Abstract: A cartridge valve (22, 94) and system (10) are provided in which the cartridge valve (22, 94) includes a regulator (44, 96) and an adjustable stroke solenoid (42, 100) to facilitate stable flow control. Also, the cartridge valve (22, 94) includes a quick and easy installation and removal fitting (30 and 32).

Abstract: The present invention relates to a method and system for determining the position of the armature of a solenoid using a controller to determine the temperature of the solenoid and to indirectly determine the position of the armature without the need of an additional sensor using current sensing pulses and a solenoid capable of staying engaged due to residual magnetism after the coil has been de-energized.

Abstract: A control valve capable of reducing vibration of a housing member, and a variable-displacement compressor provided with this control valve, are provided. A control valve 300 includes: a valve unit 310 having a valve body 304 and a movable iron core 308; a housing member 312 which is formed into a bottomed tubular shape and slidably houses the movable iron core 308; and a coil unit 313 having a drive coil portion 313A housed in a solenoid housing 311 to be disposed around the housing member 312, and an end portion member 313B formed to cover a tube bottom side end portion 312e. The control valve drives and controls the valve unit 310 by an electromagnetic force thereby adjusting an opening degree of the valve body 304. A first damping member 314 is disposed between a bottom wall 312b of the housing member 312 and the end portion member 313B.

Abstract: 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.

Abstract: A solenoid valve, particularly for a hydraulic braking system of a motor vehicle, includes a valve sleeve in which a pole core is fixed and an armature is disposed in an axially displaceable manner. The armature includes at least one longitudinal groove in the outer shell surface thereof. A spring washer is configured to be braced between the armature and the pole core. The end face of the armature facing the pole core is configured to be at least substantially convex, and the end face of the pole core facing the armature is configured to be at least substantially concave. A braking system includes the solenoid valve.

Abstract: Systems, methods, and devices are disclosed, including a compressor having a piston and a valve assembly. In some embodiments, the valve assembly includes a check valve having a valve member, a magnet coupled to the valve member, and an electrical conductor near the magnet. The check valve may be configured to change state in response to a change in fluid pressure. The compressor may also have an electric device coupled to the electrical conductor.

Abstract: The invention provides a switching valve having a valve element which is movable in a housing, an actuating apparatus acting on the valve element in a first direction and a spring apparatus charging the valve element in a second direction. According to the invention, the first and second directions are in opposition and the spring apparatus has a progressive spring characteristic.

Abstract: A spool valve includes a housing having a spring-enclosing portion and a spool-enclosing portion aligned along a longitudinal axis. A spool is mounted for reciprocal axial movement in the housing and a piston is fixed to one end of the spool. The spool-enclosing portion supports a stationary bushing having a bore receiving an opposite control end of the spool, the bushing formed with a first plurality of radially-oriented passages opening into an annular groove formed in the bore, the groove having sloped side edges. The spool supports plural ring-seals arranged to engage the sloped side edges of the annular groove and thereby seal off the radially-oriented passages when the spool is in a neutral position. Movement of the spool is adjustably limited in one direction and dampened in both axial directions.

Abstract: A linear actuator for a variable-geometry member of a turbocharger includes a piston/rod assembly that can axially translate and also pivot to a limited extent. A permanent magnet is mounted in a fixed position within the actuator. A non-magnetized flux carrier is mounted in the piston/rod assembly, and its movement alters the magnetic field of the magnet. A Halls effects sensor detects the magnetic field and the signals produced by the sensor are used for determining axial position of the piston/rod assembly.

Abstract: In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.

Abstract: A microfluidic valve system is disclosed that includes a matrix, a hydrophilic acceptor region a hydrophilic transfer region, and a hydrophobic gap between the acceptor region and the transfer region.

