271 results about "Pressure level" patented technology

An air mattress adjustment method includes adjusting the air mattress to a received user pressure setting, learning a level of pressure in the air mattress at a first plurality of times with respect to the user pressure setting, monitoring the level of pressure in the air mattress at a second plurality of times, determining that the pressure of the air mattress at one of the second plurality of times is out of range, and based on the determining, adjusting the pressure of the air mattress.Application. docx

A pressure-actuated switch having a pressure port, a diaphragm, a range spring, an actuator plate, a differential plate, and an electrical switch. A certain pressure level moves the diaphragm against the range spring at the pressure port and thus deflects the actuator plate. The actuator plate is coupled to the electrical switch via a snap spring, wherein the electrical switch can be switched on or off via the deflection of the actuator plate and the snap spring. The differential plate controlled by a differential spring is connected to the actuator plate and supports the actuator plate in a first portion of movement, wherein the differential plate is decoupled from the actuator plate in a second portion of movement of the actuator plate.

This application provides a constant pressure water supply control method, system, and medium for a standardized secondary water supply pump station. The method includes: acquiring and processing multiple historical water supply data points within a preset time period, including water supply time data, corresponding pump water supply pressure data, and user node water supply pressure data, to obtain the water supply pressure level and corresponding water supply pressure and time; processing this data in conjunction with the user node water supply pressure to obtain the pipeline pressure loss value corresponding to the water supply pressure level; acquiring and processing real-time water supply time point data to obtain the water supply pressure level, corresponding water supply pressure, and pipeline pressure loss value, to obtain the real-time demand water supply pressure of the pump; then implementing water supply and acquiring and processing real-time water supply pressure data from user nodes to obtain a real-time water supply evaluation index; finally, performing threshold comparison and adjusting the water supply mode based on the comparison results; thereby achieving constant pressure water supply and precise control of the secondary water supply while reducing energy consumption.

The invention discloses a reinforcement learning reward function construction method and system based on multi-modal physiological signals. The method belongs to the technical field of automatic driving, artificial intelligence and man-machine interaction. The basic defect that balance cannot be obtained between a task target and the physiological comfort of a driver and passengers exists in the design of an existing reward function is overcome. The core technical idea is a two-stage decoupling architecture, wherein the first stage is an offline training stage, and the purpose of the first stage is to train a'physiological reward agent model '; and a second stage (reward generation and deployment stage): in this stage, the real-time dependence on all multi-modal physiological signals and acquisition equipment thereof is completely abandoned. The physiological reward agent model trained in the first stage is only used for conducting batch processing on any data set only containing vehicle state data and driving behavior data, the physiological pressure level is deduced, and a physiological reward is calculated according to the physiological pressure level.

The invention discloses a pressurizing oxygen cabin pressure control method which comprises the following control steps: after an oxygen cabin door is completely closed, a compressor in a pressure control system is started along with linkage control to implement a pressurizing mode in an oxygen cabin body; in the process of pressurizing the inside of the oxygen cabin, three paths of electric ball valves in the air circulation system are started according to three pressure gears set and monitored by an oxygen cabin pressure control system to open the corresponding electric ball valves to release pressure; and when the pressure in the oxygen cabin exceeds the pressure gear in the set three-gear pressure, the corresponding gear electric ball valve is automatically started and opened to execute the pressure relief task, so that the oxygen cabin pressure in the oxygen cabin is kept in a safe and effective pressure level interval, the pressure control in the oxygen cabin is simple, convenient and effective, and the pressure control cost is low.

The present invention relates to a tactile sensor apparatus including a tactile sensor using an air pressure detecting method through an air chamber, a processor that detects a pressure level based on a degree of deformation of a membrane according to an internal pressure change of the air chamber of the tactile sensor, and a communication module that transmits the pressure level to a central processing device of a robot.

The invention provides a dangerous waste landfill leakage emergency shield blocking and co-processing method and system, and relates to the technical field of underground pollution prevention and control and environment emergency treatment. On-site monitoring data are collected under the unified space-time reference, a pollution feather envelope line and shield curtain geometry are determined based on rapid inversion, a shield tunneling machine is driven to form a waterproof curtain, functional pipe pieces are arranged, an inward flow field is established in the curtain, and the water level difference and the negative pressure level are controlled in real time. The control terminal calculates a risk evaluation and dosage flow velocity instruction set according to the monitoring data and the extraction parameter set, and issues the risk evaluation and dosage flow velocity instruction set to the grouting, extraction and agent injection system to realize synchronous operation of curtain reinforcement and in-situ chemical repair; when the risk and repair indexes reach the standard, load reduction and plugging are carried out, and long-term monitoring is carried out. According to the method, rapid sealing control, dynamic repairing and intelligent decision making of the hazardous waste leakage area are achieved, and the accuracy of emergency disposal is improved.

