream flow circuit. During low speed starting, a portion of the flow from the regenerative start stage is provided to an ejector that recirculates to an inlet of the centrifugal pump. Once the centrifugal pump provides a predetermined level of at least one of the flow and pressure requirements of the associated flow circuit, the method includes terminating flow from the regenerative start stage.