Abstract: Provided are catalyst composites whose catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. The catalyst composites have a two-metal layer on a carrier, the two-metal layer comprising a rhodium component supported by a first support comprising a refractory metal oxide component or a first ceria-zirconia composite; a palladium component supported by a second support comprising a second ceria-zirconia composite; one or more of a promoter, stabilizer, or binder; wherein the amount of the total of the first and second ceria-zirconia composites in the two-metal layer is equal to or greater than the amount of the refractory metal oxide component. Methods of making and using the same are also provided.

Abstract: A beverage making device comprising a brewing chamber for enclosing a pad containing a substance from which the beverage is brewed. A water supply conduit is present between pumping means and the brewing chamber. The brewing chamber has an outlet having an orifice through which the brewed beverage can leave the brewing chamber. A portion of the wall of the brewing chamber is stationary and the other portion of the wall can move away from the stationary part in order to open the brewing chamber. Means (1) are present for releasing pressure from the brewing chamber after the water supply to the brewing chamber has been terminated.

Abstract: A valve assembly, in particular a solenoid valve, is disclosed. The valve assembly includes an at least two-part housing that has a first housing sleeve and a second housing sleeve, the housing sleeves being held against each other by compression of a fastening zone. The valve assembly further includes a valve receptacle in which the valve is inserted and by means of which a press-in ring positioned in the region of the fastening zone is held. The press-in ring rests radially against the first housing sleeve and axially against the second housing sleeve.

Abstract: A hydraulic two-way valve includes a pump connection, a tank connection, and first and second working connections. The working connections are connectable to a hydraulic cylinder of an agricultural vehicle lifting mechanism. The pump connection is connectable to a hydraulic pump. In a first position, the pump connection, tank connection, and working connections are shut off. In a second position, the pump connection is connected to the first working connection and the tank connection to the second working connection. In a third position, the pump connection is connected to the second working connection and the tank connection to the first working connection. In a fourth position, the working connections are connected to the tank connection and the pump connection is shut off. In a fifth position, the tank connection is connected to the second working connection and the pump connection and first working connection are shut off.

Abstract: An electrically actuatable valve for injecting fuel includes a magnetic actuator having multiple components, at least one component of the magnetic actuator having multiple sectors made of soft magnetic material and multiple insulating separating webs. A separating web is situated between each two neighboring sectors and entirely separates the neighboring sectors from one another electrically.

Abstract: A directional valve for controlling an actuator by a pressurized medium, including: a pressure port; a work port; a tank port; a spool moving axially inside the directional valve; a first position of the spool, in which the spool tends to be set, and a second position, to which the spool can be moved by a pilot control force and in which the spool opens the flow of pressurized medium from the pressure port to the work port. The directional valve further includes a feedback chamber in which the pressure generates a feedback force effective on the spool and opposite to the pilot control force. In its second position, the spool guides the pressure of the work port to the feedback chamber, and in the second position, the directional valve generates a feedback force proportional to the pressure of the work port, moving the spool to shut off the flow.

Abstract: A solenoid valve includes: a valve body having a fitting hole; a tubular sleeve fitted in a fitting hole and having a valve hole, a supply port, and an output port; and a spool valve that is accommodated in the valve hole of the sleeve and that changes a flow passage area between the supply port and the output port by moving axially. A pair of recessed portions is formed in an outer peripheral face of the sleeve, at positions on axially opposite sides of the supply port, so as to extend in the circumferential direction of the sleeve. A strip-shaped first strainer is fitted in the recessed portions. A cutout into which a pressure for suppressing an offset of the central axis of the sleeve from the central axis of the fitting hole, is formed in the sleeve so as to be communicated with the supply port.

Abstract: An oil pressure control device includes a valve body and a spool valve arranged in the valve body. When the valve body is mounted to a vehicle, the valve body is arranged in air, and has a concave portion which stores oil at a position facing on an upper side. The spool valve has a damper chamber and an orifice causing the damper chamber to communicate with outside. The concave portion is arranged to communicate with a clearance defined between a sleeve of the spool valve and the valve body, and the orifice is opened in a bottom part of the concave portion.

