Abstract: This disclosure relates to deep sea mining apparatus, comprising a relatively straight lift pipe, the lift pipe being adapted to extend substantially vertically from the floor of a body of water upwardly to a ship on the surface of the water. A plurality of jet pumps are connected in the pipe at intermittent locations along the length of said pipe, and a hydraulic feed pump is located adjacent each of the jet pumps and is connected to discharge water in its location and to supply the associated jet pump. Means is also provided for injecting compressed air into the jet pumps, the jet pumps thereby forming an ascending current inside the lift pipe by the introduction of the compressed air and water.

Abstract: The apparatus relates to a jet pump or apparatus which displaces a main fluid by a pressurized driving liquid. The apparatus has a duct to receive the main fluid, and a driving liquid manifold cooperating with the duct to receive the pressurized driving liquid. First and second sets of inwardly facing jet nozzles are disposed adjacent a transverse plane of the duct and penetrate the duct side walll to pass the driving liquid into the duct at a mixing portion of the duct having a constant cross-sectional area. The first and second sets of jet nozzles are inclined at angles to the duct axis so that the first nozzles are inclined at a greater angle than the second nozzles. Efficiency of the pump is improved by admitting pressurized gas into the duct and providing the pump with a diverging outlet portion to act as diffuser.

Abstract: An ejector device consists of a number of ejector units each of which includes a suction chamber. The individual units are positioned in a common housing. For making the ejector the housing is produced and the suction chambers are produced therein. These latter are four sided recesses. The holes are made in the partitions between the chambers and in the walls of the housing and nozzles are fixed in these holes. In a further step a flexible cover is placed on the open sides of the chambers. There are openings in that cover. It is covered by a rigid plate with an opening and a second flexible cover is placed on the plate. Finally a second housing is secured to the assembly. Inlet and outlet ports are provided in the second housing.

Abstract: A hydrokinetic amplifier 10 increases the vapor momentum transfer coefficient by directing an annular liquid jet 20 into an acceleration chamber 13 and impinging high velocity vapor streams on both the interior and exterior surfaces of annular liquid jet 20. Impinging merger of the inner vapor stream on the inner surface of liquid jet 20 transfers all the vapor momentum to the liquid. The outer vapor stream surrounding annular liquid jet 20 helps keep liquid out of contact with the acceleration chamber wall 19 and otherwise transfers a substantial portion of its vapor momentum to the liquid on which it impinges and condenses. Multiple annular liquid nozzles 11a and 11b and corresponding multiple vapor nozzles 50a and 50b can be arranged concentrically to capture all the momentum of the inner vapor streams, leaving only the outermost vapor stream to experience friction losses along the acceleration chamber wall 19.

Abstract: A Jet pump for transporting fluid by drawing in the fluid through utilization of a jet stream under high pressure includes a path for transporting the fluid, a plurality of nozzles surrounding the path for supplying high pressure fluid and a plurality of outlets surrounding the nozzles for supplying low pressure fluid.

Abstract: A burner assembly provides for 100% premixing of fuel and air by drawing the air into at least one high velocity stream of fuel without power assist. Specifically, the nozzle assembly for injecting the fuel into a throat comprises a plurality of nozzles in a generally circular array. Preferably, swirl is imparted to the air/fuel mixture by angling the nozzles. The diffuser comprises a conical primary diffuser followed by a cusp diffuser.

Abstract: An improved multiple jet eductor assembly is described consisting of two parts:(1) a manifold ring with a pressurized water inlet and a plurality, preferably four, of radially-spaced, forwardly- and convergingly-directed jet nozzles, and(2) a tube having a bell end, near the bell end at a fixed axial distance therefrom a number of peripheral bosses radially disposed, equal in number to the plurality of nozzles, each boss containing a forwardly- and convergingly- directed porthole adapted to snugly receive a corresponding one of the jet nozzles.The eductor is assembled by forced simple coaxial translational motion of part 1 over the bell end of part 2, the nozzles engaging and entering the portholes with transitory snake-like flexure to reach a "home position" whereat the nozzles revert to their original, free of stress or distortion, molded, straight configuration, utilizing the unique memory property of viscoelastic materials, and securing part 1 to part 2 proximally in the "home position".

