Abstract: A replacement apparatus (50) for converting a manual flush mechanism to automatic operation includes a partition base (76) secured to a replacement cap (68) that forms two spaced-apart openings (96 and 98). A valve operator (58) is so mounted on the replacement cap (68) as to form with the upper surface of the replacement cap (68) a chamber (100) with which both of the openings (96 and 98) communicate. The partition base (76) separates a pilot chamber (26) from a relief chamber (94) that the partition base (76) and replacement cap (68) form. A replacement pilot valve member (102) controlled by the valve operator (58) in turn controls flow through the passage that comprises the openings (96 and 98) and the common chamber (100) with which they communicate. It thereby controls flow between the pilot chamber (26) and the relief chamber (94). The partition base (76) includes a wall (86 ) that is flexible so as to permit a main valve diaphragm (24) to flex.

Abstract: A water saving valve is provided for attachment between a water supply pipe and a showerhead. The water saving valve has a spool fitted in a bore defined by first and second walls having first and second openings, respectively. The first and second walls separate the bore from a pipe passageway and a showerhead passageway, respectively. A circumferentially recessed groove is provided in a central portion of the spool, the recessed groove defined by a core which has a diameter approximately 80% of the diameter of the spool. The core has a valve passageway which, when the spool is fitted in the bore in a first portion, substantially horizontally aligns with the first and second openings to allow water to flow unrestricted therethrough. The spool may be rotated by a handle to different positions to regulate the quantity of water allowed to flow through the showerhead.

Abstract: An electro-magnetic on-off valve for controlling the opening area of a fluid line, in particular for fuel injection pumps, having a valve element constructed on a valve needle, said valve element cooperating with a valve seat. The valve needle is connected to a magnetic armature of an electromagnet, the magnetic armature moving in a fluid for the purpose of achieving high switching speeds, and being sealed with respect to the liquid-conducting region of the valve. For any purpose of extensive damping of the rebound oscillations which occur when the valve closes and lead to the re-opening of the valve, the connection between the magnetic armature and valve needle is produced by a coupling and which is designed in such a way that after the rebound of the valve element against the valve seat occurring when the valve closes, the magnetic armature and the valve needle oscillate in phase opposition with respect to one another.

Abstract: An improved valve stem for a valve assembly is provided wherein the valve stem has an external threaded area engaging an internal threaded area of a valve housing for the valve assembly. At least one channel is provided along the threaded area to allow fluid to flow through the threaded area for flushing the threaded area during the manufacturing process of the valve. The channel may be in the form of a flat area along an axial length of the threads, a groove along the length, or a combination of the two.

Abstract: An electrically operated refrigerant expansion valve has a refrigerant metering orifice extending therethrough. The valve includes a tapered opening extending thereinto, generally transverse to and intersecting the refrigerant metering orifice. A tapered valve member extends into the tapered opening to cooperate with the tapered opening to control the flow of refrigerant through the valve. The cooperation of the tapered valve member and the tapered opening is such that the flow through the valve body is completely shut off when the tapered valve member is fully inserted into the tapered opening. An electrically actuatable means is mounted on the valve for imparting axial movement to the tapered valve member into and out of the tapered opening.

Abstract: A seal arrangement for a metering valve wherein a cylindrical member has a groove located on a face adjacent a seat which surrounds an opening connected to an inlet port. An elastomeric member has a base which is located in the groove with a projection that extends past the face on the cylindrical member. A ring is resiliently held against the elastomeric member by a sleeve to form a first static seal between the cylindrical member, retaining ring and sleeve. A piston located in the sleeve has a flange with first and second ribs thereon separated by a recess. An input member positions the piston such that the first rib engages the projection and compresses the elastomeric member before the second rib engages the seat to form a static seal between the piston and cylindrical member to assure that fluid flow between an inlet port and an exit port terminates when the piston is in a closure position.

Abstract: A balanced valve system, employing either spool or ball valve members can be pulse width modulated using a solenoid actuator. The solenoid actuator is integrally assembled onto the valve and has a rod by which the solenoid armature imparts a valve operating force to the spool or ball valve member. The rod is press fit into the armature during assembly to establish the desired air gap spacing between armature and pole piece. Movement of the armature causes a corresponding movement in the rod which urges the valve member against compression spring forces to the open or unseated position.

Abstract: An electromagnetically operable fluid control valve includes a valve member slidable in a bore in a valve body. Resilient means biases the valve member to the open position and an actuator including an armature when energized moves the valve member to the closed position. Stop means formed by a part movable with the armature engages the valve body to limit the movement of the armature and valve member when the actuator is de-energized. Damping means formed by a liquid filled recess in the part acts to damp the aforesaid movement.

Abstract: A fuel valve for use in the fuel system of motorized recreational vehicle, such as a motorcycle, snowmobile, or the like. The improved fuel valve generally includes a valve body, main and reserve inlet tubes attached to the valve body, a valve assembly disposed within the valve body, and a plurality of gaskets adapted to seal the valve assembly within the valve body. The valve assembly is adapted to rotate through open, reserve and closed positions to provide various fuel settings.

Abstract: An electromagnetic diaphragm-type valve has a leakage preventing convex ring and is particularly applicable to air-aided fuel injection system. The valve includes an external housing made of a magnetic-inductive material, an electromagnetic coil set installed inside the rear part of external housing, a magnetic-inductive stator fitted to the central holding site of electromagnetic coil set, and a valve stem installed in the front part of external housing. The valve stem circumference is integrated with a deflectable rubber diaphragm so as not only to enable the valve stem to move a minor distance but also to enable the valve stem to be located in a right or left position. In addition, the diaphragm isolates an air chamber from parts defining the ranges of guidance and lift of valve stem, hence the motion of valve stem is not affected by entrance of pollutants. The diaphragm is formed to seal in compresed air in the air chamber.

