Abstract: An electromagnetic valve manifold includes an electromagnetic valve including a discharge port, a manifold base including a discharge passage that is connected to the discharge port, and a check valve. The check valve includes a valve member, a valve housing including a valve seat, and an urging member. The valve housing includes a valve chamber that accommodates the valve member, a peripheral wall that defines the valve chamber, a valve hole that connects the valve chamber to the discharge port, and a discharge opening that connects the valve chamber to the discharge passage. The check valve is disposed in the discharge passage. The discharge opening is formed in the peripheral wall, at least a part of the discharge opening overlapping with the valve seat in a direction orthogonal to a moving direction of the valve member.

Abstract: An apparatus includes a catheter shaft assembly and an end effector positioned at a distal end of the catheter shaft assembly. The end effector includes a balloon, one or more electrodes on the balloon, and a tip assembly at a distal end of the balloon. The balloon defines an interior configured to receive a fluid to inflate the balloon. The balloon is sized and configured to fit within a cardiovascular anatomical structure. The tip assembly includes a pressure relief valve that is configured to transition between a sealing state and a pressure-relieving state. In the sealing state, the pressure relief valve is configured to prevent fluid from leaking out from the interior of the balloon via the pressure relief valve. In the pressure-relieving state, the pressure relief valve is configured to provide a path for fluid to leak from the interior of the balloon via the pressure relief valve.

Abstract: A pressure actuated switching valve includes a first valve chamber including a first chamber portion. The first chamber portion has a first inner diameter, a second chamber portion having a second inner diameter that is greater than the first inner diameter, a third chamber portion having a third inner diameter that is greater than the first inner diameter, a fourth chamber portion having a fourth inner diameter that is greater than first inner diameter, and a valve member. The valve member includes a first section having a first outer diameter that is greater than the first inner diameter. A second section of the valve member has a second outer diameter that is closely matched to the third inner diameter. A third section of the valve member is arranged has a third outer diameter that is greater than the first outer diameter.

Abstract: A valve, such as a throttle valve plate, which is suitable for use with a throttle assembly, and is able to withstand a backpressure test. The throttle valve plate includes a flat plate, and a plastic material overmolded onto a portion of the valve plate. The plate includes at least one rib, and may include a plurality of ribs, allowing for a thinner and lighter weight plate which is manufactured at a lower cost. The valve may also be a two-piece valve plate having an overlap portion. The two pieces of the valve plate overlap at the portion of the valve plate which interfaces with the shaft of the throttle assembly. The remaining portion of the plate surface includes at least one ribbed feature, and may include a plurality of ribbed features which reduce material usage and therefore reduce weight and cost, but also provide the required strength and rigidity.

Abstract: At a diameter-decreasing operation during manufacture of a poppet valve, an intermediate stem portion at which a valve head portion and an intermediate stem portion are made integral by way of a neck portion may be inserted between/among diameter-decreasing tools. Application of compressive forces from compressing surfaces of the diameter-decreasing tools may cause a part of the intermediate stem portion to be decreased in diameter and may cause a main body portion of a first stem portion to be formed and may cause formation of a stepped portion which is continuous with the main body portion, and formation, by an absence of decrease in diameter, of a second stem portion which is broader in girth than the main body portion and which is continuous with the neck portion and which is also continuous with the main body portion by way of the stepped portion.

Abstract: The present disclosure provides a method of designing and manufacturing a hydraulic valve block based on selective laser melting. The method includes providing a machined hydraulic valve block, determining whether the machined hydraulic valve block needs weight reduction, if the machined hydraulic valve block needs weight reduction, taking reduction of the pressure loss of the flow channel as an optimization goal and optimizing the flow channel of the machined hydraulic valve block to obtain an optimized flow channel structure model, taking reduction of the weight of the hydraulic valve block as an optimization goal and optimizing solid portions of the optimized flow channel structure model by using a topology optimization method to obtain a three-dimensional solid structure model of a hydraulic valve block and printing the three-dimensional solid structure model by using selective laser melting to obtain the hydraulic valve block.

Abstract: A non-welded type branch piping reinforcement apparatus capable of preventing damage to a branch pipe system by increasing the strength of the branch pipe system by covering and protecting the branch pipe system connected to a header pipe, by a joint clamp, a connection pipe clamp, and a valve clamp includes: a joint clamp arranged to cover the branch pipe joint and the connection pipe and having an arc-shaped cross section; a connection pipe clamp arranged to cover the connection pipe and having an arc-shaped cross section; and a valve clamp arranged to cover the connection pipe and the valve and having an arc-shaped cross section, wherein one end of the connection pipe clamp is connected to the joint clamp and the other end of the connection pipe clamp is connected to the valve clamp.

