Abstract: An electronic throttle control system having a housing and cover member with a throttle valve, gear mechanism, motor, and failsafe mechanism. A spring member positioned between the housing and sector gear member which is attached to the throttle valve shaft, biases the throttle valve plate member toward the closed position. A spring-biased plunger member biases the throttle plate member from its closed position to a default or “limp-home” position. A stop shoulder on the sector gear is transverse to the longitudinal axis of the plunger mechanism midway through the default range of travel of the sector gear and plunger member. This reduces stresses on the components and minimizes friction and wear on the gear train mechanism.

Abstract: A valve includes a fluid inlet passage having a fluid inlet, a fluid outlet passage, an orifice between the fluid inlet passage and the fluid outlet, and a moveable valve plug adapted to move with respect to the orifice to vary the flow of fluid between the fluid inlet passage and the fluid outlet passage. A movable valve stem is attached to the valve plug and a travel limiting device is attached to the valve stem. The travel limiting device permits the valve to be placed in one of a plurality of desired flow configurations.

Abstract: A two-way valve has a proximity switch attached detachably to the outside of a bonnet. A metallic detection member is connected to an end of a rod which is displaced in unison with a diaphragm for opening and closing a fluid passage in the two-way valve. The proximity switch detects the metallic detection member for detecting whether said two-way valve is in the ON state where the fluid passage is opened or the two-way valve is in the OFF state where the fluid passage is closed.

Abstract: A flush valve includes a body having an inlet and an outlet and a valve seat at the outlet. There is a piston assembly movable in the body toward and away from the valve seat to control flow from the inlet through the outlet. A pressure chamber is formed in the body above the piston assembly, at least in part by a cover attached to the body. Pressure in the pressure chamber normally maintains the piston assembly closed upon the valve seat. There is a relief valve in the piston assembly for venting the pressure chamber to the outlet, permitting the piston assembly to move away from the valve seat to open flow through the outlet. There is an adjustment assembly located in the flush valve cover which permits adjustment of piston assembly stroke. The adjustment assembly includes a housing mounted in the cover, a sleeve axially movable in the housing, and an adjustment element for causing movement of the sleeve.

Abstract: A valve actuator apparatus and method comprises an operator housing secured to a bonnet assembly. The bonnet assembly is secured to the valve body, and includes a bonnet stem movably within a bonnet housing for moving a gate within the valve body to open and close the valve. A downstop member is fixably secured to the bonnet stem and engages removable stem spacers which are added or removed to obtain a selected bonnet stem drift setting. The operator housing connects to a base ring that surrounds the bonnet housing and rotates to allow positioning of a fluid port in the operator housing. The operator housing may removed and replaced without altering the bonnet stem drift adjustment. A top shaft extends from the operator housing and rotates with respect to the bonnet stem to prevent torque transmission from the top shaft to the bonnet stem. A replaceable sealing cartridge sealingly supports the top shaft for axial movement within the operator housing.

Abstract: A dual end stop is provided for setting precise open and closed positions for the valve to which the pneumatic actuator is attached. In a preferred embodiment, a stop assembly housing contains two stop adjustment bolts as well as a cam that defines first and second stop surfaces. The stop assembly housing is preferably mounted to the actuator housing outside of the pressurized zone contained by the actuator housing. The stop bolts and associated threaded apertures are designed for minimum overhang of the stop bolts to provide more support. The stop assembly housing not only preferably houses the stop assembly components but also preferably serves as an adapter plate for the various valves to which the actuator may be mounted.

Abstract: A cold/hot water switching/controlling valve structure of a mono-spout faucet, which includes a valve main body, an adjusting seat, a restricting member, an upper switching/controlling valve, a lower switching/controlling valve, and a switching/controlling seat. The restricting member can be directly taken out for re-adjusting the restricting member to a desired position so as to easily adjust the amount of discharged hot water.

Abstract: An adjustable stop apparatus for limiting movement of an element of a metering valve for setting a flow limit condition of the valve, the apparatus comprising a stop, a housing, a rotary adjuster device connected to the stop for adjustably positioning the stop relative to the housing, and a guide device operable to guide and secure the adjuster device relative to the housing into any one of a plurality of pre-set positions determined by the guide device.

