Abstract: A rotary ball for a fluid control valve controlling a fluid stream with a spherical ball control member and a spherically shaped dome containing a plurality of apertures at the ball inlet bore end. The fluid stream is dissipated and broken up into smaller streams by being forced through the apertured dome. One or more apertured discs can be mounted in the bore to obtain the desired valve capacity and noise attenuation. A domed apertured plate may also be used at the bore outlet end. Substantially constant noise attenuation is obtained over the full travel of the valve from the initial open position to the fully opened position.

Abstract: A rotary ink valve assembly with a plurality of rotary ink valves contained in a housing (10), having a stationary outer portion (16) with first and seconds ends (50, 52) connected by a cylindrical body (54) having at least one bypass aperture (42) adjacent the first end (50) and at least one ink output aperture (40) adjacent the second end (52). A substantially tubular inner portion (18) rotates within the cylindrical interior area (56) of the outer portion (16) with at least one bypass aperture (66) in the side wall (64) adjacent a first closed end (60) and at least one ink output aperture (68) in the side wall (64) adjacent a second open end (62). Ink is supplied to at least the open second end (62) for supplying ink to the inner portion (18) while the inner portion (18) is rotated by means (28, 32, 34) between an open position, a closed position and an intermediate position.

Abstract: A flow control device wherein an operating shaft having two valve bodies is actuated by a single stepping motor to control the flow rate of fluid flowing through at least two by-pass passages. A portion of the operating shaft is supported by a first bearing member located in a boundary portion between a casing with the stepping motor incorporated therein and an air dispensing housing, and the shaft portion of the operating shaft located between the two valve bodies is supported by a second bearing member disposed in the interior of the housing. The two valve bodies are centrally provided with axial holes, through which is inserted the operating shaft to fix the valve bodies replaceably. The second bearing member is formed in the shape of a bottomed cylinder having a flange portion at a free end of the cylindrical portion, and at this flange portion the second bearing member is held between the casing and the housing together with the first bearing member.

Abstract: A microvalve with a multi-layer structure for regulating or controlling fluid flows is proposed. In a first layer at least one feed connector, a first return connector, at least two working connectors and at least a second return connector are structured. The microvalve has a second layer which is connected via an at least first structured intermediate layer with the first layer. Means are structured in the second layer which are electrostatically operable and by means of which the degree of opening of the at least one feed connector can be changed. The microvalve is constructed symmetrically in respect to the second layer, in that a third layer, structured mirror-reversed in respect to the first layer, is applied to the second layer via a further structured intermediate layer.

Abstract: A proportional pressure control valve has a metering spool which selectively meters flow between an axial first port and radial second ports. The spool is axially reciprocable with a larger face toward the first port and a smaller face opposite from the first port, with a pressure equalization bore through the spool. A first spring extends between the smaller face of the spool and an armature and the armature is biased to a normal position by a second spring and also has a pressure equalization bore through it. Radial orifices are formed in the end of the armature facing the smaller face of the spool, and the end of the armature seats in the main bore in which the spool is seated. Passageways extend from the orifices to the second ports, and two selectively and variably energizable electromagnetic coils coaxially encircle the armature, one to draw the armature to one side of the normal position and the other to draw the armature to the opposite side.

Abstract: A gate valve has a housing, a valving element in the housing, and a seat in the housing which cooperates with the valving element and extends transverse to the flow direction. The valving element is carried by a spindle which serves to move the valving element into and out of engagement with the seat. A support for the spindle is disposed in the housing and has a central, outwardly directed flange which defines a passage for the spindle. The flange is coupled to the spindle in the region of the valving element so that the support moves with the spindle. The support is in sliding engagement with the internal surface of the housing to thus guide the spindle and support the latter against transverse forces generated by flow through the housing.