Abstract: A foot brake valve for operating a vehicle brake system associated with wheels of the associated vehicle includes a plunger, a primary piston, and a volute spring. The plunger is positioned based on a position of an associated brake pedal depressed by an operator for engaging an associated service brakes of the vehicle. The primary piston positioned based on a position of the plunger. The volute spring biases the primary piston against a depression of the brake pedal.

Abstract: Device for packaging and dispensing drops of a substance for ophthalmic use, generally fluid, semi-fluid or in suspension, emulsion or oily solution, comprising a dispensing accessory (7) with a first valve (5) made of an elastomer material that allows the substance to pass through when the dispensing accessory (7) is stressed, without allowing outside air to pass through in the opposite direction when the dispensing accessory (7) is relaxed, characterized in that the first valve (5) is covered by a layer of Parylene.

Abstract: An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. The method also includes determining a relationship of an orifice area to the output characteristic. Further, the method includes shaping an orifice in a valve based on the orifice profile and the specified relationship between the valve position and the output characteristic. According to the method, the valve should approximately exhibit the specified relationship.

Abstract: A reciprocating drive mechanism having a housing with upper and lower internal chambers with a spool slidably positioned inside the upper internal chamber. There is at least one fluid inlet and fluid exhaust communicating with the upper internal chamber and at least one slide valve positioned within the upper internal chamber and traveling with the spool. A piston positioned in the lower internal chamber divides the lower internal chamber into an upper and lower cylinder space. A valve stem is connected to the piston and includes a bore communicating with the upper internal chamber and an exhaust passage is positioned between the upper and lower internal chambers.

Abstract: A slit valve (10) to selectively restrict the passage of a fluent substance between an interior environment (17) and an exterior environment (15) and a method for forming the valve (10), the method including the steps of providing at least one layer of film material and permanently deforming the film material to define a valve (10) for selectively restricting the passage of a fluent substance between an interior environment (17) and an exterior environment (15).

Abstract: A microvalve for controlling fluid flows, and a sealing device for sealing cavities in a microfluidic system, particularly in a lab-on-a-chip system, and a method for the production thereof. A sealing surface of a valve body, or a sealing element, respectively, rests on a sealing surface of a substrate and is pressed against the sealing surface of the substrate in a fluid-tight manner by means of a clamping element. The clamping element and/or the valve body, or the sealing element, respectively, are at least partially elastic.

Abstract: A fuel injector assembly tool includes a frame coupled to a gun body, and a push rod configured to traverse through the frame and the gun body, the gun body having a fixed handle and a trigger for causing distal movement of the push rod as the trigger moves towards the fixed handle. The tool further includes a pressure rod coupled to or forming a portion of the push rod, the pressure rod being arranged and constructed to apply pressure to a tip of a fuel injector to compress springs within the fuel injector and maintain internal alignment of fuel injector components. In one arrangement, the tool includes a pressure rod adaptor nut coupling the push rod to the pressure rod. A method of re-assembly of a fuel injector using the fuel injector assembly tool is disclosed. Additional embodiments are disclosed.

Abstract: A method for producing a throttle point, particularly in a channel of a valve piece of a fuel injector is disclosed. The following are performed: first, the outlet channel is created by machining. Then, the throttle point is stamped by a stamping die inserted into a guide hole. The pre-stamped throttle point is electrical-discharge machined in such a way that said throttle point has an electrical-discharge machined inlet area and comprises a stamped outlet area, which lies before a continuous cross-section expansion of the outlet channel as viewed in the flow direction.

Abstract: A method for producing a hollow engine valve is disclosed which involves gradually reducing the size of the outer diameter and inner diameter of a hollow shaft of a semi-finished product sequentially inserting the hollow shaft into a plurality of molding holes having different hole shapes so as to gradually extend the length of the hollow shaft, and forming the hollow shaft into a predetermined shape by sequentially performing a drawing process. The semi-finished product is subjected to heat treatment such that the hardness thereof is equal to or less than a predetermined hardness, and the maximum thickness between the hollow shaft and an umbrella portion connected to the bottom edge of the hollow shaft is formed to be thicker than the thickness of the hollow shaft by means of a molding hole of a die which is adjusted to have a specific length and maximum inner diameter.

