Abstract: Method of and apparatus for use in the depuration of bivalves requires an underground tank for a substantial volume of seawater and is divided into upper and lower sections by a transverse filter. A series of treatment tanks are provided for batches of bivalves dug in a polluted area. Water is pumped continuously from the lower section of the underground tank to the treatment tanks after being filtered and disinfected by ultraviolet light and is returned to the upper section of the underground tank after passing through an open filter. All above ground portions of the apparatus are shielded against sunlight. The circulating water is continuously aerated. Sources of aerobic bacteria are added to each filter. The temperature, salinity, dissolved oxygen and pH of the seawater is maintained at levels appropriate for the bivalves.

Abstract: A rotary ball for a fluid control valve controlling a fluid stream with a spherical ball control member and a spherically shaped dome containing a plurality of apertures at the ball inlet bore end. The fluid stream is dissipated and broken up into smaller streams by being forced through the apertured dome. One or more apertured discs can be mounted in the bore to obtain the desired valve capacity and noise attenuation. A domed apertured plate may also be used at the bore outlet end. Substantially constant noise attenuation is obtained over the full travel of the valve from the initial open position to the fully opened position.

Abstract: The invention provides a flow control system well suited for use in intravenous fluid delivery systems comprising a flow restrictor wafer having one or more flow limiting flow restrictor paths formed thereon. The system provides fixed flow rate control. The system also provides means for selectively orienting at least two flow restrictor paths relative to the main fluid passage to varying the flow rate.

Abstract: Valve top, in particular for water fittings, with a spindle rotatable in a head-piece and a sealed grease chamber in the head-piece. The lower end of the spindle is mounted and supported in the head-piece by means of a bearing element of plastic, the bearing and supporting faces being arranged inside the sealed grease chamber. Preferably the bearing element is made in one piece with a damping element of plastic.

Abstract: A valve provided with sound-reducing means, which sound-reducing means comprise a porous member.

Abstract: A hydraulic breather for a valve body in an automatic transmission, in which is disposed hydraulic equipment, for example, linear solenoid valves. The breather separates oil in the oil pan from the oil in the hydraulilc equipment when the automatic transmission is at work while allowing clean oil from the oil pan to enter the hydraulic equipment when the automatic transmission is at rest. The breating hole is provided in the form of an oil passage extending from hydraulic equipment within the valve body and includes an open-end section disposed in an upper part of the valve body. The open-end is located at a point higher than the working oil level in the automatic transmission. When the automatic transmission is at work, oil in the oil pan is used to lubricate, so the oil level is at its lowest level and the open-end section is above that oil level and thereby connects with air space in the valve body.

Abstract: An electrically operated refrigerant expansion valve has a refrigerant metering orifice extending therethrough. The valve includes a tapered opening extending thereinto, generally transverse to and intersecting the refrigerant metering orifice. A tapered valve member extends into the tapered opening to cooperate with the tapered opening to control the flow of refrigerant through the valve. The cooperation of the tapered valve member and the tapered opening is such that the flow through the valve body is completely shut off when the tapered valve member is fully inserted into the tapered opening. An electrically actuatable means is mounted on the valve for imparting axial movement to the tapered valve member into and out of the tapered opening.

Abstract: A control valve, which consists of a body (1) provided with flow-through channels (2, 3) and of a closing member (5) arranged rotatably in the body in an expansion (4) of the channel, the rotation shaft of which is eccentric in relation to the sealing surfaces of the closing member and the seal of the body. In an open position of the valve a circular flow is formed around the closing member between a wall of the body and the closing member (5), the main flow passage of which circular flow is located in a channel between the inner surface of the body and the upstream edge (16) of the closing member. The closing member (5) has an extension (17) in its upstream edge (16) in the open position, which extension in an initial phase of the opening reduces the cross-sectional area of the main flow passage.