Abstract: The invention refers to a solenoid which comprises at least one armature supported in an armature space. The armature space is encircled by a coil carrying a number of windings which can be loaded with current. The magnetic field generated when loaded with current moves the armature against the pole core. In the armature a rebounding tappet is supported moving. Its tappet front facing the pole core projects, when not electrified, over the front of the armature.

Abstract: A stator is located in a coil. A movable body is attracted toward the stator when the stator is magnetized by the coil. A valve element is movable integrally with the movable body to open and close a fluid passage when the coil is activated and de-activated. A regulating member is opposed to the movable body to regulate movement of the movable body. An elastic member is equipped to one of the regulating member and the movable body and is elastically deformable between the movable body and the regulating member when the movable body is attracted toward the stator. The elastic member is located at a position shifted in a radial direction relative to the regulating member or the movable body. The elastic member is in an asymmetrical shape relative to an axial rotational direction.

Abstract: 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.

Abstract: A noiseproof vent valve for a fuel tank is provided. A damping member installed in the vent valve has at least two elastic pieces, preferably the four elastic pieces. The movement of the float is absorbed by elastic deformation of the elastic pieces, and thus the float is prevented from coming into contact with a lower end forming the bottom of a valve body. However excessively the float fluctuates, no “clicking” contact noise occurs at the vent valve. As a result, the merchantability of a hybrid vehicle sensitive to low noise can be greatly increased.

Abstract: A check valve is provided and includes a body including a seat, a hinge bifurcating the seat to define openings and a housing coupled to the hinge and a self-trapping insert of compliant material. The self-trapping insert includes an end portion and is securable in the housing such that the end portion protrudes from a side of the housing to contact with a corresponding check valve flapper in a respective open position.

Abstract: A device for controlling the flow of a liquid or gaseous medium, has at least one flow opening for the medium, and a movable valve element for controlling the flow opening. At least one damping body, which is preferably viscoelastic and acts on the valve element, is provided for obtaining a large dynamic range of the device in order to control flow in a fine, precise, and oscillation-free manner across a broad range of flow volume.

Abstract: The present invention provides for a solenoid valve assembly including a housing (32) defining a cavity (34). A support (48) is disposed in the cavity and defines a bore (50). A coil (60) is disposed about the support and defines an energized state for generating a magnetic field and a de-energized state. A plunger (74) is movably disposed in the bore of the support between a first position engaging the housing and a second position spaced from the housing. The plunger is radially spaced from the support to define a gap (76) between the plunger and the support. A dampener (86) is coupled to one of the support and the plunger adjacent the gap to prevent direct engagement between the support and the plunger as the plunger moves between the first and second positions during the energized and de-energized states for reducing noise during operation.

Abstract: In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.

Abstract: A throttle valve device ideal for small, inexpensive implements is provided. The throttle valve device having a damping member for slowly closing a throttle valve. The throttle valve device (1) has a throttle valve (4) that is fixed to a throttle shaft (5) pivotably supported in an air intake passage (2) and that is urged towards the closed direction, the throttle valve (4) adapted for adjusting the amount of air passing through the air intake passage (2). A through-bore (31) penetrating a shaft bore of the throttle shaft (5) is formed in a body, and a damping member (8) having frictional capabilities is inserted into and supported in the through-bore (31) in a state of pressing against the throttle shaft (5) inserted through the shaft bore (51).

Abstract: A valve assembly includes a valve body with an inlet, an outlet, and a chamber extending between the inlet and the outlet and an actuation sub-assembly. Positioned in the chamber is a flow restrictor, which is positionable between a valve open position wherein the fluid communication between the inlet and outlet is open and a valve closed position wherein the fluid communication between the inlet and the outlet is closed. A slow-close actuation sub-assembly includes a stem for engaging the flow restrictor, and includes a handle and plurality of annular members disposed around a shaft for resisting rotation of the shaft via the handle.

