Jet Pump With Motive Fluid Generating Pump Patents (Class 417/76)
  • Patent number: 11009838
    Abstract: A method and system for co-ordinating control of a plurality of sensorless devices. Each device includes a communication subsystem and configured to self-detect one or more device properties, the device properties resulting in output having one or more output properties. The method includes: detecting inputs including the one or more device properties of each device, correlating, for each device, the detected one or more device properties to the one or more output properties, and co-ordinating control of each of the devices to operate at least one of their respective device properties to co-ordinate one or more output properties for the combined output to achieve a setpoint. In some example embodiments, the setpoint can be fixed, calculated or externally determined.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 18, 2021
    Assignee: S.A. Armstrong Limited
    Inventor: Marcelo Javier Acosta Gonzalez
  • Patent number: 9120580
    Abstract: A fuel stabilization unit includes a fuel inlet and outlet, an oxygen permeable membrane and a vacuum source. The vacuum source employs an ejector and a high pressure fluid to generate an oxygen partial pressure differential across the membrane. A fuel deoxygenation system includes a fuel stabilization unit and a vacuum source. The fuel stabilization unit has a fuel flow path, a vacuum chamber and an oxygen permeable membrane separating the fuel flow path and the vacuum chamber. The vacuum source employs an ejector and a high pressure fluid to reduce pressure in the vacuum chamber to generate an oxygen partial pressure differential across the oxygen permeable membrane. A method for deoxygenating a fuel includes delivering a high pressure fluid to an ejector, generating an oxygen partial pressure differential across an oxygen permeable membrane using only the ejector and removing oxygen from the fuel using the oxygen partial pressure differential.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: September 1, 2015
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Parthasarathy Sampath
  • Publication number: 20150136997
    Abstract: An air blowing device 1 includes: a main body housing 2 to open a suction inlet 4a and a jet outlet 5a of an air; and an air blower 3 to be provided in a lower portion in the main body housing 2 and to circulate the air that is sucked from the suction inlet 4a towards the jet outlet 5a. The main body housing 2 is in a column shape from below to above, and the jet outlet 5a is formed in a slit shape in a vertically long rectangular shape along a side wall of the main body housing 2 and also is arranged to expel an air in an approximately transverse direction.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 21, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroaki Kubo, Yasuhiro Nunotani, Katsushi Morimoto
  • Publication number: 20150118069
    Abstract: A jet propelled watercraft includes a vessel body, a jet propulsion mechanism, a bucket, and a controller. The jet propulsion mechanism is configured to propel the vessel body. The controller is configured and programmed to control a thrust of the jet propulsion mechanism to propel the vessel body. The bucket is configured to move to a retracted position spaced away from the jet of water ejected from the jet propulsion mechanism and a jet receiving position to receive the jet of water ejected from the jet propulsion mechanism. The controller is configured and programmed to change an increase rate of the thrust in accordance with a forward speed of the vessel body until the thrust is increased to a predetermined value after the bucket has been moved from the retracted position to the jet receiving position.
    Type: Application
    Filed: September 16, 2014
    Publication date: April 30, 2015
    Inventor: Yoshimasa KINOSHITA
  • Patent number: 8985965
    Abstract: A cyclonic elevator tube comprising a manifold which supplies fluid under pressure via an annular transition ring with multiple, circumferentially spaced jet orifices. These orifices are set at inwardly and circumferentially directed compound angles for ejecting vortex jets of pressurized fluid through the elevator, to ultimately cause transportation of fluid material through the tubes. This apparatus comprises: a cylindrical chamber; a plurality of helically shaped venturi tubes spaced around the internal circumference of the chamber; a manifold connected to the inlet ends of the venturi tubes; and a high pressure gas supply connected to the manifold. The helix can be right or left handed and preferably the venturi tubes extend for less than one turn of the helix. The angle that the tangent of the helix makes with the longitudinal axis of the chamber is between 1° and 89°. The internal circumference of the chamber may be larger at the inlet end than at the outlet end.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: March 24, 2015
    Inventor: Greg J. Vlachos
  • Publication number: 20140360058
    Abstract: A pump apparatus comprises a primary pump having a relatively low pressure fluid input and a relatively high pressure fluid output and means, associated with said primary pump fluid input, operable where the ambient pressure is insufficient substantially to prevent cavitation in the primary pump, to locally increase the pressure at said primary pump fluid input
    Type: Application
    Filed: December 21, 2012
    Publication date: December 11, 2014
    Inventor: Jonathan Ralph Manchester
  • Patent number: 8882472
    Abstract: A fuel pump module includes a reservoir and a jet pump. The reservoir includes first and second prime sockets and the jet pump includes a first tube defining a first nozzle and a second tube defining a second nozzle. The first tube has a lower end disposed in the first prime socket and an upper end configured to engage a first line routed to a first position outside of the reservoir in a fuel tank. The second tube has a lower end disposed in the second prime socket and an upper end configured to engage a second line routed to a second position outside of the reservoir in the fuel tank.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 11, 2014
    Assignees: DENSO International America, Inc., Denso Corporation
    Inventors: Patrick Powell, Kishore Tammineedi
  • Publication number: 20140255217
    Abstract: A device for blowing air by a nozzle assembly includes a base seat for generating an air stream to supply air flow and a nozzle assembly supported by the base seat and comprising a slot-shaped opening for blowing air. An airflow passage is connected between the base seat and the nozzle assembly. An intake end of the airflow passage is opened on the outer surface of the base seat, and an output end is connected to the nozzle assembly by a pivot component. An intake end of the nozzle assembly is connected to an output end of the base seat by the pivot component. An impeller and an electric motor for driving the impeller to rotate are provided within the base seat. The nozzle assembly is rotatably fixed on the base seat by the pivot component.
