288results about "External parameter" patented technology

A lockout system for a metering pump is provided. The lockout system can include a user interface that is used to switch the pump between a locked configuration and an unlocked configuration. In the locked configuration, the operation of the pump cannot be adjusted through the user interface. In the unlocked configuration, the operation of the pump can be adjusted through the user interface. The lockout system can include a passkey notice that provides information regarding how to use the user interface to switch the pump between the locked and unlocked configurations.

A cooling system for an electric drive assembly, being used for providing lubricating oil for the electric drive assembly. The electric drive assembly comprises an electric motor assembly and a variable-speed gear set, and the cooling system comprises a mechanical oil pump (10) and an electronic oil pump (20), the mechanical oil pump (10) being configured to be drivingly connected to the variable-speed gear set. The mechanical oil pump (10) can rotate along with the electric drive assembly to provide circulating power for cooling oil, and the electronic oil pump (20) is configured to provide circulating power for the cooling oil when the temperature of the cooling oil is higher than a first preset temperature and a vehicle speed is lower than a first preset vehicle speed. Further provided are an electric drive assembly, a vehicle, and a control method.

A portable fluid tank system can include wireless control capabilities. The portable fluid tank system can include a fluid tank with an internal volume for fluid storage and a fluid actuation system for controlled fluid movement and pressurization. An electronics housing within the portable fluid tank system can accommodate a removable energy storage device, providing power to the actuation system. The portable fluid tank system can include a multi-state control interface, facilitating direct user interaction or remote operation via a wireless communication module. The module can receive and execute commands from a remote transmitting device, enabling remote activation and control of the fluid actuation system.

A method includes commanding a motor coolant control valve to open at a first time to provide a supply of coolant to a motor coolant flow channel that delivers coolant to a motor of a compressor. A first detection of a coolant return temperature is received at a first time from a temperature sensor connected to a coolant return line that receives coolant from the motor coolant flow channel and returns coolant to another portion of the compressor. A second detection of the coolant return temperature from the temperature sensor is received at a second time after the first time. Based on the first detection and the second detection of the coolant return temperature, it is determined if the motor coolant control valve opened at the first time, and remedial action is taken when the motor coolant control valve is determined not to have opened at the first time.

A pump having a motor, an inlet port, a discharge port, a fluid sensor, and a controller is provided. The fluid sensor is configured to detect whether a fluid level has risen above a threshold fluid level. The controller is configured to activate the pump in response to the fluid sensor detecting that the fluid level has risen above the threshold fluid level, initiate a shutoff delay timer in response to the fluid sensor detecting that the fluid level has receded below the threshold fluid level, the shutoff delay timer having a shutoff delay time, increase the shutoff delay time if the fluid sensor detects that the fluid level has risen above the threshold fluid level again before the shutoff delay time elapsed, and maintain the shutoff delay time if the fluid sensor detects that the fluid level stayed below the threshold fluid level until the shutoff delay time elapsed.

A method for controlling one or more frac pumps of a fracturing spread. The method comprises adjusting a total pump rate of one or more target pumps of the frac pumps to achieve a total rate setpoint for the frac pumps. The method comprises activating one or more trim pumps for an additional pump rate to compensate for a total rate dip occurring when the total pump rate of the one or more target pumps is adjusted.

A dispensing pump having a calibration system including a base including an upper base portion having a first end for mounting a motor and a second end and a lower base portion for mounting a pump on a first end and a second end. A hinge pivotally connects the second end of the upper base portion and the second end of the lower base portion. A linear actuator is mounted on the base and includes a drive rod having a coupler secured to an end thereof. The coupler joins the drive rod to a first end of a connecting member. A second end of the connecting member is secured to the lower base portion. An attachment plate attaches the motor to the first end of the upper base portion. The attachment plate extends outwardly from the motor for mounting the linear actuator. A proximity sensor is secured to the base upper position. A flag is secured to the drive rod coupler, wherein the flag moves directly with the drive rod. The flag includes a body and a calibration element projecting therefrom. The calibration element is positionally adjustable relative to the flag body. The calibration element is adapted to activate the proximity sensor when the linear drive is in a home position. The home position is adjustable upon adjustment of the calibration member. An actuation of the linear actuator drives the connecting member causing the lower base portion and upper base portion to pivot with respect to each other about the hinge, thereby changing an angle between the lower base portion and the upper base portion.