Abstract: A tunable valve assembly reduces valve-generated vibration. One embodiment comprises a valve body and valve seat having substantially collinear longitudinal axes. A rebound characteristic frequency is associated with rebound of the elastic valve body base plate from forceful contact with the valve seat. A central cavity in the valve body encloses a spring-mass damper optionally immersed in a dilatant liquid and having a damper resonant frequency approximating a pump housing resonance. A lateral support assembly adjustably secured to the valve seat has a support resonant frequency designed in conjunction with the rebound characteristic frequency and the damper resonant frequency. Combined hysteresis heat loss associated with the above three vibration frequencies is reflected in lower closing energy impulse amplitude and damping of associated vibrations.

Abstract: A valve comprises a magnetic drive and a core which is arranged therein to be movable in an axial direction, and which serve to open and close a valve seat. At least two flat springs stacked upon each other are arranged on an axial end of the core.

Abstract: A spool valve includes a housing having a spring-enclosing portion and a spool-enclosing portion aligned along a longitudinal axis. A spool is mounted for reciprocal axial movement in the housing and a piston is fixed to one end of the spool. The spool-enclosing portion supports a stationary bushing having a bore receiving an opposite control end of the spool, the bushing formed with a first plurality of radially-oriented passages opening into an annular groove formed in the bore, the groove having sloped side edges. The spool supports plural ring-seals arranged to engage the sloped side edges of the annular groove and thereby seal off the radially-oriented passages when the spool is in a neutral position. Movement of the spool is adjustably limited in one direction and dampened in both axial directions.

Abstract: The disclosure relates to a solenoid valve (1) having a solenoid armature (2) which is operatively connected to a sealing element (5) of the solenoid valve (1) in order to move the same, and an armature opposing piece (16) which engages, at least in certain areas, in a receptacle opening (23) in the solenoid armature (2). There is provision here for the armature opposing piece (16) to be composed of a pole core (19) and an intermediate component (20) which is supported on the pole core (19), wherein only the intermediate component (20) is arranged at least in certain areas in the receptacle opening (23), and at least one venting opening (33, 36), which produces a fluid connection between the receptacle opening (23) and the surroundings of the solenoid armature, is formed in the intermediate component (20). The disclosure also relates to a driver assistance device.

Abstract: The current invention relates generally to valves and actuators. This invention further relates to valves where the phenomenon known as “slamming” is completely mitigated and/or eliminated through self-damped valve assemblies. Additionally, this invention relates to valves having an actuator assembly capable of self-damping. Further, this invention also relates to valves that are capable of being externally adjusted without disassembling or removing any of the valve structure.

Abstract: A tunable valve assembly comprises a valve body, an adjustable preload flange centrally coupled to the valve body, and a viscoelastic element; the assembly attenuates valve-generated vibration transmitted to a pump housing. The vibration spectrum is narrowed and its amplitude reduced through hysteresis loss of closing impulse energy. The viscoelastic element comprises a peripheral groove portion coupled to a central reservoir portion via a plurality of fenestration portions. At least a first predetermined assembly resonant frequency is achieved by changing valve assembly compliance (with associated hysteresis loss) through adjustment of annular shear preload applied by the flange to the viscoelastic element reservoir portion. Such preload adjustment effectively maximizes hysteresis loss at the resonant frequency. At least a second predetermined assembly resonant frequency is achieved through choice of a circumferential shear-thickening material within the viscoelastic element groove portion.

Abstract: Tunable valve assemblies attenuate valve-generated vibration at one or more predetermined assembly resonant frequencies which are typically altered to correspond to specific pump housing resonant frequencies. Each tunable valve assembly comprises a valve body having a peripheral groove spaced radially apart from a central reservoir. An adjustable flange may be coupled to the valve body for imposing a predetermined shear preload by partially constraining a viscoelastic element in the reservoir. One or more valve assembly resonant frequencies are thus predictably altered. Further, the associated valve-generated vibration spectrum is narrowed, and its amplitude is reduced through hysteresis loss of closing impulse energy at each predetermined assembly resonant frequency. Assembly resonant frequencies are additionally or alternatively altered through choice of viscoelastic elements and inclusions (e.g., shear-thickening materials) in the reservoir and/or peripheral groove.

