Abstract: A fluid circuit breaker includes a plurality of petals and a bias system attached to the plurality of petals to maintain the plurality of petals at a closed unobstructed flow condition below a predetermined flow velocity.

Abstract: A split valve apparatus for the control, charging, discharging and/or regulating the flow of powders, liquids, slurries and/or fluids. The valve has two valve portions complementarily shaped such that the first can sealingly engage with and co-operate with the second to allow the flow of material therethrough. Each valve portion comprises a housing, a valve seat and a valve closure member, which is movable between two positions.

Abstract: A method for operating a valve comprising a first valve part (1) having at least one opening (2, 5) formed therein and a second valve part (3) having at least one opening (4, 6) formed therein is disclosed. The first (1) and second (3) valve parts are adapted to perform relative movements, the relative position of the opening(s) (2, 5) of the first valve part (1) and the opening(s) (4, 6) of the second valve part (3) defining an opening degree of the valve by means of an overlapping area of an opening (2, 5) of the first valve part (1) and an opening (4, 6) of the second valve part (3).

Abstract: In a fluid transmission line, a valve comprising a housing that establishes a lumen for transmission of a fluid through said valve; a drive mechanism and a drive gear mounted in said housing to be selectively driven in a first or second rotational direction by said drive mechanism. The drive gear has a central throughhole and a plurality of pins around the central throughhole. A plurality of leaves are pivotally mounted on the pins, and oriented to extend radially inward into said central throughhole. A fixed extension has an annular aspect disposed in the drive gear, and has a plurality of engagement members disposed to operatively engage one of said leaves. The engagement members bias the leaves to close an orifice when said drive gear rotates in said first direction and to open the orifice when said drive gear rotates in said second direction. Each of the leaves maintains a substantially sealing engagement with each adjacent leaf throughout a range of motion of the leaves.

Abstract: A variable orifice for use in connection with a conduit designed to convey particulate material comprising a set of semi-circular plates mounted on respective concentric shafts so that they may be rotated in opposite directions between a first position in which they extend across the interior of the conduit for maximum flow resistance to a second folded condition where they are adjacent and parallel to one another to present minimum flow resistance. An actuator is connected through the concentric shafts to the plates and mounts on the outside of the conduit surface. The unit is operated by hand crank and has a position indicator. The size of the valve plates is such that, even when fully extended relative to one another and lying across the cross-section of the conduit, only about a 30% restriction is produced.

Abstract: An air conditioning system of the present invention for an automotive vehicle includes a housing having at least two sections connected by two side by side air passage. A blower device of the air conditioning system discharges air into the housing. An evaporator is disposed in one of the sections for taking heat from the air discharged from the blower device to produce cool air. A heater is disposed in the other section positioned downstream of the evaporator for adding heat to the cool air to produce warm air. First and second sliding valve plates mechanically communicating with a driving mechanism of the present invention are supported by the housing for selectively closing the two side by side air passages thereby regulating air flow of cool and warm air.

Abstract: The present invention refers to an air control device (1), in particular for a heating, ventilation and/or air conditioning installation for automotive vehicles, comprising a housing (3) having two apertures (4, 5). It comprises two dampers (6, 7) with at least one portion of sealing. Dampers (6, 7) have a lower part comprising a U-shaped section (22?, 22?) defining a groove (39) operating conjointly with a portion having an inverted U shape (46) of housing (3) to create another portion of sealing. Housing (3) has a lower part (30?, 30?) comprising a groove (47) operating conjointly with a rib (43) disposed on the spiral (13) whereon housing (3) is mounted to define a further portion of sealing.

Abstract: A particularly advantageous vacuum cleaner system has at least two filters and self-cleans its filters via back-flushing, without needing to stop normal operation to self-clean. Also, a self-cleaning valve assembly is provided for use in a vacuum cleaner. Also, a vacuum cleaner is provided that uses permanent, self-cleaning filters, and does not need disposable filters or filter bags, and advantageously can use inexpensive plastic bags. In another vacuum cleaner system, waste is collected in an ordinary plastic bag without any special preparation or modification of the bag being needed. Further, an inventive self-cleaning X-valve assembly cleans itself and is useable in the vacuum cleaner system.

Abstract: A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device.

