Abstract: An electromagnetic valve assembly having a valve unit with a valve seat and a coil arrangement. An armature is slidably disposed in the bore of the coil arrangement. A yoke unit surrounding the coil arrangement is in two parts having cooperating longitudinally extending edges forming two axially extending air gaps on diametrically opposite sides of the yoke unit. End flange portions of the two parts of the yoke unit are cut to form articulated tabs which facilitate the forming of the flange end portions.

Abstract: A tap assembly includes a body with a chamber having an inlet and an outlet, and a seat therebetween. A clapper is disposed for movement relative to the seat between a first position engaged upon the seat for resisting flow of fluid toward the outlet, and a second position of for permitting flow. The tap assembly also includes a reciprocal positioning assembly with a rod mounted for axial movement between a first position for allowing the clapper to engage upon the seat and a second position for precluding the clapper from engaging upon the seat; a cylindrical housing; and an elastically deformable elongated element which forms a split ring positioning unit for the rod. The positioning unit has an inner ring and an outer ring.

Abstract: An air control valve for directing air flow in a double-acting reciprocable motor, where the valve has a first link which is pivotally connected at one end to the motor and mechanically coupled along its length to a reciprocable motor member; a second link pivotally connected to the same point as the first link, and having an over-center spring detent mechanism to position it in either of two pivot positions; both of the links having alignable transverse slots, with a compression coil spring engaged in both slots; and a slide valve member attached to the second link and pivotally movable therewith, to direct the air flow into either of the double-acting motor drive members, the air valve toggling to its second position near the end of the motor drive stroke to cause the motor to reciprocate in the other direction.

Abstract: A faucet diverter valve is disclosed having three positions for delivering a stream or spray of untreated water, or a flow of treated water. The position of the faucet diverter valve is selected by means of a single rotating handle. Rotation of the handle causes a valve spool to move axially within a manifold to bring fluid flow openings in the valve spool in and out of alignment with openings in the manifold. The valve spool carries seals which direct the flow of untreated water through a straight stream outlet, a spray outlet, or to a treatment loop in which untreated water passes through a treatment device, returns to the faucet diverter valve, and exits through a treated water outlet. The treatment loop return is sealed against dripping and the introduction of air by the valve spool.

Abstract: The space necessary for the installation of gas feed valves for domestic applications and the like of the type wherein gas feed valves take gas from a main gas feed duct and deliver it to gas using units is minimized by arranging the valves within the main gas feed duct, and by providing valves which include a valve body having at least one gas admission orifice opening directly within the gas space of the duct and a gas discharge, section opening outside of the duct. The valve body is fixedly arranged within the gas space of the duct by a suitable clamping arrangement, the valve body having a valve member concentrically arranged within the same for closing and opening the admission orifice and the discharge section.

Abstract: A high-performance valve for the application in dot or line form of hot or cold fluid product is electromagnetically actuable and comprises a statonary piston member and a movable valve piston which bears against a valve scat to close the valve opening under the force of a biasing spring supported against the stationary piston member. The product is first fed into an annular chamber around a portion of the piston member and then flows through flow openings formed by recesses in the piston member. The recesses are arranged eccentrically and open to the outside periphery of the piston member and extend as far as the end thereof which is towards the valve piston. The valve piston is in the form of a sleeve member with a bottom portion which is towards the valve seat.

Abstract: A solenoid valve, particularly a built-in valve, having a valve housing which is provided on the end surface facing away from the installation side with means for the connection of electric lines which are outside the valve housing. The valve housing (6) is further provided with at least one electrically conductive contact track (3, 3') of the shape of a circular disc which is insulated from the valve housing and is electrically connected within the housing with the magnet (4), and a cup-shaped cover (2) can be placed over the end of the valve housing (1) having a contact track (3, 3'), the cover being provided on its inside on the bottom with at least one contacting element (5, 5') which engages under spring action with the corresponding contact track, the contacting element being electrically connected to electric lines (16) which are external to the housing.

Abstract: A device, in particular for controlling a throttle cross-section in an operating fluid carrying line of an internal combustion engine, has a housing provided with a bore and a throttle aperture, an inlet connecting piece associated with the housing, a rotary valve acting as a throttling organ and being centrally arranged so as to be rotatable in the housing and closing the throttle aperture to a greater or a lesser extent, so that a fluid to be controlled passes through the inlet connection piece directly via the throttle opening. The rotary valve has a shaft with an axis, and also has a control edge and a rear edge which is opposite to the control edge. The control edge and the rear edge both extend obliquely relative to the axis of the shaft of the rotary valve.

Abstract: A control valve for a particulate material blender which permits either blending or bypassing with pressurized gas or discharging the material without pressurized gas, but prevents undesirable interconnections. A cylindrical body with four access ports spaced around the body has a rotor with connecting passages within the body. In one embodiment, the rotor interconnects either the gas entry port to the blender port alone, the gas entry port to the blender and bypass ports, or the blender port to the discharge port as it rotates into one of its three positions. A suitable rotation means, for example, two rotary actuators, are used to secure the three positions of the valve, while preventing any other rotational positions.

