Abstract: A method of assembling an electromagnetic gas valve having a first body, a second body, a unit comprising a valve disc and stem assembly coupled to a moveable insulating structure having a projecting member, an electromagnet assembly comprising a magnet fixed within the second body and a coil wound on a moving part with a cavity adapted to receive the projecting member, the first body having a gas inlet, a gas outlet and a through hole disposed between the gas inlet and outlet. In one implementation the insulating structure is coupled to the electromagnetic assembly by introducing a fluid under pressure into the gas outlet or gas inlet to act upon the unit to cause the projecting member to move in a direction towards the inside of the second body and into the cavity of the moving part of the electromagnet assembly.

Abstract: Solenoid operated fluid control valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and one or more features including an armature damping member, tubular actuator pin support body, flow diverter, coil bobbin support sleeve, and/or internal particle gettering magnet to improve valve operation.

Abstract: The present subject matter includes a control method to position a solenoid valve using dithering. The control method provides the steps of: determining a target current across the solenoid valve which is expressed in digital form with a given minimum quantization interval, adding a dithering square wave to the target current, controlling the voltage applied to the solenoid valve to cause the current across the solenoid valve to track the target current added to the dithering square wave, jiggling the dithering square wave with a frequency which is a sub-multiple with respect to the maximum variation frequency of the current across the solenoid valve, and varying the amplitude of the dithering square wave.

Abstract: A control valve includes a valve body with a longitudinal bore into which a first port, a second port, and a workport communicate. A valve element is slideably received within the longitudinal bore and has a valve element bore extending inwardly from one end. An aperture extends through the valve element to provide a fluid path between the workport and selectively the first port and the second port in different positions of the valve element in the longitudinal bore. A slug of solid material is received within the valve element bore and is operatively connected to transfer a force to a stationary component of the control valve without the force being applied to the valve element. This arrangement results in force due to pressure in the longitudinal bore acting on only an annular surface at the one end of the valve element.

Abstract: A valve has a body with two ports and a valve element for controlling fluid flow between those fluid ports. A solenoid actuator includes a moveable armature operatively coupled to the valve element and defining first and second chambers on opposite sides of the armature. A bore extends through the armature between those chambers. A damping piston, slideably located in the bore, has a damping orifice forming a continuously open path there through. A spring biases the damping piston into a normal position in a steady state of the valve and allows bidirectional armature motion therefrom. When the armature moves at low velocity, a pressure increase in one chamber is relieved by flow through the damping orifice. As the armature velocity increases, so too does pressure in the one chamber, causing the damping piston to move relative to the armature, thereby adding damping force from the spring to the armature.

Abstract: The present invention relates to an electromagnetic valve for a tank valve of a fuel supply system of a gas fuel motor vehicle, comprising a magnetic coil with an inner guide, and a magnetic armature which can move axially in the inner guide. The magnetic anchor consists of an anchor, a seal element which is arranged between the anchor and a fuel inlet, and a counter pole which abuts the seal element. The present invention also relates to such a tank valve and to a fuel supply system having such an electromagnetic valve.

Abstract: A gas control unit for a boiler is provided which can satisfactorily control the supply and shut-off of gas. The gas control unit for a boiler includes: a hollow housing; a solenoid that is disposed in the housing; a rod that is inserted into the solenoid and that has a lower part protruding from the housing; opening and shutting means that is disposed at the lower end of the rod so as to open and shut a gas outlet; and a spring that is disposed between the housing and the opening and shutting means so as to elastically urge the opening and shutting means downward. Here, a coupling member is formed at the lower end of the rod and a coupling groove into which the coupling member is inserted is formed in the opening and shutting means so as to allow the opening and shutting means to move.