Abstract: A device for adjusting the central position of the pistons and the angular position of the pinion in a valve driving actuator comprises a tubular body in which are tightly movably arranged a first and second pistons having opposite racks, meshing with a central pinion which can turn through discrete angles. The main feature of the invention is that the inventive device further comprises limit means for limiting the stroke of the pistons toward the pinion, which means can be accessed from the outside of the tubular body.

Abstract: The invention relates to a cartridge for a single lever mixer faucet comprising a fixed (4) and a moveable sealing washer (3) which are arranged in a housing (1), whereby the movable sealing washer (3) comprises a recess (15) for engaging with a control tappet (9) of a control handle (11) which traverses a pivot support (10). The invention provides that the moveable sealing washer (3) comprises, on the surface thereof which faces the control tappet (9) and which is located in the area of the outer periphery of the washer (3), a step (14) which serves as a volume stop that can cross over with regard to the pivot support (10).

Abstract: The present invention relates to a control valve, especially for fuel injection devices for internal combustion engines, preferably diesel engines, with a valve housing within which at least one piston is displaceable and which comprises stops for the piston, wherein at least one of the stops is axially displaceable.

Abstract: A valve for cryogenic fluids that divides incoming fluid into separate outlets. The valve prevents the inadvertent leakage or reverse flow of fluid through the valve using a swing-type check valve, and may also remove undesirable debris from the fluid. The valve comprises a valve housing and at least one valve actuator. The housing includes an inlet and at least one outlet, and has an inlet chamber and at least one outlet chamber that are adapted to receive fluid from the inlet and deliver the fluid to the outlet. The inlet chamber and the outlet chamber are fluidly coupled by a valve aperture that is defined by a valve seat. The valve actuator cooperates with the valve seat to seal the inlet chamber from the outlet chamber. In one embodiment, the valve includes a check valve that is pivotally mounted in the valve housing to prevent fluid flow from the valve housing through the inlet. In another embodiment, the valve includes a pair of outlets, a pair of outlet chambers and a pair of valve actuators.

Abstract: A two-stage fluid pressure regulating valve has a solenoid operated lever for moving a regulator shaft between two positions. The regulator shaft biases the regulator spring of a flow rate control diaphragm valve. When the solenoid is actuated the lever is pivoted, applying increased force to the regulator spring, to change the valve set point to its higher pressure output. A return spring returns the arm to the low pressure set point when the solenoid is de-energized. A pair of adjustable stops are positioned for engagement by the lever and forming limits for its motion, for independently adjusting the low and high pressure set points for the valve.

Abstract: A shower valve assembly comprising a handle operably connected to a valve stem of a mixing valve. A limit stop is positioned between the valve stem and the handle to limit the range of motion of the handle and thereby limit the proportion of hot and cold water mixed by the valve to control the temperature of the mixed water emitted through the valve.

Abstract: A vent valve for a gas strut includes a first passage (9,12) in a body (2) extending from one side of a valve seat (8) to a surface of the body (2) which, in use, is exposed to the interior of a gas strut, and a second passage (15) in the body (2) extending from the other side of the valve seat (8) to a body surface which, in use, is exposed to the exterior of the gas strut. A ball (18) is provided between a screw (17), threadedly engaged with the second passage (15), and the valve seat (8), whereby tightening of the screw (17) forces the ball (18) into engagement with the valve seat (8). A controlled release of gas through the vent valve is thereby possible.

Abstract: A valve actuator apparatus and method comprises an operator housing secured to a bonnet assembly. The bonnet assembly is secured to the valve body, and includes a bonnet stem movably within a bonnet housing for moving a gate within the valve body to open and close the valve. A downstop member is fixably secured to the bonnet stem and engages removable stem spacers which are added or removed to obtain a selected bonnet stem drift setting. The operator housing connects to a base ring that surrounds the bonnet housing and rotates to allow positioning of a fluid port in the operator housing. The operator housing may removed and replaced without altering the bonnet stem drift adjustment. A top shaft extends from the operator housing and rotates with respect to the bonnet stem to prevent torque transmission from the top shaft to the bonnet stem. A replaceable sealing cartridge sealingly supports the top shaft for axial movement within the operator housing.

