Jet Patents (Class 417/151)
  • Patent number: 5167046
    Abstract: An induction vacuum includes a cylindrical body having an inlet plate, an outlet plate, and a vacuum connector; a nozzle detachably mountable to the inlet plate, a mixing tube detachably mountable to the outlet plate and an exhaust bell detachably mountable to the mixing tube. An induction vacuum kit includes a body, a plurality of nozzles, a plurality of mixing tubes, and at least one exhaust bell. The nozzles and mixing tubes may include identifying indicia and the kit may include instructions recommending nozzle and mixing tube combinations for achieving different vacuum properties.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: December 1, 1992
    Inventor: Ronald C. Benson
  • Patent number: 5167273
    Abstract: An interior air temperature sensing system is provided for use with a vehicle interior compartment air temperature regulating system including an ambient air inlet duct, a blower housing connected to an air inlet duct and an air temperature modifier and a blower situated within the blower housing. The blower draws air from the air inlet duct under negative pressure and conveys the air at positive pressure past the air temperature modifier to the interior compartment. The air temperature sensing system includes an air temperature sensor and a venturi valve coupled to the negative pressure area of the blower. The valve includes an inlet port, and outlet port and a venturi section extending therebetween defining a point of minimum flow area, or valve seat.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: December 1, 1992
    Assignee: Ford Motor Company
    Inventors: Joseph L. Terry, Leonard J. Flack
  • Patent number: 5160605
    Abstract: A device is disclosed for separating hydrocarbon products such as cutting oil from water. The device includes a receiving tank defining a reservoir which receives a mixture of water and oil. The oil floats above the water and thus forms an upper layer in the receiving tank. A skimmer skims the upper layer from the receiving tank and channels the skimmed portion to a pumping chamber. A venturi jet pump then pumps the skimmed portion from the pumping chamber to a settling tank which then separates the oil and water. The skimmer includes floats which vary the depth of the skimmer as a function of the liquid level in the receiving tank.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: November 3, 1992
    Assignee: Valiant Machine & Tool Inc.
    Inventor: Andrew Noestheden
  • Patent number: 5159961
    Abstract: An accessory for inflating and deflating inflatable articles comprises a conduit 13, an intake 17, an outtake 19 and an injector 35. In use, conduit 13 functions as a venturi tube for rapid inflation and deflation of inflatable articles, preferably, articles having a large, low pressure air volume. For inflation, outtake 19 is connected to the inflatable article. For deflation, intake 17 is connected to the inflated article. For inflation and deflation, a source of pressurized air, preferably, an electric air compressor is connected to injector 35.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: November 3, 1992
    Assignee: Black & Decker Inc.
    Inventors: Mark E. Snetting, Steven A. Anderson, Scott D. Price, David L. Sutton
  • Patent number: 5136739
    Abstract: A water bed having a built-in drain pipe. The water bed includes a water tight bladder which has an inlet port and an outlet port formed therein. A jet pump is connected between the inlet port and the outlet port and located in the interior of the water tight bladder such that the contents of the water tight bladder can be sucked out by providing a motive liquid at the inlet port and attaching drain tubing at the outlet port. The jet pump includes a jet nozzle, a diffuser and a spacer for aligning the jet nozzle and the diffuser. A chamber can be provided around the jet nozzle and diffuser to allow filtering of fluid drawn into the diffuser. The pump can be formed as a one-piece venturi pump element.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: August 11, 1992
    Inventor: Russell D. Ide
  • Patent number: 5117531
    Abstract: A suction or blowing apparatus and/or pneumatic conveying apparatus for different types of dust and bulk material. The apparatus includes two tubes arranged one within the other, wherein propellant air is admitted to the inner tube. To increase the suction effect, the outer tube is also connected to a propellant air-generating device. The tubes are arranged concentrically within each other and form an annular injection nozzle.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: June 2, 1992
    Assignee: Electrostar Schottle GmbH & Co.
