Abstract: A gas turbine engine includes a fan that has fan blades wherein the fan delivers airflow to a bypass duct. A gearbox is defined along an engine axis. A low spool is arranged aft of the gearbox and coupled to drive the gearbox. A front center body assembly is defined around the engine axis. A flexible support supports the gearbox relative to the front center body assembly. A bearing package is mounted to the front center body assembly and the low spool. A front wall is mounted to the front center body assembly. The front wall is removable from the front center body assembly to access at least one of the gearbox or the bearing package. The low spool includes a low pressure compressor hub that provides an engagement feature for engaging the bearing package.

Abstract: An exhaust energy recovery system (EERS) and associated methods for an engine are disclosed. An embodiment of an EERS, for example, includes an inlet duct that is configured to divert exhaust gas from an exhaust duct of the engine into the recovery system and an outlet duct configured to return the exhaust gas to the exhaust duct downstream of the inlet duct. The recovery system is configured to heat components or fluids associated with engine to operating temperatures. The recovery system may be part of a mobile power system that is mounted to a single trailer and includes an engine and a power unit such as a high pressure pump or generator mounted to the trailer. Methods of operating and purging recovery systems are also disclosed.

Abstract: A system for producing high purity carbon monoxide and hydrogen as well as activated carbon includes a pyrolysis reactor, a gasifier, a combustion turbine, a boiler, a steam turbine, a combined cycle unit and an electrolysis unit. Liquid fuel from the pyrolysis reactor is provided to the combustion turbine. Liquid and gaseous fuels are provided to the boiler. Compressed oxygen from the electrolysis unit is provided to the combustion turbine. Electric power from the combustion turbine and steam turbine are provided to the electrolysis unit. The gasifier includes a preheat region, a gasification region, and a cooling region. CO2 and O2 are injected into the gasifier at multiple injection levels to create an isothermal gasification region to produce CO. The CO2 and O2 are preheated in a heat exchanger using the CO exiting from the gasifier prior to injection.

Abstract: When the output power of a gas turbine is going to be reduced and when the relationship between the target output power and the rotational frequency of the gas turbine satisfies predetermined conditions, a control device of a power unit system reduces the output power of the gas turbine to the target output power and thereafter reduces the rotational frequency of the gas turbine to the target rotational frequency, whereas when the relationship between the target output power and the rotational frequency of the gas turbine does not satisfy the predetermined conditions, the control device reduces the rotational frequency of the gas turbine to the target rotational frequency and thereafter reduces the output power of the gas turbine to the target output power.

Abstract: A fuel system including a fuel metering unit, a heat exchanger, a plurality of fuel nozzles, and a coke filtration system. The fuel metering unit is configured to meter a flow of a hydrocarbon fuel. The heat exchanger is fluidly connected to the fuel metering unit. The heat exchanger is configured to heat the hydrocarbon fuel to improve engine performance or efficiency. The plurality of fuel nozzles is fluidly connected to the heat exchanger downstream of the heat exchanger to receive the hydrocarbon fuel heated by the heat exchanger. The coke filtration system includes at least one filter to remove coke particles in the heated fuel. The coke filtration system is located upstream of the plurality of fuel nozzles and directly downstream of the heat exchanger.

Abstract: The invention relates to a planetary gearbox in a gas turbine engine wherein a plurality of planetary gears are each mounted on a planetary gear bearing journal by a slide bearing, characterized in that a bushing is arranged in an inner bore of at least one planetary gear, which bushing spatially separates the sliding surface of the slide bearing from the inner bore of the planetary gear and the bushing is designed as a replacement part, in particular as a sacrificial part. The invention also relates to a gas turbine engine.

Abstract: A gearbox assembly for a gas turbine engine includes a hollow gear. The hollow gear has one or more reservoirs configured to store a lubricant and one or more passages configured to supply the lubricant to one or more gear meshes in the gearbox assembly. The hollow gear provides a dampening system configured to absorb vibrations and loading experienced in the gearbox assembly and configured to provide impact resistance for the gearbox assembly.

