Abstract: A CPAP flow driver is adapted to split supplied breathable fluid into a first portion delivered to a venturi throat to generate a pressure drop to draw in ambient air to create a CPAP flow And a second portion that is delivered to a nebulizer to drive the nebulizer.

Abstract: Systems and apparatuses for regulating a multi-phase fluid stream flowing from a subterranean geological formation, and related methods are described herein. The system and apparatus generally include a conduit defining a flow path for the fluid stream, the conduit further defining a first restriction having a throat portion, and the conduit further defining a first return path including an inlet positioned downstream of the first restriction and an outlet positioned upstream of the inlet of the first return path. Related methods include placing the apparatus or system within a wellbore conduit defined by a wellbore.

Abstract: A non-invasive ventilation system may include a nasal interface. The nasal interface may include a left outer tube with a left distal end adapted to impinge a left nostril, at least one left opening in the left distal end in pneumatic communication with the left nostril, and a left proximal end of the left outer tube in fluid communication with ambient air. The left proximal end of the left outer tube may curve laterally away from a midline of a face. A right outer tube may be similarly provided. One or more left jet nozzles may direct ventilation gas into the left outer tube, and one or more right jet nozzles may direct ventilation gas into the right outer tube. The jet nozzles may be in fluid communication with the pressurized gas supply.

Abstract: An annular ejector of an annular jet pump is coaxially arranged at a front of a central ejector. The annular ejector includes an annular nozzle, an annular mixing chamber, and an annular mixing duct. The central ejector includes a central nozzle, a central mixing chamber, and a central mixing duct. The annular nozzle is connected with a primary fluid inlet. A primary fluid inlet is in direct connection with the central nozzle arranged at a bottom of the central pipe, and a secondary fluid inlet is connected with a sidewall of the annular mixing chamber.

Abstract: A mixing reactor for heterogeneous fluids includes a first inlet part for introducing a first fluid, a first nozzle to eject the first fluid, a fluid chamber having a first space portion and a second space portion having a larger inner diameter than that of the first space portion, a second inlet part for introducing a second fluid, a second nozzle to eject the second fluid, a mixing chamber, and a third nozzle part to eject the second fluid. In the mixing reactor for heterogeneous fluids, two or more fluids are effectively collided with each other to enhance mixing uniformity, reduce side reactions, and thus improve reaction yield and reaction rate, and allow for simple maintenance and reuse.

Abstract: An ejector includes a body member having a depressurizing space that depressurizes a refrigerant which flows out of a swirling space that swirls the refrigerant, a suction passage that draws the refrigerant from an external, and a pressurizing space that mixes a refrigerant jetted from the depressurizing space with a refrigerant drawn from the suction passage and pressurizes the mixed refrigerant, and a conical passage formation member arranged in the depressurizing space and in the pressurizing space. A nozzle passage is formed of a refrigerant passage between an inner peripheral surface of the depressurizing space and an outer peripheral surface of the passage formation member, and a diffuser passage is formed of a refrigerant passage between an inner peripheral surface of a portion that defines the pressurizing space and an outer peripheral surface of the passage formation member.

Abstract: PCV systems are well known in the art and commonly used in turbocharged engines. The ejector creates a pressure drop for additional pull of PCV gas under boosted conditions of the turbocharger engine. The ejector typically includes a first inlet and a second inlet and a sole outlet. The first inlet pulls air from the compressor of the PCV system. The second inlet pulls air from the cyclone separator of the PCV system. Air exiting the ejector is exited to the intake manifold. However, when the turbocharger of the system is off, fresh air can leak in from the inlet from the oil separator thereby preventing the ventilation of blowby. The unwanted air reduces the efficiency of the turbocharger system. Accordingly, an ejector preventing unwanted fresh air flow is needed in the art.

Abstract: A downhole jet pump 10 includes an exterior pump housing 12, the jet nozzle 30, and a carrier 40. A diffuser 46 is provided downstream from a mixing tube 32, and preferably forms a unitary body sealed to the pump housing. An inlet valve 100 passes formation fluid to the pump housing.