Abstract: The present invention relates to an improved vent valve for a gas strut, and to a gas strut incorporating such a vent valve. A vent valve (1) is provided having a first passage (9,12) in a body (2) extending from one side of a valve seat (8) to a surface of the body (2) which, in use, is exposed to the interior of a gas strut, and a second passage (15) in the body (2) extending from the other side of the valve seat (8) to a body surface which, in use, is exposed to the exterior of said gas strut. A ball (18) is provided between a screw (17), threadedly engaged with the second passage (15), and the valve seat (8), whereby tightening of the screw (17) forces the ball (18) into engagement with the valve seat (8). A controlled release of gas through the vent valve is thereby possible.

Abstract: A housing (2) has an upper portion engaged with a cylindrical stopper member (20) in screw-thread fitting so as to be able to vertically advance and retract the stopper member (20). The stopper member (20) has an outer thread (20a) engaged with a nut member (21) and has an inner thread (20b) engaged with a thrust screw member (23) each in screw-thread fitting. The stopper member (20) has a stopping portion (A) which prevents the downward movement of the intermediate transmission member (25) connected to the thrust screw member (23) over a predetermined distance. This inhibits a metal diaphragm (12) from being excessively pushed to a valve seat (15). When further moving the diaphragm (12) for valve closing, the nut member (21) is loosened and at the same time the stopper member (20) is advanced downwards to thereby define a gap between a receiving portion (B) of the intermediate transmission member (25) and the stopping portion (A).

Abstract: An actuator for an electromagnetically adjustable valve having a drive unit which moves an adjustment element in at least one direction. The adjustment element is divided into at least two assemblies and includes a stroke setting that can be adjusted with respect to a defined operating position, within an adjustment process. The actuator has a reference plane on which a stop can be attached as a setting device. One assembly of the adjustment element enters into operative connection with the stop during the assembly process, and the other assembly of the adjustment element is held in a defined operating position by a positioning device. The two assemblies of the adjustment element can be connected using a securing device which is effective in at least one direction.

Abstract: A gas motor actuator is provided for opening or closing an actuated valve, such as a pipeline valve, using power gas, which is a gas under pressure. The gas motor actuator includes a gas turbine motor, a high-volume shuttle valve coupled to the gas turbine motor, and a pair of control-limit valve assemblies for delivering power gas to the shuttle valve. One control-limit valve assembly is for opening the actuated valve, and the other is for closing the actuated valve. The gas motor actuator can receive a signal to open or close the actuated valve, which allows pilot gas to open a control valve portion of one of the control-limit valve assemblies, allowing power gas to pass through the control portion to the shuttle valve. The power gas passes through the high-volume shuttle valve, through the gas turbine motor, and back to the shuttle valve for discharge as an exhaust. The power gas rotates a shaft in the gas turbine motor, which, through gears, opens or closes the actuated valve.

Abstract: A valve actuator apparatus and method comprises an operator housing secured to a bonnet assembly. The bonnet assembly is secured to the valve body, and includes a bonnet stem movably within a bonnet housing for moving a gate within the valve body to open and close the valve. A downstop member is fixably secured to the bonnet stem and engages removable stem spacers which are added or removed to obtain a selected bonnet stem drift setting. The operator housing connects to a base ring that surrounds the bonnet housing and rotates to allow positioning of a fluid port in the operator housing. The operator housing may removed and replaced without altering the bonnet stem drift adjustment. A top shaft extends from the operator housing and rotates with respect to the bonnet stem to prevent torque transmission from the top shaft to the bonnet stem. A replaceable sealing cartridge sealingly supports the top shaft for axial movement within the operator housing.

Abstract: A diverter valve includes a cup-shaped, substantially cylindrical body with a plurality of ports extending from the side of the body, each communicating with a hollow in the body. A disk shaped top is held in sealing engagement with the body. A plug is rotatably positioned within the body and seals against the body for closing a selected one of the plurality of ports. A portion of the plug extends through the top to permit the plug to be turned. A handle is coupled to the extending portion of the plug. The handle has an adjustable stop for limiting the rotation of the plug.

Abstract: A rotary valve actuator and linkage include an actuator having a tubular housing with end caps and a piston that is moved by fluid pressure against a compression spring. A rolling diaphragm is used to bias the piston. A pair of ports are provided on opposite sides of the housing, and a linkage having two arms is interconnected with the piston through the ports. The linkage is coupled to a rotary valve shaft and linear movement of the piston causes rotational movement of the shaft. The linkage includes two separate arms and a centerpiece. In one embodiment, the arms and the centerpiece interengage each other at angled surfaces that force the centerpiece and the arms into radial engagement with the shaft when axial compression is provided to the arms and centerpiece to force them toward each other. In another embodiment, each of the linkage arms is provided with a collet having radially movable portions.

