175 results about "Automatic balancing valves" patented technology

A method and apparatus for converting DC input power to DC output power. The apparatus comprises a plurality of parallel connected flyback circuits. A controller is coupled to the switches within the flyback circuits to provide accurate timing and automatic current balancing amongst the plurality of flyback circuits.

The invention relates to an air conditioner using a combustible refrigerant and a control method thereof. The air conditioner comprises a refrigeration/heat pump air conditioner system which consists of a compressor, a four-way valve, an indoor heat exchanger, a throttle mechanism, and an outdoor heat exchanger, wherein two ends of the indoor heat exchanger are provided with an air conditioner connecting pipe pneumatic valve and an air conditioner connecting pipe hydraulic valve respectively; a refrigerant working medium concentration sensor is arranged indoors; a drain pipe branch and an automatic drain valve of the drain pipe branch are arranged on the connecting pipes of the outdoor heat exchanger; the refrigerant working medium concentration sensor is arranged beside the indoor heat exchanger; and the drain pipe branch and the automatic drain valve of the drain pipe branch are arranged on the pipes between the throttle mechanism and the outdoor heat exchanger. The air conditioner using the combustible refrigerant is provided with the refrigerant working medium concentration sensor, the drain pipe branch, and the automatic drain valve of the drain pipe branch, and when the combustible refrigerant working medium is detected to be leaked, an outdoor machine part exhausts the refrigerant to the large outdoor space to reduce the indoor leakage quantity, so personal injury and property loss generated when the indoor combustible working medium concentration reaches the combustion limit are avoided.

An automatic balancing valve is disclosed which is equipped with choking means that can be operated manually with a ring nut placed below the actuating member of the shutter and aligned axially therewith. Advantageously, the dimensions of the ring nut are larger in plan view compared to the plan view dimensions of the actuating member so as to allow its rotation without removing the actuating member.

The invention relates to an automatic balancing lifting tool. The automatic balancing lifting tool consists of a lifting beam, a balance control system, a lifting frame driving mechanism and the like, and is suitable for balanced lifting of large-size objects with gravity center positions which are not certain. By receiving information of an inclination angle sensor and a position sensor through a balance controller, the balance controller automatically completes data processing and then gives out a driving control instruction to a motor, the motor drives a lifting frame to move through a speed reducer, a lead screw and a lead screw nut to realize the adjustment of the lifting point of the lifting tool, and thereby a balanced lifting state is achieved. The automatic balancing lifting tool has the advantages that the structure is simple, the operation is facilitated, the trouble in artificially and repetitively finding the gravity center position is avoided, the lifting efficiency of the large-size objects is improved and the operating difficulty and lifting cost are reduced.

The invention provides a valve ball loading device of an automatic ball valve assembling machine, belonging to the technical field of machinery, and solving the problems that the traditional ball valve is assembled by the hands, the assembling efficiency is low, the labor cost is high and the like. The automatic ball valve assembling machine comprises a worktable, wherein the worktable is fixedly connected with a die holder, the die holder moves together with the worktable, and the valve ball loading device is arranged on the side edge of the worktable and comprises a support, a vibration tray, a sliding-table air cylinder and a positioning bar, wherein the upper part of the support is fixedly connected with a horizontal guide rail, the horizontal guide rail is movably connected with a mechanical hand, the sliding-table air cylinder is positioned in the middle of the support, the positioning bar is fixed on a sliding table of the sliding-table air cylinder, one end of the positioning bar is provided with a positioning groove, the positioning groove is formed in a discharging port of the vibration tray, and a valve ball in the positioning groove can be moved by the mechanical hand into a valve body on the die holder. The valve ball loading device has the advantages of high automation degree, high ball valve assembling efficiency, and the like.