Abstract: A butterfly valve includes a duct defining a flow pathway and a valve disc rotably disposed in the flow pathway. A pneumatic actuator includes an intermediate chamber housing an actuator piston and is operably connected to the valve disc to drive rotation of the valve disc. A downstream bleed conduit extends from the flow pathway downstream of the valve disc to the intermediate chamber to pressurize the intermediate chamber thereby reducing a rate of movement of the valve disc in the flow pathway.

Abstract: An impulse tolerant valve assembly comprises a valve body having a longitudinal axis and a central internal cavity, the cavity enclosing a nonlinear spring-mass damper optionally immersed in a dilatant liquid. The central internal cavity is enclosed by a proximal valve body portion and a distal elastic valve body base plate, the base plate having a peripheral valve seat interface. Impulse tolerance results in part from hysteresis heat loss due to compliance of the elastic valve body base plate, as well as from heat loss associated with operation of the nonlinear spring-mass damper. The combined heat loss is reflected in reduction of closing energy impulse amplitude and damping of induced valve body vibrations. Compliance of the elastic valve body base plate increases closing energy impulse duration and narrows the corresponding induced vibration spectrum. The valve body has at least one guide and at least one peripheral seal-retention groove.

Abstract: The invention relates to a solenoid valve, in particular for a brake system of a motor vehicle, having an axially displaceably supported armature, on one end of which a valve sealing body is disposed and with the other end of which a pole core is associated, and having a compression spring acting in prestressed fashion between the pole core and the armature. It is provided that the compression spring is held in prestressed fashion in an axial passage of the armature, between a bolt, having the valve sealing body and held in a selectable position in the axial passage in force- and/or form-locking fashion, and a thrust piece, disposed such that it can be pushed out of the axial passage up to a stop and subjects the pole core to the prestressing force. The invention further relates to an armature for a solenoid valve. Finally, the invention relates to a method for producing an armature for a solenoid valve.

Abstract: An actuating solenoid and a non-stick disk by means of which adhesion of an armature of an actuating solenoid to a pole core can be prevented. The non-stick disk is provided with at least one oil channel through which oil can be fed into the contact area between the non-stick disk and the armature or the pole core.

Abstract: A shock absorbing interposer is positionable between a manually manipulatable handle and a faucet of a beverage dispenser for dispensing a beverage. The interposer includes a faucet adapter mechanism for interconnecting to a lever of the faucet and a handle adapter mechanism for interconnecting to the handle. A shock absorbing member is operatively connected to the faucet adapter mechanism and the handle adapter mechanism to dissipate excessive forces applied to the handle as the handle is moved between a first operative position and a second operative position in order to reduce the likelihood that such excessive forces will be exerted on the faucet and handle. A faucet assembly including a faucet, handle and shock absorbing interposer is also provided.

Abstract: A valve is provided including a first valve member and a second valve member. The first valve member includes a first step and a first orifice adjacent the first step. The second valve member includes a second step and a second orifice adjacent the second step. The second valve member is movable relative to the first valve member between an open position, in which the first orifice is fluidly connected the second orifice, and a closed position, in which the first orifice is substantially fluidly disconnected from the second orifice. The first and second steps are fluidly connected to the second orifice and substantially fluidly disconnected from the first orifice when the second valve member is in the closed position, and the first and second steps are fluidly connected to the first and second orifices when the second valve member is in the open position.

Abstract: There is provided a fluid controller having an enhanced vibration preventing characteristic without affecting pressure controlling operations. A valve element 4 is moved with respect to a valve seat 3 due to a change of balance between a fluid pressure acting on a diaphragm 10 and an elastic force of a pressure-setting spring 13, thereby controlling a pressure of a fluid. A vibration prevention member 17 is placed in a disk-shaped movable member 12 which moves integrally with the diaphragm 10. The vibration prevention member 17 includes a casing which incorporates therein a weight member interposed between elastic members.