Abstract: A trim design (40) comprises a housing (42) having a generally cylindrical passage (44) passing therethrough. Disposed between an inlet (50) and an outlet (48) is a stepped plug (52) having an axial length. Telescopically receiving the stepped plug (52) is a stepped first cage (56). A second cage (82) having apertures (84) therethrough is positioned between the outlet (48) and the first cage (56). The first cage (56) has axial channels (80) for the passage of fluid through the trim design (40). As the plug (52) is moved from a closed position to an opened position, fluid enters a tortuous path formed by the stepped plug (52), the first cage (56) and the axial channels (80) to produce a desired flow capacity change. Flow path decreases in tortuosity with increasing plug travel thereby increasing the flow capacity.

Abstract: An outer wall member, such as the wall of a tube, connectable to or integral with the pipe, has an opening in communication with the exterior of the pipe. An inner member is fixedly positioned against the inside of the outer member for separating the opening from the fluid path through the pipe. The inner member has an inner surface defining at least a portion of an inner chamber in communication with the pipe fluid path. The inner and outer members define a labyrinth having an effective cross-sectional area, an inlet end for receiving pressurized fluid from the pipe, and an outlet end in communication with the pipe opening for emitting fluid. A plurality of channels couple intermediate portions of the labyrinth directly to the opening, thereby bypassing respective parts of the labyrinth.

Abstract: An improved irrigation valve has a valve housing with a tubular passage and an inlet opening in one side. The valve housing can be attached to an opening in an irrigation pipe so that water from the pipe can flow into the housing and through the inlet opening. A tubular valve in the tubular passage has a flow opening in its wall and an open outlet end, the valve member being rotatable in the passage to align the flow opening with the inlet opening to different degrees to control the flow of water through the valve from the pipe to the outlet. A baffle extends along an inside wall of the valve member to interfere with circular flow of water within said valve member to thereby reduce a fan effect at the outlet which such circular flow causes, the fan being a cause of erosion of the irrigated soil. Annular and axial ribs between the valve member and tubular passage reduce the ingress of dirt to reduce maintenance of the valve.

Abstract: The flow restrictor is a unitary one-piece element that can be fabricated from either metal or plastic by casting or molding. In use, it is press fitted into a bore in a solenoid valve body to provide a certain restrictive effect. It has a circular cylindrical central core that has a series of flanges that are axially spaced by gaps. Each flange has a circular outer edge that is interrupted by at least one axially extending through-notch. These notches are arranged to provide a tortuous path for the fluid flow, and sized to create a desired restriction. The restrictor provides two parallel flow paths, one, the tortuous path just described, and two, a through-hole through the core of the restrictor.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: The invention relates to an antinoise baffle especially for screw type valves having a first ceramic disk (13) fixed in the body with at least one hole (13a) for the flow of water, a second ceramic disk (14) resting against and rotating on the first with at least one lateral slot (14a) positionable in correspondence to and away from the one of the first disk following a quarter or half rotation of the second disk. At least one net (21) is placed and blocked of the second disk (14) and has at least one wing which extends towards the first disk near to one or each lateral slot (14a) or said second disk, the wings extending between said slot and the opening (20) for the outlet of water.

Abstract: A ball valve having improved inherent rangeability comprises a floating ball of conventional design that is rotatable through substantially 90.degree. between a pair of seats respectively located adjacent the upstream and downstream sides of the valve within a valve housing. At least one of the seats is a one-piece lubricant-impregnated metal seat configured to provide a concave central surface portion that makes full-face direct sealing contact with the ball, and which defines multiple spaced holes that extend through the seat to increase the fluid-to-metal contact of fluid passing through the seat thereby to reduce the pressure between the upstream and downstream sides of the valve. The pattern of holes may be such as to cause the valve to exhibit an equal percentage of flow characteristic for at least a portion of the ball rotation and/or a linear flow characteristic for at least a portion of the ball rotation.

Abstract: A rotary control valve for controlling fluid flow through a conduit comprising at least one fixed trim element and a rotatable plug element located in the conduit in closely abutting position. The trim element and the plug element have a plurality of ducts extending therethrough. The plug element has at least one transverse duct communicating between at least two of the plurality of ducts. The opening of the ducts on the inside face of the trim registers with the opening of the ducts on a face of the plug.