    Type: Application
    Filed: April 29, 2014
    Publication date: September 11, 2014
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventor: Dezheng LI
  • Publication number: 20140246517
    Abstract: A pressure washer includes a prime mover, a water pump, the water pump including a pump inlet for receiving fluid from a fluid source and a pump outlet for supplying a pressurized primary fluid, a jet pump including a primary fluid inlet fluidly coupled to the pump outlet, a secondary fluid inlet, and a fluid outlet, and a spray gun configured to be fluidly coupled to the fluid outlet of the jet pump, the spray gun including a spray gun outlet having a variable effective flow area. Wherein, in operation, in a high pressure operating mode, the pressurized primary fluid flows through the jet pump and exits through the fluid outlet of the jet pump, and in a high flow operating mode, the pressurized primary fluid flows through the jet pump and entrains a secondary fluid supplied through the secondary fluid inlet, resulting in a combined fluid flow.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Briggs & Stratton Corporation
    Inventor: Jason J. Raasch
  • Patent number: 8814531
    Abstract: A pressure washer includes a prime mover, a water pump, the water pump including a pump inlet for receiving fluid from a fluid source and a pump outlet for supplying a pressurized primary fluid, a jet pump including a primary fluid inlet fluidly coupled to the pump outlet, a secondary fluid inlet, and a fluid outlet, and a spray gun configured to be fluidly coupled to the fluid outlet of the jet pump, the spray gun including a spray gun outlet having a variable effective flow area. Wherein, in operation, in a high pressure operating mode, the pressurized primary fluid flows through the jet pump and exits through the fluid outlet of the jet pump, and in a high flow operating mode, the pressurized primary fluid flows through the jet pump and entrains a secondary fluid supplied through the secondary fluid inlet, resulting in a combined fluid flow.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: August 26, 2014
    Assignee: Briggs & Stratton Corporation
    Inventor: Jason J. Raasch
  • Patent number: 8784648
    Abstract: A method is provided for producing vacuum in a vacuum oil-stock distillation column and includes pumping a gas-vapor medium out of a column by an ejector into a condenser; feeding a gas mixture and a high-pressure gas into a second gas-gas ejector from which the vapor-gas mixture is fed into a second condenser. A condensate is directed from the condensers into a separator in which the condensate is separated into a water-containing condensate and a hydrocarbon-containing condensate. The hydrocarbon-containing condensate is removed while the water-containing condensate is fed into a steam generator in which heat is supplied to the water-containing condensate from a hot distillate removed from the vacuum column and steam is produced from the water-containing condensate, the steam is fed as a high-pressure gas into the gas-gas ejectors. A plant for carrying out the method is also provided.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: July 22, 2014
    Inventor: Valery Grigorievich Tsegelsky
  • Patent number: 8734121
    Abstract: A flow guide structure for a bladeless air fan. The bladeless air fan includes a host and an airflow guiding frame. The host includes an airflow generator. The airflow guiding frame is connected to the host and includes an air discharging portion which has an airflow guiding passage inside to communicate with the airflow generator. The air discharging portion also includes an airflow gathering wall, an inner ring compression wall and an outer ring compression wall extended forwards from two ends of the airflow gathering wall. From the junctions of the airflow gathering wall and inner ring compression wall and outer ring compression wall, the inner ring compression wall and outer ring compression wall are spaced from each other at a decreasing interval between them, and the inner ring compression wall and outer ring compression wall also have distal ends forming a front air outlet to discharge airflow forwards.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 27, 2014
    Assignee: Kable Enterprise Co., Ltd.