[Problem] To provide a control calibration apparatus for a variable displacement pump and a method therefor, which can increase the accuracy of flow control of the variable displacement pump. A control calibration device for a variable displacement pump (3) includes a controller (10) that outputs a current value for a flow rate command of the variable displacement pump (3) and a flow sensor (11) that measures a flow rate of the variable displacement pump (3). The controller (10) has a function for obtaining a quadratic function formula from a first current value when the maximum flow rate of the variable pump (3) is measured by the flow sensor (11), a second current value when the minimum flow rate of the variable pump (3) is measured by the flow sensor (11), and a fixed current value corresponding to a fixed flow rate based on the specification of the variable pump (3), the quadratic function formula is a current flow characteristic for flow control of the variable pump (3).

An analytical instrument having a syringe size identification functionality includes a syringe pump with syringe having size Vsyri, an electric drive, a valve downstream of the syringe, a pressure sensor between the syringe and the valve, a constant downstream volume Vc and a processor configured to control the electric drive to move the plunger from L0 for detecting pressure P1 to a pressure detection position Ld for detecting P2 using the pressure sensor. The processor is configured to calculate the theoretical pressure P2* using a modified version of Boyle's law: P2*=P1(Vsyri+Vc) / (Vsyri(1−x)+Vc) and compare the theoretical pressure P2* with the detected pressure P2. When the theoretical pressure P2* equals the detected pressure P2, the analytical system is released for use.

A compressor for a commercial vehicle comprises:a plurality of cylinders, wherein each cylinder accommodates a reciprocating piston, wherein the reciprocating piston is driven by a crankshaft, anda plurality of cooling means, arranged at a cylinder head region of the cylinder, wherein one specific cooling means is assigned to one cylinder respectively.The compressor assembly comprises a sensor network, wherein the sensor network comprises a plurality of temperature sensitive switches, whereineach temperature sensitive switch is assigned to a cylinder.

A pump system can include a tube disposed about a rotor. The rotor can be configured to drive fluid through the tube as the rotor rotates. The tube can be replaceable when the tube fails. The pump system can include a processor configured to determine a predicted number of revolutions of the rotor before the tube fails based on a number n of past tube failure detection (TFD) events. Each past TFD event can have a corresponding nth TFD value based at least in part on the number of revolutions the rotor had rotated before the tube failed. When n=0, the predicted number of revolutions can be set to a putative value, and when n=1, the predicted number of revolutions can be based at least in part on the first TFD value and the putative value.

Disclosed are a device for supplying liquid at a constant amount and a method for controlling the same, and the device for supplying liquid at a constant amount comprises a constant amount chamber, an input pump, an output pump, a liquid level detection device, and a controller; the input pump is provided with an input pump liquid feeding pipe and an input pump liquid discharging pipe; the output pump is provided with an output pump liquid feeding pipe and an output pump liquid discharging pipe; the input pump, the output pump, and the liquid level detection device are each in matched connection with the controller. In the present invention, by cyclic operation, a liquid volume between a high liquid level and a low liquid level is delivered at a constant amount in each cycle, so that liquid fuel is supplied at a constant amount.

A sump pump system and shelf system for storing a second sump pump is disclosed. The sump pump system may have a sump pump basin, first sump pump, first discharge pipe, a shelf system, a second sump pump stored on the shelf system, and second discharge pipe is disclosed / Shelf system has a shelf secured to the first discharge pipe and a support member of the shelf system raises shelf above at least a portion of the first sump pump. The shelf is secured to the first discharge pipe and placed on the support member. The shelf provides a stabilizing surface for the second sump pump above the first sump pump while maintaining a compact sump pump system. The shelf is shaped to align with a curve of the sump pump basin and to be able to be placed over one or more components of the first sump pump.