Abstract: A drain plug is disclosed for use with hollow structures which prevents the nsertion of an external probe into the structure internal cavity.

Abstract: The invention provides a flow control system well suited for use in intravenous fluid delivery systems comprising a flow restrictor wafer having one or more flow limiting flow restrictor paths formed thereon. The system provides fixed flow rate control. The system also provides means for selectively orienting at least two flow restrictor paths relative to the main fluid passage to varying the flow rate.

Abstract: The invention provides a two-part casing for a multistage valve, itself configured for noise-reduction. Further noise reduction is achieved by complaint suspension of the valve in a two-part casing wherein separable parts of the casing define a cavity for containing nested stages of the valve. Provision is made for selective adjustment of compressional loading of the compliant suspension.

Abstract: A valve comprising a valve body (10) having inlet (14) and outlet (18) passages communicating with a valve chamber (15). A valve element (90) is movable through the valve chamber adjacent a valve seat (92) and a flow deflector ring (104) having a central opening which has discontinuous deflector surfaces (106) around a central opening separated by spaced grooves (108) arranger to disrupt flow a stream of fluid flowing between the valve element and the valve seat to prevent the formation of a vena contracta downstream from the valve seat. A plurality of sleeves (34,36) having cylindrical walls divide the valve chamber to form an entrance section (15a) and an outlet section 15b).

Abstract: The invention provides a flow control system well suited for use in intravenous fluid delivery systems comprising a flow restrictor wafer having one or more flow limiting flow restrictor paths formed thereon. The system provides fixed flow rate control. The system also provides means for selectively orienting at least two flow restrictor paths relative to the main fluid passage to varying the flow rate.

Abstract: Control valves suitable for use in nuclear power plants are provided which include a muffler having a cylindrical wall with a plurality of substantially circular apertures spaced substantially equilaterally from one another within a portion of the wall. The apertures can be disposed in a repetitive helical pattern of a substantially equilateral triangle for maintaining consistenet ligament widths in all directions for providing uniform structural strength to the valve.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: A gas inlet valve assembly for inflatable boats includes valve structure having at least one inlet opening and at least one outlet opening. A valve member is positionable between the inlet opening and the outlet opening to control the flow of gas through the valve. A gas dispersion member, preferably made of a porous material, is provided with the valve and is substantially adjacent to the valve outlet opening, such that gas emanating from the valve outlet opening will be thrust into contact with the gas dispersion member. The expanding, cold gas jet is dispersed by the porous material of the gas dispersion member. Direct contact between the cold gas jet and raft surfaces, together with freezing and cracking associated therewith, will thereby be substantially prevented. In a preferred embodiment, a pluraity of radially-disposed outlet valve openings are provided, and the gas dispersion member is substantially annular.

Abstract: A single handle mixer valve with hard material plates, wherein a fixed member forming a delivery connection for mixed water projects up to the level of the movable plate of the valve, whose cavity forming the duct for water passage encircles the delivery connection by engaging the same, in order to offer a guide for the swinging displacements of the movable plate, while the delivery connection acts as a fulcrum therefor. The cavity of the plate may be blind or it may tranverse right through the plate, which in this latter case sealingly cooperates with a control head which closes the cavity. Preferably the delivery connection is a part of a supporting member for the fixed plate of the valve; a member of a wear resistant material having a low friction coefficient is inserted within the cavity of the movable plate; and some portions of this latter member, the control head or the movable plate itself are shaped so as to exert a preclosure action.

Abstract: A water outlet fitting has a housing that includes first and second housing portions with a water outlet passage opening to the water inlet passage at an angle with a sound damper insert extended into part of the outlet passage in the first housing portion. The insert includes a sealing member removable clamped between the housing portions and is connected through a filter to a base located in the closed terminal end portion of the outlet passage axially opposite the opening of the inlet passage to the outlet passage from the sealing member. A generally conical, resilient body has its axially lower end mounted to the base and surround by the filter to form a generally conical air cushion opening to the closed terminal end of the outlet passage and be removable from the outlet passage with the removal of the sealing element.