The invention discloses a rotor online automatic balancing device of a high-speed rotating machine, which comprises a fixed disk, a movable disk and a movable disk end cover, wherein the fixed disk isinstalled on a rotor end cover, the movable disk end cover is installed on the movable disk, and the movable disk is installed on a high-speed rotor by interference fit; and two concentric annular rotating transformer structures are respectively designed on the fixed disk and the movable disk and realize the energy transfer between the fixed disk and the movable disk by electromagnetic induction.A rotatable adjusting mechanism is designed in the movable disk and comprises a fixed ring and a rotating ring, wherein the fixed ring generates traveling wave vibration and drives the rotating ringto rotate by friction force. A counterweight is arranged on the rotating ring; and when the counterweight generates rotation relative to the rotor of the high-speed rotating machine, the rotor gravitycenter of the high-speed rotating machine is adjusted on an axle center so as to achieve the aim for reducing the vibration of the high-speed rotor. By adopting the device, the vibration caused by anunbalanced main axle can be reduced when the high-speed rotating machine is operated and the running state of the high-speed rotating machine is improved.

A gas pressure sensor assembly for a gas regulator includes a plurality of selectable inlets, an outlet and a gauge. Each inlet is configured to receive pressurized gas from a different one of a plurality of associated pressurized gas storage containers. The outlet supplies gas to an associated appliance. The gauge senses a gas pressure in a selected inlet corresponding to the associated pressurized gas storage container from which the inlet receives pressurized gas and visually indicates a pressure of that associated gas storage container. The gas pressure sensor assembly includes a cooperating member and an sensing device. The cooperating member is at least partially housed within the gauge and includes a disc member rotatably responsive to a gas pressure in the selected inlet. The sensing device is releasably connected to the gauge. The sensing device is selectively actuated by movement of the disc member. The sensing device is configured to provide an audible signal to a user indicative of a generally empty status of the associated gas storage container connected to the selected inlet. The sensing device can be easily removed from a gauge of one gas regulator and releasably connected to a gauge of another gas regulator.

The invention discloses an automatic balancing device of a transplanter, which not only has function of lifting and profiling, but also has function of controlling the balance of the left, the right and the horizontal; the left, right and horizontal balance control comprises a hydraulic unit, a sensor component, a balancer assembly, a chain box and a travelling wheel; by applying the principle of universal gravitation and balance lever, a weight of a sensor finds balance automatically to control the hydraulic system, and a hydraulic cylinder drives the relevant components, thus realizing the control of the left, the right and the horizontal of the machine body; the automatic balancing device can avoid the phenomenon that the planting depth of seedlings is not identical, the planting depth of one side of the left side and the right side is deep, the planting depth of the other side thereof is low and the seedlings are floating, can reduce the labor intensity and improve the work quality and production efficiency.

The invention discloses a valve flow regulating control method for eliminating the serious plug flow sections. The automatic adjusting valve installed on the outlet of the ascending pipe, PID for receiving valve opening signal, inlet pressure signal and the pressure signal from the bottom of the ascending pipe, and logical algorithm control module can perform the dynamic control of the valve flow regulating. Analyzing, calculating and converting on the inlet pressure and pressure signal of the bottom of the ascending pipe and valve opening signal and outputting the signal to real time control the opening of the automatic adjusting valve, three threads calculating parallel can react to the pressure variation of long cycle and stable the regulating flow on a proper degree.

The present invention relates to a continuous intelligent controlled photocatalytic water quality deep purification equipment, including box body, photocatalytic vertical reactor, automatic regulating valve, pre-filter, water level controller and collecting device, etc. It is characterized by that said photocatalytic vertical reactor includes its shell, UV lamp, photoelectric sensor, glass double-pipe and photocatalyst film carrier. Said photocatalytic vertical reactor is placed in the middle portion of the box body, and it is equipped with a PLC intelligent controller which can be used to make conversion of signal from water level controller and UV lamp and photoelectric sensor power supply and control signal to control opening or closing of the regulating valve so as to implement automatic control.

The invention discloses a device and a method for automatic balancing for unbalance faults of a large rigid rotor, and belongs to the field of rotor balancing. The device for automatic balancing comprises a rotor and track mechanisms, wherein the rotor is arranged between two bearing brackets; the track mechanisms are respectively arranged at the vertical surfaces of both ends of the rotor; two counterweight trolleys are arranged in each track mechanism; a motor in each counterweight trolley is used for driving the corresponding counterweight trolley to rotate along the corresponding track mechanism; a vibration signal and a rotation speed signal detected by a sensor are transferred to a balance tester; the processed signals are transferred to a control system in each counterweight trolleyby a signal generator; the control system is used for sending a pulse signal to each motor, so as to control each counterweight trolley to move in the corresponding track mechanism. The device has the advantages that by arranging a vertical circular track for moving each counterweight trolley, the position of a balance block can be automatically obtained according to the fault conditions, and theautomatic balancing can be realized in the running process of the rotor; the time is shortened, and the benefit is improved.