Abstract: An ejector has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114; 300; 400) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle has a throat (106) and an exit (110). An actuator (204) is coupled to the motive nozzle to drive a relative streamwise shift of the exit and convergent section.

Abstract: A pressure balanced solenoid operated valve includes a solenoid portion having a coil in a coil retainer. A valve member portion defines a body connected to the solenoid portion. A slidable valve member in the body has opposed first and second ends and a shoulder between the ends. The first end with the coil energized is magnetically drawn toward the coil retainer moving the valve member between a valve closed and a valve open position. A pressure equalizing passage extends in the valve member from the second end. An inlet passage communicates a pressurized fluid at a valve inlet port to the pressure equalizing passage. A connecting passage communicates between the pressure equalizing passage and the shoulder. The pressurized fluid in the pressure equalizing passage acts against the second end and equally and oppositely against both the shoulder and the first end in both the open and closed positions.

Abstract: A communication hole is formed in a peripheral wall portion of a yoke. The communication hole communicates between an inside and an outside of the yoke. A gap, which is formed between one end portion of the coil and a bottom wall portion of the yoke, overlaps with the communication hole in an axial direction.

Abstract: A linear type flow control valve includes a spool valve element fitted in a valve housing, and having a characteristic of an output flow rate such that a positive output flow rate increases after a negative output flow rate decreases toward zero and pass a neutral point on which the output flow is zero with an increase of the shifting stroke of the spool valve element. The flow control valve includes a damper chamber and a restricting section. The restricting section forms a restricting flow passage having a larger flowing cross-sectional area of the working fluid when the spool valve element assumes a shift position on a positive output flow rate side of the neutral point of the spool valve element than that when the spool valve element assumes a shift position on a negative output flow rate side.

Abstract: A spool valve for controlling fluid communication among hydraulic cylinders operating control and slave portions of a surgical device. The spool valve may be used to disconnect the control and the slave portions from one another such that there is no fluid communication between the control and slave portions. The spool valve may be used to engage or allow fluid communication between the control and slave. The spool valve may also be used to allow fluid communication between the slave and control portion and a fluid reservoir, thus allowing the hydraulic system to replenish fluid lost to evaporation, leakage, or other escape. The spool valve includes a body portion having at least two ports and a spool having at least one passageway moveable to a position so as to communicate with the at least two ports.

Abstract: A method of rebuilding a pressure control solenoid includes uncrimping a housing of the solenoid, and disassembling the solenoid. An original spool valve of the solenoid is removed from a hydraulic bore of the solenoid. The hydraulic bore is reamed such that an inner diameter of the bore is enlarged. A replacement spool valve is inserted into the hydraulic bore. An outer diameter of the replacement spool valve is larger than an outer diameter of the original spool valve.

Abstract: A rotary shear valve having three-point stator seating is provided. Three contact points are predetermined between a bottom of the stator and a valve body rim and three clamping pads may also be predetermined. The three clamping pads and the three points of contact between stator and the valve body rim are corresponding and aligned when the rotary shear valve is assembled so that the clamping or compression forces on both sides of the stator directly oppose one another, thereby effectively canceling each other. In one embodiment, the stator includes three contact points on the bottom surface proximate the periphery of the stator to contact the valve rim and a gasket includes three clamping pads proximate the periphery of the gasket web to apply a compression force on the top surface of the stator above the three contact points.

Abstract: A biasing force adjustment device includes: a cylindrical component having a first thread part; a reciprocate component accommodated in the cylindrical component; a biasing portion that biases the reciprocate component in a first direction; and a biasing force adjustment component that adjusts a biasing force of the biasing portion. The biasing force adjustment component has a second thread part engaged with the first thread part so as to control the position of the biasing force adjustment component relative to the cylindrical component, and a regulation part that regulates movement of the biasing force adjustment component relative to the cylindrical component by being deformed in a radial direction by external force applied in the first direction.

Abstract: A solenoid actuator comprising an armature member that engages a spool including a spool cap on an end of the spool that is axially movable relative to the spool. A bore in the spool allows fluid to flow from a control port to the spool cap, such that pressure is established in the spool cap. The pressure established in the spool cap acts on the spool with a force directly proportional to the control pressure and the fluid-contacting area inside the spool cap.