Abstract: A system for automatically transferring the fuel from one or more engine fuel manifolds directly to the engine fuel tank(s) during engine shutdown using an ejector pump has been presented. A checkvalve, which may be integrated with the ejector pump, is also used. A metering valve initiates fuel flow shutoff and is used in the draining of the fuel manifolds, thereby eliminating the need for an additional solenoid dedicated mainly to the shutoff function. The shutoff and pressurizing valve provides flow division between manifolds and manifold drain for systems having multiple manifolds. The bypass valve is used to turn the motive flow and/or manifold drain functions on and off as a function of engine speed at start and shutdown.

Abstract: An ejector system comprises a lobed, supersonic primary nozzle and a convergent/divergent ejector shroud. The lobed nozzle is just upstream from the ejector shroud, such that there is an annular space between the nozzle and shroud for admitting a secondary flow. In operation, a primary flow of high-pressure steam or air is directed through the primary nozzle, where it is accelerated to supersonic speed. The primary flow then exits the primary nozzle, where it entrains and is mixed with the secondary flow, creating a low pressure region or vacuum. The ejector shroud subsequently decelerates the combined flow while increasing the flow pressure, which increases suction performance and reduces energy loss. Because the primary nozzle mixes the two flows, the ejector shroud is able to have a length-to-entrance-diameter ratio significantly smaller than typical shrouds/diffusers, which decreases the system's size and increases performance.

Abstract: The invention provides a jet pump comprising a housing containing a nozzle into which an injected fluid is introduced, the housing also possessing a suction orifice, the pump comprising, upstream from the outlet of the nozzle, an auxiliary chamber associated with two sealing elements, each sealing element being adapted to open when the pressure of the injected fluid exceeds a predetermined level, the first sealing element opening at a first pressure level, the second sealing element opening at a second pressure level greater than or equal to the first.

Abstract: A self-compensating, energy saving heat transfer unit to provide an efficient means to transfer energy from steam to water in a central heating system. The steam enters a mixing chamber and creates a negative pressure environment. Water in a backwater pipe, which is at a lower temperature and pressure, is absorbed into the mixing chamber where energy is passed from the steam to the water. The water then leaves the first mixing chamber and enters a second mixing chamber where compensation water is added to make up for the possible loss of water that may occur in the central heating system. The heated water then exits the heat transfer unit and goes back into the central heating system. After being cooled in the central heating system, the water then reenters the heat transfer unit at the backwater pipe and continues the cycle over again.

Abstract: The invention relates to the field of jet technology. The surface area of the minimal cross-section of the mixing chamber represents from about 1.1 to about 7.98 times that of the minimal cross-section of the active liquid nozzle. A liquid-gas jet apparatus with the above described correlation of sizes has a higher efficiency due to reduced energy losses.

Abstract: A jet pump for a heat gun includes an elongate hollow pump body lying along a longitudinal axis. The pump body has an inlet, a mixing section and an outlet. A nozzle unit is axially aligned with the inlet for directing pressurized fuel into the inlet of the pump body. Movement of the pressurized fuel into the inlet causes air to be drawn into the inlet to mix with the fuel within the pump body. A disk shaped air diverter is axially spaced away from the inlet of the pump body. The diverter has a length and a diameter. The diameter of the diverter is greater than the length of the diverter and larger than the inlet of the pump body. A housing is radially spaced from and surrounds the diverter forming a first annular gap therearound for air outside the housing to pass therethrough. The air moves around the diverter then changes direction between the diverter and the inlet of the pump body before entering the inlet.

Abstract: Dispenser for dispensing simultaneously two liquids held in respective flexible containers, one within the other. Concentric tubular passages are provided for flows of the liquids from their containers when pressure is applied to the outer container. The inner passage has a narrow elonage form and terminates within the outer passage a final exit section of which provides a common conduit for both flows. A reduced liquid pressure is produced at the inner passage termination by having a tapered upstream end of the conduit overlapping the termination and the conduit is configured to inhibit mixing of the flows along its length. The two liquids are thus dispensed in a single stream in which, e.g., a colored flow from the inner passage is visible in the core of the stream. By adjusting the position of the conduit taper relative to the inner passage termination, it is possible to vary the proportions of the two components in the flow.