The invention discloses a high-pressure-difference and low-noise V-shaped ball flow automatic adjusting valve. The high-pressure-difference and low-noise V-shaped ball flow automatic adjusting valve comprises a valve body, a V-shaped ball valve element arranged in the valve body and a valve rod used for driving the V-shaped ball valve element to rotate, and further comprises an outlet pressure sensor used for detecting the pressure of the outlet position of the V-shaped ball valve element, an inlet pressure sensor used for detecting the pressure of the inlet position of the V-shaped ball valve element, and a controller used for receiving remote flow control signals and adjusting the opening or closing angle of the V-shaped ball valve element according to the pressure signal variable quantity fed back by the outlet pressure sensor and the inlet pressure sensor when the remote flow control signals are not changed. According to the V-shaped adjusting valve, the pressure information of the inlet position and the outlet position of the V-shaped ball valve element is detected in real time, the remote flow control signals are adopted in combination, the opening or closing angle of the V-shaped ball valve element is controlled in real time through the controller, and therefore the automatic flow adjusting function during load changing is achieved.

A fuel injection system for an internal combustion engine includes an engine management system (EMS), a return line connected to a low-pressure fuel system, a common rail for storing and supplying a relatively high-pressure fuel to an injector, and an automatic isolating valve installed between the common rail and the injector. The injector has a nozzle for injecting fuel into the engine. A valve is operated by the EMS and installed between the common rail and the nozzle. A spill valve is operated by the EMS and connected by its inlet to the outlet of the valve and by its outlet to the return line. A check valve is installed between the nozzle and the return line, the inlet of the check valve being connected to the inlet of the nozzle.

The invention discloses a fire pump discharge pressure full-automatic balancing system, which comprises a CPU microprocessor, a power isolation voltage stabilizing module, a power isolation module and an operation panel, wherein the operation panel and the power isolation voltage stabilizing module are respectively connected to the CPU microprocessor; the fire pump outlet pressure full-automatic balancing system also comprises a pressure sensor connected to the CPU microprocessor through an operational amplifier, a rotational speed sensor connected to the CPU microprocessor through a photocoupling module; the power isolation module is respectively connected to the pressure sensor and the rotational speed sensor; and the CPU microprocessor is connected to an automobile ECU accelerator control port through a high-isolation photocoupling amplifier. Compared with the prior art, the fire pump outlet pressure full-automatic balancing system has the advantages of using the method for controlling the vehicle-mounted fire pump pressure through changing the rotational speed of an automobile engine to automatically balance the working pressure of the fire pump under the set pressure of a user, thereby changing a plurality of defects caused by manual pressure adjusting and mechanical pressure balancing of the vehicle-mounted fire pump. The fire pump outlet pressure full-automatic balancing system has the advantages of accurate balancing pressure numerical value, short balancing time and easy mounting.

The invention discloses an automatic balancing technology of an aircraft elevator trimmer. A reversible manual flight control system aircraft is understood through doing researches on the automatic balancing technology of elevator trimmers of a certain type of aircrafts, the best balancing effect of the force of a joystick is achieved within all the scopes employing the indicated airspeed of an automatic flight control system, the situation that an elevator surface and the joystick cannot conduct sudden movements after the automatic flight control system is disconnected is solved, the condition that the aircraft is overloaded and the posture is greatly changed is avoided, and manned piloting is smoothly switched.

The invention discloses an amphibious aircraft with an automatic balancing empennage. The amphibious aircraft comprises an aircraft body and an engine installed on the aircraft body. An air propeller is connected to an output shaft of the engine and located on the upper side of the back portion of the aircraft body, and the horizontal empennage is arranged at the portion, in slip flow generated by the air propeller, of the upper side of the back portion of the aircraft body; on one hand, the attack angle of the horizontal empennage is adjusted to offset the angle of the negative pitching moment of the engine in the take-off stage; on the other hand, the horizontal empennage serves as an adjusting sheet for the pitching balance of the aircraft in the flight process. In the take-off stage, the attack angle of the horizontal empennage is adjusted to offset the angle of the negative pitching moment of the engine; in this way, even when the aircraft is at the critical take-off speed, the engine is suddenly shut down, the pitch attitude of the aircraft cannot be changed, and the flight safety of a pilot is guaranteed accordingly. When the aircraft normally flies in the air, the horizontal empennage is adjusted to be at the proper angle and serves as the adjusting sheet for the pitching balance of the aircraft to achieve the attitude trimming function, and the flight stability of the aircraft is guaranteed.