Examples refer to powder feeding systems including a powder feeder connectable to a laser metal deposition equipment, the powder feeder having a feeding hopper to store powder, a first powder outlet through which powder is feed to the laser metal deposition equipment and a first powder inlet, a refilling hopper to store additional powder that includes a second powder outlet connected to the first powder inlet through which the additional powder is provided to the feeding hopper and a pressure generation component to generate an operating pressure level inside the feeding hopper. The system also includes a controller that, during normal operation of the powder feeder and upon reception of a refilling signal, causes the generation of a pressure level inside the refilling hopper substantially equal to the operating pressure level and causes the passage of additional powder from the refilling hopper to the feeding hopper.

The present invention relates to a device for direct injection of a gaseous fuel, in particular hydrogen, which device comprises: a pressure-control unit which is designed to convert a supplied variable pressure level of the gaseous fuel into a fixed constant output pressure level; a distributor unit which is connected to at least one injector for direct injection of the gaseous fuel, which has been guided through the pressure-control unit, into a combustion chamber; and a fluid connection between the pressure-control unit and the distributor unit in order to guide the gaseous fuel at a constant output pressure downstream towards the distributor unit. The device is characterized in that a flow-control valve is disposed along the fluid connection and designed to adjust the constant output pressure level of the gaseous fuel to a desired target pressure not exceeding the output pressure level.

A system for evacuating and sealing containers filled with product, for example, food product, includes an enclosed, sealed housing wherein the pressure level and the atmospheric content can be controlled. A vacuum shroud is positioned in registry with a container entrance opening in the housing, the shroud connectible to a vacuum source and to a source of replaceable gas to replace the ambient air to be removed from the container. The shroud is advanceable to seal the container entrance opening and is retractable from the container entrance opening. A container transport system inserts the container through the housing entrance opening and into the shroud. Thereupon, a sealing system seals the housing from the ambient after the container has been inserted into the shroud. After the air in the container has been replaced with an inert gas and then the shroud retracted, a closure subsystem applies a cover to the evacuated container. Thereafter, an out feed subsystem removes the closed container from the housing while maintaining the atmospheric content and pressure level within the housing.

The disclosure concerns a system (1) for monitoring a cleaning process in a milking installation (2). A central controller (3) obtains from a pressure sensor arrangement (36) at each milking point (10) of the installation (2) an identity indicator indicative, a series of measured values of pressure levels indicative of pressure levels, and temporal indicators. The central controller (3) is configured: —for each pressure sensor arrangement (36) to store in a database (5), —to evaluate the series of measured values of pressure levels to determine a progress of a slug of cleaning liquid along a common milk line (4), and—to issue a notification signal related to the progress of the slug of cleaning liquid along the common milk line (4).

Method for operating a forming device for forming plastic preforms into plastic containers, wherein the forming device (1) has a movable carrier (20) on which a plurality of forming stations (2) are arranged, wherein each of these forming stations in an operating operation forms plastic preforms (10) into the plastic containers by applying a flowing and in particular gaseous medium, wherein in the operating operation the plastic preforms are subjected to at least two different pressure levels for their expansion and at least two valves are used for this application, characterized in that at least a measured value is determined at least temporarily, which is characteristic for a switching time and / or a switching time delay of at least one of the valves, wherein this measured value results from a pressure measurement.

This invention relates to the field of structural defect detection technology for pressurized water-passing tunnels, and discloses an adaptive attitude control submersible and control method for detecting structural defects in pressurized water-passing tunnels. The submersible includes directional wheels, a propulsion module, a slide rail, an attitude adjustment module, an underwater detection module, a support frame, and a tunnel lining structure. The method includes: after starting the submersible, the automatic control module performs a self-check, acquires initial attitude data through the attitude monitoring module, and performs calibration; according to different conditions in the tunnel, the attitude adjustment module adjusts the pressure levels of the hydraulic and pneumatic chambers; the automatic control module controls the propulsion motor and turbine to drive the submersible forward; a visual inspection device achieves multi-directional synchronous detection within the tunnel; the automatic control module is connected to each component through electronic circuitry, and dynamically adjusts the gravity and buoyancy in the device based on the attitude monitoring data obtained by the attitude monitoring module. This invention provides solid technical support for tunnel structural defect detection.