Abstract: The seal (10) for a spray gun (20) is tubular in form and molded from an elastomer. The seal is placed in compression between two generally parallel surfaces (12) so as to seal out the fluid (such as paint) from the rod (14). As the trigger (16) is pulled and the rod (14) moved rearward, the seal (10) bulges to accommodate the travel without exposing the rod (14) to the fluid.

Abstract: An automatic flush actuation apparatus, which is incorporated with a flushing system having a water inlet, a water outlet, and a water chamber communicating therebetween, that includes a valve member being moved by a flush lever for releasing the water pressure within the water chamber to allow the water passing from the water inlet to the water outlet, and a sensor-operated powering assembly including a relief valve provided at the valve member for controlling the water flowing to the water outlet and an actuator arranged in such a manner that while sensing a presence of a user of the flushing system, the actuator is driven to move the relief valve to an opened position for releasing the water pressure within the water chamber to allow the water passing to said water outlet.

Abstract: The invention provides a switching valve having a valve element which is movable in a housing, an actuating apparatus acting on the valve element in a first direction and a spring apparatus charging the valve element in a second direction. According to the invention, the first and second directions are in opposition and the spring apparatus has a progressive spring characteristic.

Abstract: Electromagnetic fuel injector for gaseous fuels comprising: an injection nozzle controlled by an injection valve; a movable shutter to regulate the flow of fuel through the injection valve; an electromagnetic actuator, which is suitable to move the shutter between a closed position and an open position of the injection valve and comprises a fixed magnetic pole, a coil suitable to induce a magnetic flux in the magnetic pole, and a movable anchor suitable to be magnetically attracted by the magnetic pole; an absorption element, which is made of an amagnetic elastic material and is arranged between the magnetic pole and the anchor; and a protective element, which is made of a magnetic metal material having high surface hardness and is interposed between the absorption element and the anchor.

Abstract: A throttle valve device ideal for small, inexpensive implements is provided. The throttle valve device having a damping member for slowly closing a throttle valve. The throttle valve device (1) has a throttle valve (4) that is fixed to a throttle shaft (5) pivotably supported in an air intake passage (2) and that is urged towards the closed direction, the throttle valve (4) adapted for adjusting the amount of air passing through the air intake passage (2). A through-bore (31) penetrating a shaft bore of the throttle shaft (5) is formed in a body, and a damping member (8) having frictional capabilities is inserted into and supported in the through-bore (31) in a state of pressing against the throttle shaft (5) inserted through the shaft bore (51).

Abstract: An apparatus for controlling flow of a fluid includes a closure member, a biasing member applying a biasing force to the closure member, and a sealing member receiving the closure member. A dampener is operatively connected to the closure member and may resist a force applied to the closure member. A fluid seal may be formed when the biasing member presses the closure member against the sealing member. The apparatus may include a wellbore tubular in which the fluid conduit is formed and the closure member and sealing member may cooperate to control fluid flow along the fluid conduit. The apparatus may include an actuator configured to control the force applied to the closure member. The actuator may adjust the biasing force, and/or the dampening force. Also, a controller may control the actuator and may be responsive to a signal generated at a surface location, a signal generated at a downhole location, and/or a signal generated by a sensor.

Abstract: An apparatus for facilitating the removal of moisture from a compressed air tank has a tank with an interior volume, a tubular member positioned in communication with the tank and having an end adjacent the bottom of the tank, an air compressor interconnected to the tubular member for passing compressed air into the interior volume of the tank, a check valve positioned at an opposite end of the tubular member, a head pressure relief valve in communication with the tubular member, and a pressure switch cooperatively connected to the air compressor. The pressure switch opens the head pressure relief valve when an air pressure in the tank reaches a desired level so as to cause air and water in the tank to pass through the tubular member. The check valve serves to stop the passing of air and water after a period of time.