    Inventor: Wolfgang Hentzschel
  • Patent number: 5062963
    Abstract: An improved method and apparatus for removing sludge from a spray booth tank using a single pump for withdrawing liquid including sludge from the tank. A portion of the liquid from the pump is returned to the tank through eductors for agitating liquid in the tank. At least a portion of the liquid from the pump flows through a hydrocyclone separator. Sludge from the separator is collected in a settling tank. A small portion of the clarified liquid from the separator flows through an aspirator pump to the booth tank and the remainder of the clarified liquid is returned directly to the booth tank. The aspirator pump returns excess liquid from the settling tank to the booth tank.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: November 5, 1991
    Assignee: DeVilbiss (Canada) Limited
    Inventors: John Marcinkowski, Herbert W. Bennett, Kenji Niwa
  • Patent number: 5044890
    Abstract: A fuel injection pump for internal combustion engines that has a pump interior and a final control element chamber, separated from it, the latter having an electric final control element for actuating a quantity adjusting device that determines a fuel injection quantity, parts of the final control element from which a control variable for the injection quantity is derived and which thereby serves as a material measure, are to be protected from the influence of fuel. By means of a jet pump through which a permanent propulsive flow flows and which is part of a flow conduit, the static pressure at the intake bore of the jet pump that communicates with the final control element chamber is lowered, and this negative pressure is utilized for evacuating the fuel entering the final control element chamber in the form of a leakage flow along the bearing of a control shaft.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: September 3, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Alf Loeffler, Wolfgang Fehlmann, Eberhard Fiedler, Wolfgang Geiger, Helmut Laufer
  • Patent number: 4963073
    Abstract: A device for use as a convenient, easy-to-use, and inexpensive pump for pumping water is disclosed which uses water pressure from a standard garden hose connected from a tap to the pump apparatus as the motive power to pump between seven and eleven times the volume of the water from the garden hose from a reservoir into a discharge hose which is any of several different standard sizes and which is connected to the pump apparatus. The water from the garden hose flows into the pump through a pump inlet having a reduced diameter venturi, which increases the velocity of the water, into a pumping chamber with the resulting drop in pressure creating a vacuum in the pumping chamber. The vacuum in the pressure chamber draws water from a reservoir the pump is placed in through a reservoir inlet chamber into the pumping chamber in the pump body, and the water exits the pumping chamber through a pump outlet located on the opposite side of the pumping chamber from the pump inlet.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: October 16, 1990
    Inventors: George Tash, Warren Hartmann
  • Patent number: 4960364
    Abstract: The present invention relates summarily to a mult-ejector device with at least one ejector part (2) including at least one array of ejector jets (18, 19, 20) placed one after the other in the ejector part (2). Under the action of compressed air flowing through them, the jets (18, 19, 20) generate a subpressure in chambers (11, 12) connected to the jets. The chambers (11, 12) are in communication via openings (13, 15, 17) provided with non-return valves (14, 16) with a vacuum collection chamber (9), to which the tool or the like driven by the ejector device is connected. The ejector part (2) is an element in the shape of a plate formed by moulding or in some other way, where the ejector jets (18, 19, 20) and the valve chambers (11, 12) are formed integrally in the plate-like piece.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: October 2, 1990
    Inventor: Peter Tell
  • Patent number: 4947806
    Abstract: There is provided for use in a reciprocating engine, a motive flow pump to provide a constant suction pressure in order to draw oil from a breather oil recovery device back to the engine oil reservoir. The motive power for this pump is provided from the flow of oil from a different source.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: August 14, 1990
    Assignee: Machen, Inc.