A device for compressing limbs and a method for compressing lower limbs by using same are provided. The limb compression device comprises: first to Nth air cells sequentially arranged from a front end of a limb toward a body in the longitudinal direction of the limb; a pressure adjustment unit, which can inject air into the N air cells and discharge the air from the air cells so as to pressurize and depressurize same; and a control unit for controlling operation of the pressure adjustment unit. The N air cells are divided into: a first cell group including one or more air cells arranged closer to the front end of the limb; and a second cell group arranged closer than the first cell group to the body. The control unit performs over-pressurization control in which the first cell group is pressurized up to an over-pressure level and then depressurized, and then performs sequential pressurization control in which the first cell group is pressurized, the second cell group is subsequently pressurized, and then the first cell group and the second cell group are depressurized.

The invention relates to a method (200) for controlling removal of cryogenic hydrogen from a cryogenic pressure tank (16). The method (200) comprises controlling (202) the removal of the hydrogen from the cryogenic pressure tank (18) in a first phase (402) in such a way that the removal is effected substantially adiabatically, and controlling (204) the removal of the hydrogen from the cryogenic pressure tank (18) in a second phase (406) in such a way that the removal is effected with active supply of heat to the hydrogen stored in the cryogenic pressure tank (18). The method (200) further comprises determining (206) a switchover pressure level (404), which is dependent on a minimum measurement accuracy to be maintained for a quantity measurement of the hydrogen stored in the cryogenic pressure tank (18), and defining (208) the switchover pressure level (404) as a threshold value of the control for a transition from the first phase (402) to the second phase (406).

A method for producing a plurality of product gas streams by a pressure swing adsorption (PSA) unit is described. The method comprises: receiving first feed gas stream 12 having a first pressure; receiving a second feed gas stream 14 having a second pressure that is lower than the first pressure; producing at least a first product stream 16, a second product stream 20, and a third product stream 18 without compressing the second feed gas stream to a pressure level corresponding to the first pressure. The first feed gas stream 12 may comprise non- adsorbed components such as hydrogen and helium; least adsorbable components such as water and hydrocarbons heavier than methane; less adsorbable components such as carbon monoxide and methane; and heavily adsorbable components such as carbon dioxide. The second feed gas stream 14 may comprise non-adsorbed and least adsorbable components.

This application discloses a method for optimizing the hub profile of an axial flow fan blade. The method includes: real-time acquisition of fan operating conditions to obtain the current fan speed and outlet back pressure, forming an operating condition vector; inputting the operating condition vector into a pre-trained adaptive prediction model, which outputs the optimal hub profile parameter vector corresponding to the current operating condition; the optimal hub profile parameter vector is set as a dynamic variable related to the operating condition vector, and the optimal hub profile parameter is pre-obtained based on a multi-objective comprehensive performance evaluation function with blade passing frequency sound pressure level and fan aerodynamic efficiency as optimization objectives, through adaptive optimization under different operating conditions; and dynamically adjusting the hub profile of the physical axial flow fan according to the optimal hub profile parameter. Thus, real-time adaptive adjustment of the axial flow fan hub profile to operating conditions is achieved.

The invention relates to a compressor (100) and a heat exchanger (400) for a refrigerant circuit (1000, 1100), as well as a corresponding refrigerant circuit (1000, 1100) and a vehicle with such a compressor (100), heat exchanger (400) and refrigerant circuit (1000, 1100). The compressor (100) has a longitudinal axis (120) and is configured to receive refrigerant via a suction-side first inlet port (152) arranged at a first axial end (111) of the compressor (100), to compress it from a low-pressure level prevailing at the suction-side first inlet port (152) to a high-pressure level, and to discharge it again via a pressure-side outlet port (156) arranged at a second axial end (112) of the compressor (100).A housing (110) of the compressor (100) has on an outer surface (130) a receptacle for a compressor control unit (140) and at least one refrigerant channel (150) which is configured to convey refrigerant at a pressure level below the high pressure level, wherein the at least one refrigerant channel (150) leads from the second axial end (112) of the compressor (100) to the first axial end (111) of the compressor (100) and is arranged at least partially along the outer surface (130) with the receptacle.