Abstract: The present invention discloses a valve body device for an electric control valve comprising a valve seat (21) and a fixing frame (22) connected with the valve seat (21), wherein, the valve seat (21) is provided on its outer wall with a first positioning groove (211) extending circumferentially, and the direction towards which the first positioning groove (211) opens is perpendicular to the axial direction of the valve seat (21), and wherein, the fixing frame (22) is provided with a positioning flat plate portion (221) fitted with the first positioning groove (211), and the positioning flat plate portion (221) is inserted into the first positioning groove (211) and fixedly connected with the valve seat (21).

Abstract: A hydraulic pressure controller is used to control output pressure of a solenoid valve in an oil-hydraulic circuit of a transmission of a vehicle. The hydraulic pressure controller includes an operation value setting section and a correction section. The operation value setting section sets a duty cycle of an operation signal based on a target exciting current and an actual exciting current of the solenoid valve. The operation signal is inputted to a driver circuit for driving the solenoid valve. The correction section corrects the duty cycle, the target exciting current, or the actual exciting current by using a filter for eliminating or damping a resonant frequency component of a vibration model of the output pressure.

Abstract: A vertical rotor type gas solenoid valve comprises a valve case (14), a regulating spring (11), a regulating nail (10), a rotor regulating screw (9), a regulating screw bracket (12), a swing arm (18), a sealing gasket component arranged at an outer end of the swing arm (18), and a vertical rotor type electromagnet. The valve case (14) comprises a gas net (15), a gas outlet (16) and a valve port (17). The gas flow and the curve of the gas flow against the electric current of the winding can be regulated, and the minimum starting point of gas flow is determined.

Abstract: A damping force controlling valve assembly for a shock absorber is provided. The damping force controlling valve assembly includes: a main body part of a retainer having an inlet passage connected to a high pressure side of the shock absorber; a main valve generating a damping force while resisting a working fluid flowing in through the inlet passage; a spool rod part interacting with a spool inserted thereinto and supplying a working fluid through a connection port to a back-pressure chamber provided at the rear of the main valve; a solenoid part controlling a position of the spool to adjust a pressure of the back-pressure chamber; and an auxiliary valve disposed at an upstream of the main valve to generate a damping force in an extremely low speed section in advance of the main valve.

Abstract: A fuel injector that includes a flying armature movable relative to a pintle stop, and an electromagnetic circuit configured to move the flying armature away from the pintle stop prior to accelerating the armature toward the pintle stop as part of moving the pintle to open the fuel injector. The flying armature increases the total force applied to the pintle to open the fuel injector by supplementing the static force imparted to the armature by a magnetic field with an impact force imparted by the armature being in motion toward and impacting with the pintle stop. The arrangement of magnetic circuit devices and materials used to make the magnetic circuit devices cooperate to provide a reversing force that urges the armature away from before urging the armature toward the pintle stop, and increases the rate at which the force that urges the armature toward the pintle stop increases.

Abstract: The present invention provides a linear solenoid portion, comprising: a cylindrical movable core which is attracted toward a fixed core when a coil is energized: and a cylindrical yoke which surrounds an outer circumference surface of the movable core, in which the movable core is not provided with a shaft, a first stopper which limits a displacement of the movable core to a side of a fixed core is pushed into a through hole of the fixed core at one end of the movable core along an axial direction, and a second stopper which limits a displacement in a direction to be spaced apart from the fixed core is held to a bottom surface of a housing by swaging at other end of the movable core along the axial direction.

Abstract: An automatic water flow controller for a faucet includes an outlet member, a manual valve device, one or more inlet pipes supplying water to the manual valve device, a coupling tube coupled between the outlet member and the manual valve device, a solenoid valve attached to the coupling tube for controlling the water to selectively flow through the coupling tube, and an infrared ray detector attached to the outlet member for detecting an approaching of a user within a detection zone of the infrared ray detector, the infrared ray detector is electrically connected to the solenoid valve for operating the solenoid valve to control the water to selectively flow through the coupling tube.