A system and method to control operation of an air compressor of a vehicle is disclosed. The system may include a transceiver and a processor communicatively coupled with each other. The transceiver may be configured to receive vehicle information from a vehicle control unit. The vehicle information may include a vehicle type and real-time vehicle operational parameters. The processor may obtain the vehicle information from the transceiver and determine that a predefined condition may be met based on the vehicle type and the real-time vehicle operational parameters. The processor may further control an air compressor operation based on the vehicle type and the real-time vehicle operational parameters, responsive to determining that the predefined condition may be met.

An example system includes a fluid end having a block, a fluid inlet formed in the block, and a fluid outlet formed in the block. The system also includes an intake manifold fluidly coupled to the fluid inlet, and a fluid conduit fluidly coupled to the fluid outlet and the intake manifold. The system further includes a valve fluidly coupled to the fluid conduit, the valve configured to control fluid flow through the fluid conduit, an actuator coupled to the valve and configured to position the valve in an open position or a closed position, and a controller communicatively coupled to the actuator and configured to send one or more signals to the actuator, causing the actuator to position the valve in the open position or the closed position.

A computer system for flood monitoring and insurance provider notification, the computer system may include one or more processors configured to: detect a flood event in a structure, transmit information associated with the structure and a prompt for flood reimbursement services to a machine learning (ML) chatbot to cause the ML chatbot to file a flood reimbursement claim with an insurance provider having an insurance policy associated with the structure via telephone by converting a text output into a voice output.

To provide a vibration sensor unit, a rotary electric machine and a pump device that can be used within a wide temperature range and are less likely to cause a failure due to vibration.SOLUTION: A vibration sensor unit 5 includes: a conductor 7 which has at least one coil part 70 wound in a circular coil shape; a body part 6 which is made of a magnetic material and positioned so as to be in contact with the inside of the coil part; a power supply 81 which supplies a constant current to the coil part; and a vibration detection part 822 which detects vibration on the basis of a change in the AC component of the voltage generated in the conductor. A rotating shaft has a cylindrical outer peripheral surface 322. The body part has an annular shape to which the rotating shaft can be inserted or has a shape in which a portion of the annular shape is cut out along a circumferential direction of the coil part. When the rotating shaft is arranged inside the body part so as to rotate in the circumferential direction of the coil part, a portion of the rotating shaft arranged inside the body part is made of a conductive or magnetic material. An inner peripheral surface 61 of the body part is arranged with a gap from the outer peripheral surface of the rotating shaft.SELECTED DRAWING: Figure 2

A portable fluid tank system can include wireless control capabilities. The portable fluid tank system can include a fluid tank with an internal volume for fluid storage and a fluid actuation system for controlled fluid movement and pressurization. An electronics housing within the portable fluid tank system can accommodate a removable energy storage device, providing power to the actuation system. The portable fluid tank system can include a multi-state control interface, facilitating direct user interaction or remote operation via a wireless communication module. The module can receive and execute commands from a remote transmitting device, enabling remote activation and control of the fluid actuation system.

Method for controlling a compressor (10) which drives a pneumatic tool, with a maximum allowed pressure (p_max) and an associated compressed air consumption (q_max), the method comprising the step of regulating the operating pressure (p_compr) of the compressor (10), said method comprising: - if the operating pressure (p_compr) is lower than p_max minus a value (Z): controlling the compressor (10) such that the flow rate supplied by the compressor (10) is not limited; - if the operating pressure (p_compr) is higher than or equal to p_max: controlling the compressor (10) such that the flow rate supplied by the compressor (10) does not exceed the compressed air consumption (q_max) at p_max; - if the operating pressure (p_compr) is higher than p_max minus the value (Z) and is lower p_max: controlling the compressor (10) such that the operating pressure (p_compr) remains lower than p_max.

