17results about "Pump parameter" patented technology

Volumetric variable displacement machine interacting with an operating fluid, said machine being a motor with axial pistons or a pump with axial pistons and comprising: i) means (2) interacting with the operating fluid; ii) a housing casing (3) housing means (2) interacting with the operating fluid; iii) actuating means (4) for regulating a displacement of the machine; iv) a control unit (5) for controlling the actuating means (4); v) a detection sensor (6) for detecting a parameter associated with the adopted displacement of the machine and operationally connected to the control unit (5); vi) a protective casing (7) protecting the control unit (5) that is integrated into or physically constrained on said housing casing (3). The detection sensor (6) is placed inside the protective casing (7).

A suction valve control system of a fluid pump, that is configured to discharge fluid during a plurality of discharge cycles, may include a plurality of suction valves for respective cylinders of a fluid end of the fluid pump. The plurality of suction valves may be configured to close during the plurality of discharge cycles in accordance with a normal operation of the plurality of suction valves. The suction valve control system may include a controller configured to cause, responsive to a deactivating event for a cylinder of the respective cylinders, a suction valve of the cylinder to be maintained in an open position throughout one or more discharge cycles of the plurality of discharge cycles, while at least one other suction valve of the plurality of suction valves has the normal operation during the one or more discharge cycles.

A fluid dispenser with a fluid pump for dispensing fluid on movement of an actuator, and an air pump for delivering a stream of air through at least one sound generator on movement of the actuator. The sound generator produces at least two sounds as the actuator is moved from a first position to a second position, with each sound produced in a different time period during a cycle of operation, or differing from the other sound in respect of one or more detectable sound characteristics, such as duration, frequency, temporal alignment, amplitude, and / or timbre. The time period of each sound is a function of the relative location of the actuator between the first and second positions.

Pumping apparatus (3) comprising a first fluid machine (3A) and a second fluid machine (3B), each comprising a piston (4) and a guide (5) defining a first chamber (61) for compressing and expanding a fluid, the piston (4) and the guide (5) being movable relative to each other for compressing and expanding the fluid in the first chamber (61), the first fluid machine (3A) and the second fluid machine (3B) each also comprising a sealing device (7) disposed between the piston (4) and the guide (5), characterized in that it comprises a collection element (8) configured to collect at least a portion of the leaks that have migrated through the sealing device (7) of one of the machines (3A, 3B) and to direct these collected leaks into the first chamber (61) of the other fluid machine (3A, 3B). Abbreviated figure: Fig. 1

Pumping apparatus (3) comprising a first fluid machine (3A) and a second fluid machine (3B) each comprising a piston (4) and a guide (5) delimiting a first chamber (61) for compression and expansion of a fluid, the piston (4) and the guide (5) being movable relative to each other for the compression and expansion of the fluid in the first chamber (61), the first fluid machine (3A) and the second fluid machine (3B) each also comprising a sealing device (7) disposed between the piston (4) and the guide (5), characterized in that it comprises a collection element (8) configured to collect at least a part of the leaks which have migrated through the sealing device (7) of one of the machines (3A, 3B) and to direct these collected leaks into the first chamber (61) of the other of the fluid machines (3A, 3B).

An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.

Provided herein is a system and method for monitoring, troubleshooting, and providing predictive maintenance to pumps systems. The methods provided herein can utilize and / or interpret physical phenomena of pump systems and components thereof. The physical phenomena may include, but is not limited to, vibration, temperature, sound, or similar characteristics. Further, a cloud-based system can collect data from autonomously operated systems, to provide visualizations of collected data via a user interface, and analyze the collected data with various models to predict maintenance, determine optimizations, and facilitate troubleshooting of the systems.

A computer-implemented method for determining one or more application-specific control parameters of a pump operating in a system for moving a fluid, the method comprising: monitoring one or more operational variables of the pump during operation of the pump in said system; applying a trained machine-learning model to automatically determine an application type from the monitored operational variables, the application type representing a type of system the pump operates in and / or representing a type of operation performed by the pump when operating in said system, each application type being associated with a respective set of one or more application-specific control parameters; controlling the pump based on the set of one or more application-specific control parameters associated with the determined application type.

Embodiments of the present disclosure relate to a construction machine and a control method thereof. The construction machine includes an engine that generates power, a pump driven by the engine, an engine control unit that detects an intake air volume of the engine, a joystick that transmits an operation signal, and a vehicle control unit that receives the intake air volume detected by the engine control unit when the operation signal is received from the joystick, and that upwardly changes an increase rate of a pump torque of the pump when the intake air volume is at a certain level.