Abstract: A restrictor is mounted within a passage of a control valve. The restrictor includes an annular disc having openings for the passage of fluid therethrough. The restrictor also includes a conical element coaxial with the annular disc. The restrictor limits the maximum discharge rate of fluid through the passage of the control valve.

Abstract: A pico fuel injector valve (10) adapted to be received in an injector socket provided in an air intake manifold (12) of an internal combustion engine having an integral fuel rail (14). The fuel injector valve has a magnetically permeable cylindrical housing (26) having radial inlet ports (24) and an armature guide bore (32). A valve seat member (40) having an outlet port and a valve seat (48) is attached to the end of the cylindrical housing (26) having the guide bore. An orifice plate (56) having a calibrated orifice is disposed in an orifice plate recess (50) provided in the face of the valve seat member (40). A stator (76) disposed in the cylindrical housing has an axially disposed pole member (78) and a radial flange (80) attached to the other end of the cylindrical housing. A solenoid coil is wound directly around the pole member (78).

Abstract: A single-handle sanitary valve, of the type having valve means including a movable control disc mounted in face-to-face seating contact with a stationary valve seat, is disclosed. The valve seat disc includes temperature attentuating means operatively coupled between the hot and cold water inlet openings of the stationary valve seat disc and the hot and cold water supply conduits so that when the mixing valve is in its operative mode, a relatively large movement of the handle produces only a relatively small change in mixed water temperature, thereby achieving a greater so-called comfort zone.

Abstract: Programmable pressure reducing apparatus for throttling fluids under high energy in which standardized parts can be stacked and nested to achieve a wide range of restriction and expansion points interposed in tortuous fluid flow paths which divide and recombine the fluid a plurality of times to dissipate high energy without incurring cavitation.

Abstract: A control valve has a plurality of internal flow channels operative for reducing the pressure and attenuating the noise of pressurized fluids being conveyed along a pipe line. An entrance well within the valve minimizes excess turbulence.

Abstract: A dual stream thin edge orifice disk is defined as a disk having a pair of orifices positioned to direct the flow of fluid from the interior portion of a valve into two different streams. The dual streams may be parallel or typically diverge at an angle for directing the stream to two adjacent engine valves in the situation wherein the valve is an electromagnetic fuel injector for an internal combustion engine. To have the dual streams flow in a direction that is not parallel, the area of the disk surrounding the dual orifices is embossed and the orifices are positioned along the sides of the embossment between the base and the apex thereof. The manufacturing of the accurately sized orifices in the disk is accomplished by means of a progressive die. One of the stations of the die provides a coining operation on the orifice. Such coining operation is adjustable by means of a micrometer adjustment.

Abstract: A method and apparatus for reducing the intensity of the sound that accompanies a rapid decompression in a pressurized hydraulic system such as that of an injection molding machine. The apparatus includes a reduced area valve that interconnects the high pressure system with a low pressure system, with the valve connected with a tubular muffler so that high pressure fluid is initially released through the valve and into the muffler. The muffler includes a plurality of spaced apertures that face a rigid structural surface so that the high pressure fluid passing through the muffler issues from the several apertures and impinges on the rigid structure to dissipate the pressure shock accompanying decompression, and thereby modulate the intensity of the sound of decompression.

Abstract: The invention contemplates a valve construction which provides a radially stacked succession of mutually fitted concentric annuli fitted to an inner tubular member which is open at one end for accommodating inlet fluid flow and which is adapted along its bore and at the opposite end to guide a poppet member that is axially positionable in the bore. The tubular member has a circumferentially and axially distributed plurality of like radial passages adapted to be opened and closed in accordance with the guided position of the poppet member. Progressively increasing pluralities of such radial passages characterize each successive annulus, and all annuli are circumferentially channeled to define a manifolded relation between the plural passage discharges from one annulus and the plural passage inlets of the next annulus. Outlet or downstream flow from the valve is taken from a circumferential manifold around the outermost multiple-ported annulus.

Abstract: This invention relates to a process and apparatus for supplying additives at very low, exactly controlled rates to a liquid or gaseous fluid by means of a rate control element consisting of a highly porous sintered material. Such an apparatus is simple in structure and can be used for a reliable supply at very low rates, which are exactly controlled.

