| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251129190 | Lost motion between valve and valve actuator | 17 |
| 20140239211 | OVERMOLDED OR PRESSED-IN SLEEVE FOR HYDRAULIC ROUTING OF SOLENOID - A valve having a metal insert with a fluid passage formed in the metal insert. A composite valve body is disposed at least partially around the metal insert and having at least one port in fluid communication with the fluid passage with the metal insert. A valve member is partially disposed in the metal insert and operable to control the fluid flow through the fluid passage of the metal insert and parts of the valve body. | 08-28-2014 |
| 20140306136 | VALVE FOR METERING FLUID - A valve for metering fluid under pressure includes: a valve housing having an inlet opening and a metering opening for the fluid; an outward-opening valve needle pressure equalized via an elastic hollow body which is subject to the fluid pressure; and an electromagnet which lifts the valve needle up from the metering opening against the force of a valve closing spring. The valve housing is assembled from a valve tube and one valve body on the metering end and another on the inlet end, each being connected in a fluid-tight manner to the valve tube at the tube ends. The magnet pot including the enclosed solenoid coil is secured on the valve tube on the outside by the electromagnet, and the magnetic core is secured on the valve tube on the inside in such a way that it surrounds a needle section of the valve needle. | 10-16-2014 |
| 20140312256 | FLOW REGULATOR - A flow regulator which is capable of suppressing hysteresis and includes a housing which includes a fluid inlet port, a fluid outlet port and a valve seat positioned in a communication channel, through which the fluid inlet port and the fluid outlet port are communicatively connected; a plunger guide cylinder coupled to the housing; a plunger provided at an end thereof with a valve body which moves toward and away from the valve seat, the plunger being inserted into the plunger guide cylinder to be freely movable in an axial direction; a spring which biases the plunger in a direction to bring the valve body into contact with the valve seat; and an electromagnetic device which moves the plunger in a valve opening direction against the spring. A clearance exists between an outer periphery of the plunger and an inner periphery of the plunger guide cylinder, the clearance being sufficient for the outer periphery of the plunger and the inner periphery of the plunger guide cylinder to be completely in noncontact with each other, to thereby make a sliding resistance therebetween zero in a state where axes of the plunger and the plunger guide cylinder are aligned. The valve body is formed as a ball, and one and the other of the valve body and the valve seat are made of a rigid body and an elastic material, respectively. The spring is a compression coil spring which is concentric with the plunger and is provided in an extended state between a fixed portion of the plunger guide cylinder and a movable portion on the plunger side. | 10-23-2014 |
| 20140374635 | GAS VALVE, AND ASSEMBLY METHOD FOR A GAS VALVE - A gas valve having a valve body that at least partially defines a gas enclosure. The valve body has an intake, an outlet and a hole for communicating the outlet with the intake. A valve seat within the gas enclosure cooperates with the hole to permit or to prevent the passage of gas through the hole. An electrically activated actuator, when activated, is configured to move or keep the valve seat in the open position. The gas valve includes connection means that connect the actuator to the outside of the gas valve, the connection means being disposed at least in part on a metal core printed circuit board. The printed circuit board is soldered to a metal structure located within the gas enclosure to at least partially seal the gas enclosure, the metal structure supporting, at least in part, the electrical actuator. | 12-25-2014 |
| 20150014563 | SYSTEM AND METHOD FOR MINIMIZATION OF FORCE VARIATION IN A SOLENOID WITHIN A PRESSURIZED FLOW SYSTEM - Exemplary embodiments are directed to systems and methods used to minimize force variation from a solenoid through an operating stroke. The systems and methods generate a near constant or substantially constant force solenoid assembly which can be used in a force driven device, such as, for example, a pressure regulator for accurately controlling pressure in a pressurized flow system. The systems and methods are based on an initial solenoid characterization and include an application of springs and placement of the solenoid within the system at a gap distance to minimize variation in force in the operating stroke of a commercially available solenoid. | 01-15-2015 |
| 20150028240 | Valve Assembly for a Control Valve and Control Valve - A valve assembly for a control valve includes a valve body having a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in further positions, and an electro-magnetic actuator unit configured to actuate the valve needle. The electro-magnetic actuator unit includes a pole piece fixedly arranged relative to the valve body, and an armature coupled to the valve needle and axially movable in the cavity. The electro-magnetic actuator unit includes a permanent magnet coupled to the valve body and arranged such that the permanent magnet exerts a force on the armature acting to contribute to move the valve needle into the closing position. | 01-29-2015 |
| 20150034850 | Method For Producing A Valve Body For An Electromechanically Operable Valve, A Valve Body, And An Electromechanically Operable Valve Comprising The Valve Body - A valve body for an electromechanically operable valve is produced by providing a base element with a circumferential sidewall having a first portion, a second portion, and a third portion, the sidewall being made of a ferromagnetic material and enclosing a cavity extending along a longitudinal axis. The third portion is positioned in longitudinal direction between the first portion and the second portion. A thickness of the third portion is smaller than a thickness of the first portion and the second portion. Hardening the third portion is achieved by laser heating, which transforms a material structure of the third portion into a martensitic structure. The locally decreased thickness creates a bottleneck for a magnetic flux, and a magnetic flux bypass in the valve body is reduced due to magnetic saturation; however, a structural resistance of the valve body remains high due to the laser induced hardening. | 02-05-2015 |