Abstract: A rotary valve actuator with movable actuator linkage maintained in a constant "pull-pull" tension, includes a sliding canister, rotatable lever, and a return spring substantially aligned in-line with each other. The linear motion of the canister in response to an expanding and contracting pressurized bladder is converted through chain linkage into rotary lever motion. The return spring is connected through respective chain linkage to the lever so the pulling tension of the spring/lever linkage rotates the lever and maintains tension on both chain linkages. Adjustable travel stops are provided. In an alternate embodiment the return spring chain linkage is configured at right angles to the linear movement of the canister. A double acting rotary valve actuator with pressurized bladders on opposite sides of a rotatable lever. One bladder is oval shaped.

Abstract: A fuel injection valve for internal combustion engines in which the adjustment of the valve needle stroke is carried out through a deformation of a valve seat carrier. The adjustment of the valve needle stroke is carried out through a plastic deformation in the form of a constriction on the circumference of the seat carrier. The valve and the process for manufacturing the valve are particularly suited for fuel injection valves of fuel injection systems for mixture compressing internal combustion engines with externally supplied ignition.

Abstract: The fuel injection nozzle according to the present invention comprises a nozzle body provided with nozzle holes, a needle valve that opens and closes the nozzle holes, an armature that is mechanically linked with the needle valve and a stator that faces opposite the armature, so that, by displacing the stator with a micromotor, the lift quantity of the needle valve can be adjusted. In addition, a cover member that rotates slidably around the circumference of the nozzle body is provided and by causing this cover member to rotate with a micromotor, the opening area of the nozzle hole contributing to injection is varied. With these structural features, it becomes possible to intentionally achieve a desired injection pattern.

Abstract: A device for regulating exhaust air flow in a ventilation system when a rack is removed from the system. The device includes a housing forming an air conduit. A valve is mounted in the housing with the valve being moveable between an open position when the device is connected to the rack, and in one of a plurality of partially preset closed positions when the device is not connected to the rack. A valve adjustment member selects the one of a plurality of partially closed positions and is preset during factory testing. When valve is installed at facility and valve is removed from rack the adjustment is fully automatic. The technician merely disconnects the exhaust drop hose with valve attached, and valve automatically adjusts to a preset back pressure duplication position (partially closed position).

Abstract: A valve position adjustable lock mechanism is secured to the handle which is connected to the stem of a valve element to control the position of the valve element and accordingly the size of the opening of the valve element. An indicator ring is secured to the handle and is provided with position indicias thereon to indicate the position of the valve element from a fully open to a fully closed position. An arresting projection arrests the handle at the fully open and fully closed positions. A stopper ring is disposed over the indicator ring and displaceable for engagement and disengagement therewith. The stopper ring has an abutment flange for abutment with a fixed stop element secured to the valve body. The stopper ring has an alignment window to position the abutment means at a desired location selected by the position of the alignment window relative to the position indicias on the indicator ring.

Abstract: A non-riser valve assembly 30 includes a bonnet or housing 32, a bushing 34, a stem 36, a washer 38 and a stop 40. The assembly 30 further includes a coupling 42, a rotatable or movable disk 44, a fixed disk 46 and a bottom seal 48. In assembly, the bushing 34 and the stem 36 are located within an opening 50 of the housing 32 with the bushing being located between the housing and the stem. One of the stem 36 extends from one end of the opening 50 and the stop 40 is removably attached to the stem to limit the rotational movement of the stem within the housing. The coupling 42 is located in the opening 50 of the housing 32 and is in driving engagement with the opposite end of the stem 36. The movable disk 44 is located with the opening 50 and is coupled to the coupling 42 for rotation therewith. The fixed disk 46 is attached to the housing 32 within the opening 50 and is formed with a surface 224 which is in water-sealing engagement with a surface 162 of the movable disk 44.

Abstract: The invention relates to a valve with a piston which is movable to and fro in a housing between an open and a closed position, wherein the piston has a first contact zone which in the closed position comes into contact with a second contact zone on the housing. The first contact zone on the piston is constructed as a cone which increases from a first diameter to a greater second diameter. The second contact zone on the housing is constructed as a flexible lip. The piston is configured in such a way and the flexible lip is deformable in such a way that--when the valve is installed--the piston can be pushed through the opening of the flexible lip in the region of the greater second diameter of the conical surface.