Abstract: A solenoid valve includes a plug connection, at least one valve sleeve comprising at least one valve seat, at least one valve closure element which acts on the at least one valve seat, and a housing. Within the housing are arranged a core, a coil, an armature/plunger arrangement, and a multiple-part return-path arrangement, which together form an electromagnetic circuit. The coil is wound onto a coil former. The armature/plunger arrangement is movable and acts directly or indirectly on the at least one valve closure element. The armature/plunger arrangement is mounted in the coil former via a bearing and comprises at least one armature part and a plunger part. The plunger part is arranged in the valve sleeve and is moveable therein. The armature part is mounted in the coil former via the bearing. The armature part and the plunger part are connected to each other via the plug connection.

Abstract: A solenoid valve includes a valve sleeve comprising a valve seat, a valve closure element which acts on the valve seat, and a housing. Within the housing is arranged a coil, a moveable armature, a core, and a multiple-part return-path arrangement, which together form an electromagnetic circuit. The core is arranged on a side of the housing opposite to the valve sleeve. The coil is wound onto a coil former. The coil former is formed as the valve sleeve and comprises a first portion with an inner diameter. The coil former is arranged on a side of the housing opposite to the core. The armature is mounted in the coil former via a bearing device and acts on the valve closure element. The armature comprises a first part directed towards the core having a diameter which is larger than the inner diameter of the first portion of the coil former.

Abstract: The rotary gas tap (1) with an electromagnetic safety valve (3), is of the conical regulation member (7) type, and the electromagnetic actuator (3a), being of a smaller power and size, is built entirely into a pipe housing (2a) in the body of the tap. The valve actuator (3a) is of the type where the seal member (9) is lifted by means of a DC voltage. The cylindrical magnetic frame (14) penetrating into the coil (15) is guided inside it, and a magnetic capsule (16) surrounding the coil is of a diameter Dh of around 14 mm, adjusted to that of the housing (8) in the body of the tap (2a). The stroke “R” of the seal member (9) corresponds to a gap (G) greater than 2.5 mm, reaching a sizeable passage opening “A” in the valve (9,10) necessary for a maximum inlet flow (Q) in the tap. At the same time the electromagnetic actuator (3a) is of low power, by means of a low reluctance in the magnetic circuit (13-16), although the diameter “Da” of the cylindrical frame is restricted to less than 4 mm.

Abstract: The invention relates to a valve having a movably arranged valve body for selectively opening and closing a valve passage, with a sealing element, for example a lip seal, being arranged on the valve body in such a way that the sealing element comes to bear against a valve seat if the valve body is moved in a closing direction, and with at least one outer peripheral section of the sealing element being resiliently movable or elastically and/or flexibly deformable substantially in the movement direction of the valve body, and with a protective collar being arranged radially outside the outer peripheral section of the sealing element, which protective collar is fixed to the valve body in order to protect the sealing element from damage and/or from excessive deformation.

Abstract: An electronic adapter and a method for controlling a bistable valve for liquid or gaseous media is provided.

Abstract: A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying.

Abstract: The object of the present invention is to provide a solenoid valve which can be assembled easily and has good production efficiency.

Abstract: The invention relates to a solenoid valve, in particular for a brake system of a motor vehicle, having an axially displaceably supported armature, on one end of which a valve sealing body is disposed and with the other end of which a pole core is associated, and having a compression spring acting in prestressed fashion between the pole core and the armature. It is provided that the compression spring is held in prestressed fashion in an axial passage of the armature, between a bolt, having the valve sealing body and held in a selectable position in the axial passage in force- and/or form-locking fashion, and a thrust piece, disposed such that it can be pushed out of the axial passage up to a stop and subjects the pole core to the prestressing force. The invention further relates to an armature for a solenoid valve. Finally, the invention relates to a method for producing an armature for a solenoid valve.

