Abstract: A cavitation reduction valve structure using a dispersion valve includes: a main valve including a front end portion to which a fluid is introduced, a rear end portion from which a fluid is discharged, and a body portion which is arranged between the front end portion and the rear end portion; a first actuator which is connected to the body portion and opens and closes the body portion and controls a flow rate passing through the body portion; a first dispersion pipe branching from the front end portion; a buffer portion which is connected to the first dispersion pipe; a second dispersion pipe connecting the buffer portion and the body portion to each other; a bypass pipe connecting the buffer portion and the rear end portion to each other; and a dispersion valve provided on the bypass pipe.

Abstract: A linear actuator (1) comprising a first part (3) and a second part (5) is disclosed. The first part (3) is arranged to rotate along with a rotating part (4) of a motor (2), and the second part (5) is arranged to drive an actuated part (18, 22). A coupling (6) interconnects the first part (3) and the second part (5) to allow the second part (5) to rotate along with the first part (3) at the same angular velocity as the first part (3). The coupling (6) defines a fit tolerance between the first part (3) and the second part (5) allowing the first part (3) to rotate a predefined distance before engaging the second part (5) and rotating the second part (5) along with the first part (3). The fit tolerance ensures that the first part (3) reaches a certain angular velocity and thereby that the resulting torque transfer from the first part (3) to the second part (5) is sufficient, e.g. to release the actuated part (18, 22) from a pre-tensioned state.

Abstract: System, method, and apparatus for controlling circulation of fluid to, and evacuation of the fluid from, an external fluid circuit for heat transfer. A single control valve selectively stops the circulation of fluid from a supply passageway to an external fluid circuit, and diverts fluid to a bypass passageway which creates a suction force at a fluid restriction therein. A suction passageway couples the suction force of bypass passageway to either return passageway or supply passageway, for evacuating fluid from external fluid circuit. No other valve is disposed or required in the supply passageway or the bypass passageway apart from the single control valve. No more than a single actuator is required to operate the apparatus. No more than a single suction passageway is required to be coupled to either supply passageway and/or return passageway. A return check valve disposed in return passageway prevents backflow of fluid through return passageway.

Abstract: Metered dispensing of a microfluidic amount of fluid from a reservoir comprises a pressure device which applies a discharge pressure for fluid ejection via a discharge line through a valve arrangement. The valve device has a first valve with a minimum closing time and a second valve with a minimum opening time. A control device provides control signals for operation for metered dispensing of the amount of fluid as follows: a shortened minimum opening time for freeing the discharge line for the fluid flow, which time is shorter than the minimum opening time of the second valve; and a shortened minimum closing time for closing the discharge line for the fluid flow, which time is shorter than the minimum closing time of the first valve. Furthermore, a hand-held device for locally piercing human or animal skin is disclosed.

Abstract: Fluid assembly for use in a fluid system, having a control module including a processing unit for processing control commands into individual electrical control signals with individually adjustable control signal levels and a control signal level electrically connected to the processing unit, with a power unit, which has a power module for converting the control signals into individual electrical control currents as a function of the control signal levels and an output interface electrically connected to the power module, wherein the processing unit is designed to provide a first group of control signals in a first time interval which can be individually predetermined for each control signal and to provide a second group of control signals in a second time interval which can be individually predetermined for each control signal and follows the respective first time interval, wherein the first control signal and the second control signal are selected in such a way that the control currents in the first time in

Abstract: A valve (10) including a first port (12), a second port (14), a third port (16) and a flexure (30), the flexure (30) being moveable between a first position which causes the first port (12) to open, a second position which causes the second port (14) to open, and a third position which causes the first and second ports (12, 14) to close, wherein at least a part of the flexure (30) is magnetisable, to provide a first magnet (32), a second magnet (34) is associated with the first port (12) and a third magnet (36) is associated with the second port (14). A valve assembly includes a pair of valves wherein only one of the valves is operable at any given time.

Abstract: Examples of the present disclosure relate to a container for storing a material for a printing system. The container has a channel structure for conveying the material, the channel structure providing an opening of the container and an axis of the channel structure defining an axial direction. The container also has a valve structure disposed within the channel structure. The valve structure is translatable within the channel structure between a proximal position and a distal position in the axial direction. The valve structure is non-rotatable relative to the channel structure about the axis of the channel structure. The valve structure is arranged to seal the channel structure when the valve structure is in the proximal position.

Abstract: A flow conditioner of a valve assembly includes a body including a longitudinal axis, a first end, a second end, and a flow path connecting the first end and the second end. A non-planar surface is formed in the first end of the body. A plurality of channels define the flow path and extend parallel to the longitudinal axis. At least one channel of the plurality of channels has a length different from a length of an adjacent channel of the plurality of channels. A cylindrical housing surrounds the plurality of channels and includes a first end and a second end. The first end is proximally located to the first end of the body. The non-planar surface of the first end is defined in part by an end of the at least one channel of the plurality of channels.

Abstract: The present invention relates to an emergency control device for a spring return valve actuator, the device including: a power source unit for receiving an alternating current (AC) power source, converting and stepping down an AC voltage of the received AC power source to a given direct current (DC) voltage, and supplying the DC voltage, and transmitting a signal as to whether the power source is supplied; a charge unit for receiving the DC voltage from the power source unit to store electrical energy with a given voltage; and a control unit for receiving the DC voltage from the power source unit to supply the received DC voltage to the electromagnetic brake, and if a power source cutoff signal is received from the power source unit, for supplying the electrical energy stored in the charge unit to the electromagnetic brake for a given set time.