Abstract: A configurable actuation-orientation valve (100) includes a valve body (120) including a valve bore (126) and a coil (180), a first port (101) and a third port (103) located at a first end (111) and a second port (102) located at a second end (112), a pole piece (138), an armature (130) configured to move in response to energization of the coil (180), and a biasing device (135) between the pole piece (138) and the armature (130). When the biasing device (135) is selected to provide a normally-closed biasing force to the armature (130) then the configurable actuation-orientation valve (100) comprises a normally-closed (NC) valve and when the biasing device (135) is selected to provide a normally-open biasing force to the armature (130) then the configurable actuation-orientation valve (100) comprises a normally-open (NO) valve.

Abstract: A control valve for an automatic transmission includes a valve body including a chamber and a control pressure port, metering edges formed in the valve body at the control pressure port, a reference surface formed in the valve body, a spool displaceable along the chamber, and a solenoid module including a pin for displacing the spool, and located in the chamber by contact with the reference surface.

Abstract: On an outer surface of an electromagnetic valve body, a manual operation element is provided slidably horizontally, and a slide member is provided slidably in a direction orthogonal to a sliding direction of the manual operation element. The slide member is movable to a lock position and a non-lock position. At the lock position, the slide member is retained by the manual operation element to lock the manual operation element at a non-switch position. At the non-lock position, the slide member unlocks the manual operation element to allow the manual operation element to move toward a switch position.

Abstract: In a preferred embodiment, the present solenoid control valve is provided which has a valve sleeve having upper and lower feedback chambers which are connected to control pressure by an exterior surface longitudinal slot or slots.

Abstract: A filter element for a control valve of a camshaft adjuster. The filter element has an annular filter fabric for extracting particles, and a gripping frame for fastening the annular filter fabric. The gripping frame is designed here for the planar bracing of the annular filter fabric on the control valve. Furthermore, a control valve is disclosed for a camshaft adjuster with a corresponding filter element.

Abstract: In an embodiment, a capacity control valve includes: a pressure-sensitive body 50 positioned in a third valve chamber 38; an adapter 53 provided on the free end of the pressure-sensitive body 50 having a circular seating surface; a third valve part 43 that moves integrally with a valve element 40 in the third valve chamber 38 and has a circular engagement surface that opens/closes intake-side passages 34 by engaging with and separating from the seating surface of the adapter 53; and a solenoid 60 that applies an electromagnetic drive force to the valve element 40 in the direction of closing a first valve part 41, wherein the pressure-sensitive body 50 is formed by a formed bellows made of material having greater yield stress than phosphor bronze, and the formed bellows has its diameter set smaller and its stroke longer than the diameter and stroke of a phosphor bronze bellows.

Abstract: A pressure control valve designed as a slide valve and having an axially situated supply port.

Abstract: A control valve includes a spool formed with a fluid passage allowing a circulation of an operation fluid for switching a supply of the operation fluid to plural operation fluid supply portions, a cylindrical sleeve including plural supply and exhaust ports supplying and exhausting the operation fluid to and from the plural operation fluid supply portions and plural drain ports allowing the operation fluid returning from the plural operation fluid supply portions to drain, the sleeve slidably accommodating the spool therein, a solenoid mechanism for changing a position of the spool relative to the sleeve, and a communication portion formed on an outer periphery surface of the sleeve, the communication portion connected to plural drain ports.

Abstract: A solenoid valve 10 including a valve sleeve 41, and a solenoid portion 20 which is mounted at one end along axial direction of the valve sleeve 41. A plurality of ports 51 to 54 are formed on the valve sleeve 41. In at least an outlet port 51 of the plurality of ports, a relation of S1?S0 is fulfilled, where S1 is an opening area of valve portion when the spool 60 moves in an axial direction to maximally open the valve portion between the outlet port 51 and the internal flow passage 47, and S0 is the total flow passage cross-sectional area.