Abstract: An ejector for pumping a low pressure, supersonic driven stream to a high pressure is disclosed. Effective pressure recovery in a relatively short axial length is sought.The low pressure driven stream is flowed at supersonic velocities into the ejector. A high energy driving stream is flowed laterally of the driven stream at a supersonic velocity greater than the supersonic velocity of the driven stream and a static pressure above the static pressure of the driven stream to cause compression of the driven stream at supersonic velocities.

Abstract: An aspirator used to inflate flexible structures such as aircraft evacuation slides, rafts, or the like comprises a tubular housing an atmospheric air inlet at one end of the housing, a nozzle within the housing for introduction of high pressure gas downstream of said air inlet, flapper valve means closing the air inlet and operable to open when atmospheric air is induced through the inlet by operation of said nozzle, and means within the housing to operate a device to positively lock or unlock the flapper valve means when said nozzle is not operating or operating, respectively.

Abstract: A supersonic flow aerodynamic window, whereby a steam ejector situated in a primary chamber at vacuum exhausts superheated steam toward an orifice to a region of higher pressure, creating a barrier to the gas in the region of higher pressure which attempts to enter through the orifice. In a mixing chamber outside and in fluid communication with the primary chamber, superheated steam and gas are combined into a mixture which then enters the primary chamber through the orifice. At the point of impact of the ejector/superheated steam and the incoming gas/superheated steam mixture, a barrier is created to the gas attempting to enter the ejector chamber. This barrier, coupled with suitable vacuum pumping means and cooling means, serves to keep the steam ejector and primary chamber at a negative pressure, even though the primary chamber has an orifice to a region of higher pressure.

Abstract: A jet diffuser ejector constructed and defined for maximizing thrust augmentation with minimal length. The ejector is provided with primary injection nozzles arranged in a preselected spaced relationship with the inlet section of the ejector and at a preselected angle with respect to the normal to the thrust axis of the ejector. The ejector may include a diffusing section having upstream and downstream diffusing sections with a diffuser jet arranged intermediate the diffusing sections.

Abstract: The dredging apparatus includes a vertical hollow body arranged to be lowered to the ocean floor and incorporating a venturi entrance at a bottom opening converging to a throat and thence widening abruptly to define an annular step facing upwardly. The diffusion portion of the venturi extends from the step to the upper part of the body and is defined by a gradually widening or increasing diameter portion. Compressed air or gas is introduced into the throat of the venturi at the annular step by passing the gas through a series of vertical holes or orifices passing through the step. The step results in cavitation of the flow of fluid and debris past the exit end of the throat at the step area to result in a reduced pressure at the step surface to thereby facilitate the flow of gas upwardly through the step. The fluid and debris are passed up to the surface of the ocean by an appropriate conveying means either in the form of flexible hose or a series of pipe sections.

Abstract: To improve the erosion resistance of the mixing chamber of a jet pump employed to pump particulate containing fluids, this invention contemplates directing a pressurized source of clean fluid through an annular jet-type orifice, thus providing an annular jet of high velocity clean fluid at the inlet end of the mixing chamber which surrounds an orifice connected to the source of particulate containing fluid and effects the pressurizing and pumping of the particulate containing fluid by the well known jet diffusion technique. Additionally, this invention contemplates the provision of a second annular nozzle surrounding the first mentioned annular nozzle through which a relatively clean fluid is discharged, thereby interposing a clean fluid barrier between the momentumly transferred particulate containing fluid and the surface of the mixing chamber to protect such surface from the abrading effects of the particulate material.