    Inventors: Stephen R. Speer, Jan G. Norton, James D. Wilson
  • Patent number: 4943211
    Abstract: A sand filter cleaning apparatus includes a suction head having an enlarged intake opening for sucking materials thereinto attached to an exhaust hose for receiving material sucked into the suction head. A water pressure hose is connected between a water source under pressure and the suction head for directing water under pressure into the suction head. The suction head has a jet nozzle positioned to direct water under pressure from the water pressure hose towards the exhaust hose to create a suction therein in the suction head opening and a second nozzle for directing water under pressure in front of the opening of the suction head to thereby stir up material in front of the suction head. The exhaust hose is positioned to increase the pressure with a siphon by having a longer drop leg than the intake leg of the exhaust hose.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: July 24, 1990
    Inventor: Alan D. V. Boegh
  • Patent number: 4940392
    Abstract: A jet pump comprises a nozzle (1) for a high speed primary flow, a mixing tube (2) into which the primary flow is directed by the nozzle (1), and an inlet (3) to the mixing tube (2) for a secondary flow, the inlet (3) surrounding the primary flow nozzle (1). Means (2') is provided for changing the cross section of the mixing tube (2) abruptly in order to produce a rise in static pressure immediately downstream, thereby increasing mixing of the primary and secondary flows, stabilizing the mixing process and enabling significant noise reduction when used in engine testing apparatus.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: July 10, 1990
    Assignee: British Aerospace PLC
    Inventor: Richard C. Adkins
  • Patent number: 4931225
    Abstract: The present invention relates to an improved method and apparatus for dispersing a gas into a liquid. Gas is injected into a liquid and the flowing gas-liquid mixture is accelerated by a flow area contraction to at least sonic flow velocity, and subsequently decelerated by a flow area expansion to subsonic velocity. The attendant shock waves disperse the gas in the liquid. Preferred embodiments include off-centering the gas injection direction from the centerline of the contracting flow area and controlling the pressure at the exit of the expanding flow area.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: June 5, 1990
    Assignee: Union Carbide Industrial Gases Technology Corporation
    Inventor: Alan T. Cheng
  • Patent number: 4898517
    Abstract: An ejector (10) is provided, which has an easily replaceable nozzle unit (22). The ejector includes a steam chest (16), a suction chamber (18), a diffuser (20) and a nozzle unit, wherein the steam chest has an outside end wall (24) having an opening with a removable cap (32) for removing the nozzle unit and for replacing the nozzle unit, or a duplicate thereof, through the opening. The steam chest has an axis and has a coaxial steam chest cavity (29) with an inlet opening (34) for steam. The suction chamber connects coaxially to the steam chest and has a coaxial suction chamber cavity with an inlet opening. The diffuser is coaxial with the steam chest and the suction chamber and has an elongate coaxial passage for exhausting the suction chamber cavity. The nozzle unit interconnects the steam chest cavity and the suction chamber cavity is coaxial therewith.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: February 6, 1990
    Inventor: Olof A. Eriksen
  • Patent number: 4892463
    Abstract: The invention relates to an ejector to be placed in rooms which are inaccible to human beings. It comprises a casing with a diffuser bore, a head chamber, and a space for a working fluid including a lateral working fluid connection. The working fluid nozzle comprises a working fluid chamber which is connected through bores with the working fluid space and, inside the casing, it seals the head chamber from the working fluid space. The nozzle of the working fluid chamber opens into the head chamber and faces the diffuser bore. The invention is characterized in that the ends of the casing and of the working fluid nozzle each are embodied as a radial flange which flanges are held together by bolts adapted to be operated by a manipulator. At the end of the working fluid nozzle flange there is a handle which is operable by a manipulator to pull the working fluid nozzle out of the casing and to reintroduce it, respectively.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: January 9, 1990
    Assignee: Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen mbH
    Inventors: Hans Meyer, Manfred Steegmanns
  • Patent number: 4886031
    Abstract: In a dashpot for fuel tanks the cover of the intake chamber of the dashpot is dome-shaped and the suction filter is arranged at an interval below the cover. This arrangement prevents gas bubbles also being drawn off via the suction filter together with fuel.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: December 12, 1989
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Dieter Scheurenbrand, Helmut Wawra
  • Patent number: 4865518
