Systems and methods for monitoring operation of a sump pump are provided. A method includes connecting a power adapter to the sump pump and a float-switch. The power adapter includes a controller positioned within a housing, prongs in communication with components coupled to the controller, a first receptacle and a second receptacle. The controller is configured to establish a wireless connection to a first wireless network, and transmit a message to a remote server over the first wireless network. The controller is further configured to determine a power status of a float switch and control the pump based on power status of the float switch.

A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. The transfer pump further includes a spout extending mounted to an outlet connector of the fluid module by an inlet end of the spout interfacing with an outlet end of the outlet connector. The spout is repositionable relative to the outlet connector while mounted to the outlet connector.

A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. A control module is configured to monitor operation of the transfer pump and control pumping by the transfer pump. The control module is configured to receive dosing commands from a user interface, recall a dosing parameter based on the dosing command, and cause the drive module to operate the fluid module based on the dosing parameter to cause the transfer pump to output a set volume of material.

A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module.

A motor oil pump assembly includes: a motor component; an oil pump component, where the oil pump component is supported on an end cover of the motor component; an inner sound insulation enclosure, where the inner sound insulation enclosure encloses the oil pump component, and the inner sound insulation enclosure and the oil pump component define an inner sound insulation cavity filled with low-pressure oil; and a pre-tightening buffering component, where the pre-tightening buffering component is pressed between an upper end cover of the oil pump component and the inner sound insulation enclosure, and the pre-tightening buffering component is in communication with a high-pressure cavity of the oil pump component.

A motor drive and method of controlling a motor are provided. The motor drive includes a controller generating a motor reference voltage; a DC bus providing a DC voltage having a ripple; an inverter including power switches operable to convert the DC voltage into an AC motor voltage by modulating the power switches during a plurality of switching cycles, the AC motor voltage based on the motor reference voltage; a capacitor circuit coupled to the DC bus and having a maximum capacitance that is less than 10 microfarads per ampere of a rated current; and voltage prediction logic structured to: detect a voltage value corresponding of the ripple during each of the plurality of switching cycles; and modify the motor reference voltage during each of the plurality of switching cycles using the voltage value.

A pump apparatus can include a suction tube, a pliable sealing ring, and an actuator mechanism coupled to the suction tube. The suction tube can be configured to be removably coupled to a container in which the viscous fluid is arranged and be fluidly coupled to an interior of the container and to an output port for outputting the viscous fluid. The pliable sealing ring can be configured to sealingly engage with an interior wall of the container. When the suction tube is coupled to the container and the pliable sealing ring is sealingly engaged with the interior wall of the container, actuating the actuator mechanism can cause the viscous fluid to be suctioned upwardly through the suction tube and output from the output port, ambient air to be drawn into the container, and the pliable sealing ring to move downwardly.

A pump apparatus for a viscous fluid that can include a container in which the viscous fluid is arranged, and a cap configured to be removably coupled to the container. A sealing plate can be sealingly engaged with an interior wall of the container and arranged above the viscous fluid. A stabilizer can be arranged within the container and define a second suction tube aperture. A suction tube can be configured to extend through the first and second suction tube apertures. An actuator mechanism can be coupled to the suction tube. When the suction tube is arranged in an interior of the container, actuating the actuator mechanism can cause: the viscous fluid to be suctioned upwardly through the suction tube and output from an output port, and the sealing plate to move downwardly.

The present invention relates to a fuel tank arrangement of a marine vessel including a fuel tank for Liquefied Natural Gas, the fuel tank having a shell, a heat insulation in connection therewith, connections for a pipeline for bunkering LNG to the fuel tank, a pipeline for taking boil-off gas from the fuel tank and a pipeline for taking LNG from the fuel tank, and a deep well pump for pumping LNG from the tank to the pipeline, wherein at least one recess is extending inwardly from the shell and being arranged on top of the fuel tank, the deep well pump being installed in the at least one recess.

A hydraulic pressure supply unit has a storage chamber which stores hydraulic fluid, a hydraulic pump which is arranged within the storage chamber and dips at least partially into the stored hydraulic fluid, and an electric motor which drives the hydraulic pump. The electric motor is arranged below the hydraulic pump in a separate motor chamber which is situated below the storage chamber, is dry, and is not connected fluidically to the storage chamber. The electric motor is coupled in a thermally transmitting manner to a separating floor, the upper side of which delimits the storage chamber and is wetted continuously with stored hydraulic fluid.