Abstract: A bistable valve (100) is provided according to an embodiment of the invention. The bistable valve (100) includes an armature (108) movable to selectively block and unblock at least a first port (104) and a biasing device (112) configured to provide a first biasing force that biases the armature (108) toward a first position blocking the first port (104). The bistable valve (100) further includes a plurality of substantially radially magnetized permanent magnets (114) configured to provide a second biasing force to the armature (108) substantially opposite to the first biasing force and an electromagnetic coil (116) configured to generate a third biasing force when energized with a first current polarity. The third biasing force is substantially opposite to the first biasing force and in combination with the second biasing force overcomes the first biasing force and moves the armature (108).

Abstract: Relating to a solenoid used as a solenoid valve, a holding circuit and the like for suppressing the occurrence of back electromotive force, and preventing magnetic flux density from deterioration, without a major change of the conventional circuit constitution, is provided. A capacitor is connected in parallel with a resistance which is connected in series to a solenoid. The solenoid is driven at rated voltage by making a first switch and a second switch ON state and the solenoid is kept at holding voltage by making the first switch OFF state. The capacitor slows down the speed of change of applied voltage to the solenoid from the rated voltage to the holding voltage so that the back electromotive force of the solenoid is absorbed, which prevents the extinguishment of magnetic flux density.

Abstract: A method is proposed for operating a metering valve which is realized as a solenoid valve which is actuated by an electromagnet that interacts with an armature which is connected fixedly to a valve needle and, furthermore, is loaded with a pulse-width modulated metering signal which defines the metering of a reagent which is to be introduced into the exhaust-gas region of an internal combustion engine or of a preliminary stage of a reagent, as is an apparatus for carrying out the method. The opening duration of the metering valve is limited to a minimum opening duration, for which the metering valve is opened completely and which is fixed in such a way that a spray mist is always produced during the metering. The procedure according to this invention prevents the reagent from crystallizing and, as a result, firstly ensures exact metering of the reagent and secondly counteracts clogging of the metering valve, in particular if a urea/water solution is provided as preliminary stage of the reagent.

Abstract: A control valve for a double acting type Stirling engine of the type having two or more piston assemblies reciprocating in bores with each of the piston assemblies separating isolated volumes of a working gas. The control valve provides the functions of a check valve which allows an internally defined volume within the engine to be held at a low pressure near the minimum pressure of the cycle volumes. The valve may further be actuated to unload the engine to provide low starting torque and to unload the engine in case of an engine or load malfunction. The control valve further provides a controlled leakage path for working fluid flowing between the cycle volumes and the minimum pressure volume which acts as part of a pressure balancing system for the Stirling engine which maintains the volume or mass of a working fluid in a balanced condition between the cycle volumes.

Abstract: The invention relates to a connecting element for the electric connection of a solenoid valve to a circuit board, having a first electric contact element for electrically contacting the solenoid valve, a second electric contact element for electrically contacting the circuit board, and at least one tolerance adjusting element, and a related fluid assembly. According to the invention the connecting element is configured as one piece, and the first electric contact element and the second electric contact element are connected to each other via the at least one tolerance adjusting element. A first modifiable tolerance adjusting element enables a length adjustment in at least one spatial direction in order to predetermine a desired spatial positioning of the first contact element and the second contact element relative to each other.

Abstract: A valve (10) is provided that combines the features of a solenoid valve and a check valve into a singel combination solenoid check valve. The valve utilizes a first check valve (58) to allow fluid to flow from the outlet passageway (28) of the valve to a chamber (36) above the piston (40) to ensure that the valve remains closed when the outlet pressure in the valve is greater than the inlet pressure. The valve also utilizes a second check valve (42) that closes a bleed aperture through the piston when the pressure in the chamber above the piston is greater than the inlet pressure.

