A multiple-pump device for a vehicle may include a housing. The housing may include at least a first drive device for driving a first drive shaft with a first impeller, and a second drive device for driving a second drive shaft with a second impeller. The multiple-pump device may include a bearing shield penetrated by the first drive shaft and the second drive shaft. The beating shield may separate a wet region with the first impeller and the second impeller from a dry region with the first drive device and the second drive device. The multiple-pump device may include power electronics arranged in the dry region and connected with the bearing shield to transfer heat.

A multiple-pump device for a vehicle may include a housing. The housing may include at least a first drive device for driving a first drive shaft with a first impeller, and a second drive device for driving a second drive shaft with a second impeller. The multiple-pump device may include a bearing shield penetrated by the first drive shaft and the second drive shaft. The beating shield may separate a wet region with the first impeller and the second impeller from a dry region with the first drive device and the second drive device. The multiple-pump device may include power electronics arranged in the dry region and connected with the bearing shield to transfer heat.

A liquid cooling head includes an upper casing, an impeller, a bottom casing and a skived fin cooling plate. The upper casing has an inlet and an outlet, the upper casing is fixed on the bottom casing, and the impeller is arranged between the upper casing and the skived fin cooling plate. In addition, the skived fin cooling plate is fixed on the bottom casing, and the impeller sucks the heat-dissipating liquid from the inlet and drives the heat-dissipating liquid passing through the skived fin cooling plate, upwardly passing through the impeller and then discharged from the outlet.

The present invention provides a quick startup device for a centrifugal pump. The device includes an upper self-priming chamber, a lower self-priming chamber, and an inlet pipe sequentially arranged from top to bottom. The upper self-priming chamber and the lower self-priming chamber are integrally mounted on the inlet pipe. A main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber. A blade tip of each partition plate is closely attached to an inner wall surface of the upper self-priming chamber. Three identical accommodation grooves are provided on an inner side of the upper self-priming chamber. A spring and a separation baffle are arranged in each accommodation groove, an exhaust hole is provided on one side of each accommodation groove, and an air intake pipe is provided on the other side of each accommodation groove.

Apparatus and associated methods relate to simultaneously pumping and measuring density of an aircraft fuel. The aircraft fuel is pumped by a centrifugal pump having an impeller. A rotational frequency of the impeller is determined while the centrifugal pump is pumping the aircraft fuel. Flow rate of the aircraft fuel through the centrifugal pump is sensed. Pressure of the aircraft fuel is measured at two different points within or across the centrifugal pump or a differential pressure is measured between the two different points while the centrifugal pump is pumping the aircraft fuel. Density of the aircraft fuel is determined based on an empirically-determined head-curve relation corresponding to the centrifugal pump. The head-curve relation is empirically determined during a characterization phase. The empirically-determined head-curve relation relates the density of the aircraft fuel to the rotational frequency, the flow rate, and the pressures at the two different points.

Apparatus and associated methods relate to simultaneously pumping and measuring density of an aircraft fuel. The aircraft fuel is pumped by a centrifugal pump having an impeller. A rotational frequency of the impeller is determined while the centrifugal pump is pumping the aircraft fuel. Flow rate of the aircraft fuel through the centrifugal pump is sensed. Pressure of the aircraft fuel is measured at two different points within or across the centrifugal pump or a differential pressure is measured between the two different points while the centrifugal pump is pumping the aircraft fuel. Density of the aircraft fuel is determined based on an empirically-determined head-curve relation corresponding to the centrifugal pump. The head-curve relation is empirically determined during a characterization phase. The empirically-determined head-curve relation relates the density of the aircraft fuel to the rotational frequency, the flow rate, and the pressures at the two different points.

A canned motor device includes a casing, a rear cover and a leak detector. The rear cover has a main body portion having a cover end wall, and an extended disk portion cooperating with the main body portion to define an accommodating space. The casing and the rear cover cooperatively define an annular groove, a liquid-receiving space and a plurality of guiding grooves therebetween. The leak detector is disposed on one side of the cover end wall opposite to the liquid-receiving space for detecting a change in electrostatic capacity between the leak detector and the liquid-receiving space. The annular groove communicates with the liquid-receiving space, the accommodating space and each of the guiding grooves.

A rotor having spiral pathways to enable liquid or gas to flow from a center to an exterior thereof. The spiral pathways increases power generated (input force) as liquid/gas travels therethrough. The spiral pathway rotor includes an inner disk and an outer disk. Inner disk includes a central opening for receiving the liquid/gas and is connected to a plurality of pathways that extend toward an outer edge in a spiral manner. Nozzles may be utilized to expel the liquid/gas. Outer disk includes an open interior having a plurality of teeth formed on an interior surface. The teeth are configured to receive the liquid/gas expelled from inner disk which causes the rotor to rotate and thus increases the input force thereof. The input force is amplified to an output force on a shaft connected thereto.

A rotor assembly being an injection molded piece, and comprising a first shaft sleeve and a rotor; a first injection molded body is formed by using the rotor and the first shaft sleeve as injection molding inserts to pass through injection molding; a second injection molded body is formed by at least using the first injection molded body as an injection molding insert to pass through injection molding; the second injection molded body comprises a lower cover plate and a wrapping layer, the wrapping layer wrapping around at least a portion of the outer peripheral surface of the first injection molded body; the rotor assembly further comprises blades, the blades being fixedly connected to the lower cover plate or the blades forming an integrated structure with the lower cover plate.

A variable speed pumping system including a variable speed pump, a remote user device, and an auxiliary device is provided. The variable speed pump includes a motor, a drive, a housing including a drive cover, and an onboard controller. The onboard controller includes a plurality of buttons formed in the drive cover, a touchscreen interface positioned on the drive cover, a main circuit board including a non-transitory computer readable medium, the main circuit board being electrically coupled to the touchscreen interface, the motor, and the drive, a wireless communication unit electrically coupled to the main circuit board, and a selectively removable IO expansion module. The onboard controller is configured to control one of a flow rate of the pump or a speed of the motor for a period time and actuate the auxiliary device based on input received on one of the onboard controller or the remote user device.