Abstract: In electromagnetically actuatable valves having a core, surrounded by a magnet coil, and an armature that acts upon a valve closing body by means of a connecting tube, the connection between the connecting tube and the hard valve closing body is embodied by first providing the metallically harder closing body with a first spot weld, and after that this first spot weld is welded to the metallically softer connecting tube by means of a second spot weld, until the at least partly encompassing weld seam is formed between the valve closing body and the connecting tube, the weld seam assuring a safe and reliable connection. This embodiment of the valve is particularly well suited for injection valves of fuel injection systems.

Abstract: The invention provides a flow control system well suited for use in intravenous fluid delivery systems comprising a flow restrictor wafer having one or more flow limiting flow restrictor paths formed thereon. The system provides fixed flow rate control. The system also provides means for selectively orienting at least two flow restrictor paths relative to the main fluid passage to varying the flow rate.

Abstract: A flow control device includes a housing with separate main flow and flow control (servo) passages between an inlet port and an exit port. A control chamber in the housing is in fluid communication with the servo passage. A flexible membrane forms a partition between the main flow passage and the control chamber. The servo passage includes a variable servo orifice upstream of the control chamber and a fixed orifice downstream of the chamber. When the servo valve is open to permit passage of fluid into the control chamber, the resultant pressure on the membrane maintains the main valve closed. The main valve opens in response to closing the servo valve. The fixed orifice has a profile sufficiently small to provide for an acceptable leak or continuous fluid flow through the device when the servo valve is open, and further provides for a soft start when the servo valve is closed to open the main valve.

Abstract: An improved bulk cement metering apparatus includes a valve housing having a cylindrical inner housing bore. The housing has an inlet opening through a side wall thereof. A housing outlet is defined at an open lower end of the cylindrical valve housing. A cylindrical valve element is concentrically and rotatably received within the housing bore. The valve element is rotatable relative to the valve housing between a first fully closed position and a second fully open position. In the closed position the valve element completely blocks the inlet opening. In the open position the inlet opening is completely open. As the valve element rotates from its closed position to its open position a circumferentially extending cutout means thereof progressively uncovers an increasing upper portion of the inlet opening. This design results in decreased plugging of the metering device at low flow rates.

Abstract: A zone valve for a hydronic system (either heating or cooling) in which a motor-driven actuator rotates a ball valve through approximately 90.degree., between closed and opened positions. The ball valve provides lower flow resistance than that of conventional heat-motor and motorized zone valves, allowing the use of lower rated pumps, and allowing a single size valve to serve most applications. A restoring torque is provided by a tension spring so configured that it provides sufficient restoring torque to overcome the frictional torque of the ball valve. The restoring torque is kept from building up during rotation by configuring the spring in such a manner that its force varies inversely with the effective moment arm. The restoring torque varies by no more than 20% (preferably no more than 10%) during rotation of the ball valve.

Abstract: A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly of the body. The valve rotor member of the conditioner valve is driven by a Geneva drive system, to provide accurate positioning of the rotor member in its various positions. A valve seat member is located adjacent the rotor member, and provides a construction which improves the seal between the rotor member and the surface of the valve body adjacent thereto. The three-piece assembly of the valve body facilitates providing a valve capable of either upflow or downflow brining by replacing the lower valve section. A brine injector valve is mounted exteriorly of the valve body.

Abstract: A fluid control valve (10) comprising: a fluid carrying core (12) and separatable magnetic field generating portion (14). The fluid carrying core (12) comprises: a magnetic armature (30) movable through a working gap (32) within a thin walled tube (34). The armature includes a first plurality of grooves (100) to permit fluid flow thereacross. The tube is joined to a magnetic first member (50) in a manner to form a leak-free seal (56) generally at one end of the tube. A second member (80) partially seals the other end of the tube and includes second flow means a second plurality of axial grooves (84) for receiving fluid carried to the valve (10) and for communicating same with the armature (30). Various passages are provided to carry fluid to and from the valve. The position and number of passages permit the valve to be used as a two-way valve or as a three-way valve passage means (88;64) for transporting fluid away from the valve (10).