Abstract: A highly efficient gas turbine engine is provided. The fan of the gas turbine engine is driven from a turbine via a gearbox, such that the fan has a lower rotational speed than the driving turbine, thereby providing efficiency gains. The efficient fan system is mated to a core that has low cooling flow requirements and/or high temperature capability, and which may have particularly low mass for a given power.

Abstract: A gas turbine engine for an aircraft and a method of operating a gas turbine engine on an aircraft. Embodiments disclosed include a gas turbine engine for an aircraft including: an engine core has a turbine, a compressor, and a core shaft; a fan located upstream of the engine core, the fan has a plurality of fan blades; a nacelle surrounding the engine core and defining a bypass duct and bypass exhaust nozzle; and a gearbox that receives an input from the core shaft and outputs drive to the fan wherein the gas turbine engine is configured such that a jet velocity ratio of a first jet velocity exiting from the bypass exhaust nozzle to a second jet velocity exiting from an exhaust nozzle of the engine core at idle conditions is greater by a factor of 2 or more than the jet velocity ratio at maximum take-off conditions.

Abstract: An engine is provided with a turbo charger including a wastegate valve. A first setpoint of opening of the wastegate valve is set in accordance with a target boost pressure. While a difference between the target boost pressure and a real boost pressure is large, the opening is controlled to a second setpoint, wherein the second setpoint is smaller than the first setpoint. While the opening is controlled to the second setpoint, it is determined whether a condition for limitation is satisfied in which an intake air quantity is above an intake air quantity criterion and an engine rotation speed is above an engine rotation speed criterion. When the condition is satisfied, the opening is controlled in a direction to increase from the second setpoint. The engine rotation speed criterion decreases as the intake air quantity increases. The intake air quantity criterion decreases as the engine rotation speed increases.

Abstract: A controller is configured to control an internal combustion engine that includes an exhaust gas temperature sensor. The exhaust gas temperature sensor detects, as an exhaust gas temperature, a temperature of exhaust gas flowing through an exhaust passage. The controller is configured to execute an estimation process that estimates a generation amount per unit time of condensed water generated in the exhaust passage. In the estimation process, the controller estimates a lower value of the generation amount for a higher value of the exhaust gas temperature that is detected by the exhaust gas temperature sensor.

Abstract: An example operation includes one or more of utilizing a first function of a transport, determining a degradation of performance of the transport due to the use of the first function, determining a probable second function to be used by the transport, modifying the second function and utilizing the modified second function, to offset the degradation of the performance of the transport.

Abstract: A fuel pressure control system for a fuel supply system of an injector of an engine includes: a booster pump for increasing a high-pressure system fuel pressure; a pressure reducing valve for reducing the high-pressure system fuel pressure; and a control device for controlling the booster pump and the pressure reducing valve. The control device includes a valve opening necessity determination unit for the pressure reducing valve. The control device executes a valve opening control for opening the pressure reducing valve. The control device further includes a restriction execution unit for performing a valve opening restriction control in the valve opening control to prevent a pressure exceeding a predetermined target portion threshold pressure from being applied to a target portion.

Abstract: A method for operating an injector on an internal combustion engine includes the steps of: introducing a fuel into a combustion chamber of the internal combustion engine by way of the injector; capturing, for a plurality of injection events, a wear value for the injector; assigning each respective one of the wear value that is captured to a respective one of a plurality of wear value classes; determining, for each of the plurality of wear value classes, a class frequency of a plurality of the wear value that are captured and assigned to a corresponding one of the plurality of wear value classes; calculating, based on a plurality of class frequencies of the plurality of wear value classes, a total wear value for the injector; and evaluating a condition of the injector based on the total wear value.

Abstract: A chain cover includes a first member, which is made of a hard plastic, and a second member, which is made of a material different from the hard plastic. The first member is formed by insert molding with the second member as an insert. A first joint surface is formed in a peripheral portion around an insertion hole. The first joint surface is joined to the first member. The first joint surface includes a first joint portion, which includes a lattice-shaped recess portion, and a second joint portion, which includes grooves. The grooves extend in a direction in which the peripheral portion extends, while being arranged in an intersecting direction, which intersects with the extending direction. The second joint portion is provided to be closer to a space adjacent to the peripheral portion than the first joint portion.