Abstract: The invention relates to a method and a device for producing a high-pressure-tight connection between a pole core and a valve sleeve of a solenoid valve and to an associated valve cartridge for a solenoid valve. According to the invention, the pole core is placed in a two-part compression mold, which comprises a middle die and an outer die, in such a way that a joining gap is produced between an inner bore of the outer die and the placed-in pole core. Subsequently, the pole core is placed against the valve sleeve and the valve sleeve is inserted into the joining gap. Then, the middle die and the outer die are pressed simultaneously with the pole core such that the valve sleeve passes into the joining gap. When a pressed diameter of the pole core is reached, the valve sleeve expands and is shaped in the joining gap between a first shaping edge and a second shaping edge and is joined onto the pole core. The diameter of the inner bore tapers between the first shaping edge and the second shaping edge.

Abstract: A solenoid operated pilot valve comprising a valve assembly including a valve seat and an impact absorbing floating plunger assembly. The solenoid operated pilot valve includes an upper valve body for receiving the valve assembly and a lower valve body coupled to the upper valve body. The lower valve body defines a cavity in fluid communication with an inlet source, a primary outlet, and a secondary outlet. The upper valve body and the lower valve body are sealingly engaged to one another by primary, secondary, and tertiary sealing members. A piston assembly is disposed in the cavity and allowing selective fluid communication between the inlet source and either the primary outlet or the secondary outlet.

Abstract: A hydraulic circuit for instant beverage machines includes a tank, a water extraction pipe contained in the tank, a flow-meter connected to the extraction pipe, a pump, a first vibration-damping valve, a boiler, a second relief and safety valve, a water/steam faucet, a third beverage flow valve, and a recovery tank.

Abstract: A housing for an armature of a fuel injector, a fuel injector and a fuel injection system are disclosed. The armature housing includes a first cylindrical portion for slidably accommodating the armature pin. The first cylindrical portion has a minimum inner diameter that is closely matched to the maximum outer diameter of the armature pin. A second cylindrical portion of the armature housing accommodates the armature. The second cylindrical portion has an inner minimum diameter that is closely matched to the maximum outer diameter of the armature. The disclosed armature housing provides more reliable and more consistent movement of the armature.

Abstract: A solenoid fluid control valve having a valve body containing a solenoid coil, a fluid channel, and a seat, each coaxially disposed about a central longitudinal axis of the body, and a one-piece armature of MRE material. The armature is disposed within the fluid channel and magnetically actuable to seal against the seat, with operation of the solenoid coil actuating the armature with respect to the seat to alter the closure state of a fluid port. Also, a fluid check valve having a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, with the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber. A one-piece armature of MRE material is disposed across the fluid port and magnetically sealable against the magnet element. The armature and magnet element are configured to create a preselected magnetization offset pressure portion of a valve cracking pressure.

Abstract: A solenoid valve includes a coil (102) and an armature (80) adapted to be attracted by the coil are housed in a body (70). A valve seat (74) on which a valve part (82) formed integral with the armature is also disposed in the body. A high-pressure path (76) is connected to the valve seat. The high-pressure path is disconnected from a low-pressure path when the valve part rests on the valve seat, and communicates with the low-pressure path when the valve part moves off the valve seat. The valve part moves onto and away from the valve seat when the armature moves as the coil is electrically energized and de-energized. The energizing force of a coil spring 104 urges the valve part to rest on the valve seat. A through-hole (86) is formed in that portion of the valve part which faces the high-pressure path. A sealing member (106, 110) is fitted into the through-hole and is held in place by the body.

Abstract: A valve assembly includes a hydraulic subassembly with a valve member displaceable along a valve axis for controlling flow of fluid. The valve assembly also includes a solenoid subassembly for selectively displacing said valve member. The solenoid subassembly includes a metallic solenoid housing having an open end and a solenoid housing base. The solenoid subassembly also includes a solenoid coil assembly disposed within the solenoid housing, the solenoid coil assembly having a coil wound around a plastic spool defining a spool bore extending through the spool. The solenoid subassembly also includes a metallic solenoid housing cover closing off the open end of the solenoid housing and attached to the solenoid housing with a crimp connection. The solenoid subassembly also includes a metallic column disposed within and passing through the spool bore extending from the solenoid housing base to the solenoid housing cover.