A method for optimizing a system for pressurized fluid comprising a piping network (1) which is provided with an inlet (2) and multiple outlets (3), subjected to a varying load, comprising the steps of : - determining minimum pressures (PPOi req) required at the outlets ( 3 ); - determining a measuring period (ΔTm); - measuring outlet pressures (PPOi) during the measuring period (ΔTm); - calculating corresponding overpressures (OPPOi); - finding the minimal overpressure (OPPOi min) - finding the smallest minimal overpressure (SMO) occurring in the piping network (1); - decreasing the inlet pressure (PIN) with SMO, when SMO > 0; and, - evaluating other rearrangements when SMO ≤ 0.

A method for determining a vacuum degree threshold value. The method comprises: acquiring the current altitude signal of a vehicle; when the current altitude signal is invalid, acquiring a vacuum degree threshold value and a standard working time, which correspond to a historical altitude signal that was received by an electronic vacuum pump of the vehicle last time, wherein the vacuum degree threshold value comprises a vacuum degree turn-on threshold value and a vacuum degree turn-off threshold value, and the standard working time comprises a preset working time of the electronic vacuum pump corresponding to the historical altitude signal; acquiring the actual working time of the vacuum degree threshold value corresponding to the historical altitude signal of the electronic vacuum pump when the current working cycle is completed; and when the difference between the actual working time and the standard working time exceeds a preset range, updating, according to the difference, the vacuum degree threshold value corresponding to the historical altitude signal, and taking the updated vacuum degree threshold value as a target vacuum degree threshold value of the next working cycle. When an altitude signal is invalid, a target vacuum degree threshold value of the next working cycle can be determined. Further provided are an apparatus for determining a vacuum degree threshold value, and a computer storage medium, an electronic device and a computer program.

A dispensing pump includes a linear actuator mounted on a base. The linear actuator includes a drive rod having a coupler. The coupler joins the drive rod to a first end of a connecting member. A second end of the connecting member is secured to a lower base portion of the base. An attachment plate attaches a motor to a first end of an upper base portion of the base. A flag is secured to the drive rod coupler, wherein the flag moves directly with the drive rod. The flag includes a body and a calibration element. The calibration element is positionally adjustable relative to the flag body. The calibration element is adapted to activate a proximity sensor when the linear drive is in a home position. The home position is adjustable upon adjustment of the calibration member.

A hardware (e.g., a process and / or circuitry) and / or software-based controller for septic system grinder or chopper units monitors load to the unit. As the unit encounters debris, electrical and mechanical load on the unit increases. In some cases, a signal to stop the unit from grinding / chopping (including but not limited to a signal based a waste-water level) is received while the unit is under the increased load. The controller may override the stop signal and continue sending power to the unit to clear the unit from debris causing increased load. The override may cease when it is determined that the debris has been cleared, such as when it is determined that the increased mechanical and / or electrical load on the unit has decreased or returned to a target load, allowing the unit to stop. The unit may include self-configuration functionality, determining thresholds for signaling override, target load, etc.

A computer system for sump pump monitoring and repair service provider notification may include one or more processors configured to: detect that a sump pump is faulty, transmit a prompt for service quotes to a machine learning (ML) chatbot to cause the ML chatbot to: request sump pump replacement or repair services from one or more service providers, receive cost estimates from the one or more repair service providers, receive schedule availability from the one or more repair service providers, receive, from the ML chatbot, the cost estimates and the schedule availability, and communicate the cost estimates and / or the schedule availability to a user associated with the sump pump.

A gas compressor includes a gas compressor machine body, a motor to drive the body, a temperature sensor (108, 109) for measuring the body's temperature, and a cooling fan (106) on a shaft (103) transmitting power to the body. A control unit (110) manages the gas compressor. This control unit (110) adjusts a temperature threshold value in response to the frequency of the input to the motor. It issues a notification if the temperature measured by the sensor (108, 109) surpasses this threshold. Notably, the temperature threshold value set when the motor input frequency is high is equal to or lower than the threshold value set when the motor input frequency is low.