Abstract: An articulating exhaust nozzle thrust reverser includes an outer articulating panel comprising an outer skin and an outer thrust reverser door and an inner articulating panel comprising a forward inner skin, an aft inner skin, and an inner thrust reverser door. The outer articulating panel is configured to pivot to vary a nozzle exit area. The forward inner skin is configured to pivot to vary a nozzle throat area. The outer thrust reverser door is pivotally coupled to the outer skin. The inner thrust reverser door is pivotally coupled to the aft inner skin. The outer articulating panel and the inner articulating panel may be individually operated to independently vary the exhaust nozzle throat area and/or the exhaust nozzle exit area.

Abstract: A gas turbine engine which includes an outer casing; a central longitudinal hollow shaft with a forward air inlet; a three stage rotating superconducting electric bypass fan with front and rear fan blades and a diffuser blade interposed between said front and rear fan blades wherein the diffuser blade rotates in an opposite direction to the front and rear fan blades; a multiple stage superconducting axial compressor positioned aft of the three stage rotating superconducting electric bypass fan; a multiple stage superconducting electric turbine core positioned aft of the multiple stage variable speed superconducting axial compressor, whereby the electric power from the multiple stage superconducting electric turbine core powers the three stage superconducting electric bypass fan and the multiple stage superconducting axial compressor.

Abstract: In order to reduce the friction of a dry-running solenoid valve (1) with a valve housing (2), in which an electric coil (3) and a magnet armature (5) are arranged, and with a valve element (8) which can be actuated by the magnet armature (5) in an axial actuating direction for opening and closing the solenoid valve (1), in which the coil (3) generates a magnetic flux which, when the solenoid valve (1) is actuated, flows via a magnetically conductive valve housing outer wall (2c) of the valve housing (2) to the magnet armature (5), it is provided according to the invention that a magnetically conductive flux element (12) be provided in the valve housing (2) and introduce at least 80%, preferably at least 90%, and particularly preferably 100%, of the magnetic flux flowing over the valve housing outer wall (2c) into an armature end face (5B), facing the coil (3), of the magnet armature (5).

Abstract: An air cleaner device that is positioned forward of a radiator, has a bottom surface inclined backward and upward to face the radiator side, and purifies air sent to an engine, and a discharge pipe that is disposed to extend from the bottom surface of the air cleaner device to the lower portion of the radiator and discharges dust separated by the air cleaner device are included.

Abstract: A filtration system for a fuel system for a marine vessel engine. The system comprising: an inlet for fluid connection to a settling tank; an outlet for fluid connection to a service tank; and an arrangement of plural primary filtration devices The arrangement is fluidly connected between the inlet and outlet so that fuel flowing from the settling tank via the inlet to the service tank via the outlet passes through at least one of the primary filtration devices. The system is configured so that each respective primary filtration device operates, independently of each other primary filtration device in: a first mode, in which the fuel flows in a first direction through a filter of the respective primary filtration device to remove contaminants from the fuel, or a second mode, in which a fluid flows through the filter in a second direction, opposite the first direction, to dislodge the contaminants.

Abstract: An injector seal assembly including a nozzle combustion shield is disclosed, the thermally conductive component of the injector seal assembly defining at least one groove to allow fluid communication between the main combustion chamber and a gap defined by a fuel injector and the injector seal assembly to facilitate the prevention of corrosion of the components.

Abstract: A fluid distributor rail for an injection system for mixture-compressing, externally ignited internal combustion engines for metering a highly pressurized fluid. The fluid distributor rail includes a base body, and at least one connector configured on the base body. The base body with the at least one connector configured on the base body is formed by single stage or multistage forging. At least one interior space of the base body and a hydraulic fluid passage which leads into the interior space via the at least one connector configured on the base body are formed on the base body by machining after the forging. At least one element for connection is formed at least in part by mechanical cold-forming on at least one connector configured on the base body.