A method for monitoring an oil level of an oil-lubricated compressor, the method including: reading at least one oil level sensor, by which an oil level representing the compressor oil level is detected; checking compliance with at least one predetermined verification criterion for verification of the read-out oil level; and relaying an oil level signal if the read-out oil level complies with at least one relaying criterion according to whether the oil level reaches or falls below a predetermined oil level and with the at least one verification criterion.

A fracturing apparatus and a vibration reduction method thereof. The fracturing apparatus includes at least one fracturing unit and a processing device, the fracturing unit includes: a plunger pump; a low-pressure liquid inlet manifold; a high-pressure discharge manifold; a pressure detection device, configured to detect a pressure value of the low-pressure fluid in the low-pressure liquid inlet manifold; and a vibration detection device, configured to detect vibration intensity of the plunger pump, the processing device is respectively communicated with the plunger pump, the pressure detection device and the vibration detection device, and is configured to control the plunger pump according to the vibration intensity detected by the vibration detection device and the pressure value detected by the pressure detection device. The fracturing apparatus can improve the displacement stability and serve life of the plunger pump.

Method for determining a flow volume (21) of a fluid conveyed by a pump (1), wherein the flow volume (21) is determined as a function of a given pump information (17) dependent on a pump geometry, a rotational speed information (41) which correlates with the rotational speed (13) of the pump (1), and a pressure information (42) which correlates with a differential pressure (20) at the pump (1).

a Provide the vibration data 1a of the reciprocating part 12 of the reciprocating compressor 11, or the feature quantity 1b that can be calculated from the vibration data 1a. b Generate the input matrix 3 from the vibration data 1a or the feature quantity 1b. c Apply the model 4 to the input matrix 3 to execute the simulation. The model 4 is used to describe the error propagation in the closed system. Each simulation step results in an output matrix 5. Use the output matrix 5 of the nth simulation step as the input matrix 3' of the (n + 1)th step. f Select the parameter 6c from the values of the output matrices 5, 5'. g Determine the number of simulation steps required until the parameter 6c falls below the threshold 8a close to zero. Output this number as the simulation result 9. h Obtain a plurality of results 9, 9' by repeating steps a to g. i Fit a curve to the results 9, 9'. Calculate the time point 7 when the curve intersects the lower boundary 8c. The intersection point is regarded as an indicator of the occurrence of a failure and as an indicator of the predicted end time of the service life of the seal device 10.

The invention relates to a method (10-17) for operating a linear compressor (1, 1') of a domestic appliance (H), in which method a setpoint current profile (i~ ref) of an electrical current (i) to be applied to a drive coil (9A) of the linear compressor (1, 1') is calculated from a setpoint reversal position of a front reversal point (x+,max ref) of a piston (3) of the linear compressor (1, 1') and a front actual reversal position (x+,max) of the piston, a current (i) to be applied to the drive coil (9A) is regulated by means of the setpoint current profile (i- ref) and an actual current profile (i~), and the front actual reversal position (x+,max) is observed or measured. The invention also relates to a linear compressor (1, 1') of a domestic appliance (H) which is configured to carry out the method (10 - 17). The invention also relates to a household appliance (H) comprising a linear compressor (1, 1'), wherein the household appliance (H) is configured to carry out the method (10 - 17). The invention can in particular be advantageously applied to refrigeration appliances such as refrigerators, freezers or combinations thereof.

A pumping apparatus comprising a first fluid machine and a second fluid machine each comprising a piston and a guide delimiting a first chamber for the compression and expansion of a fluid, the piston and the guide being movable relative to each other for the compression and expansion of the fluid in the first chamber, the first fluid machine and the second fluid machine each also comprising a sealing device disposed between the piston and the guide, further comprising a collecting member configured to collect at least part of the leaks which have migrated through the sealing device of one of the machines and to direct these collected leaks into the first chamber of the other of the fluid machines.

A monitoring system for a hydraulic fracturing pump may include a sensor configured to output a signal based on measurements of a fluid parameter relating to the hydraulic fracturing pump, where the signal has a fixed relationship to a measurement scale. The monitoring system may include a first data receiver and a second data receiver configured to derive the measurements of the fluid parameter using the measurement scale. The monitoring system may include a signal distribution device, without external power, coupled to the sensor, the first data receiver, and the second data receiver. The signal distribution device may be configured to distribute respective input signals to the first data receiver and to the second data receiver, where the respective input signals are based on the signal and have the fixed relationship to the measurement scale.