The invention provides a low voltage residential area transformer three-phase load automatic balancing system and an automatic balancing method thereof. The system comprises an intelligent central controller and several intelligent phase changers. The intelligent central controller is installed at the beginning of a to-be-balanced line. The intelligent phase changers are installed at the branch lines of a three-phase transformer. The intelligent central controller is only responsible for the communication with the intelligent phase changers installed in the branch lines. The intelligent phase changers is treated as the slave machines of the intelligent central controller. According to the low voltage residential area transformer three-phase load automatic balancing system, the change of the three phase voltages and currents of a to-be-monitored line are collected to achieve the assessment of the unbalance level of the three phase load lines. An balance logic algorithm and a random sampling method is started based on the unbalance level of the three phase load lines to control the load switch of the three phase monitoring lines to achieve the goal of balancing the three phase loads.

A clutch wheel disc using centrifugal boosting force for tyre burst automatic balancing belongs to a device for assistantly supporting balancing and boosting kinetic friction when automobile tyre burst occurs. The clutch wheel disc (1) is additionally arranged on a fastening screw positioned by an automobile steel ring. A plurality of metal centrifugal blocks (2) are arranged on the circumference of the clutch wheel disc (1), and friction rubber blocks (3) are adhered to the outer side of each metal centrifugal block (2). When a vehicle keeps still, the metal centrifugal blocks (2) are clung to the circumference of the clutch wheel disc (1) through coil springs (4). When the vehicle drives to a certain speed, the metal centrifugal blocks (2) on the clutch wheel disc (1) expand outwards, and the friction rubber blocks (3) assistantly increase the friction boosting force between the tyre and ground, thus improving the service life of the tyre. When tyre burst of the wheel occurs, the clutch wheel disc (1) and the metal centrifugal blocks (2) can still support the weight of the vehicle body so as to lead the driver to take emergency measures in time and avoid the vehicle from crashing and rollover due to center of gravity unbalance when in fast driving.

The invention relates to a kind of chain transmitting push-and-draw automatic air door. Its characteristic is as the following: the air door adopts suspending structure with the top guide, roller chain drawing, tis roller driving device is fixed on the machine seat that swing from head to foot; under the machine seat establishes load adjusting device that can limit the greater pulling load of the roller, the limitation is realized through adjusting the pressure of heavy hammer and spring which can limit the machine seat from swinging up; above the machine seat are the overload limit-location switch which cooperates with load adjusting device to realize exact overloading protection; under the air door establishes vertical roller which runs along the sliding rails fixed on both side of the air door. On the air door there are photosensitive sensor which matches with computer to realize automatic control. The whole transmission structure is simple and reliable, the drag force of the transmission is small, its transmitting location and overloading control are accurate.

The invention discloses an automatic balancing valve which comprises a valve body, and two hydraulic control one-way valve assemblies, two directional control valve assemblies and two pressure controlvalve assemblies are arranged on the valve body; one end of the hydraulic control one-way valve assembly is connected with a liquid inlet chamber and a liquid return chamber of a system, and the other end of the hydraulic control one-way valve assembly is communicated into one of balancing cylinders; one ends of the directional control valve assemblies are respectively communicated into one of the balancing cylinders, a control chamber of the directional control valve assembly and a liquid inlet chamber of the pressure control valve assembly; and a liquid outlet chamber of the pressure control valve assembly is communicated with the liquid inlet chamber and the liquid return chamber of the system. The invention has the advantages of simple structure, easy processing and convenient dismounting and maintenance, the position of the balancing cylinders can be locked while the pressure are free, the cylinders float while in pressure, the stability of posture adjustment of hydraulic brackets is achieved, and the safety operation of the brackets is ensured.