Abstract: The present invention is directed to a blowoff valve assembly that utilizes a non-coiled spring for biasing a valve member in a compact space. The invention is further directed to a turbocharger system utilizing a blowoff valve with a non-coiled spring.

Abstract: The present invention relates to a drive mechanism for a spring assisted injection device configured for setting and expelling set doses of a drug. The drive mechanism comprises an assembly provided by a rotatable piston driver (6), a rotatable counter-element (15) and a spring device (19) tensioned between the piston driver (6) and the counter-element (15). During dose setting and during dose expelling the piston driver (6) and the counter-element (15) move relatively along an axis. A releasable interlock (6c, 15d) is provided for maintaining the piston driver (6) and the counter-element (15) in a fixed relative axial condition wherein the spring device (19) is in a tensioned state. The interlock provides for a simplified manufacturing process. The invention also relates to a method of assembling an injection device.

Abstract: A collapsible valve comprising a first portion with at least one dimple in a side thereof, and a second portion, the second portion being narrower than the first portion and arranged along an axial dimension of the first portion, the second portion including a cut therein.

Abstract: The embodiments disclosed herein relate to a valve that is configured to be coupled to a stent. The valve may include a body, a rim, and an opening. The opening may include three or more leaflets that are configured to open and close. The valve may further include a reinforcement member that may be coupled to the rim. The reinforcement member may be formed of a mesh or mesh-like material or may be made of a polymeric film. The reinforcement member may aid in preventing a stitching element from tearing through the rim of the valve and may be coupled to the inner diameter or the outer diameter of the rim. The reinforcement member may also be molded within the rim.

Abstract: Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.

Abstract: The invention relates to a valve device and to a method for transferring a transfer medium, said valve device and method having an inflow, an outflow and two valve disks which are arranged one behind another in the direction of flow and are pivotable about a common rotational axis for opening and closing the lumen which surrounds them, wherein the inflow and the outflow are formed by two housing sections which are lockable together, the ends of which facing one another receive in each case a valve disk with a fixedly connected half-shaft, wherein, with the housing sections in the locked state, the two half-shafts form one common shaft which is pivotable about the rotational axis and the valve disks abut closely against one another, and wherein, with the housing sections in the non-locked state, the valve disks in each case close the lumen of the housing section receiving them.

Abstract: A high capacity fluid control valve includes a valve body having a fluid inlet and a fluid outlet connected by a flow corridor, a valve seat disposed within the flow corridor the valve seat being located above a longitudinal axis of a flow pipes connected to the fluid inlet and the fluid outlet, and a valve plug disposed within the flow corridor, the valve plug cooperating with the valve seat to control fluid flow through the valve body. The valve seat is offset from the longitudinal axis of the flow pipes in a direction towards the valve plug.

Abstract: In some implementations, an apparatus includes a body, a receiver in contact with the body, two tensioners operable coupled to the receiver and a strap that includes strong and flexible material in which each end of the strap is attached to one of the two tensioners and the strap is in contact with the body.

Abstract: A method for the production of a valve is provided comprising molding a valve body with a first mold, preloading the valve body with a second mold, molding a sealing portion in an open position onto the valve body, and releasing the preloaded valve body. The sealing portion enters a closed position when the preloaded valve body is released. When the valve is in use, the sealing portion opens when under a fluid pressure, and closes when the pressure is released.

Abstract: There is provided a through-hole manufacturing method for a cylindrical body wall that enables the operation of forming a through-hole without leaving a machining burr on the wall of a cylindrical member to be easily and reliably carried out without depending on experts.

Abstract: A push fitting for a valve includes a body having a longitudinal axis along which a fluid can flow, the body defining an opening at a first end of the body. A push fitting assembly at the first end of the body includes a housing. The housing includes a first end which is integrally formed within a wall of the opening at the first end of the body and a crimpable second end which extends longitudinally beyond the first end of the body. The housing also includes a crimpable material such that the second end of the housing is crimpable to capture elements of the push fitting assembly at the first end of the body.

Abstract: The invention relates to a valve (1) for the blocking or controlled establishing of a volume flow of a working fluid in a flow path of a technical device for transmitting and/or storing of energy, in particular in a control device for a hydraulic drive.