    Abstract: This invention relates to ejector pumps, thrust- and lift-augmenting ejectors, and, more generally, to devices that are capable of inducing the flow of a fluid through direct transfer of energy and momentum to it from jets of another fluid. The efficiency of the energy exchange is increased if it is made to take place, at least in part, through the nondissipative work of interface pressure forces. This invention describes a method and apparatus for the generation, control, and utilization of this nondissipative component. The method described here imparts a transverse, paddle-like motion to the energizing jets without, however, imparting the same motion to the fluid particles that make up the jets themselves, hence at no cost in energy input. Energy is transferred from these "fluid paddles" to the surrounding fluid largely through the work of interface pressure forces.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: September 12, 1989
    Inventor: Joseph V. Foa
  • Patent number: 4846617
    Abstract: A jet pump, in particular for hot-water heating systems or water-heating systems with return-flow mixing has a feeder head which is connected with a housing containing the receptor nozzle 13. The housing (7) contains a mixing tube (14) which is connected via a diffuser if needed with a second line connection (12), is coaxial with an injector nozzle (10) and adjoins the receptor nozzle (13); the mixing tube (14) also extends longitudinally through a chamber (22) of the housing in which at least a third line connection (18) and, if desired, a fourth line connection (19), directed respectively transversely to the mixing tube, discharges.In order to attain, e.g.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: July 11, 1989
    Assignee: Mr. Helmut Balz
    Inventor: Gerd Ehrhardt
  • Patent number: 4838307
    Abstract: A bottom wall of a fuel tank body defines an inwardly extending projection which separates at least a lower segment of an interior of the fuel tank body into a first fuel chamber and a second fuel chamber. Fuel is pumped out of the first fuel chamber. A portion of the fuel pumped out of the first fuel chamber is returned to the first fuel chamber by way of an ejector pump disposed within the fuel tank body. The ejector pump is driven by the return fuel. A communication pipe connects the second fuel chamber to the ejector pump. The ejector pump transports fuel from the second fuel chamber to the first fuel chamber via the communication pipe.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: June 13, 1989
    Assignees: Nissan Motor Company, Limited, Jidosha Denki Kogyo Kabushiki
    Inventors: Michiaki Sasaki, Kiyokazu Yamamoto
  • Patent number: 4820131
    Abstract: A shallow well centrifugal pump having a casing forming a fluid flow cavity and having a fluid intake end with a threadless bore and a suction inlet communicating with the cavity through the bore, and a diffuser disposed in the casing cavity and spaced from the casing intake end. The diffuser has a threadless opening defined therein leading to an impeller. A venturi nozzle assembly is supported in the casing cavity between the casing intake end and the diffuser. The assembly has threadless opposite end portions disposed in slidably removable slip fitted relation within the casing intake end and diffuser in the respective threadless bore and opening therein. Endless sealing elements preferably in the form of O-rings are fitted about the respective threadless opposite end portions of the venturi nozzle assembly for providing hermetic seals between the assembly opposite end portions and the casing intake end and the diffuser.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: April 11, 1989
    Assignee: Wayne/Scott Fetzer Company
    Inventor: Charles S. Johnson
  • Patent number: 4792284
    Abstract: A device for creating a pressure difference in the flow of a fluid which may be a liquid or a gas and a number of technical applications. The fluid medium is fed along the longitudinal axis of a double cone, consisting of two coaxial hollow cones linked by their smallest faces. At the narrowest point of the double cone a depression occurs in the fluid flow which is made accessible to the outside by means of a lateral connection piece. Compared with a conventional venturi the present double cone offers increased efficiency owing to its special shape, which is defined by geometric parameters. The high efficiency of the double cone, which can be further improved by a special embodiment, makes the device suitable for a number of technical applications.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: December 20, 1988
    Inventors: Paul W. Straub, John H. Stark, Michel Vermot
  • Patent number: 4761970
    Abstract: An ejector-type vapor compression refrigeration system wherein the coefficient of performance is maximized by the selection of the propellant and refrigerant fluids, the propellant being a perfluorocarbon immiscible with the refrigerant and having a relatively low heat of vaporization and high molecular weight and the refrigerant having a relatively high heat of vaporization and low molecular weight.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: August 9, 1988
    Assignee: Calmac Manufacturing Corporation
    Inventor: Calvin D. MacCracken
  • Patent number: 4748817
    Abstract: A method for the production of microfine frozen particles comprises filling a vessel with a cold gas which may be a cooled gas or mixed gas obtainable by mechanical refrigeration of a refrigerant gas, air, or the like, atomizing a material to be frozen, such as water, into the cold gas so that the atomized particles become frozen by heat exchange with the cold gas, and collecting the fine frozen particles thus produced.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: June 7, 1988
    Assignee: Taiyo Sanso Co., Ltd.