Abstract: An HVAC (heating, ventilating and air conditioning) damper includes a series of pivotal damper blades that are opened by an air pressure differential across opposite sides of the damper. In some embodiments, a fan discharging against the damper blades provides the necessary air pressure to open the damper. To control how far the damper opens, an actuator moves a variable position abutment that obstructs the damper blades to limit how far they can pivot in the open direction. The position of the abutment is infinitely adjustable to provide the damper with infinite adjustment over a range of open positions. In some embodiments, the abutment applies a unidirectional torque to the damper blades regardless of whether the damper is opening or closing.

Abstract: A rotary shutter actuator comprising a retainer, a rotatable member, a plurality of shutters, and a dial. The rotatable member is supported by the retainer, and the plurality of shutters are swivelably coupled to the retainer. The dial has an opening and is operably connected to each of the shutters and the rotatable member. Thus, as the dial is rotated, the shutters move to and from a fully open and closed position. The dial also causes the rotatable member to rotate with respect to the retainer.

Abstract: The invention relates to an apparatus for controlling the distribution of particles in dust or granule form in one or a plurality of carrier gas streams. The invention further relates to the use of an apparatus in a conveying pipe. An advantageous adaptation of the volumetric flow within the individual flow cross sections is achieved with the invention, so that in particular no channeling can occur, which has favorable effects for a specified material flow rate or material flow rate control particularly in coal-fired power plants. The apparatus according to the invention is furthermore very simple in construction and requires few components.

Abstract: The description relates to a device for the regulation of the amount of a medium in a heating or cooling system, comprising a combined valve, which in one and the same valve housing includes one part for pressure difference regulation (2) and one part for flow limitation (3), the flow being limited in a stepless, adjustable way, i.e. the device obtaining an adjustable Kvs-value. Also, the chosen Kvs-value can be limited by a plunger, which always can operate with its complete stroke length.

Abstract: An iris arrangement has first and second annular carrier elements annular elements coaxially arranged and circumferentially interlocked with one another so as to be independently rotatable. A plurality of iris elements each have a first compliant beam element coupled at a first end thereof to the iris element and at a second end thereof to the first annular carrier element, and a second compliant beam element coupled at a first end thereof to the associated iris element and at a second end thereof to the second annular carrier element. Rotatory motion of the carrier elements relative to each other results in substantially radial displacement of each of the iris elements. The plurality of iris elements communicate with one another when disposed in a radially innermost position. A web covers a region between the plurality of iris elements and the circumference of the first and second annular elements.

Abstract: A device is created with an adjustable aperture or orifice using the iris shutter type mechanism to control the volumetric flow of fuel mixture or exhaust gas by movable blades or leaflets arranged inside a sealed enclosure which is operated by external actuators connected in series.

Abstract: A flow adjusting apparatus having a pair of discs can be used for a drilling or production choke or valve. A stationary disc fixedly positions in a flow passage and defines at least one first bore permitting fluid flow. A rotatable disc positions in the flow passage between the stationary disc and the distal end of a stem. The rotatable disc defines at least one second bore permitting fluid flow. Rotation of the rotatable disc adjusts relative orientation between the first and second bores and adjusts fluid flow through the first and second bores. The stationary disc has a greater length than the rotatable disc to control exiting fluid flow beyond the discs and reduce erosion. In addition, the rotatable disc's bore defines a tapered relief at the disc's front face to control inlet of fluid flow and reduce erosion.

Abstract: A double-disk slide valve, the shut-off plates of which are displaceable by means of an actuator rod and which is provided with a bridging pipe having two sealing rings that are in operative engagement with corresponding housing sealing seats of the slide valve housing when the slide valve is in the open position. At least one of the two housing sealing seats rests, by the action of a resilient element, under predetermined pressure against the sealing ring(s) associated with the bridging pipe when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) when the slide valve is in the closed position.

Abstract: A gas valve may include a valve body defining an upper valve seat region, and in some cases a lower valve seat region. A main valve that includes an upper main plate, and in some cases a lower main plate, may be disposed within the valve body. A control valve that includes an upper control plate, and in some cases, a lower control plate may be coaxially aligned with the main valve. The main valve may provide shut-off functionality while the control valve may provide flow control.