Abstract: A flow rate controller is arranged such that a control circuit controls a proportional electromagnetic valve so that a flow rate detected by a flow rate sensor reaches a target flow rate. The proportional electromagnetic valve includes a coil supported in a holder, a bobbin and a fixed core, a valve element and a plate spring placed on a movable core, the valve seat, lead-in path, lead-out path, and orifice being formed in a body. The movable core is displaced by balance between an attractive force of the fixed core generated by excitation of the coil and an urging force of the plate spring, thereby adjusting the position of the valve element with respect to the valve seat to adjust the flow rate of a fluid. The orifice has an inside diameter set to a value of “?1 mm or more” and an axial length set to a value to have a ratio of “from 0.1 to 0.6 inclusive” to the inside diameter. The lead-out path has an inside diameter set to be larger than the inside diameter of the orifice.

Abstract: A pressure balanced solenoid operated valve includes a solenoid portion having a coil in a coil retainer. A valve member portion defines a body connected to the solenoid portion. A slidable valve member in the body has opposed first and second ends and a shoulder between the ends. The first end with the coil energized is magnetically drawn toward the coil retainer moving the valve member between a valve closed and a valve open position. A pressure equalizing passage extends in the valve member from the second end. An inlet passage communicates a pressurized fluid at a valve inlet port to the pressure equalizing passage. A connecting passage communicates between the pressure equalizing passage and the shoulder. The pressurized fluid in the pressure equalizing passage acts against the second end and equally and oppositely against both the shoulder and the first end in both the open and closed positions.

Abstract: A solenoid valve includes a core sleeve, in which a valve needle can be arranged in a longitudinally displaceable manner. The core sleeve has at least one radial opening in the casing wall thereof. The core sleeve further has a first sub-sleeve and a second sub-sleeve that axially adjoins the first sub-sleeve. The radial opening in the connecting region is designed as an end face axial recess in at least one of the sub-sleeves. A method for producing such a solenoid valve is also disclosed.

Abstract: A magnet valve includes (i) a magnet armature which is arranged in an axially movable manner in a valve housing and (ii) at least one valve element which is operatively connected to the magnet armature. The valve element is movable by means of the magnet armature so as to open up or close off at least one valve seat of the magnet valve, and at least one flow path is formed between the valve housing and the magnet armature and/or the valve element. A flow throttling element is provided in the flow path. The flow throttling element is arranged between a first end stop, which is formed in particular by the magnet armature, and a second end stop, which is formed in particular by the valve element.

Abstract: A pressure regulating valve having a compression spring fixed in a valve housing for positioning a valve plunger connected to a magnetic armature in the position above a valve seat and not electromagnetically excited, in order to create a connection between at least two pressure medium channels opening into the valve housing, and having a further compression spring disposed coaxially to the first compression spring in the valve housing, having the characteristic that the first compression spring is designed as a control spring forming a stroke and force-specific spring drive by adjusting the spring rates of both compression springs to the force/distance curve of an electromagnet by varying the current in an exciter coil, wherein the further compression spring is designed as a variably adjustable spring acting opposite to the control spring.

Abstract: An electromagnetic valve has: a coil; a casing encircling the coil and having a cylinder portion and nail portions; a movable core moving axially in the wound coil; a fixed core set at an opening end of the casing; a valve body fixed to the opening end of the casing together with the fixed core by bending inwards the nail portions; and a spool valve body moving axially in the valve body. The nail portion is provided with a wide width portion at a root side, a narrow width portion at a top side and a stepped portion between the wide width portion and the narrow width portion. The stepped portion is positioned at a substantially same position as an outer edge of one end portion of the valve body, or positioned at a cylinder portion side with respect to the one end portion outer edge of the valve body.