    Inventors: Hiroyuki Oura, Takeki Hata, Masuo Tada
  • Patent number: 4723890
    Abstract: An articulated jet pump is provided usable more particularly in TFL techniques for activating hydrocarbon or water-producing wells. The pump of the invention may be positioned in production tubing by travelling through this tubing as far as the chosen position and comprises a nozzle adapted for being fed with drive fluid, the nozzle having an outlet orifice which cooperates with a mixer-diffuser assembly placed in an extension of the nozzle. The pump is formed from at least two elements articulated together at the level of the mixer.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: February 9, 1988
    Assignee: Institut Francais de Petrole
    Inventors: Jacques Corteville, Frederic Hoffmann, Andre Pauc
  • Patent number: 4673335
    Abstract: A hydrokinetic amplifier 10 that combines a liquid and vapor to produce an amplified liquid output pressure is used for compressing or liquifying gas by admitting gas to be compressed into a region where the liquid and vapor are in contact and the vapor is accelerating the liquid. The admitted gas is allowed to merge with the liquid and vapor and become compressed or liquified within the pressurized liquid output. A mixture of liquid and compressed gas can be used directly for purposes such as cleaning, or the liquid and compressed or liquified gas phases can be separated in the output so that either one or both can be used.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: June 16, 1987
    Assignee: Helios Research Corp.
    Inventor: Carl D. Nicodemus
  • Patent number: 4644746
    Abstract: A gas compressor is provided having a source of supersonic velocity gases acting to accelerate inlet gases through a mixing region and diffuser. The inlet gas is introduced into the mixing chamber through a converging-diverging nozzle, causing said gas to accelerate to supersonic velocity. An injection of coolant is provided into the resulting gas stream to cause a decrease in its stagnation temperature and an increase in its stagnation pressure. Also provided is a means for modifying the nuclear spin orientations of the gases involved in the mixing region upstream of the combustion chamber to increase the stagnation pressure and decrease the stagnation temperature of the gas flowing into the combustion chamber. The gas compressor can be utilized in a jet engine for producing a flow of pressurized gases which may be expanded through a thrust producing nozzle.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: February 24, 1987
    Assignee: L. W. Fleckenstein, Inc.
    Inventor: Neil W. Hartman
  • Patent number: 4632649
    Abstract: A gas jet pump having a housing and a mixing nozzle holder which, in the area of their flange connection, form a mounting for a mixing nozzle. The mounting comprises on the one hand a clamping groove formed by both flanges in their parting plane, and on the other hand an annular groove in the periphery of the mixing nozzle and a ring made of elastic material located in both grooves. This secures both the axial position of the mixing nozzle relative to the housing and also the sealing.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: December 30, 1986
    Assignee: Sihi GmbH & Co. KG
    Inventors: Udo Segebrecht, Siegfried Auschrat
  • Patent number: 4631003
    Abstract: A fluid medium pump includes a piston having a hollow interior for receiving a connecting rod adapted to open and close a passage through the piston selectively in accordance with the stroke of the rod. User apparatus includes the pump and various pump heads for effecting spraying, foaming and container pressurization. Control mechanism for pump operation renders the pump inoperative for transport, selectively operable upon triggering or continuously operable.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: December 23, 1986
    Assignee: Spray-All, Inc.
    Inventors: Edward B. Chamberlin, Edward M. Brown, Edward J. Towns
  • Patent number: 4613284
    Abstract: A wind pump has a liquid supply pipe connected with a convex pipe through a Venturi pipe open to wind, and a delivery pipe connected with the convex pipe and provided with a pumping-out element for elevating a liquid portion drawn into the convex pipe, and the pump is provided with a liquid supply delaying element for delaying the liquid supply from the inlet pipe into the convex pipe and subsequent completing the liquid portion in the latter during periods of weak wind. The delivery pipe is composed of a plurality of vertical pipe portions interconnected by intermediate accummulating container elements.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: September 23, 1986
    Inventor: Iosif Baumberg
  • Patent number: 4580948
    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.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: April 8, 1986
    Assignee: Helios Research Corp.
