A method of operating a dishwashing appliance includes activating a pump for a predefined self-calibration time by supplying electrical power from a power supply to a motor of the pump. The method also includes monitoring, with the sensor circuit, electrical power between the power supply and the motor while the pump is activated for the predefined self-calibration time. The method further includes determining, based on the monitored electrical power, a motor type of the motor and selecting a set of control parameters corresponding to the determined motor type of the motor. The method also includes activating the pump according to the selected set of control parameters during at least one cycle of the dishwashing appliance.

A method of operating a dishwashing appliance includes activating a pump for a predefined self-calibration time by supplying electrical power from a power supply to a motor of the pump. The method also includes monitoring, with the sensor circuit, electrical power between the power supply and the motor while the pump is activated for the predefined self-calibration time. The method further includes determining, based on the monitored electrical power, a motor type of the motor and selecting a set of control parameters corresponding to the determined motor type of the motor. The method also includes activating the pump according to the selected set of control parameters during at least one cycle of the dishwashing appliance.

A pump arrangement includes an axial-flow machine and a drive to convey fluid mounted in a housing. The axial-flow machine is formed by at least one first rotor having permanent magnets, a shaft connected to the first rotor and a stator arrangement with stator teeth distributed concentrically around the shaft axis circumferentially and axially separated from the first rotor by an air gap. The stator teeth have axially-opposite end portions and a tooth core therebetween wound with at least one coil winding. The second end portion, turned away from the first rotor, of each stator tooth forms a tooth root joined to a back plate. The first rotor is an eccentric disk and on the side away from the stator arrangement has an eccentric cam, radially spaced from the shaft axis, and rotatably and torque-transmittingly connected to the drive. An axial-flow machine and a compressor includes the pump arrangement.

In response to a torque that is applied to a clutch module not exceeding a torque threshold, the clutch module is locked where a blade is configured to be at a first pitch angle in response to the clutch module being locked. In response to the torque that is applied to the clutch module exceeding the torque threshold, the clutch module is released where the blade has a range of motion which extends from the first pitch angle to a second pitch angle in response to the clutch module being released.

Aspects of the invention generally provide a heat engine system and a method for activating a turbopump within the heat engine system during a start-up process. The heat engine system utilizes a working fluid circulated within a working fluid circuit for capturing thermal energy. In one exemplary aspect, a start-up process for a turbopump in the heat engine system is provided such that the turbopump achieves self-sustained operation in a supercritical Rankine cycle. Bypass and check valves of a start pump and the turbopump, a drive turbine throttle valve, and other valves, lines, or pumps within the working fluid circuit are controlled during the turbopump start-up process. A process control system may utilize advanced control techniques of the control sequence to provide a successful start-up process of the turbopump without over pressurizing the working fluid circuit or damaging the turbopump via low bearing pressure.

An imaging apparatus for imaging a rotating component is shown. The imaging apparatus has a proximal end configured to be attached to the rotating component, along with a distal end. The imaging apparatus has located within it a convex mirror at the distal end, which has a reflective surface which is directed toward the proximal end and having a field of view wider than the imaging apparatus. The imaging apparatus also has located within it a camera at the proximal end, the camera being directed towards to distal end and having a field of view which includes the mirror.

A pump assembly with at least one liquid space (32) in an interior. The liquid space (32) contains a liquid or is configured for receiving a liquid. A sensor (34, 42) is arranged in the liquid space (32), which sensor is configured to detect at least one material property of the liquid located in the liquid space (32). A filter element (44) is arranged in the interior of the liquid space (32) such that the filter element (44) shields the sensor (34, 42) with respect to the surrounding liquid space (32), the filter element (44) being permeable to the liquid. A method for controlling a pump assembly is also provided.

A pump device has at least one chamber (22) or conduit containing or provided for containing a liquid, a concentration sensor (24) arranged in the chamber (22) or conduit for detecting a concentration of a substance in the liquid and an evaluation unit (28) connected to the sensor (24). The sensor (24) and the evaluation unit (28) are configured for an electrical impedance measurement. The evaluation unit (28) is configured such that a measurement for detecting the concentration is carried out by use of an electrical signal applied to the sensor (24) having at least one frequency corresponding to or above an upper cut-off frequency (f.sub.2) of a frequency range showing a constant electrical impedance (R.sub.m). A method is provided for determining the concentration of a substance inside a liquid.

The invention provides a flow system, a subsea valve (100), and a method of use in a subsea pipeline filling, flooding or pigging operation. The flow system comprises a subsea valve (100) comprising a valve inlet and a valve outlet configured to be coupled to a subsea pipeline (13). A pump (112) comprises a pump inlet connected to a fluid source and a pump outlet connected to the valve inlet. The pump is operable to pump fluid from the fluid source and into the subsea pipeline via the subsea valve. The subsea valve comprises a movable valve member and a biasing mechanism, by which the valve member is urged by a biasing force towards a closed position that prevents flow of fluid through the valve and into the subsea pipeline. The valve member is operable to be moved to an open position on activation of the pump to provide a pressure increase at the valve inlet sufficient to overcome the biasing force. In use, opposing sides of the valve member are exposed to ambient subsea pressure such that the subsea valve is pressure balanced.

A Y-tool is configured for use with a pumping system that includes an electric submersible pump and bypass tubing. The Y-tool includes a slave valve assembly that controls access to the bypass tubing. The Y-tool also includes a master valve assembly driven by pressure from the electric submersible pump and a linkage assembly connected between the master valve assembly and the slave valve assembly.