The proposed group of inventions relates to the field of pumping equipment adapted for pumping a gas-containing liquid by acting on said liquid using a medium released from the gas-containing liquid itself. For extracting a gas-containing liquid, production tubing and at least one electromechanical transducer are installed in a borehole. Attached to each of the two opposing ends of the electromechanical transducer is at least one vibration concentrating waveguide which acts on the gas-containing liquid from two opposing ends of a core of the transducer. The position of the electromechanical transducer inside the borehole is fixed by means of a protruding member situated in a region of zero vibration amplitude on each of the vibration concentrating waveguides. The electromechanical transducer is installed inside the borehole above the bubble point pressure level of the gas-containing liquid, electrical energy is fed to a winding on the core, and gas dissolved in the gas-containing liquid is released, giving rise to a gas-liquid mixture which is raised to the surface by the lifting energy of the released gas and the pressure on the bottom of the hole. The technical result includes increasing the amount of gas released from a unit volume of a gas-containing liquid, with no significant increase in the mass characteristics of the equipment used, and ensuring that the electromechanical transducer is securely fastened and held inside the borehole in the presence of high-frequency vibrations. In addition, the proposed solution obviates the need for equipment for feeding auxiliary fluids into a borehole in order to extract a gas-containing liquid.

2. Supply device for a hydraulic system (10), comprising at least a fluid supply with at least two supply pumps (20, 22), wherein at least one of the pumps (22) can be at least partially decoupled from the hydraulic system (10) depending on the volume flow requirement of the hydraulic system (10) by connecting this pump (22) to another pressure level which is lower than the pressure level of the hydraulic system (10), preferably tank pressure, wherein the decoupling of the pump (22) is carried out hydraulically via a switching valve (34) which has a main control stage (36) and a pilot stage (38) which generates a hydraulic control pressure as a signal during operation, which actuates the main control stage (36) and which has a predefinable switching hysteresis.

The invention relates to a device and a method for foaming building materials with CO₂ 2 for the production of a building component and / or building insulation. The device comprises a conveying device (2) and, downstream, a construction material line (3) in which one or more injection nozzles (4) are arranged to inject liquid CO into the stream of construction material. 2 to inject. The pressure level in the building material line (3) is maintained such that the injected CO₂ 2 remains in its liquid state. The building material as well as the CO 2 downstream they enter a mixing device (9) and then at least one or more decompression pumps (11), which ensure controlled decompression of building material and liquid CO₂ 2without significant cooling and segregation. Downstream, a dispensing device (19) is arranged, which is configured to dispense the material for the production of a component and / or building insulation. Depending on the addition of CO 2 This allows the layers within a component to be modified with respect to their density and thus their properties in terms of load-bearing capacity, heat transfer, and mass. If the amount of CQ is kept constant during the process, 2 injected, which the building material in gaseous CO 2 The material that can be absorbed in the suspension forms a building material foam, for example, in the form of building insulation. The invention further comprises a corresponding method for manufacturing components using such a method.

Disclosed herewith are a precursor, a gas mixture, and a method for depositing a dielectric film in a processing chamber. A method includes disposing a substrate on a susceptor disposed within a processing chamber; controlling a pressure level and a temperature of the processing chamber; delivering an RF power into the processing chamber; providing a precursor-containing gas mixture into the processing chamber, and applying a post-deposition process to the substrate after the dielectric film is formed on the substrate. The precursor-containing gas mixture includes a precursor and an inert gas selected from the group consisting of argon, nitrogen, and helium. The precursor includes a carbosilane having a Si-C-Si structure in a backbone of the precursor.

The disclosure concerns a system (1) for monitoring a cleaning process in a milking installation (2). A central controller (3) obtains from a pressure sensor arrangement (36) at each milking point (10) of the installation (2) an identity indicator indicative, a series of measured values of pressure levels indicative of pressure levels, and temporal indicators. The central controller (3) is configured: —for each pressure sensor arrangement (36) to store in a database (5), —to evaluate the series of measured values of pressure levels to determine a progress of a slug of cleaning liquid along a common milk line (4), and—to issue a notification signal related to the progress of the slug of cleaning liquid along the common milk line (4).

An electric drive system (30) with temperature preconditioning of the operating fluid, comprising an electric machine with rotor (2) and stator (1) and winding heads (21) axially terminal on the stator (1), as well as a gearbox (24) and a hydraulic arrangement for supplying the components of the drive system with the operating fluid with at least one electric pump (4), wherein the winding heads (21) are each surrounded in an annular manner by a housing (22) which is designed as a winding head tank (23) for receiving the operating fluid, characterized in that the pump (4) fills the winding head tanks (23) with a first pressure level and supplies the components of the electric drive system (30) with operating fluid with a second pressure level.

The invention provides a self-adaptive control method based on multi-cycle waterway pressure characteristics and related equipment thereof. The self-adaptive control method comprises the following steps: acquiring target waterway pressure data in a plurality of preset detection cycles; extracting a characteristic value of the target waterway pressure data, and determining a current waterway pressure grade; according to the waterway pressure grade, the target rotating speed of a corresponding water pump motor is matched; and controlling the current rotating speed of the water pump motor according to the target rotating speed. Statistics and trend analysis are carried out on multi-cycle water pressure data through the steps of the method, self-adaptive sensing and response control over waterway load changes are achieved, and therefore the intelligent degree of a control system and the operation efficiency of a water pump are improved.