Abstract: A control device of a vehicle, the vehicle includes an engine, a hydraulic clutch disposed on a power transmission path between the engine and driving wheels, a starter motor for use in startup of the engine, an electric oil pump device discharging hydraulic oil generating oil pressure supplied to the clutch, and a power supply device supplying electric power driving each of the starter motor and the electric oil pump device. The control device includes a startup control unit that performs starter startup control of starting discharge of the hydraulic oil by the electric oil pump device after determining that output voltage of the power supply device or input voltage of the electric oil pump device is higher than or equal to a fixed voltage after completion of cranking by the starter motor upon startup of the engine using the starter motor.

Abstract: There is provided a starter system including: a starter motor configured to start an engine rotationally; an electronic control unit configured to control the engine; a battery that supplies a current to the starter motor; a starter switch capable of supplying the current of the battery to the starter motor in response to an operation by a user; a first circuit that supplies a starter signal indicating that the starter switch is operated to the electronic control unit; and a second circuit that supplies a current necessary for driving to the electronic control unit. The electronic control unit starts a control operation of the engine when there are both of the starter signal input from the first circuit and the current input from the second circuit.

Abstract: The control device (50) operates to: calculate the ignition timing of each cylinder (101) of an engine (100) based on whether or not knocking is occurring; set, as a reference ignition timing, the ignition timing of any of the cylinders (101) for which the ignition timing is on the advanced angle side relative to the most retarded angle ignition timing on the most retarded angle side and on the retarded angle side relative to the most advanced angle ignition timing on the most advanced angle side; set an allowable timing difference range that is a range of an allowable timing difference with reference to the reference ignition timing; and when determining that the ignition timing of a cylinder (101) falls outside the allowable timing difference range, correct the ignition timing so that the timing difference with respect to the reference ignition timing falls within the allowable timing difference range.

Abstract: A variable-head hydroelectric power plant having an upstream intake works adapted to intercept at least partially the water coming from a source, a pipeline connected to the upstream intake works to receive and channel therein, at least partially, the water intercepted by the upstream intake works is disclosed. The power plant further includes a floating platform, adapted to be arranged and to float on the surface of a basin, and a hydraulic turbine arranged on the floating platform and connected to the pipeline to receive the water coming from the pipeline.

Abstract: An apparatus and method is disclosed for extracting energy from an oscillating working fluid, such as ocean waves. The apparatus (10) comprises an internal flow passage (40) for the working fluid, a turbine (44) and a flow control device (38), each of the turbine (44) and the flow control device (38) being in direct fluid communication with the flow passage (40), wherein in use the flow control device (38) is selectively moveable between a first configuration in which the flow control device (38) is open to allow a flow of the working fluid, such as air, to exit the flow passage (40) therethrough, and a second configuration in which the flow control device (38) restricts a flow of the working fluid therethrough. In such an instance, the working fluid then must enter the flow passage (40) via the turbine (44), which can be harnessed to generate electricity.

Abstract: A method for controlling the rotor speed of a floating wind turbine including a floating foundation, a tower, a nacelle and a wind rotor having at least one wind blade includes the steps of: identifying a plurality of critical frequencies of the floating wind turbine, calculating a first plurality of critical rotor speeds of the wind rotor respectively corresponding to each critical frequency, calculating at least a second plurality of critical rotor speeds of the wind rotor by dividing each critical rotor speed of the first plurality of critical rotor speeds by a frequency coefficient, for each calculated critical rotor speed being lower than a maximum operational speed of the wind rotor defining a critical speed interval including the respective critical rotor speed, and operating the wind rotor at an operative rotor speed outside each defined critical speed interval.

Abstract: A method for controlling wind farm operation during a weak grid condition includes determining when a threshold number of the plurality of wind turbines have tripped based on the received one or more inputs. Furthermore, the method includes determining a sampled power output of the wind farm based on received sensor data after it is determined that the threshold number of the plurality of wind turbines have tripped. Additionally, the method includes controlling the operation of the one or more wind turbines of the plurality of wind turbines that have not tripped after it is determined that the threshold number of the plurality of wind turbines have tripped such that the power output of the one or more wind turbines of the plurality of wind turbines that have not tripped is less than or equal to the sampled power output.