Abstract: A rotary valve plate adapted for housing within a conduit employs a vibration absorbing bumper pad coupled to the valve plate at a surface thereof adapted to contact an inner surface of the conduit whenever the valve plate is rotated to a closed position. The bumper pad minimizes vibratory noise and improves the durability of the valve plate over extended periods of operation.

Abstract: A check valve (10) includes a valve housing (14) having at least one valve opening (16). At least one petal (12) is located in the valve housing (14) and is configured to substantially cover the at least one valve opening (16) when the at least one petal (12) is in a closed position. The at least one petal (12) is rotable about a hinge axis (22) toward an open position thereby allowing fluid to flow through the at least one valve opening (16). The check valve (10) includes at least one compliant petal stop (24), (36) to prevent rotation of the at least one petal (12) beyond the open position.

Abstract: A bushing for positioning between a first component and a second component is disclosed. The bushing comprises a conical body that includes a first edge, a second edge, and at least one slot extending from the first edge toward the second edge. The slot or slots facilitate the flexing of the conical body. Methods for making a conical bushing are also disclosed.

Abstract: A multistage exhaust turbocharger is easily mountable in a narrow engine compartment of a vehicle by simplifying its construction and reducing its bulk. The multistage exhaust turbocharger has a high-pressure stage turbocharger and a low-pressure stage turbocharger. A cover of the high-pressure stage turbocharger has a compressor inlet passage, a bypass inlet passage, a switching aperture between the passages to be opened and closed by a valve body of the compressor bypass valve device, and a bypass outlet pipe part connecting to the bypass inlet passage to introduce bypass air passed through the aperture opened by the bypass valve to the compressor bypass channel which is to be connected to the bypass outlet pipe part.

Abstract: A damped spring assembly includes a helical spring. The helical spring is movable along an axis and has a winding direction. A damper is movable along the axis and includes a helical shape. The damper is wound in a direction opposite the winding direction. The damper applies a radial load to the spring for damping movement of the spring along the axis as the spring vibrates. The damper has a very low axial spring rate and it contributes very little to the axial load provided by the spring.

Abstract: To provide a vacuum valve with an improved endurance of a bellows, a vacuum valve comprises: a valve section including a first port, a second port, a valve seat provided between the first and second ports, and a valve element movable into or out of contact with the valve seat; an actuator section including an orifice through which an operating fluid is supplied to the actuator section, and a piston coupled to the valve element, the piston being allowed to operate according to changes of pressure of the operating fluid to apply a driving force to the valve section; and a bellows which can be contracted and elongated as the valve element vertically moves upward and downward. The orifice is designed to have an effective sectional area determined so that an operating speed of the valve element and the piston is controlled to a predetermined speed for preventing damage of the bellows.

Abstract: A check valve is provided that includes a valve body, a stop bar, a flapper, and a protrusion. The valve body has a flow channel extending therethrough, a first stop support, and a second stop support. The first and second stop supports extend axially from the valve body. The stop bar is coupled to and extends between the first and the second stop supports. The flapper is rotationally mounted to the valve body and comprises a first material. The protrusion is integrally molded with the flapper and extends axially therefrom. The protrusion comprises a second material that is non-metallic and different than the first material. The flapper is moveable between a closed position, in which the flapper at least substantially seals the flow channel, and a fully-open position, in which the protrusion contacts the stop bar and the flapper unseals the flow channel.

Abstract: A method and system for fine-tuning the motion of suction or discharge valves associated with cylinders of a reciprocating gas compressor, such as the large compressors used for natural gas transmission. The valve's primary driving force is conventional, but the valve also uses an electromagnetic coil to sense position of the plate (or other plugging element) and to provide an opposing force prior to impact.