    Inventor: Samson Tsen
  • Patent number: 8726886
    Abstract: A fuel supply system includes a fuel supply pump and a jet pump utilizing flow from the supply pump to supply fuel to a fuel pump reservoir from a main fuel tank. The jet pump includes a body with a main inlet coupled to an outlet of the supply pump provided at its upper end. A nozzle is positioned on an interior of the body. A mixing tube is defined by the body downstream of the nozzle, and defines a channel extending along an axis. A suction inlet of the body is in fluid communication with the mixing tube channel. A jet pump outlet formed in the body is positioned at or above an upper portion of the reservoir such that fuel pours down into the reservoir. The body redirects fuel in a direction away from the axis for discharge through the jet pump outlet.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Paul Mason
  • Publication number: 20140037467
    Abstract: A pressure washer includes a prime mover, a water pump, the water pump including a pump inlet for receiving fluid from a fluid source and a pump outlet for supplying a pressurized primary fluid, a jet pump including a primary fluid inlet fluidly coupled to the pump outlet, a secondary fluid inlet, and a fluid outlet, and a spray gun configured to be fluidly coupled to the fluid outlet of the jet pump, the spray gun including a spray gun outlet having a variable effective flow area. Wherein, in operation, in a high pressure operating mode, the pressurized primary fluid flows through the jet pump and exits through the fluid outlet of the jet pump, and in a high flow operating mode, the pressurized primary fluid flows through the jet pump and entrains a secondary fluid supplied through the secondary fluid inlet, resulting in a combined fluid flow.
    Type: Application
    Filed: July 9, 2013
    Publication date: February 6, 2014
    Inventor: Jason J. Raasch
  • Patent number: 8613601
    Abstract: A bladeless fan assembly includes a nozzle mounted on a base housing a motor and an impeller driven by the motor for creating an air flow. The nozzle includes an interior passage for receiving the air flow, a mouth for emitting the air flow, and a plurality of stationary guide vanes located within the interior passage and each for directing a portion of the air flow towards the mouth. The nozzle defines an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 24, 2013
    Assignee: Dyson Technology Limited
    Inventor: Daniel Francis Helps
  • Patent number: 8387658
    Abstract: A delivery unit (4) has a compensating baffle pot (5) provided with a fuel pump (6) arranged therein and a jet sucking pump (8) for conveying a liquid to the baffle pot (5). The jet sucking pump (8) has a propulsion jet nozzle (13) provided with an opening, a mixing pipe (14), a suction opening with a suction line (11) and a deflecting element (16) located downstream of the mixing pipe (14).
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: March 5, 2013
    Assignee: Continental Automotive GmbH
    Inventor: Klaus Markefka
  • Patent number: 8337672
    Abstract: The invention relates to the oil processing industry and can be used for producing vacuum in a vacuum petroleum distillation column. The inventive method involves pumping out a vapor-gas medium from the column by of a gas-gas ejector in such a way that a vapor-gas mixture is formed at the entry thereof and supplying said mixture to a condenser for producing a gas mixture and a vapor phase condensate. The gas mixture is supplied from the condenser to a liquid-gas jet apparatus and the condensate is delivered to an additional separator. A hydrocarbon-containing condensate is removed from the additional separator for the intended use thereof and a water-containing condensate is fed to a steam generator for producing steam by supplying heat of a hot distillate evacuated from the vacuum column. The thus obtained steam is used in the gas-gas ejector as a high-pressure gas.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: December 25, 2012
    Inventor: Valery Grigorievich Tsegelsky
  • Patent number: 8206126
    Abstract: A pump unit (12) includes a pump housing (14), a pump cover (16), and an impeller (18) between the pump housing and pump cover. The pump housing and pump cover define a first channel (32) and a second channel (34) each having an inlet and an outlet. The impeller has first vanes (36) cooperating with the first channel and second vanes (38) cooperating with the second channel. The outlet of the second channel is constructed and arranged to provide fuel to an engine upon rotation of the impeller. A jet pump (38) is fluidly connected with the outlet of the first channel such that as the impeller rotates, the jet pump causes fuel to be drawn into the reservoir (37). Connecting structure (44, 44?) fluidly connects the first and second channels such that upon rotation of the impeller, fuel in the second channel flows into the first channel to prime the first channel.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: June 26, 2012
    Assignee: Continental Automotive Systems US, Inc.