Abstract: The invention relates to a valve device, preferably for a line device or connecting device. Said valve device comprises a valve body that can be transferred from an open position to a closed position. Said valve body comprises movable sectored devices having sealing edges or sealing surfaces via which, in a closed position, a sealing contact of the sectored device to adjoining sealing edges or sealing surfaces can be established. The sectored devices can at least be in sections moved away in the radial direction from the centre axis when the valve body is transferred to the open position and release a flow area.

Abstract: The invention relates to an inflatable device comprising an electromechanical device and a self-sealing valve, and in particular, to any inflatable device that includes the assembly. In some embodiments, at least a portion of a fluid controller is coupled to and supported by an inflatable bladder of an inflatable device. The fluid controller may be located in a compartment, and the compartment may be within the profile of the bladder. The inflatable device may be a single bladder mattress or a dual bladder mattress. The inflatable device may include a heater or an articulation device. The inflatable device may be multi-positional device or have a storage compartment. The inflatable device may be configurable using one or more members such as a membrane or fasteners.

Abstract: An irrigation control valve has two movable members that can independently or in combination block the flow of water in a conduit, or be fully retracted of at some point in-between. A moisture sensitive element is arranged to be placed in contact with the soil and expands or retracts dependent on the moisture within soil adjacent the moisture sensitive element. The moisture sensitive element is connected or coupled to a moisture controlled member. Dependent on the moisture of the soil adjacent the moisture sensitive element, the moisture controlled member is moved further into the conduit with increasing moisture in the soil. The moisture controlled member and an electronically controlled member are located adjacent each other at the conduit. The electronically controlled member determines how far the moisture controlled member needs to move in order to fully block the flow of water in the conduit.

Abstract: An air passageway opening/closing device provided with a plurality of sheet members provided with openings and passageway blocking parts located at the two sides of these openings, wherein the lengths in a direction of door movement of the openings differ by predetermined amounts, when an adjacent smaller sheet member moves in the direction of door movement by a predetermined amount, the smaller sheet member and the adjacent larger sheet member move together, the opening ranges of two air passageways are determined by a position of movement of an opening of the smallest sheet member to which a driving force is added, and the blocking ranges of two air passageways are determined by superposition of the passageway blocking parts of the plurality of sheet members in a stepwise offset state.

Abstract: Apparatus to vary the effective spring rate of diaphragm actuators are described. An example spring assembly for use in a diaphragm actuator includes a first spring operatively coupled to a diaphragm plate and an actuator stem, and a second spring operatively coupled to the actuator stem and configured to be serially operative with the first spring. Additionally, a movable spring seat is disposed between the first and second springs.

Abstract: An active rinse shield designed to protect electrofill chemical baths from excessive dilution during rinse sprays on the semiconductor wafer. The shield uses overlapping blades to cover the bath, making a physical barrier between the bath chemistry and the wafer rinse water. The blades are interconnecting ribs that actuate around a common pivot axis. A linear mechanical actuator controls the blade movement, moving the top-most blade, which in turn, moves an adjacent lower blade. Each upper blade is interconnected to an adjacent lower blade by upper and lower ledges, a pivot boss and interlocking cut, and a curved ledge on each blade's body surface. The interconnecting features allow the blades to move one another out for extension or in for retraction. The interlocking blades are inclined above one another, forming grooves to redirect the rinse water away from the chemical bath.

Abstract: A gate valve for use in a supply conduit for airborne particulate coal being supplied to an input port of a multi-port combustion chamber. The gate valve comprises a circumferential support and a plurality of truncated sector-shaped valve elements which can move radially in and out relative to a common center between maximal blockage and minimal blockage positions. Air jets are provided for cleaning accumulated coal fines from the valve elements.

Abstract: A rotary control valve is provided. The valve includes a valve body having a first valve member with a first volute formed therein, wherein the first volute further includes a plurality of flow channels of varying diameter or a single flow channel having a generally smooth gradient from large to small diameter; and a second valve member in close proximity to or in direct contact with the first valve member with a second volute formed therein, wherein the second volute further includes a plurality of flow channels of varying diameter or a single flow channel having a generally smooth gradient from large to small diameter. The first and second volutes cooperate with one another to form an orifice between the first and second valve members, and the diameter of the orifice is variable based on the positions of the individual flow channels relative to one another.