Abstract: A gas anchor for an oil and gas producing well; the gas anchor includes an elongate fluid gas conducting coupling with upper and lower ends; the upper end of the coupling is engaged in the lower end of a production tubing entering the well; an elongate vertical pipe is arranged in the well below the coupling; the pipe has a closed lower end, a perforated upper end portion and has an upper end engaged with the coupling; the coupling has a central vertical oil conducting passage; an elongate, vertical oil conducting stinger is arranged centrally in the pipe and has a lower end opening at the lower end portion of the pipe and an upper end communicating with the oil conducting passage; the coupling next includes a plurality of circumferentially spaced upwardly and radially inwardly inclined gas nozzle openings with lower end communicating with the interior of the pipe above the perforations and directing gas jets upwardly and inwardly to converge above the oil conducting openings whereby gas flowing up through th

Abstract: In a jet pump suitable for pumping liquids, gases, or particulate solids, the primary and secondary flows both pass through the pump in-line, i.e. in the same axial direction. This is achieved by mounting the nozzle head (from which the primary flow issues) at one end of a streamlined body which is suitably supported in the mixing chamber. The suction hose opens directly onto the other end of the body. The whole of the primary flow passes through the streamlined body, so that the secondary flow is sucked over the streamlined body and entrained by the primary flow.The primary flow may issue from a single nozzle at the downstream end of the streamlined body. Alternatively several jets may issue from a ring of nozzles and also from a further nozzle in the center of the ring, all the nozzles being so angled that several jets converge downstream of the nozzle head.

Abstract: An improved ejector utilizing a vortex flow for pumping a fluid. The ejector includes a funnel shaped fluid chamber circumscribing a longitudinal axis and converging from a wide end to a narrow end. A venturi-like throat circumscribing the longitudinal axis is in fluid communication with the narrow end of the funnel shaped chamber. A pair of diametrically opposed fluid inlets are disposed in the wide end of the chamber for directing a driver fluid tangentially into the wide end of the funnel shaped chamber. The chamber and throat are configured to form the driver fluid into a swirling flow which advances toward the throat in the form of a vortex flow having a low pressure region. A secondary fluid inlet is in fluid communication with the low pressure region of the vortex flow. A deflector member is disposed in the funnel shaped chamber radially inward of the venturi throat. The deflector includes a surface which diverges away from the longitudinal axis.

Abstract: The invention relates to an exhaust silencer for internal combustion engines, particularly for manually operated appliances, in which a reduction of the contact and exhaust gas temperatures in order to prevent fire risks on contact with easily flammable objects, particularly forest fires, during the putting into operation of the manually operated appliance and with the supply of a large quantity of fresh air compared with the quantity of exhaust gas in order to bring about a maximum cooling of the hottest gases and/or the outer walls, is achieved in that the wall of the exhaust silencer shell portion which bounds the cooling pipe on one side, following the final outlet hood facing the pipe output port for deflecting the exhaust gas has a negative angular variation with an angle of approximately 2.degree. to 8.degree. for forming a pure or fluidic logic element.

Abstract: A centrifugal aspirator includes an enclosed cylindrical vortex chamber having a plurality of high pressure fluid inlets tangentially oriented with respect to a cylindrical wall of the vortex chamber, an intake inlet approximately centrally disposed in one end of the vortex chamber for conducting a conveying fluid and solid particles contained in the conveying fluid, and an exhaust outlet disposed along the cylindrical wall of the vortex chamber for exhausting a mixture of the high pressure injected fluid, the aspirated conveying fluid and the solid particles.

Abstract: A gas jet pump (10) for producing a secondary flow of gas from a primary flow. The jet pump is disclosed as a tubular body (28) having a flow passage into which the primary flow is introduced through a plurality of jet openings (36, 38, 40) in the tubular body. Each jet opening has axial and circumferential components and is tangent with the surface defining the flow passage so as to produce a vortical flow in an axial direction within the body upon introduction of high pressure gas through the openings. The primary flow produces an amplified secondary flow through the tubular body. An annular manifold (22, 24, 26) is mounted on the tubular body to selectively feed the primary flow to the jet openings. The gas jet pump has application in sheet glass treating apparatus (50, 110), and has particular utility in apparatus used to bend sheet glass. A method of manufacturing a gas jet pump is also disclosed.

Abstract: The invention provides a jet pump system for removing dust from aeriform substances. The dust-laden, aeriform substance is entrained by at least one water jet pump to cause precipitation of the dust and water as sludge out of the aeriform substance.