Abstract: A control valve, which consists of a body (1) provided with flow-through channels (2, 3) and of a closing member (5) arranged rotatably in the body in an expansion (4) of the channel, the rotation shaft of which is eccentric in relation to the sealing surfaces of the closing member and the seal of the body. In an open position of the valve a circular flow is formed around the closing member between a wall of the body and the closing member (5), the main flow passage of which circular flow is located in a channel between the inner surface of the body and the upstream edge (16) of the closing member. The closing member (5) has an extension (17) in its upstream edge (16) in the open position, which extension in an initial phase of the opening reduces the cross-sectional area of the main flow passage.

Abstract: A low vibration, high cycle, high vacuum gate valve structure comprises a high vacuum housing defining a passageway, a valve actuator for providing a rectilinear displacement force, a translatable and pivotable gate valve assembly actuated by the valve actuator for translating from a fully retraction position outside of the passageway to an initial closure position adjacent to a fixed seal surface provided within the housing thereby blocking off the passageway. The gate valve assembly defines an angled sealing surface relative to an oppositely facing angled sealing surface of the fixed seal but displaced by a predetermined angular displacement at the initial closure position.

Abstract: Closing member (1) for a valve, which said closing member can be fitted turnably into a valve housing provided with a through flow duct (3,4). Several main ducts (5) placed side by side pass through the closing member, said main ducts jointly forming the flow opening in the closing member. At least some of the main ducts (5") in the closing member (1) are connected to one or several of the main ducts (5',5'") placed side by side by means of the side ducts (7) eccentric relative the main duct so that the central axes of the main and side ducts are in different planes placed at a distance from each other.

Abstract: An electromagnetically actuated, quick-action hydraulic switching valve has a pressure-balanced seating valve arrangement and an electromagnetic actuator means. The electromagnetic actuator means comprises a core and an armature for actuating the valve, the core and the armature defining a working air gap. The armature is part of the core and is in the form of a sleeve member mounted slidably on a guide pin which is pressed in position in the housing. The seating valve arrangement is formed by an annular edge defined by a central bore in the armature on the one hand and on the other hand, either a taper surface on the guide pin or a ball with a bore therethrough. Using the same armature, the valve can be designed to operate either as a valve which is open in the currentless condition or as a valve which is closed in the currentless condition.

Abstract: A trim design (40) comprises a housing (42) having a generally cylindrical passage (44) passing therethrough. Disposed between an inlet (50) and an outlet (48) is a stepped plug (52) having an axial length. Telescopically receiving the stepped plug (52) is a stepped first cage (56). A second cage (82) having apertures (84) therethrough is positioned between the outlet (48) and the first cage (56). The first cage (56) has axial channels (80) for the passage of fluid through the trim design (40). As the plug (52) is moved from a closed position to an opened position, fluid enters a tortuous path formed by the stepped plug (52), the first cage (56) and the axial channels (80) to produce a desired flow capacity change. Flow path decreases in tortuosity with increasing plug travel thereby increasing the flow capacity.

Abstract: An improved electrically actuated solenoid is used to regulate the function of a hydraulic flow control valve. The solenoid directs a control valve to generate a predetermined output pressure as a function of the solenoid input current. The working air gap surface area is increased by locating it at a greater circumferential radius than the pole piece to increase the air gap permeance, thereby increasing the output force obtainable from a solenoid of relatively small physical dimensions and low cost.

Abstract: A multiway valve having a handle which can be lightly rotated. The valve includes a valve casing (38) provided with an entrance port (64) and plural exit ports (66, 68, 44a). A valve member (40) or a cam shaft (168) which opens and closes the exit ports (66, 68, 44a) is rotatably inserted in the casing (38). One of the exit ports is formed in one end surface of the casing (38), while the others are formed in the outer surface of the casing. Balls (60, 62, 160B, 160C) capable of plugging up the exit ports in the outer surface are mounted in the valve casing (38). The valve member (40) has arms or cams for moving the balls. The exit port in the end surface is opened and closed by the valve member (40) or one ball (160C).

Abstract: In a solenoid valve, in particular for fuel-injection pumps, the end position of the valve needle (20) is detected when the valve seating (14) is fully opened by a position signalling device (46), which has a piezoelectric ceramic disk (47) arranged on the stroke-limit stop (28) for the valve needle (20). To transmit the valve-opening signal produced by the piezoelectric ceramic disk (47) when the valve needle (20) strikes the control element (40) of the solenoid valve, a double-conductor connecting cable (34), which is required for the excitation of the electromagnet (25) of the solenoid valve, is used.

Abstract: The moving coil actuator of a pressure regulator has two threaded adjustment screws each mounted parallel to the actuator's path and which project through a limit surface of a carrier for the moving oil actuator. Both adjusting screws can be rotated by means of a tool, but their mounting prevents them from being moved longitudinally. Each of the adjustment screws carries a limit element, one on each side of the carrier's limit surface. The position of each of the limit elements on its adjustment screw is adjustable by means of an internal thread. In the preferred embodiment, each adjustment screw is partly enveloped by a projection on the limit element carried by the other adjustment screw, by which each limit element is secured against rotation during adjustment. The limit elements independently limit the stroke of the moving coil at each end by blocking movement of the limit surface when the actuator reaches its desired limit.

Abstract: An orifice valve assembly which may be utilized to control the flow of a fluent material, such as powdered magnesium, propelled by gas under pressure, the valve controlling the flow in a linear manner.The valve includes a valve body having first and second adjacent concentric bores, the first bore being of a larger diameter than the second bore, and a cross-bore intersecting the first bore, the cross-bore having a cylindrical portion which intersects the first bore and frusto-conical inlet and outlet portions to either side of the cylindrical portion.