Abstract: A two-stage switch valve includes a valve body slidable in a flow passage of a fluid, and a spring urging the valve body upstream. The valve body includes a valve element slidable in the flow passage, an upstream guide having a ring shape and being slidable in the flow passage, and legs connecting the valve element and the upstream guide. The upstream guide is located upstream of the valve element. The legs are inclined from an axial direction of the upstream guide and extend from the upstream guide toward a center of the valve element.

Abstract: The invention relates to the field of physics—namely, to control systems and the pressure control of liquids and gases, in particular—to stabilizing devices operating at overloads, including hydraulic shocks. Technical result from use of the claimed invention is simplicity of the manufacturing process and assembly, easiness of operation and efficiency of quenching pulses. A method consists of the fact that at the section of said pipeline installed at least one pressure pulse stabilizer in the direction of movement of transferred medium from supplier to consumer. Pulse flow is directed as a first portion into the stabilizer, and after its first portion a second portion of the flow is directed, which after a delay is sent into additional input of the stabilizer. The potential sources of pressure pulses are preliminary revealed on the protected section of the pipeline.

Abstract: A burner includes a tubular inner tube portion and a tubular outer tube portion. The inner tube portion mixes fuel with air. The outer tube portion surrounds the inner tube portion. A peripheral wall of the inner tube portion has a gaseous mixture outflow hole. The gaseous mixture outflow hole causes a clearance between an inner peripheral surface of the outer tube portion and an outer peripheral surface of the inner tube portion to communicate with an interior of the inner tube portion. A peripheral wall of the outer tube portion has an air supplying hole. The air supplying hole further supplies air to the clearance.

Abstract: A burner includes a first tube portion formed with an ejection port; a second tube portion that extends in the first tube portion toward the ejection port and to which gaseous mixture flows in from a side opposite to the ejection port; a third tube portion arranged in the first tube portion and including an open end positioned on the ejection port side; a closing portion that closes the open end; a coupling wall portion that closes a gap between the first tube portion and the second tube portion; a partition wall that is coupled to the first tube portion and the third tube portion, the partition wall being formed with a communication path; and an igniting portion that is arranged on the ejection port side with respect to the partition wall.

Abstract: A method for using a drilling fluid test device including a test cell including a perforated plate disposed proximate a first end of the test cell, a piston disposed within the cell, a first chamber formed between the perforated plate and the piston, the first chamber configured to receive lost circulation material (LCM), a second chamber formed between the piston and a second end of the test cell, the piston providing a seal between the first and second chambers, a fluid inlet disposed proximate the second end of the test cell configured to introduce fluid into a second chamber of the test cell, a filtrate outlet disposed proximate the first end of the test cell to discharge filtrate, and a pump in communication with the fluid inlet.

Abstract: A containment system having a containment dome and a seal plate which is attached to an oil wellhead casing or riser to prevent oil spills and contamination when an oil leak occurs. The containment dome is sealed to the seal plate by a compression mechanism so that oil will not leak from the containment dome. The seal plate may be part of a drilling package having a lower marine riser package, a blowout preventer, and a shear module below the blowout preventer. The containment dome can provide a wellhead patch to a wellhead system wherein the wellhead patch can interface with a capping stack. Chemicals can be injected into the containment dome to prevent hydrates from forming. All aspects of controlling and operating an oil wellhead can be performed through the containment dome and seal plate, and all aspects of installation, regulation, and control of the containment dome can be performed by remote operating vehicles under water.

Abstract: The present invention provides a measuring unit, a kick information identification apparatus and method, and relates to the oil and gas well engineering field. The measuring unit comprises: a throttling device, mounted on a drill stem; sensors, arranged at the two sides of the throttling device, and configured to sense the pressure and/or temperature at the two sides of the throttling device; and a signal transmitter, configured to transmit the pressure and/or temperature values. The present invention employs a throttling device and measures the pressure drop and/or temperature difference across the throttling device, and can identify kick information successfully according to the pressure drop and/or temperature difference. Even in the case of horizontal wells where the flow and pressure variations are not apparent, the present invention can still attain a good kick information identification effect.