Abstract: A valve-timing control apparatus includes a drive rotating member; a driven rotating member fixed to a cam shaft; an electric motor configured to rotate the driven rotating member relative to the drive rotating member; a motor housing connected integrally with the drive rotating member; a cover member located to face a front portion of the housing; a tubular motor output shaft provided inside the housing to be rotatable relative to the housing; and a plug member fixed to an inner circumferential surface of a tip portion of the tubular motor output shaft and configured to inhibit lubricating oil supplied into the tubular motor output shaft from leaking to an external. The plug member includes a core member formed in a bottomed tubular shape and formed with a through-hole in its bottom portion, and an elastic body coating at least the through-hole and an outer circumferential surface of the core member.

Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.

Abstract: A valve body arrangement for a hydraulic or pneumatic valve comprises two elements between which a valve body is retained. The two elements are welded together in a first region, preferably by the laser transmission method, and clamp the valve body in a second region with a force.

Abstract: A valved sheath introducer for venous cannulation, including a valve, sheath, handle and cap. The valve is configured to permit safe introduction and removal of medical instruments through the sheath introducer. The valve may have one or more anchoring members and a thickened central portion through which a slit is formed. The central portion may have one or more concave surfaces and the slit can be angled with respect to the top surface of the valve. The cap is attached to the handle, compressing a portion of the valve therebetween.

Abstract: Disclosed herein are heart valves made from a polymeric material, such as silicone. Specifically exemplified are heart valve embodiments made from a one or two-pieces of material, or which have low thrombogenic potential. Also disclosed are methods of fabricating such valves. Furthermore, also disclosed are systems for testing performance of heart valves.

Abstract: Disclosed is a method—for producing an engine valve (V) filled with metallic sodium (Na) within by means of: forming a stem section (S), which has a hollow section (H), at an intended size by successively drawing the stem section (S) using dies (D1, D2, Dx, Dx+1, Dn) in a manner so as to causing the size of the outer diameter and the inner diameter of the stem section (S) to contact in a stepwise fashion; and inserting metallic sodium (Na) into the hollow section (H) of the stem section (S)—wherein after drawing the stem section (S) until the inner diameter of the hollow section (H) of the stem section (S) has become a prescribed size (steps S11-S15) and then inserting the block-shaped solid metallic sodium (Na) into the hollow section (H) of the stem section (S) (step S16), the stem section (S) is further drawn (steps S17 and S18).

Abstract: A heart valve prosthesis and delivery systems are provided for replacing a cardiac valve. The heart valve prosthesis includes a self-expanding frame includes a portion having a crimp that provides additional flexibility to the self-expanding frame in the collapsed configuration.

Abstract: Disclosed herein is a dual packing retainer and dual sealing ball valve for use generally in high pressure applications. Further disclosed herein are methods of detecting seal failure before the ball valve must be taken offline due to the presence of secondary or backup seals.

Abstract: Configurations of piston actuators having seal retainers doubly acting as pressure chambers are disclosed. Further disclosed are methods of installing pressure chambers in piston actuators.

Abstract: An assembly for limiting excess flow includes a seat and a disc. The seat has an inner ring, an outer ring having a top surface tapering in a downstream direction from outer ring towards the inner ring, and a plurality of legs attaching the inner ring to the outer ring. The disc attaches to the inner ring and extends radially outwardly therefrom. The disk has an axially downstream surface that flexes into contact with the outer ring if the flow exceeds a limit around the disc, and a shoulder spacing the axially downstream surface from the inner ring to space the disc axially from the outer ring.

Abstract: A nipple of a check has a first portion that is selectively positionable within a housing of the check valve. A second portion of the nipple extends from the housing when the first portion of the nipple is selectively positioned within the housing. The check valve is configured to allow fluid flow through the check valve in either a first direction or a second direction when the first portion of the nipple is selectively positioned within the housing. The check valve is configured to prevent fluid flow through the check valve in the first direction when the first portion of the nipple is removed from the housing.

Abstract: Improved ball valve or pig valves with stems having higher stress yields are disclosed. Additionally, a method of changing using the same stem in a ball valve or pig valve in a low pressure application or a high pressure application is disclosed. Furthermore, a method of ensuring a correct stem is matched to a correct ball of a ball or pig valve is disclosed.

Abstract: Disclosed herein are improved diaphragm actuators capable of preventing the inhibition of movement of a diaphragm retainer plate when a stretched or improperly sized diaphragm is used. Such diaphragm retainer plates may be adjustable such that the thickness from the distal side to the proximal side is increased. Methods of preventing such inhibition of movement are also disclosed.

