Abstract: In a high-vacuum valve whose valve body is brought in and out of contact with a valve seat, a metal diaphragm facing the valve seat defines a valve seat, an actuating mechanism to open and close the valve body is provided on the reverse side of the diaphragm outside the valve chamber, and a spring is provided between the actuating mechanism and diaphragm in a position corresponding to the position of the valve seat. This high-vacuum valve eliminates the stagnation of gas in its passage, reduces the surface area of its passage, and precludes the detrimental effect of the powder of abraded metal.

Abstract: This invention is directed to a connection between a magnet valve and a housing block. The housing block has a receiving bore, which as the bore depth increases changes the bore into an undercut. A valve body portion has a shape adapted to the undercut, leaving open a continuous encompassing gap of constant width with respect to the undercut. A housing jacket that fits over the coil of the magnet valve is press-fitted into the gap. The jacket is longitudinally slit to form tongues whose ends undergo deformation in the undercut. The form-fitting connection is usable for instance in the hydraulic unit of anti-lock vehicle brake systems.

Abstract: An normally closed-type fluid control valve, having a guide standing through a counter member on the side of an upper surface of a valve base is provided with a cylindrical member having an engaging portion at its lower end and movable up and down on an inner the side thereof. Cylindrical member is provided with an actuator therewithin so that the actuator may be held by the cylindrical member. A support member 051452225 is fixed in position by means of the counter member and the guide is inserted into a hole opened at a position below a lower end portion of the actuator.

Abstract: A solenoid control valve includes a solenoid housing which encloses a solenoid and an armature which is actuated by the solenoid in order to control the flow of fluid through the valve. Contact spring makes continuous electrical contact with the armature and the armature is electrically insulated from the valve except when the solenoid brings the armature into contact with a stop portion which is integrally formed in the body of the valve. Contact between the armature and the stop completes an electrical circuit between the sring contact, the armature and the valve body, thereby providing a precise electrical indication of the mechanical state of the valve without any degradation due to hysteresis or mechanical losses.

Abstract: A high pressure valve assembly has a bore with a seat intermediate its ends and an inlet on one side an outlet on the other side of the valve. A double headed piston within the bore has a closure head between the seat and the outlet and a control head on the other side of the inlet to the seat. The control head has a slightly greater projected surface area facing towards the seat than the closure head. There is a cage between the seat and the outlet, which defines an annular chamber about the bore between the seat and the outlet, the chamber opening into the outlet. The cage has a number of rings of apertures spaced from the seat which are successively opened as the closure head moves away from the seat. The closure head extends beyond the apertures and has a "U"-seal at its downstream end. The control head also has a "U"-seal. The seals face towards the seat. The bore is closed by end caps. The valve assembly is manually operable or by means of a control fluid.

Abstract: An absorber is position on the back or opposite side of a solenoid to receive the kinetic energy of the armature. The energization of the solenoid attracts the armature to the solenoid core and upon striking the core, the kinetic energy of the armature is transferred through the core and to the absorber. The absorber is launched into flight for the purposes of dissipating the kinetic energy and returns to rest on the core without effecting the movement of the armature. The absorber dissipates the kinetic energy by transferring it to a spring means and also may dissipate the energy by means of viscous damping or the flow of fluid from one side of the absorber to the opposite side.

Abstract: A multi-functional valve includes a body and a circular piston. The piston has at least one circular O-ring surrounding the piston body. There is also a side mounted O-ring with a central axis substantially perpendicular to the circular O-ring.

Abstract: A proportional flow control valve in which a valve seat is provided in the proportional flow control valve body, a valve piece is slidably mounted on a movable iron core, and is urged toward the valve seat by an elastic member disposed between the valve piece and the movable iron core, and a holder is fixedly mounted on the movable iron core so as to limit the movement of the valve piece toward the valve seat caused by the elastic member. The proportional flow control valve is high in reliability in which the leakage of fluid is substantially zeroed even when fully closed, and the difficulties are eliminated that, when its flow rate adjusting means engages with or disengages from the valve seat, hammering sounds are produced and the flow characteristic is adversely affected, and which is simple in adjustment and is maintained correct in flow characteristic at all times.

Abstract: A control device for a fuel injection nozzle of an internal combustion engine, particularly a diesel engine, provided with a movably guided valve body which forms a valve seat and is controlled by a driving unit and provided with an inner space and with a pressure chamber between an inlet and the valve seat whereby an injection pressure for the injection nozzle is built up in the pressure chamber when the valve seat is closed and pressure compensation is effected between the pressure chamber and an outlet when the valve seat is open characterized in that the valve seat is formed by the end of the valve body lying near the inlet, the pressure chamber communicates with the inner space of the valve body through the valve seat when this is open and the inner space communicates with the outlet.