Abstract: A balanced valve for controlling the flow of fluids in conduits, the valve comprising: (a) a casing formed of sidewalls and a casing top and bottom, defining an interior; (b) a fluid inlet in a sidewall of the casing and a fluid outlet in an opposite sidewall of said casing; (c) four similar inner walls positioned in square configuration within the interior and configured to define together with a chamber top and bottom, an enclosed central chamber, each wall having a fluid port of similar size; (d) a fluid channel within the interior of the casing, commencing at the fluid inlet and branching to provide equal flows of fluid to fluid ports in opposite inner walls and a fluid channel extending from the fluid outlet and extending within the interior, branching to provide equal flows of fluid to the fluid ports of a different pair of opposite inner walls; (e) a frame linearly movable within said central chamber between an open and a closed position; and (f) four gates supported in square configuration on said fra

Abstract: The invention relates to a roller belt cassette for use in a control device (1) serving to control airflows in motor vehicles, comprised of a roller belt subassembly having a roller louver, which is formed by a roller belt (5), and at least two shafts (6, 7) of which one is a drive shaft (6) and the other is a return shaft (7). The roller belt (5) is formed by an endless belt or is provided in the form of an endless belt. The roller belt cassette can be mounted inside airflow ducts of a heating and/or air-conditioning system for motor vehicles.

Abstract: A covering device for a drain includes a first cover and a second cover. The first cover defines a plurality of openings. The second cover defines a plurality of openings corresponding to the openings of the first cover. The second cover is rotationally connected to the first cover. In a position, the openings of the second cover are aligned with the openings of the first cover in order to open the drain. In another position, the first cover blocks the openings of the second cover while the second cover blocks the openings of the first cover in order to close the drain.

Abstract: An iris valve for controlling the flow of bulk solid materials includes a flexible cylindrical sleeve, a control ring, and a polymeric isolator disc, all sandwiched between upper and lower body members. Rotating the control ring twists the flexible sleeve in an iris pattern to close an opening through the valve. Clamp bands attached to the upper body member and control ring include a machined helical pattern to securely grip the ends of the flexible sleeve, and a threaded handle locks the control ring in place against the body members.

Abstract: Bi-leaved valve apparatus for controlling bulk material flow from a bulk material metering apparatus. A bi-leaved valve apparatus comprises a cylindrical flow tube defining an axial material passageway, an outlet and a flow tube actuation surface. A valve support is mounted about the flow tube adjacent the flow tube outlet such that the valve support and flow tube are relatively rotatable. A pair of leaves are attached to the valve support and are sized to seal the flow tube outlet. The leaves are movable between open and closed orientations and have a valve actuation surface adjacent the flow tube actuation surface. An actuator causes relative rotational movement of the flow tube and valve support such that rotation to a first relative position causes the flow tube and valve actuation surfaces to open the leaves and rotation to a further relative position causes the leaves to close. The valve apparatus may be used with bulk material metering machines such as vertical form/fill/seal packaging machines.

Abstract: A regulating vacuum valve comprises a valve housing with a through-channel, first and second valve plates which lie in adjacent and parallel planes and are mounted so as to be adjustable in their planes and can be moved into the through-channel from different sides proceeding from an open position in which they lie laterally adjacent to the through-channel to form a through-opening through the valve, the size of the through-opening being adjustable; a seal connection piece which is supported so as to be displaceable in the through-channel and is sealed relative to the valve housing, wherein, in order to provide a sealed state of the valve, the first valve plate is movable into a position in which it completely cover the through-channel and in which the seal connection piece is adjustable to the first valve plate and is accordingly sealed relative to the first valve plate by at least one sealing ring.

Abstract: A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in overlying relationship and slidably move relative to one another by a mechanical mechanism. A plurality of flanges ride on a stepped edge portion to cause fanning of the flanges across the aperture to selectively occlude the aperture or a portion thereof.

