The present invention provides wireless sensor technology seamlessly integrated into a pump system having a pump, a motor and a drive, has diagnostic and prognostic intelligence that utilizes sensor data, allows real-time condition monitoring; enables easy access to data and analytics via smart devices (i.e., smart phones and tablets); allows for easy remote monitoring (i.e., web portal) of the pump system; allows self-learning artificial intelligence (AI) built-in that adapts to changing conditions; and allows for smart pump system remote control. In operation, the present invention monitors the health and performance of the pump system that allows the user to get real-time data and intelligence virtually anywhere and anytime, as well as real-time diagnostics and prognostics, and also allows for smart control of the pump system remotely via smart device, and reduces downtime of equipment.

A system, method, and computer-readable medium for determining the flow rate and fluid density in an electrical submersible pump (ESP) and controlling the ESP based on the flow rate and density. In one implementation, an ESP system includes an ESP, drive circuitry, a current sensor, a voltage sensor, and a processor. The ESP includes an electric motor. The drive circuitry is electrically coupled to the ESP and is configured to provide an electrical signal to power the ESP. The current sensor is configured to measure a current of the electrical signal. The voltage sensor is configured to measure a voltage of the electrical signal. The processor is configured to calculate speed of a shaft of the electric motor based on a frequency induced by rotation of the motor detected in the current. The processor is also configured to calculate a density of fluid in the ESP based on the speed.

An emergency operation method for actuating a fuel pump after a first temperature threshold for an actuation electronics system of the fuel pump has been exceeded including reducing a power consumption of an electric motor that drives a pump stage by the actuation electronics system by reducing a rotational speed until a monitored temperature value falls below a second temperature threshold below the first temperature threshold. Emergency operation method is initiated after the first temperature threshold is exceeded by a fault signal output by the actuation electronics system to an engine control unit is communicatively connected to the actuation electronics system. The fault signal, as long as it is output, is used to suppress a specification for the rotational speed of the electric motor on the part of the engine control unit and instead to specify the rotational speed by way of the actuation electronics system.

A pump having an electric motor (14) and an electronic monitoring circuit (30) arranged in a housing part (26) of the motor, for monitoring and recording operating parameters of the pump, one of the operating parameters being the current consumption of the pump, the monitoring circuit (30) having a digital current and voltage measuring circuit (34) which is integrated in a semiconductor component and has at least one Hall sensor (36) for measuring current.

An auxiliary device for pumps, comprising a device body which defines a conveyance duct, which can be connected to the delivery of a pump driven by an electric motor, and at least one accommodation portion for an electronic controller which is connected to at least one sensor for detecting at least one operating parameter correlated to the operation of the pump. The electronic controller is functionally connected to a short-range wireless communication unit which can be configured to communicate with to at least one mobile device operated by a user.

A compressor includes a casing, a terminal provided to the casing, a terminal guard and an insulating member. The terminal includes a body section and a terminal rod inserted through the body section. The terminal guard is provided outside the casing to surround the terminal. The terminal guard includes a side wall facing the terminal rod in a radial direction. The insulating member is disposed inside the terminal guard. The insulating member includes a bottom section covering an area around the body section, and a side section integrally provided in an erected manner on a peripheral edge portion of the bottom section. The side section covers an inner surface of the side wall of the terminal guard.

The present invention provides a high-pressure pump. The high-pressure pump comprises a motor assembly, a gear assembly, a plunger assembly, a pump head assembly and a water inlet and outlet valve assembly. The motor assembly comprises a motor and a dual-layer housing. An annular water channel surrounding a motor stator is formed at the dual-layer housing. The periphery of the motor stator coil is filled with heat-conductive material, and the heat of the motor stator coil is conducted to the annular water channel through the heat-conductive material to perform active heat dissipation for the motor stator coil. Therefore, the cooling efficiency is high and the structure is simple.

An air compressor includes: a motor; a compression mechanism that is driven by the motor and that is configured to generate compressed air; a tank that is configured to store the generated compressed air; a load acquisition part that is configured to acquire a load applied to the compression mechanism; and a control part that is configured to control a rotation of the motor. The control part is configured to perform control for changing a TN characteristic of the motor in response to the load of the compression mechanism acquired by the load acquisition part.

A drive system for a fluid displacement pump includes an electric motor, a drive coupled to the rotor at a first end of the electric motor, a pump including a fluid displacement member mechanically coupled to the drive, and a controller configured to control a level of power to the electric motor based on a pressure setting set by a user. The electric motor includes a stator and a rotor disposed on an axis. The drive coupled to the rotor converts the rotational output to a linear, reciprocating input to power a pump.

A system for starting an air compressor in a low-temperature state includes a motor configured to generate rotation force according to a control signal of a controller, a piston configured to compress air through reciprocating motion using rotation force of the motor, an oil pump configured to provide oil stored in an oil pan to a rotation axis of the motor, an oil supply line configured to connect the oil pan to the oil pump, a recovery line configured to connect a discharge port of the oil pump to the oil supply line, and a valve connected to the recovery line and controlled by the controller, where the controller controls an on/off state of the valve based on a temperature of the motor, revolutions per minute (RPM) of the motor, or a pressure of the oil pump.