Abstract: An oil control valve has a cup shaft and a plunger. The cup shaft and the plunger have a projection and a recess to provide a male-female joint. The male-female joint provides contact points which can reduce lateral offset and inclination. The projection and The recess provides two or more force transmitting points from the plunger to the cup shaft, when the projection and the recess are inclined with each other. The force transmitting points are located about the central axis of the spool in a distributed manner.

Abstract: A flow control valve includes a body having a body bore oriented coaxially with a longitudinal axis of the body and a seat member extending into the bore. A valve member is slidably disposed in the bore and oriented coaxially with the longitudinal axis of the body. The valve member includes a non-circular geometrically shaped head having a bore. A drive adapter includes a head receiving cavity slidingly receiving the geometrically shaped head of the valve member and preventing axial rotation of the valve member. A stepper motor is connected to the drive adapter, the stepper motor incrementally rotating a shaft engaged with the bore of the valve member. First and second equal diameter pistons of the valve member provide pressure balanced valve member operating positions.

Abstract: A direct drive servovalve (10) includes redundant drive motors (14) coupled to a common valve drive shaft (22,24) by a connection device (26). The connection device (26) is configured to allow operation of the servovalve (10) in the case where one or more of the drive motors (14) becomes inoperable, such as caused by jamming or binding of a rotor associated with the drive motor. By use of the connection device (26), in the event that one of the drive motors (14) was to become jammed, the remaining operable motors (14) can continue to stroke or cause translation of a valve member (18) of the direct drive servovalve (10) to allow its continued operation.

Abstract: An oil pressure regulation valve includes a spool supported in a sleeve to be slidable in an axial direction, a solenoid actuator disposed to generate an electromagnetic force for driving the spool to one axial end side, and a biasing portion configured to bias the spool to the other axial end side. The sleeve is provided with an input chamber to which an oil pressure input port is open, and an output chamber to which an oil pressure output port is open. The spool includes a land portion that is exposed to the output chamber to be biased to the one axial end side by using oil pressure in the output chamber, and the spool is movable to the one axial end side when the land portion is biased to the one axial end side by using the oil pressure in the output chamber.

Abstract: The invention relates to a hydraulic manifold apparatus and system, connectable to a dual stage motor, for use in the topdrive of drilling operations. The hydraulic manifold is switchable between a low speed, high torque configuration and a high speed, low torque configuration. Valves within the manifold control the flow of working fluid through the manifold and into and out of the motor. Switching means are further provided to control the opening and closing of the valves. In the low speed, high torque configuration, working fluid enters each stage of the dual motor simultaneously, in parallel. In the high speed, low torque configuration, working fluid enters a first stage of the motor, returns to the hydraulic manifold, then enters a second stage of the motor, before returning again to the hydraulic manifold. Thus during high speed, low torque operation, working fluid enters each stage of the dual motor in series.

Abstract: A flow channel switching valve is provided including a stator and a rotor inside a housing, in which the rotor is rotated by a rotor drive portion while sliding on the stator. A rotor drive shaft holding the rotor is biased to a housing top side by an elastic member. A drive shaft stopper is provided that limits movement when the rotor drive shaft moves to the housing top side from a normal position when a housing top is attached to a housing body.

Abstract: A flow channel switching valve is provided that includes a stator and a rotor inside a housing, and rotates the rotor by a rotor drive portion while sliding the rotor on the stator, wherein the stator is fixed to a housing top by a stator fixing member. The stator fixing member is configured so as to have a portion detachably mounted on the housing top from a stator side, and a portion holding the stator.

Abstract: A contamination level determination system for hydraulic oil is provided with a pilot filter arranged in a line of a hydraulic circuit of a hydraulic working machine to remove, from the hydraulic oil, foreign matter of particle sizes that may cause an operation failure of the hydraulic working machine. A first light-blocking sensor senses passage of foreign matter on an upstream side of the pilot filter. A second light-blocking sensor senses passage of foreign matter on a downstream side of the pilot filter. An onboard controller unit functions to determine a frequency of sensing of foreign matter by the first light-blocking sensor, to determine a frequency of sensing of foreign matter by the second light-blocking sensor, and to determine a contamination level on the upstream side of the pilot filter on the basis of results of the determinations from both sensors.

Abstract: 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.