Provided is a technology capable of reducing pressure loss due to cooling of a compressed gas.　A gas compressor 100 comprises: a bypass passage 11 for bypassing an aftercooler 10; a bypass valve 13 provided in the bypass passage 11; a cooler bypass valve 12 provided between a connection part 19b and the aftercooler 10; an ammeter 16 for detecting a current value of a motor 1; a temperature sensor 14 for detecting a temperature of a compressed gas recovered from waste heat by a high-pressure stage waste heat recovery heat exchanger 9; a temperature sensor 22 for detecting a temperature around the gas compressor 100; and a control device 17 for opening and closing the bypass valve 13 and the cooler bypass valve 12 on the basis of the current value detected by the ammeter 16, the temperature detected by the temperature sensor 14, and the temperature detected by the temperature sensor 22.

This electric compressor control device comprises: a control unit of an inverter which controls a motor that drives a compressor; a physical quantity calculation unit which calculates, on the basis of one or a plurality of predetermined detection values acquired from the inverter, a physical quantity that varies depending on a workload of the compressor; a number-of-revolutions acquisition unit which acquires the number of revolutions of the motor; a storage unit which stores information representing a first threshold that varies depending on the number of revolutions of the motor, and defines whether or not the physical quantity is a normal value; and a refrigerant abnormality determination unit which determines whether or not there is an abnormality in a refrigerant system by comparing the calculated physical quantity with the first threshold, depending on the acquired number of revolutions.

Provided compressor control module, CCM, adapted to control an output of a variable displacement swash plate compressor, it is an object of the present invention to improve the efficiency of the compressor. The object is solved by: either directly calculate, or receive from an external source, for example the HVAC control unit, a signal indicating the desired or required output from the variable displacement swash plate compressor (30), also referred to as control target or set value, for example, but not limited to, a suction pressure, a piston stroke length, an evaporator outlet air temperature, a refrigerant mass flow and / or a work done on fluid; receive the current / actual value of the value; receive or calculate the current rotation speed and angle, with respect to the rotation axis, of the swash plate, or the current piston stroke length and its reciprocating frequency, respectively, (48) of the variable displacement swash plate compressor; receive or calculate optionally additional current values of the compressor, the air conditioning system or from the vehicle, like the discharge pressure, the crank case pressure, the delta pressure between suction pressure and crank case pressure, the evaporator outlet air temperature, the engine speed, but not limited to; determine the difference between the desired or required output from the variable displacement swash plate compressor and the current output of the variable displacement swash plate compressor; and output a signal to the valve driving unit which will adjust the angle of the swash plate (48) such that the actual output of the variable displacement swash plate compressor becomes closer to, or the same as, the desired or required output as obtained in step a), also taking into account the additional values received or calculated in c) and d).

A method for controlling a medical device. The method includes providing a conduit coupled to a pump, the pump configured to selectively provide a pressure in the conduit, a motor configured to selectively drive the pump at an operating frequency to provide the pressure in the conduit, and a controller configured to selectively drive the motor and monitor the medical device. The method includes selectively driving the motor at an indicating frequency that is different from the operating frequency when the controller identifies a value outside of a threshold for the medical device. The indicating frequency produces an indicating audible or haptic feedback that is greater than an operating audible or haptic feedback provided at the operating frequency.

Provided is a fluid equipment state monitoring device capable of making a diagnosis frequently.　A fluid equipment state monitoring device 102 diagnoses a state of a pressure accumulation device 5 in a fluid pressure circuit 101 provided with a pump 2, the pressure accumulation device 5, and a supplied-side circuit 8 to which fluid is supplied from the pump 2 and the pressure accumulation device 5. The fluid equipment state monitoring device is provided with: a pressure detection means 6 capable of detecting a pressure of a working fluid in the fluid pressure circuit 101; a timer 10a; and a determination means 10 for detecting the pressure of the working fluid at least at two arbitrary points in time by using the pressure detection means 6 and the timer 10a, and determining the state of the pressure accumulation device 5.