Abstract: An apparatus for controlling a fluid discharge through an opening in a conduit includes a conduit section, conduit inlet, conduit interior, conduit exterior, and a conduit outlet or opening having a continuously curved perimeter surface with oppositely disposed concave sections and convex sections that are continuous. Also, first and second curved gate members are rotatably mounted and are axially slidably lockably engaged to the conduit exterior including structure to move the gate members symmetrically from a closed position to an open position remaining adjacent to the outlet, the gate members in the closed position are adjacent to the outlet and are adjacent to each other. In addition, fluid sealing between the outlet and the gate members, between the gate members, and between the gate members and the outlet, when the gate members are in the closed position. The gate members are operational to control the fluid discharge through the outlet.

Abstract: A butterfly valve system has an air cylinder with an internal passageway with an axis. An air control assembly includes a plurality of similarly configured plates positioned within the passageway with shafts mounted for independent oscillation and supporting the plates. A rocker arm is secured to each shaft to oscillate the rocker arms and shafts and plates independently of each other whereby the flow of air may be selectively controlled to generate a vortex flow by a user manipulating the drivers to open and close four quarter quadrants of the cross section of the cylindrical passageway.

Abstract: A throttle body for an internal combustion engine has a housing, a first plate carried by the housing for linear reciprocation between a first position and a second position in response to movement of a throttle member, and a second plate carried by the housing for linear reciprocation between a first position and a second position in response to the movement of the fist plate. The first plate and second plates define at least in part an opening through the throttle body. The opening provides a variable flow area that increases as the first plate and the second plate move from their first positions toward their second positions and decreases as the first and second plates move from their second positions toward their first positions. As the first and second plates move between their first and second positions, the flow area of the opening is continually varied.

Abstract: A diaphragmed air valve system for an automotive engine is provided which is designed for the purpose of keeping intact the shape as well as the mass of an air flow going through it. This diaphragmed air valve system includes a cylindrical air inlet having a valve opening covered by a number of plates of specific type and arrangement. The rate of air flowing into the engine is dictated by the diameter of the valve opening defined by the specific arrangement and type of the plates.

Abstract: A process reducing the side opening and closing time of a valve. The process uses a valve for mounting in an intake port of a reciprocating engine upstream from a charge changing valve, which valve contains a valve element operating in conjunction with the inner wall of the intake port, and may be moved back and forth between a closed position and an open position. The valve in the closed position blocks passage of fluid through the port and when in the open position, clears such passage. The valve is characterized in that the inner wall of the port and the valve element are of a design such that when the valve element is moved from its closed position the opening cross-section initially does not increase at all or increases only slowly and then increases rapidly and when the valve element is moved from its open position the opening cross-section initially does not decrease at all or decreases only slowly and then decreases rapidly.

Abstract: A damper system with a sealing plug, which incorporates an air flow monitoring system. The damper system utilizes current designs of the iris damper and incorporates a sealing plug positioned in the open circular cross-section of the iris damper. One version of the sealing plug incorporates a sealing groove in the sealing plug, while another version employs different types of sealing gaskets. The sealing groove and sealing gaskets provide a positive seal about the sealing plug when the iris blades are in the closed position. An additional feature that can be incorporated into the sealing plug is an air flow monitoring system. The sealing plug can include a chamber where total pressure of the air flow passing the sealing plug can be measured.

Abstract: A valve for the accurate control of fluid flowing through the valve. The valve has a valve body and a flow control mechanism. The valve body is a two-part body having a fluid flow section and a valve adjustment section. The fluid flow section has a fluid flow cavity. The fluid flow cavity further includes a flow control orifice area, which flow control surface being smaller in cross-sectional area than the fluid flow cavity. The flow control mechanism is able to vary the length of its major axis via a force provided by the valve actuator. As the major axis of the flow control mechanism decreases, the minor axis of the flow control mechanism increases at an amplified rate, said increase in the minor axis of the flow control mechanism accomplishes flow control and in combination with the valve actuator, flow control and fluid modulation.

Abstract: A safety valve of the type where two valve elements (4) in a bore (3) can be moved towards each other for closing a flow path (2). Each valve element comprises two parts (10, 20), each of which is connected to an actuator (5, 6), thus enabling them to be moved independently of each other.

Abstract: A variable bore ram packer including a ram body, a top seal and a packer member designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. A side retainer plate is molded into the edges of the packer member. The side retainer plate includes a depending lip portion to minimize extrusion of the elastomeric material between the packer member and the guideways of the blowout preventer.