Abstract: An air intake guide for a jet propulsion power plant for a supersonic aircraft comprises an intake aperture, an intake center body and an intake adjustment device. The intake aperture has an intake lip, an intake center body is positioned within the aperture, and an intake adjustment device is positioned on a radially inwardly facing surface of the air intake guide downstream of the intake lip. The intake adjustment device comprises a flexible panel and an actuator with the actuator being adapted to deflect the flexible panel in a radially inwardly direction so as to reduce a cross-sectional area of the intake aperture and thereby to position a shock wave at the intake lip.

Abstract: An outlet tube for a material transfer system. The outlet tube comprises a body and at least one restrictor. The body is adapted to be connected to a feed system. The body has an inner wall that defines an opening adapted to receive material from the feed system such that the body is adapted to allow a flow of the material through the opening and out of the tube. At least one restrictor extends inwardly from the inner wall of the body into the opening. The restrictor(s) is adapted to extend into the flow of the material to impede the flow. In addition, the restrictor(s) is configured to enable the material to flow around it to exit out of the tube.

Abstract: Tracks (35), fastened to static structure of an aircraft engine nozzle, guide sliders (32) journaled in struts (27, 28) fastened to a flap (23) of the nozzle. Each slider and attached journal axle or bolt (33) is formed of cobalt, and each track slider surface (61) and journal bushings (43, 44) are formed of a nickel alloy to reduce wear from rubbing. Track slides (40, 41) are mounted to the static structure of the nozzle by blind bolts (68) having a tool recess (70) at its threaded tip to prevent the bolt (68) from turning as a nut is secured. Each slider has limited rotation due to a pin (102), thereon engaging a slot in a tab (100) of the bushing (43) to assist in inserting the slider (32) into the beveled ends of the tracks (35, 36), when mounting or replacing a flap.

Abstract: A method of operating a drip irrigation system is provided and includes providing drip irrigation lines aside a diverter line with T-junctions interleaved between adjacent ones of the drip irrigation lines and each T-junction including a three-way line coupled to the diverter line, a check valve operably disposable between the three-way line and a downstream end of an upstream one of the drip irrigation lines to permit fluid flow in only a forward direction and a controllable valve operably disposable between the three-way line and an upstream end of a downstream one of the drip irrigation lines.

Abstract: A method of operating a drip irrigation system is provided and includes providing drip irrigation lines aside a diverter line with T-junctions interleaved between adjacent ones of the drip irrigation lines and each T-junction including a three-way line coupled to the diverter line, a check valve operably disposable between the three-way line and a downstream end of an upstream one of the drip irrigation lines to permit fluid flow in only a forward direction and a controllable valve operably disposable between the three-way line and an upstream end of a downstream one of the drip irrigation lines.

Abstract: A subsurface emitter includes a piston valve both preventing water from draining from the system, and blocking the entry of roots and soil into the emitter body. A nozzle is present at one or both ends of a vertical tube. A piston is held in a normally closed position by a spring in the absence of water pressure, covering ports in the nozzle. When sufficient water pressure in provided, the spring is compressed and the nozzle uncovers the port providing a subsurface spray of water. The spray of water is sufficient to clear mineral deposits which otherwise may accumulate and block the port.

Abstract: A fuel control module including a gas vent manifold is disclosed. The gas vent manifold includes a first gas vent portion including a first gas vent connection and a second gas vent portion including a second gas vent connection. The gas vent manifold also includes a condensation portion extending between the first gas vent portion and the second gas vent portion. The gas vent manifold further includes a condensation drain port fluidly connected to the condensation portion. The gas vent manifold also includes a plurality of connection ports. Each connection port is configured to fluidly couple the gas vent manifold to a vent line of one or more pneumatic valves.

Abstract: A sanitary insertion unit has a sealing ring with a sleeve-shaped extension, the free end region of which extension has a head which protrudes circumferentially and, when the extension is inserted into an associated line section, can be deformed at least in regions such that the head of the extension is placed onto the inner circumferential wall of the line section. A sanitary insertion unit also has/is a flow regulator, the outer circumference of the housing of which bears a clamping edge region for sealing and clamping the flow regulator between two interconnected line sections, the flow regulator bears a sleeve-shaped extension, the circumferentially protruding head of which, produced from elastic material, can be deformed, when the extension is inserted into a line section, such that the head is placed onto the inner circumferential wall of the line section.