Abstract: A flow rate control valve device for controlling and then supplying fluid under pressure to an actuator such as an hydraulic cylinder or the like which includes a valve body having a drain port kept at a low pressure and a main spool slidably mounted in the valve body to connect or disconnect the drain port with a pressure chamber. Notch grooves are formed on an outer peripheral surface of the main spool. A spring is interposed between the valve body and the main spool to urge the spool to a valve body seat. A pushing device is provided for pushing the main spool against the resilient force of the spring.

Abstract: A piezoelectric pressure control valve (10) comprising a bimorph (48) with a characteristic that as a potential difference is applied thereto, one surface expands and the other contracts, thereby deflecting the bimorph. The valve includes a supply port (14) for introducing fluid and a chamber (16) defined within the valve body. An outlet port (18) is in communication with the chamber. A top valve plate (22) and a contiguous bottom valve plate (24) are supported within the chamber, each valve plate having an anchored end (26, 28) affixed to a wall of the chamber, the anchored end of the top valve plate being provided with an inlet channel (30) in communication with the supply port, and a metering orifice (40, 42) disposed within each valve plate. A double poppet valve head (44) is seatable within the associated metering orifice, the poppet valve head being continuously displaceable between an open position and a normally closed position.

Abstract: Electromagnetically actuated valve, comprising an actuating device, a movable plunger and a valve chamber with an opening for the medium passing through it, which opening may be closed by the plunger. In order to ensure safe functioning of the valve at small closing forces, the valve chamber is totally sealed against the actuating device and the movable plunger by means of a flexible diaphragm, the diaphragm being fitted into the housing along its circumference and being pressed against the edge of the opening by the movable plunger.

Abstract: An electromagnetic valve assembly having a valve unit with a valve seat and a coil arrangement. An armature is slidably disposed in the bore of the coil arrangement and has one end cooperable with a core head to form an air gap and at the other end a closure device cooperable with the valve seat. The closure device has a ring shaped mounting part attached to the armature and a closure element in the form of a radially inwardly extending tongue-like part which is resiliently connected to the mounting part and is cooperable with the valve seat to maximize the operating effects of the coil arrangement.

Abstract: An engine emission control metering valve includes a metering ball valve element operatively connected to an electrically-energized linear actuator that includes a stationary magnet and a moving coil concentric with the magnet. The coil has a different axial length than the magnet such that application of a current to the coil causes coil-generated magnetic flux to axially push the coil away from the magnet. Coil movement translates into movement of the metering valve element through the wedging action of a cam element driven by the coil movement.

Abstract: A valve seat arrangement sealing against a valve core in a valve, particularly for a ball valve, having an inner ring with a first deflectable sealing lip and an outer ring with a second deflectable sealing lip. The first deflectable lip is arranged to protrude forwardly to make initial contact with a closing valve core and once deflected, the second lip is arranged to land against said closing valve core forming a secondary seal. The first sealing lip and the second sealing lip are fashioned having selectively angled beveled surfaces facing the core. The invention provides an effective sealing arrangement for high temperature service.

Abstract: A multiport selector valve incorporates a polished interface between a respective poppet of each port and a displaceable valve spool. A controlled gap exists between each poppet and its respective port fitting to pressurize a recess in which an O-ring is seated during operation of the valve. This results in the O-ring seal being urged against a confronting surface of the poppet which increases the contact force between optical surfaces of the poppet and the spool, particularly during periods of dynamic flow. The construction of the valve results in a unit of high reliability and useful life with attendant reduction of replacement costs.

Abstract: A valve provided with sound-reducing means, which sound-reducing means comprise a porous member.

Abstract: A valve for metering a fluid including a small upper plate, a small middle plate and a small lower plate. The small middle plate has a closing element with a diaphragm region surrounding the closing element. The stroke of the closing element is limited in an axial direction by the small upper plate and by a valve seat of the small lower plate. As a result, very accurate metering of the fluid is possible. The valve is especially suitable as an injection valve for injection systems of mixture-compressing internal combustion engines with externally supplied ignition.

Abstract: A radiant heating system for a greenhouse utilizing radiator tubing formed from substantially gas impermeable plastic material. The system includes a radiator tube disposed overhead and formed from light transmitting material so that sunlight projecting into the greenhouse will be substantially transmitted to the plants grown thereunder and a second radiator tube disposed proximate the greenhouse floor and formed of similar plastic material. The radiated tubes are interconnected at one of their ends and a burner communicates through a manifold connected to the other ends of the radiator tubes to transmit a heated effluent through the tubes. Valve means and exhaust means are associated with the manifold.

Abstract: A magnetic valve has a valve member cooperating with at least one valve opening for closing and releasing the latter, an actuating element provided for the valve member and displaceable between two end positions for the closing and releasing of the valve opening, a permanent magnet arranged in the actuating magnet and magnetizable in direction of displacement of the actuating element for holding the actuating element in the end positions, an electromagnet for producing a magnetic force displacing the actuating element between the positions. The electromagnet has a magnetic core with a yoke and three parallel legs connected by the yoke. The legs include outer legs magnetically connected with end abutments and a central leg extending to the actuating element, and an operating winding is arranged on the central leg, a bending spring has a free end, the actuating element is mounted on the bending spring, and the free end of the bending spring supports the valve member.