Abstract: A non-riser valve assembly 30 includes a bonnet or housing 32, a bushing 34, a stem 36, a washer 38 and a stop 40. The assembly 30 further includes a coupling 42, a rotatable or movable disk 44, a fixed disk 46 and a bottom seal 48. In assembly, the bushing 34 and the stem 36 are located within an opening 50 of the housing 32 with the bushing being located between the housing and the stem. One of the stem 36 extends from one end of the opening 50 and the stop 40 is removably attached to the stem to limit the rotational movement of the stem within the housing. The coupling 42 is located in the opening 50 of the housing 32 and is in driving engagement with the opposite end of the stem 36. The movable disk 44 is located with the opening 50 and is coupled to the coupling 42 for rotation therewith. The fixed disk 46 is attached to the housing 32 within the opening 50 and is formed with a surface 224 which is in water-sealing engagement with a surface 162 of the movable disk 44.

Abstract: A water temperature and flow rate control device, including a casing, a rotary cap mounted on the casing to control the horizontal turning angle and vertical tilting angle of a control lever in regulating the temperature of output volume of mixed hot and cold water, and a wedge block adjustably fastened to the control lever and adapted for adjusting the tilting angle of the control lever.

Abstract: A new FAUCET SAFETY STOP for preventing a user, especially a child, from turning a water faucet beyond a predetermined point. The inventive device includes a clip member having a pair of spaced apart arms, and a mid-portion connecting the arms together. The arms define a space therebetween adapted for receiving a portion of a base of a faucet between the arms. A stop tab is extended from the first edge of the clip member.

Abstract: A non-riser valve assembly 30 includes a bonnet or housing 32, a bushing 34, a stem 36, a washer 38 and a stop 40. The assembly 30 further includes a coupling 42, a rotatable or movable disk 44, a fixed disk 46 and a bottom seal 48. In assembly, the bushing 34 and the stem 36 are located within an opening 50 of the housing 32 with the bushing being located between the housing and the stem. One of the stem 36 extends from one end of the opening 50 and the stop 40 is removably attached to the stem to limit the rotational movement of the stem within the housing. The coupling 42 is located in the opening 50 of the housing 32 and is in driving engagement with the opposite end of the stem 36. The movable disk 44 is located with the opening 50 and is coupled to the coupling 42 for rotation therewith. The fixed disk 46 is attached to the housing 32 within the opening 50 and is formed with a surface 224 which is in water-sealing engagement with a surface 162 of the movable disk 44.

Abstract: A rotary valve actuator and linkage provide an actuator having a tubular housing with end caps and a piston that is moved by fluid pressure against a compression spring. A rolling diaphragm is used to bias the piston. A pair of ports are provided on opposite sides of the housing and a linkage having two arms is interconnected with the piston through the ports. The linkage is coupled to a rotary valve shaft and linear movement of the piston causes rotational movement of the shaft. The linkage includes two separate arms and a centerpiece. The arms and the centerpiece interengage each other at angled surfaces that force the centerpiece and the arms into radial engagement with the shaft when axial compression is provided to the arms and centerpiece to force them toward each other.

Abstract: A mixer tap cartridge including a body (10) having a bush (23) with a reference axis, internal flowrate adjustment members disposed inside the body and a lever (20) cooperating with these internal members to adjust the flowrate hinged to the bush (23) about a transverse pin (24) and having an exterior part (21) projecting out of the body, the lever and the bush having complementary bearing surfaces (25, 26) conjointly defining an extreme flowrate configuration of the lever, characterised in that the bearing surface (25) of the lever is part of a projecting portion of a pin (27) sliding in a transverse hole (28) in the lever, this pin cooperating with an adjustment member (31) mobile in a housing (30) in the lever accessible from outside the cartridge.

Abstract: A demand responsive flow control valve including a housing in a fluid conduit between a pump and a motor vehicle power steering gear, a flow control orifice in the fluid conduit, and a valve pintle supported on the housing for linear translation. An inboard stop on the housing engageable by the valve pintle defines an active position of the valve pintle, obstructing the flow control orifice and reducing the effective area of the latter. The inboard stop is a tubular sleeve interference fitted in a bore in the housing. The position of the tubular sleeve on the housing corresponding to the active position of the valve pintle is established by inducing linear translation of the tubular sleeve into the bore in the housing as a unit with the valve pintle while monitoring the corresponding flow rate through the fluid conduit.