Abstract: A gas silencing system for controlled sound attenuation of the exhaust gas in a motor vehicle comprises a sound attenuation muffler for exhaust gases. The system also includes means providing a bypass passage for gas to flow around at least part of the muffler. Bypass control valve is provided to allow selective regulation of the flow of exhaust through the muffler and the pass-pipe. The bypass control valve is responsive to a modulated pressure signal controlled by the driver of the vehicle. The invention also includes circuits for visually indicating the amount of bypass flow and the sound level of gas leaving the system.

Abstract: An improved faucet valve assembly adapted for alleviating the speed and turbulence of the water flow conducted thereinto under pressure so that operational noise of the faucet can be effectively reduced to a minimum. A valve jacket is provided with 4 spaced parallel grooves on the inner wall at the bottom end thereof for permitting a ceramic stator disk to be selectively engaged therewith in several different positions, thereby the faucet can be selectively operated in either clockwise or counterclockwise direction. A flow buffer disk having a plurality of vertical protrusions is used to alleviate the turbulence of the water flow so to reduce the operational noise; a seal ring having a metallic filter net is mounted at the bottom of the valve jacket for further effecting screen and noise reduction purpose.

Abstract: A two piece aspirator is constructed to be fitted within a fitting such that an annular clearance is provided between the bore that has two supply inlets and a depending cylindrical section of the aspirator body. A venturi cap member is snap fitted onto the aspirator body and has an outer periphery axially spaced from the end of the cylindrical section to provide an annular opening thereabout which is in communication with a passage through the aspirator body. The venturi or cap has a radial section which spans most of the interior of the cylindrical section and has a frusto-conical section which is complementary to a tapered end of the cylindrical section to provide for a radially extending section of the passageway leading to the annular opening.

Abstract: A master brake cylinder including a re-aspiration valve which is disposed as a central valve in pistons of the master brake cylinder. The re-aspiration valve has a porous body, comprising porous metal, which forms a flat valve seat at one end. The sealing body of the re-aspiration valve is raised gently from the valve seat even at high ambient pressure, which makes a re-aspiration valve embodied in this way particularly suitable for use in master brake cylinders of brake systems having slip control. Because the porous body comprises porous metal which differs in length from its wall surface at one end to its axis to form a conical void space. The porous body has an axial flow resistance that decreases from the outside wall inward to its axis.

Abstract: The invention relates to a valve assembly for adjusting a fluid flow comprising a housing (1) provided with an inlet (2) and an outlet (3) for fluid and a spherical body (4) rotatably arranged in the valve housing (1) between the inlet and outlet (2, 3) and mounted sealingly against the valve housing (1), the valve body being provided with fluid flow passages (8-10; 14, 15), and an annular space (5) formed between the valve housing (1) and the valve body (4), the flow passages (8-10; 14, 15) ending in the space (5) when the valve is closed and in the inlet and outlet (2, 3) when the valve is fully open. A reduced risk of cavitation and a high sound level in high pressure conditions are obtained by the invention.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: Reed valve mechanism for use in the fuel/air supply system of an internal combustion engine, the mechanism including passages, ports and reed valves, all of which are arranged to minimize unnecessary fluctuations of the flow velocity of the fuel/air being delivered to and into the cylinder of an engine and also minimize localized turbulence in the flow path and thereby increase the power output of the engine.

Abstract: In a lubricating pump for an internal combustion engine, or the like, wherein discharge pressure is regulated by diverting a portion of the discharge through a separate orifice back to the sump, means defining a diffuser disposed over the separate orifice having a plurality of openings therein in order to break up and diffuse the flow through said orfice to thereby prevent foaming of the lubricating discharge to the sump.

Abstract: A valve comprising a valve body (10) having inlet (14 ) and outlet (18) passages communicating with a valve chamber (15). A valve element (90) is movable through the valve chamber adjacent a valve seat (92) and a flow deflector ring (104) having a central opening which has discontinuous deflector surfaces (106) around a central opening separated by spaced grooves (108) arranger to disrupt flow a stream of fluid flowing between the valve element and the valve seat to prevent the formation of a vena contracta downstream from the valve seat. A plurality of sleeves (34,36) having cylindrical walls divide the valve chamber to form an entrance section (15a) and an outlet section (15b).