Abstract: This invention relates generally to pumps, and more particularly, to a new concept in pumps where the principle of operation is based on the change in momentum of a curved, fluid jet curtain, with the pump itself containing no moving parts.

Abstract: A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump which generates low pressure air for powering one or more atomizing devices, such as spray guns, with the intake of the induction pump being located a predetermined distance away from the atomizing devices so that overspray produced thereby is prevented from being fed along with ambient air into the induction pump. The system also controls the supply of compressed air and can be equipped with a compressed air driven intake fan for turbo charging the ambient air fed to the jet venturi induction pump. A booster source of regulated low pressure air is also coupled to the feedline(s) coupled to the individual atomizing devices to augment the low pressure air generated by the jet venturi induction pump for certain spraying tasks.

Abstract: A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump located within a sealed low pressure air tank for holding a relatively large volume of low pressure air generated by the induction pump which is coupled to a source of compressed air as well as ambient air and having a plurality of outlets which are adapted to be coupled to and feed low pressure air for powering a respective plurality of individual atomizing devices, such as spray guns, with the air tank being located a predetermined distance away from the atomizing devices so that overspray produced thereby is prevented from being fed along with the ambient air into the induction pump. The system also controls the supply of compressed air and can be equipped with a compressed air driven intake fan for turbo charging the ambient air fed to the jet venturi induction pump.

Abstract: The present invention discloses a venturi pumping arrangement which is used to pump fluids or solutions with a high efficiency. The arrangement comprises an inner pipe and an outer pipe having a passage therebetween. The inner pipe is partially located in the venturi shaped profile of the outer pipe. A chamber has an inlet through which a fluid is passed under pressure which in turn passes through the passage which produces a reduced pressure within the outer pipe which causes a second fluid to be drawn through the inner pipe into the outer pipe. The clearance of the passage is able to be varied on the arrangement to provide variable load performance.

Abstract: The present invention provides an adjustable venturi device designed for efficient use with blowers of various different capacities. The venturi device of the present invention includes a blower feedable positive air passage and a negative pressure air inlet exposed to and operated by air draw from the positive air passage. The venturi device is adjustable for varying exposure of the air inlet to the positive air passage with resultant varying of the air draw according to capacity of the particular blower used with the venturi device.

Abstract: A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump located within a sealed low pressure air tank for holding a relatively large volume of low pressure air generated by the induction pump which is coupled to a source of compressed air as well as ambient air and having a plurality of outlets which are adapted to be coupled to and feed low pressure air for powering a respective plurality of individual atomizing devices, such as spray guns, with the air tank being located a predetermined distance away from the atomizing devices so that overspray produced thereby is prevented from being fed along with the ambient air into the induction pump. The system also controls the supply of compressed air and can be equipped with a compressed air driven intake fan for turbo charging the ambient air fed to the jet venturi induction pump.

Abstract: Apparatus for converting high pressure, low volume air to low pressure, high volume filtered air in order to successfully atomize fluids, such as paint, of various viscosities. The invention makes it possible to utilize safe, economical compressor air to atomize fluids by a portable enclosure including a variable jet venturi induction pump which separates the pump from the area of application and other potentially contaminating elements. Ambient air is introduced into the portable enclosure after regulation and filtration. A low pressure field is established in the induction pump by increasing the velocity of the compressor air in a venturi section of the pump but is free of contaminates generated, for example, by overspray in the vicinity of the area of application.

Abstract: Pumping system that uses compressed air to pump fluids continuously without inducing disturbances to the surrounding hydrologic regime. The suction source of the pumping system is the vacuum-drawing effect of a vortex created by a reflected air stream on an air reflector. The projected air stream on the air reflector is provided through the annular space between the inner and the outer tubing of a coaxial hose, and the reflected air stream carrying the effluent is discharging through the inner tubing of the coaxial hose. The flow of the projected and the reflected air streams is independently controlled using a coaxial hose splitter. Solid particles in the influent are filtered prior to entering the pumping system, and the effluent is separated upon discharge using separators.