    Inventor: Frederick W. Schmidlin
  • Patent number: 4573877
    Abstract: An arrangement for elevating liquids with the aid of wind has an upper delivery pipe with an upper end connected to a pumping-out device, a lower supply pipe introducable into a water source and having an upper end connected with a constriction of a Venturi pipe, and a downwardly convex pipe connecting an outlet diffuser of the Venturi pipe with the lower end of the delivery pipe.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: March 4, 1986
    Assignee: Dammin Software and Technology
    Inventor: Iosif Baumberg
  • Patent number: 4554786
    Abstract: A vacuum source device of vacuum booster is disclosed. The device includes an air ejector having an air inlet communicated with the atmosphere, an air outlet connected to a vacuum pick-up port opening to the portion of the intake system of an internal combustion engine downstream of a throttle valve, and a pressure reduction chamber connected to a vacuum chamber of the vacuum booster. A by-pass passage connecting between the vacuum pick-up port and the vacuum chamber of the vacuum booster by detouring the diffuser of the air ejector imposes a smaller flow resistance than the diffuser. A first check valve is disposed in the by-pass passage, while a second check valve is disposed between the by-pass passage and the vacuum chamber.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: November 26, 1985
    Assignees: Nissin Kogyo Kabushiki Kaisha, Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroo Takeuchi, Kazuo Miyazaki
  • Patent number: 4548525
    Abstract: An aqueous slurry of spent drilling mud and/or produced water is diluted prior to free discharge into a body of receiving water by expelling a jet stream of such slurry into an open-ended submerged mixing conduit. The jet stream aspirates and entrains the surrounding water within the conduit and is then passed through a mixer stage prior to exiting the opposite end of the tube.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: October 22, 1985
    Assignee: Atlantic Richfield Company
    Inventor: William F. Priebe
  • Patent number: 4545739
    Abstract: Several expedients can start-up a hydrokinetic amplifier powered by operating vapor at subatmospheric pressure. One expedient connects an evacuated region to the discharge region of suction chamber 13 so that subatmospheric pressure vapor flows through vapor input nozzle 12 and into the suction chamber. At this time, liquid admitted through nozzle 11 forms a free liquid jet 20 so that vapor impinges on and condenses in jet 20. Once the collapse of condensing vapor produces a suction in chamber 13, the amplifier starts and the evacuated region disconnects from chamber 13. By another expedient, super atmospheric pressure vapor is condensed in jet 20 to establish a suction, whereupon the vapor supply is switched to subatmospheric pressure operating vapor that is drawn in by the suction produced by collapse of the start-up vapor. Another expedient uses high pressure liquid to produce a low pressure entrainment jet for drawing subatmospheric pressure operating vapor into suction chamber 13.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: October 8, 1985
    Assignee: Helios Research Corp.
    Inventor: Carl D. Nicodemus
  • Patent number: 4543047
    Abstract: A horizontal type rotary compressor includes a lubricant distribution system which does not require a check valve for preventing the return of lubricant from the frictional bearing surfaces to the blade chamber. An eccentric blade within a blade chamber pumps lubricant out of the blade chamber through an aperture in one wall thereof. A dispensing pipe communicates the aperture of the blade chamber with the frictional bearing surfaces and includes an opening in the pipe adjacent the blade chamber. Reciprocal movement of the blade causes lubricant to be sucked through the aperture of the blade chamber and discharged from the blade chamber into the dispensing pipe. The opening in the pipe permits a larger amount of lubricant to pass into the pipe than out of the pipe, thereby effectively acting as a check valve and negating the need for a separate check valve in the lubricant distribution system.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: September 24, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Masumi Hasegawa
  • Patent number: 4543046
    Abstract: A horizontal type rotary compressor includes a lubricant distribution system which does not require a check valve for preventing the return of lubricant from the frictional bearing surfaces to the blade chamber. An eccentric blade within a blade chamber pumps lubricant out of the blade chamber through an aperture in one wall thereof. A dispensing pipe communicates the aperture of the blade chamber with the frictional bearing surfaces and includes an opening in the pipe adjacent the blade chamber. Reciprocal movement of the blade causes lubricant to be sucked through the aperture of the blade chamber and discharged from the blade chamber into the dispensing pipe. The opening in the pipe permits a larger amount of lubricant to pass into the pipe than out of the pipe, thereby effectively acting as a check valve and negating the need for a separate check valve in the lubricant distribution system.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: September 24, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Masumi Hasegawa
  • Patent number: 4519899
    Abstract: In the purification of oil used for example in light metal rolling, and contaminated by abraded particles, a coagulating agent, for example an aqueous soda solution, is added by means of a dosaging device (7) and mixed in a device (5) which comprises a static dispersing device (8) with a jet pump (9) connected thereafter with a recirculation loop (10). The mixing is normally carried out at an elevated temperature and a heating step (3,4) included. After mixing, the coagulates formed are separated, typically in a centrifuge (14). The invention is particularly suited to the purification of the rolling oil occurring in the manufacture of aluminium foils.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: May 28, 1985
    Assignee: Sulzer-Escher Wyss Ltd.