Abstract: Pressure compensators for stabilizing the flow of water are disclosed including at least one flow orifice (10) passing through a pressure compensator body (1) and at least one flexible flow controller (2) which can at least partially block the orifice (10) to provide it with a predetermined flow area whereby the flow controller flexes and reduces the flow area at increased water pressures. Flow controllers are also disclosed for controlling the flow of water including a revolving body (5) for selectively opening and closing a number of flow openings (17) therethrough.

Abstract: A device for regulating the airflow in an air damper including a twist sleeve of flexible material, the cross section of which substantially conforms to, an outer tube in which the flow takes place, one end of the twist sleeve being disposed on the inner side of the outer tube and the other end of the twist sleeve being disposed in a tube sleeve which can be rotated under an axial displacement controlled in relation to the rotation. The tube sleeve may be provided with a helical slot. A guide pin is arranged on an inner side of the outer tube, which guide pin goes down into the helical slot. The operating apparatus comprises two cords, which cords are provided with fastenings against the tube sleeve and run along opposite circumferential directions of the tube sleeve between the outer tube and the tube sleeve.

Abstract: A system and method enabling flow control with respect to a well related fluid. The system utilizes a choke manifold with a choke that can serve the function of both a fixed choke and an adjustable choke. The choke comprises components that are selectively adjusted to effectively provide differing calibrated flow paths along which the well related fluid flows when passing through the choke manifold. The choke manifold also may be combined with other system components in an efficient arrangement that facilitates handling of a variety of fluids, including multiphase fluids.

Abstract: A sanitary installation element that is arranged in a water line includes a mixing device with at least one throttling or closing element, which throttling or closing element can be moved under the pressure of the inflowing water from a mixing or open position into a throttling or closed position against a restoring force, wherein the mixing device offers a relatively large clear flow cross section when the at least one throttling or closing element in the mixing or open position, and, by contrast thereto, a reduced clear flow cross section when the at least one throttling or closing element is in the throttling or closed position. The installation element always offers an optimum flow cross section both in low and high pressure ranges.

Abstract: An exhaust module made of a thermoplastic material which is connected to a fascia or bumper of a vehicle. In one embodiment, the hybrid fascia mounted exhaust tip assembly includes a bracket. The bracket has a bracket inlet which surrounds, but is not in contact with, an exhaust pipe. The exhaust pipe is free to move around as a result of the vehicle traveling over bumps in the road and around turns. The bracket also has a bracket outlet which is connected to the bracket inlet. A ring tip has a portion that slides onto a bezel portion of the bracket outlet.

Abstract: A flow regulating device in a fluid system according to one embodiment may include a housing defining a cavity receiving an orifice body. The orifice body defines a bore extending axially therethrough and includes a flexible end section, with axial slits in one example, to allow the end section to be radially compressed to change a cross-section of a flow passageway when the bore of the orifice body is included in the flow passageway.

Abstract: A pipe, in particular in the air supply system of internal combustion engines which are provided, in particular, with an intake system and/or control electronics, is described, wherein the internal pipe and/or the internal pipe surface (1) have/has at least one element (1, 5, 6) which changes the diameter (2) of the internal pipe and/or the cross-sectional area of the internal pipe.

Abstract: Pressure reducers are disclosed that, in some embodiments, are designed for use in a pressurized pipe line to provide variable resistance to flow of process fluid, such as steam or water, with no moving parts. The pressure reducers have an elongate outer shell and an inner sleeve spaced radially inwardly from the outer shell. The outer shell is defined by an outer annular wall having an open end and an end wall opposite the open end. The inner sleeve and the outer shell are connected near the open end. The inner sleeve defines a passageway that extends into a cavity defined by the outer shell and has an outlet that is spaced from the end wall. The outer annular wall and the end wall are perforated by a plurality of flow holes extending therethrough, and the sleeve is preferably not perforated.

Abstract: A modularly structured unit is comprised of a flow resistance element and an orifice plate adjacent thereto, preferably for use in the main flow duct of a thermal mass flow rate measuring or control device. The flow resistance element can be combined with various orifice plates having different opening diameters.

Abstract: A variable-aperture reciprocating reed valve includes a valve body defining a through hole region having a contoured-profile portion. A semi-rigid plate is affixed on one side thereof to the valve body to define a cantilever extending across the through hole region. At least one free edge of the cantilever opposes the contoured-profile portion of the through hole region in a non-contact relationship.