Abstract: A plug valve, a check valve for a plug valve, a pressure regulator for a plug valve, and a check valve for a conduit. A plug valve having a plug closure member for sealing off the open end of a conduit and thereby preventing flow of a first fluid through the conduit, the plug closure member connected to a hollow stem, a channel for the flow of a second fluid extending through the hollow stem and plug closure member, the plug closure member and stem movable in a guide tube toward and away from the open end of the conduit, the plug closure member seatable in the open end of the conduit. In one embodiment the plug valve may have a pressure regulating member in the channel through which the second fluid flows. In another embodiment a check valve may be disposed within the channel to prevent flow of the first fluid down the hollow stem. The pressure regulating member and check valve may be combined in one embodiment. A conduit for use with a plug valve, the conduit having a check valve.

Abstract: Ventilator adapted to be connected to a source of gas under pressure comprising a case and an inlet adapted to be connected to the source of gas. It also is comprised of an oscillator cartridge carried by the case and having a body with an inlet and an outlet and a flow passage interconnecting the inlet and the outlet. A valve member is carried by the body and is movable between open and closed positions with respect to the outlet. A diaphragm is carried by the body and is connected to the valve member for moving the valve member between and open and closed positions to interrupt the flow of gas in the flow passage between the inlet and the outlet. A servo port is carried by the body for supplying gas to the diaphragm for causing movement of the diaphragm to thereby cause movement of the valve member to the closed position to interrupt the flow of gas in the flow passage between the inlet and the outlet.

Abstract: A liquid heating apparatus capable of using low pressure steam and having a temperature control system to automatically control the output temperature of a heated liquid. The apparatus includes a tubular housing having an internal annular seal, and a liquid nozzle, that is connected to a source of liquid to be heated, is mounted for axial movement in the housing relative to the seat. The annular space between the nozzle and the seat that defines an annular diverging passage which communicates with a source of steam under pressure. The steam is accelerated as it is discharged through the diverging passage into contact with the stream of liquid being discharged from the liquid nozzle. The liquid and steam then pass through a converging mixing chamber where the momentum energy of the steam transfers to the liquid as the steam condenses on the liquid. The mixture then passes into a diverging diffuser section and the heated liquid is discharged from the diffuser through a discharge conduit to a site of use.

Abstract: An undersea mining apparatus including a hydraulically operated ejector pump for submerged use to provide a reduced pressure adjacent the outlet of a lift pipe, to thereby induce flow of mineral nodules from the ocean floor through the pipe. The jet flow is provided by an annular jet defined between the outlet of the lift pipe and the inlet of a dredge pipe that includes a converging-diverging venturi therewithin. The venturi is movable relative to the outlet of the lift pipe to adjust the area of the annulus defined therebetween, and thereby permit variation of the rate of flow of pressurized water and of mineral nodules therethrough.

Abstract: An adjustable ejector capable of adjusting the fluid flow conditions resulting from fluid flow through the ejector. Adjustment means are provided for varying the fluid presentation size ratio of the inlet nozzle throat to the mixing throat. The adjustment means includes at least one adjustable path structure disposed in either the inlet nozzle or the mixing throat, or both.

Abstract: Ventilator for use with a source of gas under pressure for supplying such gas to the airway of a patient having an inlet adapted to be connected to the source of gas, and an outlet adapted to be connected to the airway of the patient. A pneumatic oscillator is connected to the inlet for supplying pulsatile gas in the form successive small volumes of gas to the airway of the patient during a breath of the patient to cause diffusive ventilation of the airway of the patient. An exhalation valve assembly is connected to the patient airway for permitting the patient to exhale gases introduced into the patient airway.

Abstract: A fluid flow control device includes a first fluid flow passageway, a fluid inlet into the first passageway, a fluid outlet from the first passageway, a second fluid flow passageway in flow communication with the first passageway, and a fluid flow-through opening in fluid flow communication with the second passageway. The fluid flow control device is controlled to selectively provide, alternatively, a vacuum or a pressure condition at the flow-through opening. A pneumatic transfer system is also disclosed for alternately transferring a batch of particulate material from a storage area to a batching vessel, and for transferring the particulate material from the batching vessel to a remote location. The system includes a single blower having its high pressure side in flow communication with the fluid flow control device for selectively providing both vacuum and pressure conditions in the batching vessel to effect the selected transferring of particulate material into and out of the batching vessel.