Abstract: A method of operating a wind turbine is provided. A controller is configured to activate or deactivate each of two or more distinct control features, each control feature changing the operating characteristic of the wind turbine and having an impact on at least one of lifetime and energy production . The method includes determining a type of optimization parameter and an optimization target for the optimization parameter, wherein the optimization parameter is related to at least one of lifetime or energy production of the wind turbine. The method further performs one or more optimization steps, wherein each optimization step is performed for a different combination of activation states of the two or more control features. Based on the one or more optimization steps, an optimal combination of activation states of the two or more control features for which the estimated optimization parameter achieves the optimization target is determined.

Abstract: Systems and methods of autonomous farm-level control and optimization of wind turbines are provided. Exemplary embodiments comprise a site controller running on a site server. The site controller collects and analyzes yaw control data of a plurality of wind turbines and wind direction data relating to the plurality of wind turbines. The site server determines collective wind direction across an area occupied by the plurality of wind turbines and sends yaw control signals including desired nacelle yaw position instructions to the plurality of wind turbines. The site controller performs wake modeling analysis and determines desired nacelle positions of one or more of the plurality of wind turbines. The desired nacelle yaw position instructions systematically correct static yaw misalignment for all of the plurality of wind turbines. Embodiments of the disclosure provide means to perform whole site or partial site level controls of the yaw controllers of a utility scale wind turbine farm.

Abstract: A power generation system includes a flotation assembly configured to float in water and a first harnessing assembly coupled to the flotation assembly and disposed in an airflow above the water. The first harnessing assembly is configured to harness the airflow to create a first rotational energy. The system also includes a second harnessing assembly coupled to the flotation assembly and disposed in the water. The second rotational assembly is configured to harness movement of the water to create a second rotational energy. The flotation assembly also includes a generating module to convert the first and second rotational energies into electrical energy.

Abstract: A wind turbine system comprising: a wind turbine; and a monitoring system, wherein the wind turbine comprises: a tower; an arm extending from the tower, a rotor-nacelle assembly (RNA) carried by the arm; and a Global Navigation Satellite System (GNSS) sensor carried by the arm or the RNA. The monitoring system is configured to receive position data from the GNSS sensor and obtain a moment or force measurement on the basis of the position data.

Abstract: A rotation limit detector, wind turbine and method to detect a limit of rotation of a toothed ring of a rotating assembly includes a pinion mounted on a primary shaft to engage with the toothed ring; a transmission system configured to convert rotation of the primary shaft into rotation of a secondary shaft; a first switch actuator mounted on the secondary shaft, and a first switch for inclusion in a control circuit, wherein the first switch actuator is configured to actuate the first switch when the extent of rotation of the toothed ring has reached a predefined limit in a clockwise direction; and a second switch actuator mounted on the secondary shaft, and a second switch for inclusion in the control circuit, wherein the second switch actuator actuates the second switch when the extent of rotation of the toothed ring has reached a predefined limit in a counter-clockwise direction.

Abstract: A wind turbine blade comprising a lightning protection system, which is at least partly disposed in an inboard portion of the blade. The lightning protection system comprises a plurality of inboard down conductor cables and a diverging electrical junction. The lightning protection system may comprise a down conductor cable having root and tip portions having insulation with different electrical breakdown voltages and/or a down conductor cable portion and a supporting component to hold the cable portion in free space in a position near or on a camber line of the blade aerofoil section, so that the cable portion is spaced apart from at least one electrically conductive structural component.

Abstract: A wind turbine blade comprising a lightning protection system, which is at least partly disposed in an inboard portion of the blade. The lightning protection system comprises a down conductor cable portion and a supporting component to hold the cable portion in free space in a position near or on a camber line of the blade aerofoil section, so that the cable portion is spaced apart from at least one electrically conductive structural component. The lightning protection system may comprise a plurality of inboard down conductor cables and a diverging electrical junction; and/or a down conductor cable having root and tip portions having insulation with different electrical breakdown voltages.