| 20150083948 | Valve - A valve includes a spring with a spring force, an actuator with an actuator force which can act against the spring force, a pin which can be actuated by the actuator, a sealing element which can be coupled with the pin, and a seal seat such that the valve is closed when the sealing element rests against the seal seat. The pin can be moved in the direction of the sealing element by means of the actuator, and the pin can be moved in the direction away from the sealing element by means of the spring. The sealing element can be moved into an open position independently of the pin, wherein a fluid flow through the valve is released in the open position. | 03-26-2015 |
| 20150083949 | Device for regulating the flow of a fluid - A device for regulating the flow of a fluid is provided with a valve housing having at least two valve connections, which are fluidically connected to one another via a valve chamber, at least one valve seat, which has a fluid connection to the valve chamber and one of the valve connections, a valve element, which has an actuating section located outside of the valve chamber and a closing body located within the valve chamber for the at least one valve seat. An electromagnet having a solenoid armature acts upon the actuating section. The solenoid armature is supported via two flat springs. | 03-26-2015 |
| 20150090913 | Valve for metering fluid - A valve for metering fluid is reported which has a valve housing having a valve opening and a valve seat, a valve needle, which is provided for the alternating closing and opening of the valve using a closing member cooperating with the valve seat, a resetting element that acts on the valve needle for closing the valve and an electromagnet that is able to have current applied to it, having a magnet armature that is drivable to a lift motion, which sits axially displaceably on the valve needle and carries along the valve needle in the lift direction for opening the valve via a driving flange situated on it. To simplify production and the assembly of the valve while achieving the advantages characteristic in valves having a prestroke spring and an armature free path, the magnet armature is supported on the valve housing using a diaphragm spring. | 04-02-2015 |
| 20150090914 | Solenoid Valve with Shaped Spring - A solenoid valve for controlling fluids includes a pole core, an armature which is connected to a closing element, and a spring element which is arranged in a working gap between the pole core and the armature. The spring element includes a shaped spring of substantially disk-shaped design. The shaped spring has a curvature with at least one flank region and one dome region, a tangent to the dome region being parallel to an end surface of the pole core. | 04-02-2015 |
| 20150097130 | FLUX BYPASS FOR SOLENOID ACTUATOR - An electromagnetic solenoid actuator comprises a ferromagnetic core and a ferromagnetic plunger. The ferromagnetic core supports a plurality of windings, and is oriented along an axis. The ferromagnetic plunger is aligned axially with the ferromagnetic core, and is translatable along the axis to vary a width of an air gap separating the ferromagnetic plunger from the ferromagnetic core. The ferromagnetic plunger and the ferromagnetic core overlap axially at a flux bypass that provides an alternative flux path that diverts increasing flux away from the air gap as the width of air gap decreases. | 04-09-2015 |
| 20150108382 | SOLENOID VALVE - A solenoid valve has a valve body with first and second ports. A bobbin is mounted to the valve body. A winding is wound on the bobbin. A stator is fitted to one end of a hole through the bobbin and defines a third port therein. A plunger is slidably fitted to the hole and movable between a normal position and an energized position. Two plugs are installed at respective ends of the plunger and arranged to selectively close the first and third ports. A flux return device is fixed to the stator and the bobbin. A spring returns the plunger from the energized position, where the plunger closes the third port and the first and second ports communicate with each other via the hole in the bobbin, to the normal position, where the plunger closes the first port and the second and third ports communicate with each. | 04-23-2015 |
| 20150129787 | RETAINER AND O-RING FOR VALVE SEALING - A system for positioning a seal member on a movable valve stem. The system includes an O-ring surrounding a lower portion of a movable valve stem. A snap-on retaining collar is pushed into place along the valve stem. A lower edge of the collar contacts the O-ring. The interaction between the snap-on collar and the O-ring prevents the O-ring from flexing outwardly and becoming dislodged from the valve stem. The snap-on retaining collar can be formed from various materials, such as but not limited to plastic. | 05-14-2015 |
| 20150137014 | SOLENOID VALVE - An electromagnetic valve includes a housing, a plunger, a spring, and a solenoid. The housing includes a cylindrical guide member configured to assist axial movement of the plunger, a seat member assembled to the guide member with a valve hole formed therein, a stationary core arranged so as to be opposed to an end portion of the guide member at a predetermined distance away therefrom in an axial direction, and a sleeve coupled, in a liquid-tight manner, to each of an outer circumference of an end portion of the stationary core and an outer circumference of the end portion of the guide member so as to integrally couple the stationary core and the guide member to each other. The plunger has formed therein a communication hole passing through the plunger in the axial direction so as to communicate to a passage (communicating to an inlet port and an outlet port) at one end and to a receiving portion of the spring at the other end, and a path for communicating the communication hole and a space portion formed on an inner side of the sleeve at a position between the end portion of the stationary core and the end portion of the guide member. Accordingly, when the working liquid is caused to flow from the inlet port toward the outlet port, the working liquid is caused to flow into the communication hole through the path, and thus air inside the electromagnetic valve can be discharged to the outside by the working liquid flowing from the passage out of the housing. | 05-21-2015 |
| 20150144820 | METHOD FOR SOLENOID MOTOR VENTING WITH CONTAMINATION PROTECTION VIA A HYDRAULIC SLEEVE - A solenoid valve is provided having a hydraulic body with an undulated expansion artery to prevent an exchange of fluid between an interior of the hydraulic body and the exterior of the solenoid valve. | 05-28-2015 |
| 20150144821 | REAR ELECTROMAGNET FOR VIBRATING PUMP AND VALVES - A rear electromagnet suitable for vibrating pumps and electrical valves. The rear electromagnet for vibrating pump and electrical valves, which is the subject of this invention, has features intended to increase the efficiency of the magnetic system due the particular position of the electromagnet in order to exert a direct attractive force over the ferritic core and to obtain the same performances with less copper, iron and consume less electricity. | 05-28-2015 |