Abstract: An aperture-shaped variable valve which is used for a semi-active control. The variable valve includes a ring-shaped aperture frame, a plurality of aperture plates which is arranged in a ring shape by overlapping each other on the aperture frame and forms an aperture, a restoring ring which fits into the outside of an aperture surface, and a spring which is connected between the restoring ring and the aperture frame.

Abstract: A marine jet pump with an adjustable venturi. An annularly compressible ring is affixed coaxially to the aft end of the pump housing. A collar coaxial to the ring is moveable coaxial to the ring. In a constricted mode the collar is mechanically forced over the aft end of the ring thereby reducing the diameter of the ring. In a dilated mode the collar is mechanically withdrawn to a predetermined degree from over the aft end of the ring allowing the ring to revert to it naturally dilated state. The transition between dilated mode and constricted mode can occur under full power.

Abstract: A variable resistance device, suitable for pressure reduction in fluid control systems, comprising a housing with a pair of perforated tubes motivated to slide against each other in order to vary the amount of flow area exposed in such perforations, and wherein a cam and lever system causes sliding motion of one of the tubes.

Abstract: A device and method restricting water flow from a bathroom fixture is provided herewith. A preferred embodiment of the improved flow restrictor assembly comprises a metallic fitting or housing that accommodates an interior ring assembly and a flow-restrictor disk. The fitting is substantially tubular with a top section, a bottom section and an intersection. The top section of the fitting is defined by an opening, a hollow interior and a ledge upon which the interior ring assembly and flow-restrictor disk are positioned when the flow restrictor assembly is installed and in use. The bottom section features a pair of gripping planes which can be gripped by a specialized tool for purposes of uninstalling the improved flow restrictor assembly.

Abstract: A restrictor mechanism is provided in a pilot operated solenoid valve that restricts the pilot flow to the actuating piston of the valve if the pressure differences within the valve are great. This reduces the actuating forces allowing the valve to open or close softly. As the pressures within the valve start to balance, the restrictor device opens, allowing full pilot flow to hold the valve in position.

Abstract: A damper opening and closing device includes an outer cylinder, an inner cylinder that is disposed inside the outer cylinder, is supported movably relative to the outer cylinder and has a fluid passage therein, and a damper group that includes a plurality of dampers disposed in the fluid passage so that the fluid passage is openable and closable. The plurality of dampers are arranged in a circumferential direction of the fluid passage and disposed in the fluid passage in such a way that inner peripheral edges of the dampers are opposed to each other. The damper opening and closing device further includes an angle control unit configured to control the tilt angle of the damper in conjunction with movement of the inner cylinder relative to the outer cylinder.

Abstract: A fire hydrant water meter having a flow restricting device that creates back pressure to restrict the flow of water through the fire hydrant water meter. The flow restricting device includes a plurality of flexible vanes that combine to define a variable orifice. As the flow of water through the meter increases, the individual flexible vanes move away from each other to expand the size of the flow orifice. The flow restricting device provides a source of back pressure to water flowing through the meter to restrict the flow rate of water and thus protect the metering device contained within the fire hydrant water meter.

Abstract: An apparatus for treating a liquid includes a first flow generator having an outlet for generating a first flow stream and a reaction chamber positioned in proximity to the outlet of the first flow generator and having a cavity adapted to receive the first flow stream from the first flow generator and reverse its direction within the confined space of the cavity. The flow generator may be a cavitation generator for producing multiple cavitation bubbles in the first slow stream, or a nozzle for generating a flow stream devoid of cavitation bubbles. A method for treating a liquid includes directing the liquid into a first flow generator configured to generate a first flow stream of the liquid, and directing the first flow stream from the first flow generator into a cavity of a reaction chamber.

Abstract: A water-saving device structure is provided. When the pressure of an entry water is high, a water-barrier sheet body is pressed to cause a downwardly-moved elastic stopping portion to block a water-inflow opening of a water-outflow seat body, so that the water flow is conducted to a water-outflow opening through a water-conducting opening of the water-barrier sheet body. When the pressure of the entry water is low, the entry water is conducted to the water-outflow opening via one path traveling from the water-conducting opening of the water-bather sheet body to the water-outflow opening of the water-outflow seat body and the other path traveling along the clearances of stopping wall portions of the water-outflow seat body, a water-storage circular slot portion, the water-inflow openings of the water-outflow seat body and the water-outflow opening of the water-outflow seat body. Therefore, the outflow water with steady flow rate can be obtained.