Abstract: A feedback, motor-operated valve, including a valve casing having an inlet, an outlet and a valve seat operably positioned therebetween, and further including a valve element movably mounted in the casing to control flow between the inlet and the outlet, the valve element adapted for screw-like movement into and out of sealing engagement with the valve seat by a valve stem rotatably mounted in the valve casing and extending through the casing exterior thereof, a reversible motor for actuating the valve including a reversible drive motor having an output shaft and drive gear which can be driven together in both a clockwise and counterclockwise direction for turning the valve element, a driven shaft interposed the motor drive shaft and the valve stem and connected to the valve stem, including a driven gear for engagement with the drive gear to effect turning of the valve element from turning the motor drive shaft, an electro-mechanical feedback operably connected to the driven shaft for providing an electric si

Abstract: A control valve device for controlling flow rate, comprises: valve holder (31) linearly moved forward and backward by a driving unit (2), said valve holder serving as a converting mechanism for converting a rotary motion of driving means into a linear motion; valve piece (32) being supported by the front end of the valve holder while movable back and forth direction, and fitted into a valve seat (1b) when the valve holder advances toward the valve seat; and a spring (37) interposed between the valve piece and the valve holder for urging valve piece toward the valve seat.

Abstract: An externally adjustable restriction control assembly for a poppet valve. The restriction control assembly is actuated through rotation of the valve stem. Upon rotation of the valve stem, a restriction control disc, threadably mounted to the valve stem guide, is moved toward or away from a seat provided within the housing. Movement of the restriction control disc thereby adjusts the effective cross-sectional flow area through the valve.

Abstract: A changeover valve is disclosed; this valve has a valve case which has a water intake to be connected to a water supply device, a water outlet, a drain port, and two connecting ports to be connected to the two opposite ports on a water filter; a valve body which comprises an inner cylinder, an outer cylinder, an internal passage way defined between said inner and outer cylinders, an intake hole communicating the inner cylinder and the water intake of the valve case, a first passage way for connecting the inner cylinder to the space outside the outer cylinder, and a second passage way for connecting the internal passage way to the space outside said outer cylinder; and a control knob to rotate said valve body to "filtration", "rinsing" or "backwashing" position alternatively. Water from the water supply is filtered through the water filter and discharged through the water outlet of the valve case for service when at "filtration" position.

Abstract: With an electromagnetically operating setting device according to the principle of the spring-mass-oscillator, in particular to actuate control valves in displacement engines, the working stroke of the control element is varied by changing the position of the pole surface of a working magnet and the base of one or more springs of the spring system. To this end, a magnetic switching system serves to simultaneously change the distance of the pole surface and adapt the oscillation mid-point to the new position of the pole surface by changing the position of one or more spring bases. Furthermore, with this switching system the magnetic reluctances of one or both working magnets can also be changed.

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 diaphragm valve includes a single layer, metal diaphragm cooperating with a plastic valve seat. The surface area and volume of the valve seat is limited. Additionally, the central portion of the diaphragm is generally hemispherically offset and extends axially from a planar periphery. The actuating stroke of the valve is maintained less than the offset that is formed in the diaphragm. Lastly, the valve seat is secured in such a manner to insure repetitive long term shutoff under a variety of operating conditions and limit entrapment and outgassing of potential system contaminants.

Abstract: An improved solenoid valve wherein the improvement is an improved sleeve assembly. The sleeve assembly is a tubular section having an enlarged first end integrally formed with the remainder of the tubular section and having a second end. The enlarged end is formed with external threads which mate with threads of a cup-like recess in the body of the solenoid valve. The tubular section is a nonmagnetic material which is screwed into the cup-like recess of the body. The enlarged first end further has a gasket seat for compressing a gasket between the cup-like recess of the body and the sleeve member. A stop of magnetic material is welded to the second end of the tubular section forming a seal. A flux plate comprising a magnetic material is located about the sleeve assembly between an electrical coil and the body.

Abstract: A faucet with control mechanism for passing water through the faucet or for shutting the water off, which comprises ceramic discs having mating long-wearing highly polished faces that provide a water seal when the discs are in closed position, and have openings therein which provide a water passageway when the discs are in open position for axial flow, wherein the ceramic discs themselves form the passageway or pressure vessel which contains the flow and permits the use of a side-operated handle which attaches to a controller inside the faucet which is open to the atmosphere. A lower body portion has a threaded stem with a pair of opposed flat portions for admitting a split mounting washer without having to thread the washer on the threaded stem all the way from the bottom of the stem.

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: A metal-to-metal backseating system for fluid flow control valves, comprising a flexible annular backseat element extending radially from a valve stem or closure element to sealingly engage a valve bonnet surface, and an annular backup for the backseat element.