    Inventors: Jakob Oertle, Bruno Mulhaupt
  • Patent number: 4472121
    Abstract: A horizontal rotary type compressor having a rotary compression unit hermetically contained in a closed shell has its lubricating parts effectively lubricated by lubricant oil being fed to the central lubrication bore formed axially in the crankshaft through a lubricant oil feed tube which is opened at one end within the lubricant oil accumulated on the bottom of the closed shell and adapted to be intermittently subjected to the refrigerant gas discharged from the compression unit.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: September 18, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideharu Tanaka, Koji Ishijima, Toshihide Koda
  • Patent number: 4468172
    Abstract: A jet pump plug for a multi-nozzle jet pump is disclosed wherein the nozzles are accessible through a relatively small opening in the pump structure. The plug comprises a plurality of sections, each including a closure plate and a lever coupled thereto. Each plug section is constructed so as to allow that section to be separately introduced into the opening to the vicinity of the nozzles from a location which may be remote from the pump. The closure plates are manipulated through their attached levers from a remote location to the end of sealing the nozzles with them. The first plug section introduced through the opening includes means for alignment relative to the jet pump structure so as to orient its closure plate with respect to the nozzles. The remaining plug section is supported by the first plug section upon being introduced into the opening.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: August 28, 1984
    Assignee: General Electric Company
    Inventors: Robert C. Dixon, Ronald D. Poland, Bradley G. Stoll, Bob Y. Okashima
  • Patent number: 4435129
    Abstract: A vortex injector is made of cylindrical and partial cylindrical segments whose axes are offset from each other thereby to provide a simple and inexpensive construction. A high pressure inlet is disposed axially of a larger mixing pipe which in turn is eccentric to the casing. A low pressure inlet pipe is disposed tangentially of the casing and communicates with the mixing pipe downstream of the high pressure inlet. The intermediate pressure mixed gases enter the outlet casing eccentrically and are discharged therefrom tangentially.
    Type: Grant
    Filed: September 22, 1981
    Date of Patent: March 6, 1984
    Inventors: Gyorgy Mika, Denes Csako, Laszlo Paczuk, Laszlo Beres-Deak, Laszlo Novotny
  • Patent number: 4416856
    Abstract: Process and device for cooling a mixture of polymer and monomer from a reactor in which ethylene is polymerized or copolymerized at a pressure greater than 1,000 bars between a pressure-reduction valve located downstream of the reactor and a medium pressure separator. The cooling is achieved by injecting monomer at a pressure below that of the separator using a device with a nozzle distance S.sub.1 and corresponding cross-section A.sub.1 the mixture from the reactor passes, a convergent mixing zone in which the mixture is mixed with the monomer injected, which is supplied at a flow rate q, and a diffuser of throat distance S.sub.3 and corresponding cross-section A.sub.3, which makes it possible to bring the mixture to the pressure of the separator. The dimensions of the device are such that the ratio Q/A.sub.1 is between 0.20 and 1.35 t/hr.mm.sup.2 and the ratio ##EQU1## is between 0.1 and 0.3 t/hr.mm.sup.2.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: November 22, 1983
    Assignee: Societe Chimique des Charbonnages--CdF Chimie
    Inventors: Pierre Durand, Pierre Charlon, Guy Jouffroy
  • Patent number: 4380418
    Abstract: An aspirator using positive pressure from a suitable source generates a vacuum pressure when the primary source of vacuum pressure, typically the engine intake manifold, prodcuces insufficient vacuum pressure to operate a device such as a road speed control servomotor. The aspirator assembly is connected to the source of positive pressure and the engine intake manifold as well as to atmosphere and to the device to be operated by vacuum power. When there is sufficient intake manifold vacuum pressure for the desired purpose, there is no flow through the aspirator and the engine intake manifold supplies all of the vacuum needs of the servomotor. When aspirator vacuum pressure is required due to insufficient manifold vacuum pressure, the aspirator is opened to generate aspirated vacuum pressure and the connection between the servomotor and manifold vacuum is closed. The aspirated air is delivered to the engine intake manifold.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: April 19, 1983