Abstract: The present invention provides, in part, a valve assembly and method that maintains balance of flow to pressure in fluid and gas piping system applications. In one embodiment, the present invention includes a main body component adapted to retain a chamber body component, a fluid control plate and seal, and a chamber cap. The chamber body component is slidably maintained within the main body component. A resilient gland member is securably attachable to one end of the main body component and the chamber body component, and acts as a seal and a memory for returning the chamber body component to a standard operating position upon fluid pressure environment shifting the chamber body component towards a shut off position. In one embodiment, the chamber cap, gland member and a pressure plate member act as an end body member securable to an end of the main body component and chamber body component.

Abstract: Apparatuses and methods are described for adjusting air flow in a forced-air delivery system.

Abstract: A flow modulating device comprises flow modulating elements 8 of a shape memory alloy, which are acted upon by resilient elements 10. The flow modulating elements 8 and resilient elements 10 are mounted on a common support ring 6. At one temperature, the flow modulating elements 8 overcome the resilient force of the resilient elements 10 to lie against the wall of a duct 4 in which the device is situated. The flow modulating elements 8 thus offer a relatively low resistance to flow in the duct 4. At a second temperature, the force of the resilient elements 10 overcomes that of the flow modulating elements 8 to deflect them inwardly of the duct 4, so increasing the flow resistance of the device.

Abstract: A device for shutting an aircraft jettisoning circuit includes a coupling endpiece. The endpiece carries a sealing gasket and means suitable for modifying a dimension of the gasket.

Abstract: A water saving device and method of using same. The water saving device includes a sleeve and an elastomer fixed in the sleeve. The elastomer has at least a permanently-open hole, a throttling hole and a protrusion for arranging the permanently-open hole and the throttling hole. The permanently-open hole is a hole which still maintains open status after being distorted by pressure. The throttling hole is a hole which will be closed approximately after distortion by pressure. The water saving device not only has the function of decreasing the flow, but also can adjust the flow of the shower and faucet to make the flow steady.

Abstract: A fluid delivery device for fixing to and delivering a fluid into a pressurized pipe, the device operable for restricting a flow of fluid through the pipe, thereby generating a restricted flow region within the pipe, the device including a delivery conduit arranged to open into the restricted flow region.

Abstract: The present invention provides, in part, a valve assembly and method that maintains balance of flow to pressure in fluid and gas piping system applications. In one embodiment, the present invention includes a main body component adapted to retain a chamber body component, a fluid control plate and seal, and a chamber cap. The chamber body component is slidably maintained within the main body component. A resilient gland member is securably attachable to one end of the main body component and the chamber body component, and acts as a seal and a memory for returning the chamber body component to a standard operating position upon fluid pressure environment shifting the chamber body component towards a shut off position.

Abstract: A device and method restricting water flow from a bathroom fixture is provided herewith. A preferred embodiment of the improved flow restrictor assembly comprises a metallic fitting or housing that accommodates an interior ring assembly and a flow-restrictor disk. The fitting is substantially tubular with a top section, a bottom section and an intersection. The top section of the fitting is defined by an opening, a hollow interior and a ledge upon which the interior ring assembly and flow-restrictor disk are positioned when the flow restrictor assembly is installed and in use. The bottom section features a pair of gripping planes which can be gripped by a specialized tool for purposes of uninstalling the improved flow restrictor assembly.

Abstract: Pressure reducers are disclosed that, in some embodiments, are designed for use in a pressurized pipe line to provide variable resistance to flow of process fluid, such as steam or water, with no moving parts. The pressure reducers have an elongate outer shell and an inner sleeve spaced radially inwardly from the outer shell. The outer shell is defined by an outer annular wall having an open end and an end wall opposite the open end. The inner sleeve and the outer shell are connected near the open end. The inner sleeve defines a passageway that extends into a cavity defined by the outer shell and has an outlet that is spaced from the end wall. The outer annular wall and the end wall are perforated by a plurality of flow holes extending therethrough, and the sleeve is preferably not perforated.