Abstract: An anti-freezing valve (1) comprises: a valve body (2) made of metal material (M), defining a passageway (5) for a liquid; an open/close member (9), mounted displaceable in the valve body (2), an anti-freezing arrangement. The valve body (2) is a valve body obtained by casting, which defines a valve seat (8), with respect to which the open/close member (9) is displaceable in a slidable manner between a raised position of opening and a lowered position of closing of the passageway (5). Embedded in the metal material (M) constituting the valve body (2) is an axially extended hollow member (13), belonging to the anti-freezing arrangement, for the passage of a thermovector fluid (F), the hollow member (13) having respective ends (14) accessible from outside the valve body (2), for connection to a circuit of the thermovector fluid (F).

Abstract: The invention relates to a method for producing a throttle (34) in a flow channel (24) that extends in a component (8), in particular a valve part, and that is used to control a medium from a control chamber. According to the invention, after formation of the flow channel (24) in the valve part (8), the throttle (34) is stamped by plastically deforming material in the vicinity of the flow channel (24) in the direction of the planned throttle (34), and the plastically deformed material acts in such a manner on a molding tool (50, 57, 58) introduced into the flow channel (24) in the position of the planned throttle (34) that a contour (57, 58) of the molding tool (50) defining the throttle (34) is formed in the flow channel (24). The plastic deformation is effected by a stamping die (40) moved with a defined force, while the contour of the throttle (34) is formed by a tip portion (57, 58) of a counter-die (50) used as the molding tool.

Abstract: The invention relates to a flat gate valve for fluid applications having a sandwich design and including at least one input port, one output port, a top plate and a bottom plate, with a sliding element being provided between said top plate and said bottom plate, which sliding element can be used to modify the fluid paths and flow characteristics which are adjusted by the position of the sliding element relative to the top plate and the bottom plate. The invention is characterized in that at least one spacer is provided between said top plate and said bottom plate which defines a distance of said top plate to said bottom plate, which distance is larger by a gap of a defined gap size than the thickness of said sliding element, wherein the sealing of the flat gate valve is exclusively accomplished by means of the set gap.

Abstract: A flow conditioner for use within a conduit conditions flowing media within the conduit to provide a swirl-free, symmetric, and reproducible velocity profile regardless of upstream flow distortions, disturbances, or anomalies. Tabs are cut from a single plate and bent or affixed to provide conditioning of the flowing media. Single tabs or tab pairs emanating from common vertices can be formed so that they diverge in, or against, the direction of flowing media. The flow conditioner requires as little as three pipe diameters to condition the flow stream allowing close placement to elbows, valves, tees, and other disturbances typically seen in pipes, ducts, or other conduits.

Abstract: An intravascular valve component broadly includes a valve case and a flexible pressure-actuated flow control valve. The valve case includes attached proximal and distal case portions that present respective spaced apart fluid ports and a fluid passageway extending between the ports. The flexible pressure-actuated flow control valve is disposed within the fluid passageway and includes a slitted central valve wall and an annular flange surrounding the central valve wall. The annular flange includes a radially-extending flange wall and a projection extending axially from the flange wall, with the projection engaging one of the case portions to restrict radial movement of the flow control valve relative to the valve case.

Abstract: The invention relates to a flap actuator, in particular to a servo/spoiler actuator, comprising at least one electrohydraulic servo valve and at least one actuator which are hydraulically connected to one another, wherein the actuator comprises at least one actuator housing in and/or at which the at least one channel is arranged by means of which one or more components, preferably likewise arranged in and/or at the actuator housing, are hydraulically connected and wherein no valve block is arranged between the actuator and the servo valve.

Abstract: A blood bag system includes a clamp installed in a flexible first tube. The clamp includes: a base section having a protrusion section, an opening/closing section having a pressing protrusion section that presses a side surface of the first tube, and a bent section that connects the base section and opening/closing section. The base section is provided with a pair of cutout sections opened to a side surface where the first tube can be inserted by interposing the protrusion section. The clamp is configured such that a portion of the first tube where the clamp is installed is bent while the clamp is released.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: A servovalve pilot stage (100) comprises a piezoelectric actuator (130) joined to a flow guide (132) and feedback wire (136) for connection to a main stage spool valve. The flow guide (132) and the piezoelectric actuator (130) may be integral.