Abstract: A pressure control valve includes a housing, a valve slide guided in the housing, on which at least one inflow control edge is configured, which cooperates with an inflow opening in the housing, a constriction in piston being present adjacent to inflow control edge, which lies at least approximately opposite to a control opening. It is provided that the valve slide have a circumferential annular groove, which lies on the side of the inflow control edge facing away from the constriction and approximately opposite the inflow opening.

Abstract: A pressure control valve includes a housing comprising a reference pressure connection, a reference pressure chamber, a preliminary pressure connection, a preliminary pressure chamber, a control pressure connection and a control pressure chamber which are configured to cooperate with a control member moveable in an axial direction within the housing so as to adjust a desired control pressure between a preliminary pressure at the preliminary pressure connection and a reference pressure at the reference pressure connection. A driving device is configured to act on the control member. At least one first sealing device is configured to seal the reference pressure chamber against the control member. At least one second sealing device comprising a second sealing element is configured to seal the preliminary pressure chamber against the reference pressure chamber. At least one third sealing device is configured to seal the control pressure chamber against the preliminary pressure chamber.

Abstract: A valve system structure to facilitate actuation of tools, such as actuating pads in a steering section of a wellbore drilling assembly. A valve system may comprise a bi-stable actuator which controls two double-stage valves. Each of the double-stage valves is able to perform both charging and dumping functions which facilitate use of the valve system in a variety of downhole applications. In drilling applications, a single valve system is able to operate a plurality of actuating pads.

Abstract: A pressure control valve device with at least one inlet area and first and second outlet areas which can be connected by two poppet valves. A flow guide device (21), with inflow and outflow areas (22, 23) for guiding the fluid flowing from the inlet area in a defined manner in the direction of the second poppet valve, is located upstream of the second poppet valve, between the first and second outlet areas. The fluid in the flow guide device (21) passes in the area between the inflow and outflow areas (22, 23) through a plurality of channel areas distributed around the periphery of the flow guide device (21) and separated from one another, which are shaped at least approximately helically and impart an at least approximately vortex-like flow pattern to the fluid flowing in the direction of the second poppet valve downstream of the outflow area (23).

Abstract: A hydraulic control valve apparatus including a valve body and a hydraulic control valve that is disposed in the valve body in parallel to an upper horizontal surface of the valve body. The hydraulic control valve includes a spool, a biasing member that biases the spool, and a damper chamber that accommodates the biasing member. The valve body includes a drain hole through which a pressurized oil is discharged from the hydraulic control valve, and a first communication passage that allows fluid communication between the drain hole of the valve body and the damper chamber of the hydraulic control valve. The drain hole and the first communication passage are formed on the upper horizontal surface of the valve body.

Abstract: Disclosed is an exemplary valve having a first valve member that may include at least one orifice, and which is moveable between a first position and a second position, and a second valve member that includes at least one orifice, and which is moveable relative to the first valve member between a first position, in which the at least one orifice of the second valve member is fluidly disconnected from the at least one orifice of the first valve member, and a second position, in which the at least one orifice of the second valve member is fluidly connected to the at least one orifice of the first valve member. The exemplary valve may also include first and second actuators for moving the first and second valve members between their respective first and second positions.

Abstract: A wide variety of machines have moveable members that are operated by an hydraulic actuator. For example, an internal combustion engine has a camshaft which is mechanically coupled to rotate with the crankshaft and which opens and closes cylinder intake and exhaust valves. Traditionally the camshaft timing was fixed at a setting that produced the best operation for all engine operating conditions. However, it has been recognized that engine performance can be improved if the valve timing varies as a function of engine speed, engine load, and other factors. Thus a hydraulic actuator is being used on some engines to vary the coupling relationship of the camshaft to the crankshaft. A solenoid operated valve controls the application of pressurized fluid to operate the hydraulic actuator.

Abstract: An electromagnetic valve comprising casing, a coil and a mobile nucleus, sliding axially across the entire extension of the coil, between two operative positions wherein there is an interface with a powering body and a discharging body. The configuration of the electromagnetic valve guarantees a precise guide of the mobile nucleus free from sticking and enables speed and precision in the assembly of the electromagnetic valve.

