An electric air compressor system includes an air compressor and an electric motor configured for driving the air compressor. An electric power storage device provides electric power to the electric motor. An electric generator provides electric power to the electric power storage device and/or to the electric motor. A power regulator including a processor controls operation of the electric generator. The power regulator controls operation of the electric generator based on at least one of an on/off operational state of the electric generator, the temperature of the electric generator, the temperature of the electric power storage device, the electrical current output of the electric generator, and the speed of the electric generator.

A smart sound appliance which has a noise producing device such as a compressor that is controlled by a controller. The controller receives information from a user indicative of whether the user is in a location to receive those sounds. When the user is in the location to receive those sounds, the controller can take an action to reduce those sounds by either turning off the compressor, or reducing the sound of the appliance in some other way.

A system and method for remotely monitoring a sump pump system are disclosed. The sump pump system comprises a control system connected to an integrated arrangement of a sensor chamber and a sump pump. The sensor chamber includes a pressure sensor and a capacitive touch sensor for measuring the water level to automatically turn the sump pump on when the water rises to a preset level. A wireless controller is connected to the system, for wirelessly receiving monitoring instructions and wirelessly transmitting sump pump status data to a remote device. Further, a user can configure a water-attribute value by using an application in the remote device. The user can operate and manage sump pump data via the application.

The invention relates to a method for monitoring and controlling the operation of a pump station (1) comprising a tank (8) for storage of a liquid and at least one pump (2), the pump station (1) further comprises an outlet conduit (5) connected to the pump (2), the method comprising the steps of: determining the Geodetic head (Hgeo) of the pump station (1), determining the pumped

Flow (Q) for a given pump operation duty point, determining the consumed Power (P) for the given pump operation duty point, and determining a Normalized Specific Energy (nSE) of the pump station (1) based on the determined values of Geodetic head (Hgeo), pumped Flow (Q) and consumed Power (P), by means of the formula (nSE)=(P/Q)/Hgeo.

Disclosed are an apparatus and method for controlling an oil pump for a vehicle which may control the speed of the oil pump. The apparatus includes a controller configured to control the speed of the oil pump based on the temperature information of a motor and oil and the speed and torque information of the motor, and, when the vehicle is being driven, the controller confirms whether or not a motor or oil temperature is higher than or equal to a first set temperature, controls the speed of the oil pump to a maximum speed value when the motor or oil temperature is higher than or equal to the first set temperature, and calculates a control speed value and controls the speed of the oil pump to the calculated control speed value when the motor or oil temperature is lower than the first set temperature.

Disclosed are an apparatus and method for controlling an oil pump for a vehicle which may control the speed of the oil pump. The apparatus includes a controller configured to control the speed of the oil pump based on the temperature information of a motor and oil and the speed and torque information of the motor, and, when the vehicle is being driven, the controller confirms whether or not a motor or oil temperature is higher than or equal to a first set temperature, controls the speed of the oil pump to a maximum speed value when the motor or oil temperature is higher than or equal to the first set temperature, and calculates a control speed value and controls the speed of the oil pump to the calculated control speed value when the motor or oil temperature is lower than the first set temperature.

A variable displacement pump for supplying fluid to a system is described. Controlling the variable displacement pump is determined based upon inputs from a fluidic pressure sensor and an accelerometer, and includes determining a desired fluidic pressure and monitoring, via the fluidic pressure sensor, an actual fluidic pressure. A pressure error term is determined based upon a difference between the actual fluidic pressure and the desired fluidic pressure. A time-integrated pressure error term is determined based upon the pressure error term, and a g-force is determined based upon an input signal from the accelerometer. The variable displacement pump is controlled in response to the time-integrated pressure error term when the g-force is greater than a threshold g-force.

A system for delivering an amount of fluid medium includes an injector, a delivery catheter and a pulsatile generator. The injector is configured for injecting the fluid medium during an injection cycle. The delivery catheter includes a conduit for delivering the fluid medium. The pulsatile generator is configured to apply a pulsatile force on the fluid medium delivered through the delivery catheter at a pulsation frequency. The pulsatile force is defined by a plurality of duty cycles during the injection cycle, each of the plurality of duty cycles including a first flow level and a second flow level that is lower than the first flow level. The pulsation frequency is 3 or more duty cycles per second.

A pulsatile fluid pump system for driving a fluid pump assembly includes a reciprocating linear motor having a magnet and a coil, the magnet moving in relation to the coil, the coil having an electrical input. The pulsatile fluid pump system further includes a controller system having an electrical output coupled to the electrical input of the coil, and the controller system is configured to execute a waveform program defining an electrical waveform at the electrical output. The waveform program is configured to control operation of the linear motor by modification of a feature, selected from the group consisting of amplitude, frequency, shape, and combinations thereof, of the electrical waveform at the electrical output. The waveform program is further configured to accept a set of user-specifiable parameters defining the performance of the linear motor and to modify the electrical waveform in response to such parameters.

A synthetic jet actuator includes a cavity layer having an internal cavity for reception of a fluid volume and an orifice providing a fluid communication between the cavity and an external atmosphere; an oscillatory membrane having a piezoelectric material adapted to deflect the oscillatory membrane in response to an electrical signal; and a controller configured to control delivery of electrical signals to the piezoelectric material for controlling operation of the oscillatory membrane based on input data received from one or more sources that informs on a temperature and/or performance level of a targeted objected for cooling. The actuator may further include a thermal element for affecting modified temperature control; and the actuator may be integrated into a surface of a thermally diffusive structure for dissipating heat from a thermal load.