Abstract: An apparatus for discharging to the atmosphere, combustion gases containing sulphur trioxide, means are provided for injecting into the stream, prior to venting to the atmosphere, a selected quantity of diluting gas. The diluting gas and sulphur containing combustion gases are turbulently mixed to provide dilution of the sulphur trioxide in the combined effluent from the stack. In one embodiment, the diluting gases are injected through a pipe positioned axially in the stack, below the top. A column of diluting gas is injected at high velocity into the upwardly moving combustion gases to entrain, mix with, and dilute the sulphur trioxide in the combination gases prior to escape from the stack to the atmosphere. In an improved embodiment, an annular plenum is constructed around the stack at a point upstream of the top of the stack, and a plurality of pipes are directed inwardly radially and upwardly through the wall of the stack.

Abstract: A hollow housing is mounted in a wall of the dunnage bag and defines a chamber having an exterior opening in a portion of the housing on the exterior of the bag, and an interior opening in a portion of the housing communicating with the interior of the bag. A tube is provided for supplying pressurized gas or air adjacent the housing on the dunnage bag and has an alignment frame on one end for locating the tube relative to the housing and in alignment with the chamber in the housing. The alignment frame is substantially open to permit free flow of ambient air past exterior portions of the tube into the chamber. One or more orifices are located on a portion of the tube to allow discharge of jets of high pressure gas or air therethrough.

Abstract: A hand held gun-type air injection device is provided for rapidly filling an inflatable dunnage bag with entrained ambient air to a predetermined maximum stabilized pressure level. The injection device is adapted for use specifically with a dunnage bag having a housing defining a chamber extending from an opening on the exterior of the bag to an opening in the interior of the bag. A tube assembly is provided for supplying pressurized gas or air adjacent the housing on the dunnage bag. A ring-like alignment frame is provided on one end of the tube for locating the tubing relative to the housing and in alignment with the chamber in the housing. The alignment frame is substantially open or apertured to permit free flow of ambient air past exterior portions of the tube into the chamber. One or more orifices are located on a portion of the tube to allow discharge of jets of high pressure gas or air therethrough.

Abstract: Apparatus for removing solids such as iron oxide pellets and fines from the rotating water seal trough of an annular material cooler by periodically operating an air ejector pump, which is suspended in the trough and operated at predetermined intervals and for a predetermined time; the ejector pump has associated with it a sensing apparatus both being pivotally mounted and suspended within the trough; an abnormal build-up of pellets and fines in the trough or large foreign bodies within the trough is sensed by the sensing means which actuates emergency means to override the normal pump operating cycle and maintain the pump operating and simultaneously alerting personnel to the emergency condition.

Abstract: An inlet line connected to the inlet of a hydraulic pump includes a jet pump having a Venturi nozzle though which the aspired liquid is passed, and into which a coaxial jet of liquid under higher pressure is introduced to raise, by jet-pump action, the pressure of the liquid at the pump inlet.

Abstract: Two circular rows of through channels in the walls of the pump mixing chamber serve to admit the conveying fluid into said chamber. The axes of the channels in one row are inclined to the cross-sectional plane of the mixing chamber and to the plane passing through its longitudinal axis, thus forming a vortex stage. The axes of the channels in the other row are inclined only to the cross-sectional plane of the mixing chamber, thus forming an injecting stage. The distance between the stages is selected so as to arrange the points of intersection of the channel axes of the vortex stage and the point of intersection of the channel axes of the injecting stage in one and the same plane which is perpendicular to the longitudinal axis of the mixing chamber.This pump can be used in devices for sucking in, conveying and placing loose materials, for lifting slurry in rotary drilling of wells with the well face cleaned by the indirect flushing method and in the devices for the preparation of clayey suspension.

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: Method for producing an ejector device including forming a profile rail, drilling holes in the rail to receive ejector nozzles therein and inserting the nozzles in the holes, closing the ends of the rail with end walls, and severing a desired length of the rail to produce the device.