Abstract: A diaphragm valve has an adjustment device for precisely setting maximum valve lift. A bushing threaded into the bonnet clamping the diaphragm within the valve body forms at its inward end an axially facing engagement surface which is engaged by an outwardly, axially facing engagement surface formed by a shoulder on the valve stem. The bushing can be threaded in or out without disassembling the entire valve to adjust the maximum lift to the precise setting desired. The bushing is then locked in place such as by a thread adhesive. Alternatively, the bushing can be threaded on the valve stem and be provided with a radial flange forming the axially facing engagement surface which engages a shoulder on the bonnet.

Abstract: A spigot actuator assembly for dispensing liquid from a spigot mounted on a projecting spout of a bag-in-box container for operating a dispensing lever on the spigot to move the dispensing lever from a horizontal closed position to an upwardly projecting open position for dispensing the liquid from the container, and for quickly replacing the container when desired. A method of using the spigot actuator assembly including snapping the spigot actuator assembly onto the spout, pushing down on a lever of the spigot actuating assembly for dispensing the liquid, releasing the actuator assembly to automatically close the spout, and snapping off the actuator assembly from the spout when it is desired to remove the container, and snapping a replacement container onto the actuator assembly.

Abstract: An adjustable pivot valve assembly (10) for use in a fluid flow system (S). A valve body (12) has a fluid flow path therethrough and includes an inlet (14), an outlet (16), and a valve orifice (18) formed intermediate the inlet and outlet. A valve seat (28) is mounted for movement relative to the orifice to open and close the fluid path. The valve seat is attached to a valve stem (30). A solenoid assembly (50) is supplied an input from a sensor/control unit (S) to effect movement of the valve seat. What would otherwise be a linear movement of the valve stem and valve seat is translated into movement of a plunger (78) interconnected with the valve stem to produce a movement which is orthogonal to a longitudinal axis of the valve stem. This translated movement causes the valve seat to pivotally move about the orifice to effect an opening of the orifice for fluid to flow between the inlet and outlet.

Abstract: A multiple step valve opening control system, particularly for an EGR control valve unit, having a plurality of valve lifts. The system comprises a valve member for opening a fluid passage in multiple steps, a first piston slidably housed in a housing, a second cylinder substantially coaxial with the first piston, a second piston fitted in the second cylinder and coupled to the valve member, and a first piston stroke regulating member which is moved selectively to a first position for regulating an allowable displacement of the first piston to a first predetermined extent (l.sub.1) or to a second position for regulating the allowable displacement of the first piston to the first predetermined first extent (l.sub.1) plus a third predetermined extent (l.sub.3). By changing the position of the first piston displacement regulating member, the valve member is opened by various valve lifts.

Abstract: A water temperature setting structure of combination faucet, including a temperature setting sleeve and an adjustment bolt. The temperature of discharged water can be quickly directly set by the temperature setting sleeve and the adjustment bolt. In the case that the setting is not completed yet, a user only needs to microadjust the adjustment bolt through a small distance so as to quickly set the temperature of discharged water. Once the adjustment bolt is loosened, the temperature setting projection is only moved forward through a small distance and stopped by the right side of the engaging block so that the water temperature will be not excessively increased so as to avoid scading of the user.

Abstract: In a device for monitoring the valve stroke of a valve that is pneumatically or hydraulically driven and comprises a valve body that is actuated by means of a pressure spindle (16), in particular, a diaphragm valve, a control spindle (20) is effectively connected to the pressure spindle (16). A control element (38) is arranged on the control spindle (20) in order to actuate a measuring element that serves as a signal transmitter for the valve position. The control element (38) has a control surface (40) that is inclined relative to the actuating axis (z) of the control spindle (20), and a displacement transducer (36) that measures the respective distance from the control surface (40) which corresponds to the valve position is arranged on the valve.This device makes it possible to monitor continuously the valve stroke over the entire range of movement of the valve.