Abstract: A piezo valve actuated by an electric voltage. The piezo valve includes a valve body having at least one port for introducing a fluid therethrough, an internal chamber communicating with the port, at least one valve seat for allowing the fluid to pass therethrough, and a circuit board for supplying an electric voltage; a valve unit opening or closing the valve seat of the valve body; a piezo plate bending-strained to either of opposite sides in response to the electric voltage, thus moving the valve unit; and a fastener fastening an end of the piezo plate to the valve body in a state in which a position of the piezo plate can be adjusted. Because the end of the piezo plate is fastened by the fastener, it is possible to fasten the piezo plate in a state in which the fastened position of the piezo plate can be adjusted.

Abstract: A multiplexing valve assembly includes a valve slidably disposed within a valve body, hydraulic module, or packaged in a stand alone solenoid cartridge. A plurality of fluid passages communicate with the multiplexing valve assembly. The valve includes a plurality of lands. Radial fluid passages disposed in the lands and a longitudinal fluid passage disposed in the valve allow hydraulic fluid within the fluid passages to be selectively exhausted via a single exhaust port. Movement of the valve within the valve body directs hydraulic fluid from one or more input fluid passages to a plurality of outlet fluid passages. The valve is actuated directly by an armature in the solenoid directly acting on the valve or through hydraulic fluid controlled by a solenoid.

Abstract: A shut-off valve for opening and closing a cryogenic tank that has particular application for a hydrogen consuming system, such as a fuel cell system or an internal combustion engine. The shut-off valve is positioned in a supply line coupled to the cryogenic tank, and is opened by a control valve. When the control valve is actuated, hydrogen pressure from the supply line is used to open the shut-off valve. The control valve is coupled to the output line either upstream or downstream of the shut-off valve. An output of the control valve can be vented to a cathode input, an anode input or a cathode exhaust of a fuel cell stack, to an air input of an internal combustion engine or to ambient, depending on the particular application.

Abstract: An electric switching valve for controlling a pneumatic actuator element includes a housing with a ventilation connection channel, a vacuum connection channel and a consumer connection channel. The vacuum connection channel comprises a first valve seat and the ventilation connection channel comprises a second valve seat. An electromagnetic drive is arranged in the housing. The electromagnetic drive is configured so that a magnetic armature is translationally movable in a passage channel to form a valve closure body for each of the vacuum connection channel and the ventilation connection channel. A cross-sectional constriction device is disposed in the ventilation connection channel.

Abstract: A pulsator comprises a valve chamber and an armature arranged in the valve chamber. An electrically powered coil at least partially surrounds the valve chamber and generates a magnetic flux. A magnetic pole piece is arranged in the valve chamber and has a metal surface. The armature has a first end nearest the magnetic pole piece and a second end. The first end of the armature has a metal surface and the second end has a first sealing surface and a second sealing surface.

Abstract: A damping force controlling valve assembly for a shock absorber is provided. The damping force controlling valve assembly includes: a main body part of a retainer having an inlet passage connected to a high pressure side of the shock absorber; a main valve generating a damping force while resisting a working fluid flowing in through the inlet passage; a spool rod part interacting with a spool inserted thereinto and supplying a working fluid through a connection port to a back-pressure chamber provided at the rear of the main valve; a solenoid part controlling a position of the spool to adjust a pressure of the back-pressure chamber; and an auxiliary valve disposed at an upstream of the main valve to generate a damping force in an extremely low speed section in advance of the main valve.

Abstract: A bistable valve (100) is provided according to an embodiment of the invention. The bistable valve (100) includes an armature (108) movable to selectively block and unblock at least a first port (104) and a biasing device (112) configured to provide a first biasing force that biases the armature (108) toward a first position blocking the first port (104). The bistable valve (100) further includes a plurality of substantially radially magnetized permanent magnets (114) configured to provide a second biasing force to the armature (108) substantially opposite to the first biasing force and an electromagnetic coil (116) configured to generate a third biasing force when energized with a first current polarity. The third biasing force is substantially opposite to the first biasing force and in combination with the second biasing force overcomes the first biasing force and moves the armature (108).