Abstract: The invention relates to a valve device (100) for a gaseous medium, in particular hydrogen, comprising a valve housing (6) and a solenoid armature (14) which is arranged in the valve housing and can move along the longitudinal axis (18) and which interacts with a first sealing seat (32) in order to open and close an outlet opening (40). Furthermore, the valve housing (6) is equipped with a second solenoid armature (16) which can be moved along the longitudinal axis (18) and which is at least partly received in a recess (38) of the first solenoid armature (14), and the second solenoid armature (16) interacts with a second sealing seat (34) in order to open and close an outlet opening (20) formed in the first solenoid armature (14).

Abstract: An electromagnetic flexure valve (1) including: a first pole piece (50a) and a second pole piece (50b); a flexure assembly (40) a portion of which is configured for movement between a first state adjacent the first pole piece and a second state adjacent the second pole piece; a coil (20) configured to receive electrical power from a power supply and to actuate the flexure assembly between the first and second states; and a biasing configuration configured to bias the flexure assembly into the first or the second state when the coil is not powered and irrespective of the current state of the flexure assembly such that a failsafe mode is provided.

Abstract: A valve body including an outer wall, an inner wall, and a connecting wall is provided. The outer wall has a first upper surface, a first side surface, and a second side surface. At least one of the first side surface and the second side surface has a fluid hole. The inner wall is disposed within the outer wall. The inner wall shields the at least one fluid hole. A third side surface has an inner opening. The connecting wall is disposed within the outer wall. The connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall. Furthermore, an electromagnet switch valve and a bed structure are also provided.

Abstract: A valve actuator has an actuator body and a valve attachment part. Further, the actuator body has a case, a motor, a belt transmission part, and a worm reduction gear. Further, the actuator body has a bracket part.

Abstract: A sprayer control system includes a plurality of smart nozzles each having at least one control valve with a valve operator, an electronic control unit for the valve operator, and one or more spray nozzles. The at least one control valve and the ECU control a flow rate of liquid agricultural product through the nozzles. A duty cycle modulator is in communication with the ECU and generates an applied duty cycle for the at least one control valve. The duty cycle modulator includes a specified duty cycle input having a specified duty cycle and a pressure monitor associated with the at least one control valve. A pressure comparator compares the valve pressure determined with the pressure monitor with a system pressure and generates a pressure error. An applied duty cycle generator generates the applied duty cycle based on the specified duty cycle modified by the pressure error.

Abstract: A diverter is provided for use in directing airflow from an input port to selected output ports. The diverter allows for operation without valves, and is able to provide an air signal to selected output ports in a predetermined manner. The diverter having a rotatable member, or swivel valve, directing air signals to the desired output port depending on the rotational position thereof. The diverter is driven by a controlled actuator or motor, to thus control the manner in which air signals are provided to a plurality of output ports in a controlled manner.

Abstract: A control device for providing a position controller mode for closed-loop position control of an actuator member of a fluidic actuator which can be driven by a pressurized fluid, wherein the control device is configured to activate a pressure controller mode in response to the actuator member being located in a position target range given by a target position value of the closed-loop position control, and, in the pressure controller mode, to carry out a closed-loop pressure control of the pressurized fluid on the basis of a target pressure value.

Abstract: The present disclosure discloses an electromagnetic distributor and a toilet. The electromagnetic distributor comprises: a housing including a water inlet and at least two water outlets in communication with the water inlet; at least two solenoid valve cores, wherein the at least two solenoid valve cores correspond to the at least two water outlets; magnetic conducting part including at least two magnetic conducting chambers, wherein an electromagnetic loop is formed in each of the magnetic conducting chambers; wherein the at least two solenoid valve cores are respectively disposed in the at least two magnetic conducting chambers, and wherein each of the solenoid valve cores is configured to move away from or close to the corresponding water outlet under magnetic field generated by the corresponding electromagnetic loop, so as to independently control opening and closing of the corresponding water outlet. The toilet comprises the electromagnetic distributor according to any of the above.

Abstract: A fluid flow control device include a valve body including an inlet, an outlet, and a passageway extending between the inlet and the outlet. A valve trim is at least partially disposed in the passageway of the valve body. The valve trim includes a restrictor having a wall and a plurality of passages extending through the wall. A diffuser is coupled to the restrictor and including a porous body. The porous body is adjacent to the plurality of passages of the restrictor.

Abstract: A valve unit has a fluid housing through which a fluid duct extends from a first opening across a valve seat to a second opening, a valve drive connected to the fluid housing and configured to drive a valve closing body cooperating with the valve seat, the valve closing body coming into contact with the fluid in operation on the face side facing the valve seat and on a side facing away from the valve seat, and a connecting plate having a connecting surface to which the fluid housing can be mounted and in which a fluid supply duct and a fluid outlet duct are formed.

Abstract: An electromagnetic valve includes: a solenoid having a plunger movably supported along an axial direction; a flow path member having a fluid passage flow path and a valve element housing portion; and a valve element disposed in the valve element housing portion and movable along the axial direction together with the plunger. The valve element includes: a body part in a tubular shape having a wall portion closing one axial end side and an opening at the other axial side; a valve part fixed to one axial side of the wall portion for opening and closing the flow path as moving together with the plunger; and a core member in a columnar shape that is movable along the axial direction inside the body part, and that is in contact with the wall portion on the one axial side and the plunger on the other axial side.