Abstract: A wind turbine blade comprising a lightning protection system, which is at least partly disposed in an inboard portion of the blade. The lightning protection system comprises a down conductor cable having root and tip portions having insulation with different electrical breakdown voltages. The lightning protection system may comprise a down conductor cable portion and a supporting component to hold the cable portion in free space in a position near or on a camber line of the blade aerofoil section, so that the cable portion is spaced apart from at least one electrically conductive structural component; and/or a plurality of inboard down conductor cables and a diverging electrical junction.

Abstract: A lightning protection system for the joint of a modular blade. The joint comprises a number of coated metal elements by Xpacer equipotentially bonded with a number of stacks disposed at the sides of the upper cap and the lower cap and with the lightning down-drop. The preforms of the joint include two stacks at the leading edge and another two stacks at the trailing edge. The stacks are formed by layers of carbon fibre and layers of glass fibre, replaced by copper mesh as from the equipotentiation line. The stack incorporates at the side thereof a metal strip joined to the metal strip that links the tip cap and the root cap, and is coated with a layer of glass fibre.

Abstract: A method for identifying an accumulation of ice on at least one rotor blade of a wind turbine includes a number of steps. First, operating and ambient conditions during operation of the wind turbine are determined. An electrical output of the wind turbine that is to be expected under the operating and ambient conditions is determined. An electrical output that is actually generated by the wind turbine is measured, and the expected electrical output of the wind turbine is compared with the electrical output actually generated by same. Depending on the result of the comparison, whether the at least one rotor blade is free of ice is determined with a high level of probability and vibrations of the at least one rotor blade are detected. Characteristic properties of the vibrations are detected and stored as a reference for the device for identifying an accumulation of ice, if, in the comparison, it was determined with a high level of probability that the at least one rotor blade is free of ice.

Abstract: A method for protecting a novel anti-drop submarine cable includes: assembling a traction assembly, a standard bending protection section and a protection reinforcement section sequentially to form a submarine-cable-protection device, and a submarine cable passing through it; connecting a traction rope of the traction assembly to a reserved traction rope pre-buried in a single pile foundation, and enabling the submarine cable and the submarine-cable-protection device by a traction device passing through a reserved hole of the foundation; moving the assembled sets forward until the traction rope is lifted and unmovable, enabling a retaining ring of the protection reinforcement section to abut against the reserved hole, installing the traction rope on the foundation by shackles; pulling the reserved traction rope to a proper length, fixing the submarine cable to installation base.

Abstract: Concentrated solar power and heating systems using solar receivers, and related devices and methods, are generally described.

Abstract: A fluid end comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is releasably attached to a connect plate. Each connect plate is attached to a power source using a plurality of stay rods. Each fluid end section comprises a housing in fluid communication with a pair of intake manifolds and a discharge conduit. A fluid routing plug is installed within each housing and is configured to route fluid throughout the housing. A plunger is installed within stuffing box attached to each housing. A number of features, including the location of seals within bore walls and carbide inserts within valve guides, aid in reducing or transferring wear.

Abstract: A water resistance apparatus used for an oil cylinder, the oil cylinder including a press cover (10) and a piston rod (20) passing within press cover (10), and the water resistance apparatus including: a fluid inlet (14), which is arranged on the press cover (10); a fluid outlet (16), which is arranged on the press cover (10), the fluid outlet (16) and the fluid inlet (14) being in a staggered arrangement; a seal assembly (30), the seal assembly (30) being arranged between the press cover (10) and the piston rod (20); a fluid input assembly (40), the fluid input assembly (40) being connected with the fluid inlet (14); a fluid output assembly (70), the fluid output assembly (70) being connected with the fluid outlet (16).

Abstract: An electric air pump includes a housing, a cover body, an inflation module, and a control module. The housing is provided with a first vent port. The cover body covers the housing, and the cover body is provided with a second vent port. The inflation module is disposed in the housing. The control module is disposed in the housing, and the control module comprises a control circuit board and an air pressure detection unit. The air pressure detection unit is disposed on the control circuit board, and the control circuit board is electrically connected to the inflation module and configured for performing controlling.