Abstract: The electromagnetically actuatable fuel injection valve (1) for spark ignition engines improves, with a relatively low production outlay, the operation and the frictional behavior by arranging between the armature (15) and the stop face (16) a lift-limiting plate (21) which bears on the stop face side a bearing plate (27) which is acted upon by the spring (29), and is seated with a curved pressing surface (25) on an inner, curved receiving surface (23) of the lift-limiting plate (21) which connects with an outer, plane annular face (22) located opposite the stop face (16), and by the lift-limiting plate (21) being supported on the opposite side with a curved bearing surface (19) on a correspondingly curved bearing surface (17) of the armature (15).

Abstract: A sensor-operated battery powered flush valve for a toilet device includes a valve body having a water inlet and a water outlet. A diaphragm valve movable within the valve body controls the flow of water between the inlet and the outlet. A latching solenoid is mounted within the valve body and controls movement of the diaphragm between open and closed positions. A battery is mounted to provide the power for the latching solenoid. An infrared sensor connects the battery to the latching solenoid to cause the solenoid to move the diaphragm to a valve open position. A magnetically-operated switch is positioned within the valve body and a magnet carried by the diaphragm will cause the switch to close when the diaphragm moves to a valve open position. Closure of the magnetic switch causes the solenoid to move to a position in which the diaphragm will close flow between the inlet and the outlet of the flush valve.

Abstract: A lower power type, motor-controlled magnetic valve comprising a reversible motor, a speed reducing gear controlled by said reversible motor to move an external magnetic set into a first position in attracting an internal magnetic set or a second position in repulsing said internal magnetic set, causing a plunger to leave from or press against a valve flap, permitting said valve flap to open or close a discharging pipe.

Abstract: A chemically inert diaphragm valve is provided in which the diaphragm is attached to the plunger of a solenoid by a threaded insert. The diaphragm material, which is preferably a relatively flexible, chemically inert material such as Kalrez or Chem-Raz, is molded around one end of a machined piece with the other end of the piece being threaded. The threaded end may be received by the tapped end of a solenoid plunger. The piece contained within the diaphragm material acts to stabilize cold-flow at the valve site as well as perform the valving function.

Abstract: The connection strip is for use with a dual-purpose hot water and central heating boiler. The strip comprises four modules made of molded hard plastic and assembled side-by-side by being mutually juxtaposed with tie bars passing through them, the modules being respectively associated with outgoing heating water, outgoing domestic hot water, incoming cold water, and returned heating water, each module including the corresponding stopcocks and ducts together with lengths of a short-circuit duct enabling the modules to co-operate to form a short-circuit on the heating circuit, suitable for feeding water to said heating circuits and for enabling leak tests to be performed when the boiler is not present.

Abstract: An electromagnetically actuatable valves, including an adjusting bush pressed into a flow bore of a core of a coil in order to adjust a spring force of a restoring spring. The novel adjusting bush includes at least two longitudinal beads, extending in the direction of the longitudinal valve axis on its circumference that protrude past a jacket of the adjusting bush in the radial direction. The transitional region between the jacket and each of the longitudinal beads is embodied as rounded, at least in the direction of the longitudinal valve axis. Thus when the adjusting bush is pressed into the flow bore of the core, the production of chips at the adjusting bush and flow bore is prevented. The adjusting bush is especially well-suited for injection valves of fuel injection systems in internal combustion engines.

Abstract: A hermetically sealed, precision fluid valve assembly including a ball valve element is disclosed. The assembly includes a valve element retainer comprising a thin, flexible member having a first portion operatively associated with the valve element and a second portion, extending from the first, secured to the body of the valve assembly. The valve element retainer guides the motion of the valve element and is designed to reduce friction and eliminate the generation and entrapment of contaminants, thereby minimizing hysteresis in the operation of the valve.