Abstract: In a pneumatically or hydraulically actuated valve, in particular, a diaphragm valve, that comprises a valve body that can be actuated via a coupling rod (14), the coupling rod (14) is held in the corresponding position for adjusting a minimum flow cross section via an adjustable limit stop. The coupling rod (14) passes through the housing cover (12) of a valve housing (10) and serves as an indicator for the valve position.The coupling rod (14) is guided in a sliding fashion inside a sleeve (16), with said sleeve (16) engaging with a threaded bushing (20) that is connected with the housing cover (12) in a fixed manner via an external thread (18), and with said sleeve being able to be displaced in its axial direction (z) by means of a screw-turning motion. A limit stop part (22) that can be brought into contact with the face side (26) of the sleeve (16) situated opposite the valve body is fixed on the free end of the coupling rod (14).

Abstract: A throttle valve in a gas conduit (3), such as for example an intake of an internal-combustion engine, is pivotable from an idling position into operating positions by means of a valve shaft (5), the valve shaft (5) carrying an actuator body formed by a magnetised rotor body (9) which, via an air gap (10), cooperates with pole shoes (15) of a stationary excitation section (11), which is electrically energisable by a pick-up, which pole shoes surround said rotor body externally, the excitation section (11) comprising a U-shaped stator whose limbs (12a, 12b) form the pole shoes (15), which cooperate with the permanent-magnet rotor body (9) at the air gap, in such a manner that the rotor body (9) is subjected to magnetic torques which tend to pull said rotor body into a well-defined rest position, in order to thereby return the throttle valve (4) in a direction opposite to the opening direction into a well-defined rest position in the non-energised condition.

Abstract: A valve assembly for a pneumatic machine including a valve body having a first end, a second end, a central bore extending through the ends and a plurality of flow ports formed in the body; a valve spool movable through the bore along an axis in response to the flow of gas through the valve, to selectively open and seal the ports; an main inlet valve for moving the valve spool a distance along the axis; and a manually actuated means for overriding the main inlet valve.

Abstract: A device used in an actuator for locking in place a spring module while under load, the device including a spring return cylinder carrying a spring under compression when under load, a spring guide, a pull rod linked to a piston in a power cylinder, and a connection linking the pull rod and the spring guide, the connection being disengageable when said spring is not under compression, but not so when under compression.

Abstract: A wastegate valve for use with turbocharged engines. The wastegate valve vents exhaust gasses upstream of the turbocharger high pressure turbine to reduce turbocharger speed and associated boost pressure. The wastegate valve includes a piston attached to a poppet valve and movable within a housing. The housing receives pressurized intake gasses at a side of the piston to actuate the popper valve between open and closed positions. A diaphragm is sealingly disposed between the piston and housing. The housing includes mechanical stop means to limit the piston travel, thereby reducing flexure of the diaphragm. Additionally, the diaphragm is disposed in the housing in such a way that the diaphragm flexes between reduced peak compressive and tensile stresses.

Abstract: A single-lever mixer valve for liquids, for example hot and cold tap water. The valve comprises a housing, which is provided with an inlet for each of said liquids and a common outlet. A lever is provided for controlling the amount and the temperature of the liquid flowing out through the outlet. The lever is connected to an actuator in the valve housing that cooperates with a valve member. The lever includes an adjustable spring loaded stop to provide a temporary increase of fluid flow when pressed against a stop surface. The actuator is provided with a built-in closing damper, including at least one sealed chamber and a movable piston for forcing an amount of fluid from the chamber via a throttling member when the lever is closed. When the fluid pressure in the chamber exceeds a certain value, the throttling member is elastically deformed and pressed progressively against a sealing face in the actuator for reduction of hydraulic shock waves related to rapid closing of the mixer valve.

Abstract: A hydraulic pilot valve consisting of a pair of pressure-reducing valves, wherein a stopper which can freely adjust maximum control inputs of operating levers (23, 24) of the hydraulic pilot valve is provided to make maximum pilot pressures output from the pair of pressure-reducing valves freely adjustable. Furthermore, in the hydraulic pilot valve, a stopper member for limiting a maximum control input of an operating lever is fixed to the operating levers (23, 24), so that an operating force during a maximum operation of an operating lever is received by the stopper member. Furthermore, in the hydraulic pilot valve, an erroneous operation due to vibrations and the like is prevented by a damper mechanism (50) interposed between a lever fixed to each of the operating levers (23, 24) and a main body (1) of the valve.