Abstract: A process for internally cooling an inline compressor comprises the steps of providing a compression chamber between an outer cylinder and an intermediate cylinder and a drive chamber between the intermediate cylinder and a piston; admitting gas into the compression chamber; pumping drive fluid through the piston into the drive chamber to extend the intermediate cylinder and compress the compression chamber and the gas in the compression chamber; allowing heat from the compressed gas to transfer to the drive fluid; allowing the compressed gas to exit the compression chamber; allowing the withdrawal of the drive fluid from the drive chamber; passing the withdrawn drive fluid through a heat exchanger to cool the drive fluid for reuse in extending the intermediate cylinder.

Abstract: The disclosure relates to a three-stage reciprocating compressor comprising pistons and suction and compression chambers in which a medium is compressed for each separate stage, which stages are connected in series and where a first stage is fluidly connected to an inlet for inlet of uncompressed or pre-compressed gas where the three-stage pistons move synchronously along a common axis in one connected unit such that the first and second stage suction and compression chambers share piston as well as cylinder wall, and having separate cylinder heads, a top headpiece and a bottom headpiece on each side of the piston, the third stage piston extending from a center of the first and second stage common piston and is passed through an opening in the cylinder head of the first stage suction and compression chamber, in extension of which is placed a third stage cylinder tube with a smaller diameter than a diameter of the cylinder for stage one and two, each stage fluidly separated by one or more one way valves, where

Abstract: A fluid-handling cassette comprising a plurality of diaphragm valves and pumps is configured to have its actuation ports located along a thin or narrow edge of the cassette. Actuation channel % within the cassette lead from the actuation ports to actuation chambers of the valves and pumps in a space between plates that comprise the cassette. The individual plates have a nominal thickness that is sufficient to provide a rigid ceiling for the actuation channels, but sufficiently thin to minimize the overall thickness of the cassette. The cassette can be plugged into or unplugged from an actuation receptacle or a manifold by its narrow edge. A plurality of such cassettes can be stacked together or spaced apart from each other to form a cassette assembly, providing for a convenient way to install and remove the cassette assembly from its actuation receptacle.

Abstract: Systems/methods for real-time monitoring and control of a well site provide an event monitor and detector for progressing cavity pump (PCP) operations at the well site. The event monitor and detector uses machine learning (ML) based anomaly detection to detect operations that fall outside normal PCP operating space. The event monitor and detector then computes novelty scores for the anomalies and checks whether the novelty scores exceed a threshold novelty score. If the number of novelties detected within a given detection window exceeds a minimum threshold count, then the event monitor and detector flags an “event” and automatically responds accordingly. The event monitor and detector also provides an explanation with the alerts that quantifies the extent to which various PCP parameters contributed to the event. The event monitor and detector further performs drift detection to determine whether an event may be due to operator-initiated adjustments to PCP parameters.

Abstract: System/method for real-time monitoring and control of pump operations at a well provide a pump control system that uses pump fillage with a proportional-integral-differential (PID) based algorithm to control positive displacement pump operations. The pump control system/method obtains measured or inferred pump speed from available pump speed data and, using certain pump characteristics provided by the well operator, calculates a theoretical fluid flow rate based on the pump speed. The pump control system/method thereafter compares the calculated theoretical fluid flow rate to a measured or observed fluid flow rate to calculate a pump fillage. The calculated pump fillage is then provided as a process input to the PID based algorithm along with a desired pump fillage from the well operator. The PID based algorithm processes the calculated pump fillage and the desired pump fillage using tuning parameters to determine an optimum pump speed based on the desired pump fillage.

Abstract: An internal gear pump or motor includes inner and outer rotors that mesh together. An internal electric motor or generator may include a stator supported by a support element that passes through bearings of the outer rotor and the inner rotor may act as a rotor of the electric motor or generator. With or without the stator, the support element may support bearings of the inner rotor. The support element may be, for example, an eccentric shaft. Fluids may be supplied via the support element, if present, for cooling, lubrication or to flush a working fluid out of portions of the pump or motor, such as bearings. Flushing may also occur via channels in the housing with or without the presence of the support element. Axial faces of one of a pair of adjacent elements, for example the inner rotor and the outer rotor, may include portions for improved axial sealing and wearing in of the other of the pair.