Abstract: A flow device adapted to operate as a restrictor as well as provide a pressure relief capability in the event of an over-pressurization event within a fluid system containing the device. The flow device includes an expandable orifice that has an outer perimeter, a plurality of cantilevered tabs surrounded by the outer perimeter, and an opening surrounded and defined by the tabs. The tabs project from the outer perimeter toward the opening, which restricts flow of the bleed air through the expandable orifice at a pressure below a predetermined pressure level, but then expands to relieve an over-pressure condition of the bleed air at a pressure above the predetermined pressure level as a result of the cantilevered tabs being deflected by the over-pressure condition. The device is adaptable for use in aircraft applications, including the regulation of bleed air used in anti-icing/de-icing systems.

Abstract: A valve formed from a frustoconical piece of foldable material, having folds extending from a closable end towards the other end that connects to a container of liquid, each fold having an inner crease extending into the interior region of the nozzle. The valve has a biasing mechanism that may include a spiral spring encircling a nozzle to bias the inner creases inward to cause them to abut each other at the closable end so that the valve is maintained in a closed position. When liquid is forced into the interior region under sufficient pressure it causes the nozzle to move from the closed position to an open position so liquid flows from the interior region out the closable end of the nozzle, and when the pressure on the liquid is removed, the biasing mechanism causes the nozzle to move back to the closed position.

Abstract: A fluid flow regulator includes a regulating profile which is either centrally or peripherally disposed within the flow rate regulator, and an annular restrictor which is made of an elastic material. In a functional position of the flow rate regulator, the restrictor delimits a control gap between itself and the regulating profile. In a starting position of the flow rate regulator, the flow rate regulator has an unrestricted flow cross section that is larger than the control gap. The unrestricted flow cross section of the flow rate regulator is variable by a deformation of the restrictor in response to a pressure differential that is generated when a fluid flows through the flow rate regulator. The relative position of the restrictor and the regulatory profile is variable, and moveable against a reset force, into the functional position from the starting position, in response to a flow of fluid within the flow rate regulator. The reset force may be provided in the form of a spring.

Abstract: An exhaust control device for a vehicle engine includes an exhaust control valve capable of changing the opening area of an exhaust passage. The exhaust control valve is disposed in exhaust passage forming means so as to be able to change a bent-internal side partial passage sectional area of the passage sectional area of an exhaust passage. Specifically the exhaust control valve is disposed at a bent portion of the exhaust passage that is closest to an exhaust valve port. With this configuration, the exhaust flow rate can be controlled satisfactorily.

Abstract: A combined exhaust gas aftertreatment/dust ejector unit (10) is provided for use with a combustion process (14) and an air cleaner (16) of the combustion process (14). The unit (10) includes an elongate housing (30) containing an exhaust gas aftertreatment device (40) and having a radial exhaust gas outlet (34) to direct an exhaust gas flow (12) radially from the housing (30), and a dust ejector (60) including an ejector outlet (62) positioned in the exhaust gas outlet (34). The exhaust gas outlet (34) and the ejector outlet (62) have elliptical shaped cross sections (68,70), with the ejector outlet cross section (70) spaced inwardly from the exhaust gas outlet (34) to define a reduced flow area (72) for the exhaust gas flow (12) to accelerate the exhaust gas flow (12) past the ejector outlet (62).

Abstract: In one embodiment of the disclosure, a fluid mixing device comprises a flow duct, with a wall having an inner surface defining a fluid flow path for a primary flow, and at least one deployable and retractable projection. The projection is adapted to controllably generate at least one secondary flow adjacent the inner surface. In other embodiments, methods are provided of controllably mixing at least one fluid within a fluid mixing device.

Abstract: The invention in question relates to a needle-type stepped cylindrical stopper for automatic control of water consumption in pipelines, of two types, each type having two sections for automatically controlling water consumption, irrespective of the water pressure in the line or when the taps are opened, for use in automatic water-saving devices and pressure-sensitive flow controllers, such as to enable, with a single automatic water-saving device, incorporating the needle-type stepped stopper of this invention, automatic control of minimum water consumption, from 4.0 liters per minute as a minimum at a maximum static pressure of 0.2 kilograms per square centimeter up to a maximum water consumption of 10.0 liters per minute at a maximum static pressure of 6.0 kilograms per square centimeter.