Abstract: A magnetic control valve is to block an outlet end of a water inflow passage and an inlet end of a water outflow passage of a connection pipe by using a rubber ring. A valve of the rubber ring is opened or closed by a magnetic control switch. The magnetic control switch mainly takes a valve rod carrying permanent magnetic force that completely controls direction of electromagnetic pole as a power source for moving. When a valve plug at an end of the valve rod seals the valve, a metal plate capable of being sucked by magnetic force is combined with the rubber ring to allow both to generate magnetic sucking effect, thereby firmly closing.

Abstract: A solenoid valve having a magnet assembly and a valve cartridge includes a capsule and a valve insert connected to the capsule. An armature, that is movably disposed within the capsule, includes a tappet having a locking element and a main sealing element. A valve body having a main valve seat is pressed into the valve insert, wherein a magnetic force generated by the magnet assembly axially moves the armature against the force of a return spring and plunges the main sealing element into the main valve seat in a sealing manner. The valve body includes an open end which acts as a spring support for the return spring, wherein the return spring is disposed outside of a fluid flow path present between the opened main valve seat and at least one radial downstream opening in the valve body.

Abstract: A solenoid valve assembly is adapted to control product flow through a dispensing system. The dispensing system includes a housing. A plunger is disposed within the housing and has a first axial surface. A stopper is also disposed within the housing and has a second axial surface facing the first axial surface. At least one flow pathway is provided on at least one of the first and second axial surfaces.

Abstract: A gate valve unit that can be used with existing wild animal feeders that have a spinning feed dispensing member. The invention typically includes two flat plate sliding gates that are solenoid actuated and are pulled closed by return springs. The spinning member and the sliding gates can be actuated together by either a timer or by a wireless command from a remote location. The unit can be equipped with a rechargeable battery optionally charged from a solar panel.

Abstract: An apparatus for bi-directionally regulating flow of an actuation fluid includes a conduit and a plurality of baffles. The conduit includes a conduit flow channel that extends longitudinally along a centerline between a first conduit end and a second conduit end. The baffles are sequentially non-coaxially arranged in the conduit. Each of the baffles includes a baffle flow channel that laterally tapers and extends, in a longitudinal direction towards the second conduit end, from a first baffle end to a baffle orifice at a second baffle end. The first baffle end is connected to the conduit, and extends laterally across the conduit flow channel.

Abstract: An electromagnetic actuating unit of a hydraulic control valve which has an armature disposed inside an armature chamber in an axially displaceable manner, and a pole core disposed in a recess. The pole core limits the armature chamber in a direction of movement of the armature. The geometry of the armature serves to adjust the characteristic line of the electromagnetic actuating unit.

Abstract: Disclosed are apparatus and methodology for providing a feedback mechanism to a system operator that provides a positive indication of the position of a valve which controls gas flow to a consumer. Rotation of a stepper motor controlling a valve mechanism is optically monitored and a feedback signal is sent to the system operator indicating positive operation of the valve only when a selected number of rotations of the stepper motor is reported. The stepper motor may be operated in different modes, each associated with different nominal current consumption levels. In a higher current consumption mode, such as a torque-oriented mode, the stepper motor may be stepped a few additional steps after valve closure to ensure seating of the valve.

Abstract: A press-fit space is formed between a hole end wall portion of a stator core and a closing end wall portion of a stopper, which are axially opposed to each other in a press-fit hole of the stator core. At least one of the hole end wall portion of the stator core and the closing end wall portion of the stopper, which are axially opposed to each other, has a recess that increases a volume of the press-fit space formed between the hole end wall portion of the stator core and the closing end wall portion of the stopper.

Abstract: The invention relates to a solenoid wherein a magnetic discontinuity is formed in the pole tube reducing the effective material thickness, such as by reducing the thickness, particularly the wall thickness of the magnetically active material, the front face of the armature facing the pole core and a bottom face in the interior of the pole tube at the pole core each have a contour allowing mutual axial overlapping. This enables advantageous influencing of the force-stroke characteristic curve of the solenoid with low production effort.