Abstract: The mixing valve includes a fixed valve plate of hard material provided with passage openings communicating with two supply pipes, a plastic slide connected to a control mechanism and sliding against a control guide ring, and at least a movable disk of hard material fixed to the slide and having openings therethrough cooperating with the passage openings of the fixed plate so as to regulate the delivered water flow and the mixing ratio of the liquids fed in the faucet. The slide has a cavity where water is collected and at least an outlet opening facing the guide ring. The guide ring has a window facing the outlet opening of the slide and a section of slots and blades arranged like comb teeth. The slots extend themselves from the above-mentioned window toward a space surrounding the slide and communicating with a spout connection. The slots are positioned to be at least partially covered by the slide when the slide is next to the closed position by thus producing a total or partial closure device.

Abstract: A cartridge assembly for converting a single-handle faucet from a ball-type valve to a cooperating plate valve. The cartridge includes an outer body member (10) having one fixed valve plate (16) and one movable valve plate (19) and lever means (23) for controlling the relative motions of the plates. The body (10) has a substantially cylindrical upper portion and a lower portion (11) defined by inclined, semi-spherical surfaces. A pair of converging inlet passageways (12) communicate with throughbores (17) formed in the fixed plate (16) to control fluid flow through the assembly and to an outlet (7). The cartridge is designed to be introduced into the chamber (2, 3) of a faucet valve body (1) normally utilized with a ball-type valving member without requiring alteration of the faucet valve body (1) to thereby introduce flow regulation members composed of flat valve plates (16, 19) manufactured from hard, wear-resistant materials.

Abstract: Liquid flow through a passage (9) in a body member (7) is controlled by a relatively movable poppet valve member (8). A frusto-conical first guide surface (11) on the poppet valve (8) merges smoothly with a second guide surface (12 and 13) which, in cross-section, has part-circulr portion (12) and an outlet end (13). Liquid passing through an aperture (10) between the body member (7) and the poppet valve member (8) flows along the first guide surface (11) and the second guide surface (12 and 13) and adopts a toroidal vortex flow pattern and this controls the collapse of those bubbles which form as a result of cavitation so as to diminish audible and inaudible vibrations.

Abstract: A metal diaphragm valve in which the interior of a valve casing is divided, by means of a metal diaphragm, thereby defining a valve chamber. Inlet hole and outlet hole are connected to the valve chamber. A valve seat is provided between the inlet and outlet holes, inside the valve chamber. A valve disk adapted to rest on the valve seat, is formed integrally with the diaphragm. The valve disk is driven by a drive unit disposed outside of the valve chamber, to open or close the valve.

Abstract: A thermal modulating control valve for providing bleed air for aircraft anti-icing purposes includes a valve chamber with an inlet for high temperature bleed air and an outlet for temperature modulated bleed air for aircraft systems. A modular valve mechanism is mounted in a chamber for regulating the flow of hot bleed air to the outlet in response to the temperature of the supply. The valve includes a first wall section having a plurality of spaced apart flow orifices or openings in one face and fixedly secured adjacent the inlet end of the chamber, and a second confronting wall section having a plurality of spaced apart flow orifices or openings provided to directly confront the orifices in the first wall section. The wall sections are movable relative to one another in response to the temperature of the bleed air at the inlet end so as to displace the respective sets of flow orifices in and out of registry for controlling the flow of bleed air supplied to the outlet of the valve.

Abstract: A low-noise plug valve is formed with a plug in which one side wall of the plug is a grid defined by a plurality of small openings therethrough, which openings lead from the through passage of the plug to a region outside the plug and which grid is movable into partial flow-blocking relation with respect to the valve body outlet, in partially open positions of the plug. The grid creates a back pressure which suppresses the flashing and the formation of cavitation bubbles. The grid openings, in the partially open position of the plug, are in substantial alignment with the direction of flow.