The invention relates to a refrigerant circuit (100) with a compressor (150) for compressing a gaseous refrigerant, which in particular contains propane, from a suction-side low-pressure level to a discharge-side high-pressure level, at least two heat exchangers (110, 120, 130), of which a first heat exchanger (110) and a second heat exchanger (120) are configured for transferring heat between the refrigerant and a, in particular liquid, temperature control medium, and at least one expansion valve (122, 132, 142) for expanding refrigerant compressed by the compressor (150), wherein at least one of the at least two heat exchangers (110, 120, 130) is supported by a carrier plate (180), wherein at least one refrigerant channel (182) runs within the carrier plate (180), which is configured to supply refrigerant to or from at least one of the at least two heat exchangers (110, 120, 130).130) and / or to or from at least one of the at least one expansion valve (122, 132, 142). The carrier plate (180) has at least one subcooling channel (188) comprising at least two adjacent channel sections (188A, 188B) which are fluid-conductingly connected to each other via a deflection section (188C). Furthermore, a carrier plate (180) for such a refrigerant circuit (100) and a vehicle with such a refrigerant circuit (100) are proposed.

To provide an apparatus for supplying a synthesis gas mixture of at least carbon dioxide and hydrogen.SOLUTION: Wherein the device (10) comprises a branching device (13) for branching the mass flow of at least carbon dioxide into a first and a second partial mass flow, a partial mass flow turbine (14) for expanding the first partial mass flow, a first mixing device (16) for mixing the expanded first partial mass flow with at least the mass flow of hydrogen, a compression device (17) for compressing the mixture of at least carbon dioxide and hydrogen to a third pressure level, and a bypass line (20) through which the second partial mass flow is conducted past the partial mass flow turbine (14), the first mixing device (16) and the compression device (17) in the direction of a second mixing device (21) in order to mix the second partial mass flow with the mixture compressed by the compression device (17) in the region of the second mixing device (21). And a bypass line (20).SELECTED DRAWING: Figure 1

This invention relates to the field of motor rotor copper busbar processing technology, and discloses a control method and system for a wound-rotor rotor bar forming machine. The method includes: setting parameters such as the straight length of the bar, bending angle, initial end length, and rotor center position; adjusting the straight spacing, end position, and R-block size of the clamping plates; determining the pressure level and selecting a target pressure value; applying reverse balancing oil pressure through a pressure reducing valve to adjust part of the tensile force; controlling the clamping plates to clamp the bar, and then driving the first and second swing arms to rotate; collecting the angle values ​​of the first and second swing arms; when the angle value reaches the bending angle, controlling the power source to stop, and the first and second top-arc components cooperate to bend the bar into a motor rotor bar; after bending, driving the first and second swing arms to move outward and removing the bar. This application improves the equipment adjustment efficiency and bending angle accuracy.

A device and related aspects for providing negative pressure to a wound site are disclosed. The device includes: a negative pressure source configured to provide negative pressure to the wound site from an inlet of the negative pressure source via a first fluid flow path; and an electronically controllable valve configured to release negative pressure from the wound site via a second fluid flow path. The device also includes: a pressure sensor configured to measure a pressure level in the second fluid flow path; and a control circuit system operatively connected to the negative pressure source, the electronically controllable valve, and the pressure sensor. The control circuit system is configured to open the electronically controllable valve and, in response to a pressure change rate exceeding a pressure change rate value, output a signal indicating blockage in the second fluid flow path. The control circuit system is further configured to close the electronically controllable valve and activate the negative pressure source in response to a pressure change rate below a pressure change rate value, and to output a signal indicating blockage in the first fluid flow path in response to a pressure level measured by the pressure sensor not responding to changes in negative pressure generated by the activity of the negative pressure source.

To provide a suction and irrigation system for maintaining an in situ pressure of an anatomical environment at an anatomical site under control during an endoscopic procedure.SOLUTION: Systems and methods for providing in-situ pressure control in an anatomical environment during a procedure are disclosed. The example irrigation and aspiration system includes a user input configured to receive, from a user, a desired pressure to be applied to the anatomical environment or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor for sensing a pressure at or near the anatomical environment during the procedure, and a control module for adjusting one or more of an irrigation flow rate or an aspiration flow rate of at least one working channel of the medical device to maintain the pressure in the anatomical environment substantially at a desired pressure level or to maintain desired flow conditions in the working channel.SELECTED DRAWING: Figure 1