Abstract: A barstock body fluid control valve comprising a barstock body of preselected material having an inlet end and an outlet end, and a preselected cross section defining the outer walls; a through machined main flow port located eccentrically on the inlet and the outlet ends wherein the main flow port eccentric location increases the available barstock thickness at one outer wall location and decreases barstock thickness in the opposite wall.

Abstract: The present invention discloses a valve integrally associated with a microfluidic transport assembly that is useful for regulating the flow of a liquid sample through an analytical instrument such as, for example, a biosensor.

Abstract: An integrated in-line tube and check valve assembly fabricated by end-form mandrel expanding an outlet end portion of deformable tube stock, such as metal, of nominal starting diameter, and concurrently end-forming a valve seat on the inside of the expanded tube section where it necks down and integrally joins the upstream nominal diameter portion of the tube. A valve ball and a valve spring are then fitted into the expanded tube section, together with a spring holder if needed. The expanded end portion of the tube is then again deformed by an end-form swaging operation that reduces the diameter of the expanded tube outlet end so as to form a cavity within the tube in which the spring is captured in compression for resiliently biasing the valve ball against the valve seat.

Abstract: A method for adjusting piezoelectric valve components to create a precise interface between a piezoelectric actuator and a movable valve plunger is provided which includes the steps of conducting a coarse adjustment prior to assembly followed by a fine adjustment after assembly. The method includes measuring a first difference between a valve body and a valve plunger, and compensating for this first measured difference such that surfaces of the valve body and the valve plunger are in a common plane. A second common plane is established between an end surface of an actuator housing and an end of an actuator rod. The step of compensating for the first measured difference can comprise machining the surfaces in the first common plane or using a shim. A second adjustment is conducted by rotating a nut disposed axially with the actuator rod to adjust the axial position of the valve plunger.

Abstract: A method for match lapping a ball valve assembly including a ball and a seat, the method having the following steps: contacting the seat with the ball; rotating the ball about a first rotational axis; rotating the seat about a second rotational axis; and changing an angle formed at the intersection of the first and second rotational axes. The method may include applying lapping compound to one or both of the seat and ball.

Abstract: A method of processing a valve mechanism which includes a valve body having a shut-off surface in the form of a convex spherical surface, a valve hole, a valve seat formed by an opening of the valve hole, and a spring which urges the valve body toward the valve seat, wherein the valve mechanism is so formed that the valve body resists the urging force of the spring in accordance with the pressure increase in the valve hole to be separate from the valve seat, includes the steps of: preparing a processing tool having a processing surface in the form of a convex spherical surface which has the same curvature radius as the shut-off surface of the valve body; positioning the processing tool to the valve seat; and forming the valve seat along the form of the processing surface by pushing the processing surface of the processing tool against the valve seat.

Abstract: A method for manufacturing a valve-seat member of a fuel injector having helical grooves in a recess to generate a swirl, a valve-seat surface of the valve-seat member cooperating with a valve-closure member of fuel injector 1 to form a sealing seat, and the recess being used to guide the valve-closure member. The method includes producing a blank of the valve-seat member, introducing the recess, the valve-seat surface) and at least one spray-discharge orifice into the blank of the valve-seat member and introducing the helical grooves into the recess. The introduction of the helical grooves into the recess is carried out by a non-cutting machining step.

Abstract: A check valve retainer for a scroll compressor includes a retaining lip that fits into a recess formed in a scroll. The retaining lip may be manufactured as an integral part of the check valve retainer for press fitting or may be formed by an expansion fit locking member having a protrusion that forces a portion of check valve retainer wall into the recess. The retaining lip ensures that the check valve retainer stays attached to the scroll without risking scroll deformation.

Abstract: A process for manufacturing a valve trim assembly. The process comprises providing a flow disk having an outer diameter, an inner diameter, and an outer disposable flow disk portion, providing a separation disk having an outer diameter and an inner diameter, wherein the flow disk outer diameter is greater than the separation disk outer diameter, stacking the flow disk on the separation disk, and removing the outer disposable flow disk portion creating a reduced flow disk outer diameter. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. §1.72(b).

Abstract: A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.

Abstract: An improved method of sluice gate valve fabrication in which a cylindrical rod of an appropriate diameter is first cut and then the cylindrical rod is forged into a blank for a disk-shaped sluice gate body and pivot stems, with the pivot stems respectively formed at the upper and lower ends of the sluice gate body to provide for installing the pivot stems in the interior section of the sluice valve. The raw edges along the periphery of the blank are then removed by pressure punching to form a finished sluice gate body. The pivot stem at the lower end of the sluice valve body is machined into an abraded welding surface and then a shaft having the same diameter of the pivot stem is aligned with abraded welding surface and friction welded to it. As such, the pre-forged sluice gate and the friction welding of an existent shaft onto the pivot stem at the lower end of the sluice gate body minimizes forging mold volume and, furthermore, reduces the quantity of material required for sluice gate fabrication.