Abstract: An internal combustion engine supercharged with air by an exhaust gas-driven turbo-compressor discharging through a by-pass duct a tapped flow rate of compressed air into the exhaust gas pipe-line feeding the turbine, said tapped flow rate of compressed air being heated by means of a heat exchanger inserted into the by-pass duct and through which are flowing the exhaust gases from the turbine, said tapped flow rate of heated compressed air being injected into the upstream end of the exhaust manifold of the engine.

Abstract: An ejector 110 having an additional nozzle 173 for issuing a fluid at a relatively high pressure through a throat 113 of the ejector 110 into an outlet 114 from the throat 113, so as to clear any material lodging in the outlet 114 and/or the throat 113. The additional nozzle 113 may be co-axial with the main nozzle 140 of the ejector 110, or angularly disposed from it.

Abstract: A turbocharger system includes a compressor driven by a turbine and a mixing device so connected that a portion of the outlet of the compressor is mixed with a portion of the exhaust gas of the combustion engine and is used to power the turbine. In one form the mixing device is an ejector and in another form, the compressor, turbine and mixing device are a unitary structure. Also described is a turboejector and a system is which a heat exchanger is used to preheat the compressor air prior to admixture with the engine exhaust gas. Various forms and structures are described.

Abstract: Means adapted to receive a supply of compressed air and discharge the compressed air therefrom in a regulated manner via a selected port therein, control means within the means, for use in diverting the flow of the supply of compressed air within the means to thereby divert the air from the selected port to a further port in the means, whereby at least a partial vacuum condition is created in the selected port, allowing the ingress of air therethrough from without the means, the ingressed air mixing with the diverted air so as to be discharged through the further port.

Abstract: A siphon device for use around marinas and the like for siphoning large volumes of water containing debris and foreign matter without clogging thereof. The siphon includes an ell member having an input and an output opening of the same size, a hydraulic pressure input stub member along the larger outer curved portion of the ell and a nozzle element extending only a short way thereinto. The hydraulic pressure input nozzle element being of approximately one-fourth the diameter of the ell input and output openings and provided with diagonal or spiral grooves internally thereof for effecting a swirling action of fluid inputted thereto under high pressure.

Abstract: Pumping ejector having a fixed tubular ejector body passing through the wall of a protective cell. In its part which projects into the cell this body has an extension provided with a first lateral connection for the admission of a pumping steam flow, a second lateral connection connected to a pipe for admitting a fluid to be pumped and an axial diffuser for the outflow of said fluid shaped in convergent-divergent manner and fitted into the body behind the diffuser. It also comprises a tube having an intake opening for the steam flow introduced into the body by the first connection and has at its end facing the diffuser a nozzle for accelerating the steam for the entrainment of the fluid to be pumped.

Abstract: A jet pump has a nozzle for a power fluid, a Venturi for the power fluid and a well fluid, and a passage for the well fluid radially outside the Venturi and into the discharge of the nozzle. The power fluid aspirates the well fluid and the combined stream enters the Venturi. The Venturi is ceramic for erosion control. A shell sheaths the ceramic throughout its length and loads the ceramic compressively to provide a compressive preload on it. This preload opposes radial, outward acting stress in the Venturi arising from a greater fluid pressure within the Venturi than the fluid pressure outside it. The preload also produces a friction lock to keep the Venturi from sliding out of the shell because of an axial pressure differential.

Abstract: An improved apparatus for removing lubricating compositions from crankcase oil pans of internal combustion engines through the oil dipstick well of the engine involves signalling means, acting in response to the amount of vapor flowing to the vacuum chamber of the apparatus to signal, preferably audibly signal, the completion of removal of lubricating composition from the crankcase oil pan.An improved method for removing lubricating composition from crankcase oil pans is also disclosed.

Abstract: A jet flow alternator for reversing the flow of a confined fluid stream which includes selectively controlled tubes to cause said stream to flow in either one of two directions under pressure.

Abstract: Apparatus for charging a liquid with a gas comprising a container with a liquid inlet port toward the bottom thereof, a gas inlet extending through an upper wall of the container towards a jet pipe in the lower wall and an insert extending upwardly from the top of the jet pipe and around the air inlet pipe, the insert being generally conical and tapering towards its union with the jet pipe.