    Assignee: General Motors Corporation
    Inventors: Daniel A. Crawford, Wayne A. Levijoki
  • Patent number: 4352637
    Abstract: A main pump has a jet pump powered by the main pump output for forcing a portion of the cooler inlet fluid into the casing chamber of the main pump in order to cool the main pump during periods of low flow.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: October 5, 1982
    Assignee: General Signal Corporation
    Inventor: Charles O. Weisenbach
  • Patent number: 4315565
    Abstract: This is a high-velocity scavenge pump and spray nozzle arrangement utilized for spraying oil onto an oil spray type clutch utilized in vehicles such as industrial trucks and the like. It is characterized by the utilization of the return fluid from an hydraulic device, such as a power steering motor, wherein a velocity block is utilized with a suction line scavenging oil from the crankcase and utilizing the oil scavenged from the return line for the clutch spray, returning the excess from the suction line to the hydraulic fluid tank which supplies the power device concerned.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: February 16, 1982
    Inventor: Leonard J. Low
  • Patent number: 4278405
    Abstract: Energy amplifier apparatus includes a pair of vertically extending concentric cylinders, with air entrained in water flowing downwardly through the inner cylinder to a separator where the air is separated from the water. The falling water compresses the entrained air and a separator in the inner cylinder is used to separate the compressed air from the water, with the water flowing upwardly between the inner and outer cylinders and the compressed air flowing upwardly in a separate conduit from the upper portion of the inner cylinder.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: July 14, 1981
    Inventor: Lonnie L. Angle
  • Patent number: 4264212
    Abstract: According to the present invention a static mixer comprises a passage for the flow therethrough of a liquid or a suspension of particulate solid in a liquid, said passage having in the direction of flow a lengthwise divergent portion followed by a lengthwise convergent portion. An inlet for fluent material to be mixed with the suspension may converge with and project into the divergent portion. Cement and coal slurry may be mixed in this apparatus.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: April 28, 1981
    Assignee: Blue Circle Industries Limited
    Inventor: David J. Tookey
  • Patent number: 4068802
    Abstract: A spraying system for controlling air-borne particulate matter, such as coal dust, has a housing including a diverging diffuser portion into which a spray of liquid is injected. The spray causes a flow of air to pass into the diffuser portion and mix with the liquid to form a mist which passes from the diffuser portion to form a diverging jet downstream of the outlet of the diffuser portion. This diverging jet causes air molecules to be drawn into the mist and removed from the air through which the mist is passing.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: January 17, 1978
    Inventor: Shelby H. Goings
  • Patent number: 4060355
    Abstract: A process and apparatus for the manufacture of fibers from fusible materials and particularly materials of low viscosity. The melt and gaseous flow medium is passed through a Laval-nozzle at a supersonic speed. The nozzle and speed are so selected as to cause an abrupt temperature drop in the flow medium within the nozzle which causes the melt to solidify into fibers.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: November 29, 1977
    Assignee: Firma VKI-Rheinhold & Mahla AG
    Inventors: Alfred H. Walz, Paul-Jurgen Hahn
  • Patent number: RE32669
    Abstract: Energy amplifier apparatus includes a pair of vertically extending concentric cylinders, with air entrained in water flowing downwardly through .Iadd.a conduit within .Iaddend.the inner cylinder to a separator where the air is separated from the water. The falling water compresses the entrained air and a separator in the inner cylinder is used to separate the compressed air from the water, with the water flowing upwardly between the inner and outer cylinders and the compressed air flowing upwardly in a separate conduit from .[.the upper portion of.]. the inner cylinder.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: May 17, 1988
    Inventor: Lonnie L. Angle