Abstract: A safety kit 10 is provided for use with a flexible hose 2 for interconnecting a portable tank 14 with a another tank 12 to transmit fluids between the tanks. The safety kit includes a control housing 5 adapted for securing to one end of the hose, and a cable support housing 36 for securing to the opposing end of the hose. A valve member 20 is moveable relative to a seating surface for opening and closing flow through the control housing. A cable 18 is provided for positioning within the flexible hose 2. The cable may be in compression in one embodiment and in tension in other embodiments. If in compression, the cable support housing includes a cable loading mechanism 210, 250. When the cable is in tension, the trigger moves in response to movement of the cable to close off flow to the flexible hose.

Abstract: A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in overlying relationship and slidably move relative to one another by a mechanical mechanism. A plurality of flanges ride on a stepped edge portion to cause fanning of the flanges across the aperture to selectively occlude the aperture or a portion thereof.

Abstract: A dispensing device for a powder filling machine comprises a duct with at least one dispensing outlet from which a powder material is directed into a container positioned beneath. The outlet incorporates an iris diaphragm with a plurality of occluding elements capable of movement between an operating condition in which the outlet is closed, disallowing passage of the powder material, and a non-operating condition in which the outlet is open, with the occluding elements compassing a flow section aligned concentrically with the duct and allowing the passage of the powder material.

Abstract: A high frequency oscillator (HFO) ventilator has an oscillator unit for alternately supplying a volume of gas (“oscillator volume”) to and removing the oscillator volume from a proximal end of a gas conduit at a predetermined high frequency. The gas conduit has a proximal end connectable to the oscillator unit and a distal end connectable with the patient's airways. Located between the proximal end and the distal end is an inlet for receiving a continuous flow of a bias gas from a supply, and an outlet. The ventilator further has a flow controller adapted to apportion, between the distal end of the conduit and the outlet, the volume of gas supplied by the oscillator unit to establish a predetermined inspiration tidal volume for delivery to the patient's airways independent of the oscillator volume.

Abstract: A one way valve assembly has an inlet and an outlet, the inlet forming one end of a tubular passageway, a valve member which is slideable along the tubular passageway between a closed position where fluid is unable to flow through the valve assembly, and an open position, the valve member having an outer end and an inner end, and biasing means to bias the valve member to the closed position, characterized in that when the valve member is in the closed position, the outer end is substantially at the inlet of the valve assembly to close of the tubular passageway and to allow the inlet area to be sterilized.

Abstract: The linear controlling of the pressure of a vacuum chamber, such as a plasma etch chamber used in semiconductor processing, is disclosed. A plasma etch chamber pressure control mechanism includes an aperture diaphragm and a number of aperture blades rotatably mounted on the aperture diaphragm. The diaphragm defines a contractible and expandable aperture for controlling the pressure of the chamber. Rotation of the aperture blades in a first direction contracts the aperture by causing movement of the blades towards the aperture, increasing the pressure of the chamber. Rotation of the aperture blades in a second direction opposite to the first direction expands the aperture by causing movement of the blades away from the aperture, decreasing the pressure of the chamber.

Abstract: The adjustable vibration valve of the invention is a simple but effective device to regulate the flow of a fluid when the invention is vibrated by an outside source, where the adjustable vibration valve comprises a flow chamber with an inlet port and an outlet port, an adjustable valve seat between the lower interior volume of the flow chamber and the outlet port, and a selectively sized control ball which remains on the adjustable valve seat in moveable engagement with the adjustable valve seat, such that said control ball is stable relative to said adjustable valve seat when the adjustable vibration valve is at rest, forming a seal, but which becomes disengaged from the adjustable valve seat when the vibration valve device is vibrated by an outside source, permitting fluid present in the flow chamber to flow past the selectively sized control ball, through the adjusted inner opening of the adjustable valve seat, and then through the outlet port.

Abstract: A diaphragmed air valve system for an automotive engine is provided which is designed for the purpose of keeping intact the shape as well as the mass of an air flow going through it. This diaphragmed air valve system includes a cylindrical air inlet having a valve opening covered by a number of plates of specific type and arrangement. The rate of air flowing into the engine is dictated by the diameter of the valve opening defined by the specific arrangement and type of the plates.