Abstract: A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and the second work piece axially between a pair of aligned elements that are relatively movable toward and away from each other along the longitudinal axis of the first work piece. Additionally, the method includes relatively moving the pair of aligned elements toward each other to axially clamp the first work piece and the second work piece and actuating the pair of aligned elements and delivering to the first work piece and the second work piece a controlled clamping force that acts to coin a zone of surface contact between the first end and the surface. Further, the method includes repeating the actuating of the pair of elements a plurality of times.

Abstract: A barstock body fluid control valve comprising a barstock body of preselected material having an inlet end and an outlet end, and a preselected cross section defining the outer walls; a through machined main flow port located eccentrically on the inlet and the outlet ends wherein the main flow port eccentric location increases the available barstock thickness at one outer wall location and decreases barstock thickness in the opposite wall.

Abstract: An element for controlling the fluid flow rate through a fluid valve. The element may include a generally spherical metal housing encasing a cylindrical ceramic insert. The element may also include a cone-shaped metal housing encasing a cylindrical ceramic insert. The cylindrical ceramic insert defines a fluid passageway through the element. The element further includes a coupling mechanism disposed on the metal housing configured for securing a metal actuation shaft to the element. The coupling mechanism provides a high-strength element-to-shaft connection between the metal actuation shaft and a metal portion of the element. The present invention also encompasses a method of manufacturing the element.

Abstract: A method of fabricating a module having fluid flow channels in communication with a diaphragm valve using self-bondable polyimide sheets wherein the sheets are directly interfacially bonded to one another except in the region corresponding to the diaphragm valve without using an adhesive is disclosed.

Abstract: A method of manufacturing and testing a standardized fuel injector configuration accommodates multiple fuel injector customers. Initially, a fuel injector is molded, the fuel injector having an inlet end and an outlet end. Passage of fuel through the fuel injector is controlled between the inlet end and the outlet end. The electrical terminal geometry to be molded with the electrically operated fuel injector is selected, and electrical current flow for the fuel injector is generated through the electrical terminals. The selected electrical terminal geometry is accessible for connection to any of a plurality of different connectors, which are independently molded. Test processes are conducted on the fuel injector and, subsequently, an independently molded post electrical plug is installed, encompassing the electrical terminals.

Abstract: The present invention provides a carbon-carbon (C/C) composite valve structure useful for high temperature internal combustion engines comprising (a) a carbon-carbon (C/C) composite valve stem having a flared end and a non-flared end opposite the flared end; and (b) a carbon-carbon (C/C) composite valve head applied onto the flared end of the valve stem, wherein at least one of the carbon-carbon (C/C) composite valve stem and head is coated with a high temperature resistant coating.

Abstract: A rotary valve is provided with an elliptical valve disc that seats against a seal element operatively mounted in an elliptically shaped depression formed in the rigid annular portion of a seal cartridge structure carried by the valve body. Due to the elliptical shapes of the disc and corresponding seating structure, and a conical configuration of the disc periphery, sealing of the valve disc, the integrity of the seal, and the ability of the seal to completely stop the flow of fluid through the valve body are desirably improved. The centering of valve disc relative to the seal cartridge is facilitated by a specially designed disc mounting structure that eliminates any necessity of adjusting the disc along its rotational axis, and a one-piece actuator bracket is removably mounted to the valve body to substantially simplify and reduce the expense of operatively associating an actuator with the valve.

Abstract: Besides the conventional process steps of manufacturing a valve-seat body, forming a through opening inside the valve-seat body, forming a valve-seat as a frustoconical section of the through opening, and forming a guide area, the proposed method for manufacturing a valve seat for a fuel injector includes the simultaneous fine-machining of all guide sections in the guide area and the valve-seat area using a master ball.

Abstract: A fabrication method for an improved structure practical forged one-piece flange-type ball valve that consists of the forging the initial two blanks of the water inlet seat and the ball valve seat for a one-piece flange-type ball valve, based on the blueprints of conventional one-piece flange-type ball valves, with the water inlet seat having a left pipeline connection section already formed inside and the ball valve seat having a ball valve chamber, its contiguous water outlet port, and a right pipeline connection section already formed inside. To facilitate easier finishing, a shallower mating section is formed at the front end of the water inlet seat for contact with the ball valve chamber of the ball valve seat. A left water-tight gasket containment recess is then lathed in the mating section end surface of the water inlet seat and external threads are died along the outer sides of the mating section.