    Inventors: John Wattai, Matthias Vogel
  • Patent number: 8172547
    Abstract: A dielectric element barrier discharge pump for accelerating a fluid flow. In one embodiment the pump has a first dielectric layer having a first electrode embedded therein and a second dielectric layer having a second electrode embedded therein. The first and second dielectric layers are further supported apart from one another to form an air gap therebetween. A third electrode is disposed at least partially in the air gap upstream of the first and second electrodes, relative to a direction of flow of the fluid flow. A high voltage supplies a high voltage signal to the third electrode. The electrodes cooperate to generate opposing asymmetric plasma fields in the gap that create an induced air flow within the gap. The induced air flow operates to accelerate the fluid flow as the fluid flow moves through the gap.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 8, 2012
    Assignee: The Boeing Company
    Inventors: Richard S. Dyer, Joseph S. Silkey, Bradley A. Osborne
  • Patent number: 8147213
    Abstract: A device for guiding powdery fluidic media, in particular powder paint, including a receptacle which is provided with an inner chamber for the media which is to be guided, and from where the medium is suctioned via a connection channel which can be closed by a valve body. The connection channel and the valve body comprise, respectively, an upper end area formed in such a manner that an annular Venturi nozzle is formed therebetween which is used as a pump. The valve body is inserted in a sealed manner in the end region of the connecting channel by a sealing section when in the closed position thereof and comprises a conveyor gas channel which can impinged upon by conveyor gas, through which the conveyor gas can be guided to the connection channel in the vicinity of the sealing section, essentially, in the direction of flow of the medium.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: April 3, 2012
    Assignee: Eisenmann AG
    Inventors: Erwin Hihn, Apostolos Katefidis
  • Patent number: 7997335
    Abstract: A seafloor pump assembly is installed within a caisson that has an upper end for receiving a flow of fluid containing gas and liquid. The pump assembly is enclosed within a shroud that has an upper end that seals around the pump assembly and a lower end that is below the motor and is open. An extraction tube has an upper end above the shroud within the upper portion of the caisson and a lower end connected to a jet pump. The extraction tube causes gas that separates from the liquid and collects in the upper portion of the caisson to be drawn into the jet pump and mixed with the liquid as the liquid is being pumped.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: August 16, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Donn J. Brown, Brown Lyle Wilson
  • Patent number: 7744352
    Abstract: A jet pump assembly and method for removing fluid from a well bore extending into a formation is disclosed. The jet pump assembly includes a jet pump interposed between a tubing string and a packer. The jet pump includes a body having an outer surface, a lower tubular end, an upper tubular end connected to a lower end of the tubing string, and a central axial bore intersecting the upper tubular end at a discharge end and extending partially through the pump body toward the lower tubular end. The pump body further has a plurality of radial inlet ports intersecting the central axial bore and a plurality of production ports extending from the lower tubular end to the upper tubular end in a non-intersecting relation to the injection ports. The central axial bore is shaped to provide a non-restricted flow path from the point the injection ports intersect the central axial bore to the discharge end of the central axial bore.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: June 29, 2010
    Assignee: Latigo Pipe and Equipment, Inc.
    Inventor: Thomas Earl Parr
  • Patent number: 7662290
    Abstract: The present invention removes contaminants from well water without creating the problem of large volumes of waste liquid disposal. It uses double-cone devices as pressure amplifiers which due to their lack of moving parts avoid the risk of additional contamination of the well and provide a prolonged lifetime. For toxic contaminants, a periodic purging of the concentrated contaminants is required. In the case of (sea) salt contamination, there is no waste brine to be continuously handled at all and the system may be run without interruption over an extended period. In this case, the brine is dumped into the well simply by periodically stopping the plant. The brine pours out of the double-cone unit(s) and due to its higher density, sinks down in the well without disturbing the operation of the purification plant.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: February 16, 2010
    Assignee: DCT Double-Cone Technology AG
    Inventor: John Stark
  • Patent number: 7617814
    Abstract: An apparatus includes a housing configured to receive a portion of a fuel pump. The housing defines a first flow path, a second flow path and a third flow path. The first flow path is in fluid communication with a fuel outlet portion of the fuel pump. The second flow path is in fluid communication with the first flow path. The third flow path is in fluid communication with the second flow path. A side wall of the housing defines a venturi within the second flow path at a location downstream from an intersection of the third flow path and the second flow path. A flow control member is disposed within the second flow path at a location upstream from the intersection of the third flow path and the second flow path. The flow control member is configured to regulate the fuel flow within the second flow path.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: November 17, 2009
    Assignee: Synerject, LLC
    Inventor: Kevin L. Leppert
  • Patent number: 7497667
    Abstract: A jet pump assembly for removing fluid from a well bore extending into a formation is disclosed. The jet pump assembly includes a jet pump interposed between a tubing string and a packer. The jet pump includes a body having an outer surface, a lower tubular end, an upper tubular end connected to a lower end of the tubing string, and a central axial bore intersecting the upper tubular end at a discharge end and extending partially through the pump body toward the lower tubular end. The pump body further has a plurality of radial inlet ports intersecting the central axial bore and a plurality of production ports extending from the lower tubular end to the upper tubular end in a non-intersecting relation to the injection ports. The central axial bore is shaped to provide a non-restricted flow path from the point the injection ports intersect the central axial bore to the discharge end of the central axial bore.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: March 3, 2009
    Assignee: Latigo Pipe and Equipment, Inc.
    Inventor: Thomas Earl Parr
  • Publication number: 20080253901
    Abstract: According to one embodiment of the invention, a jet ejector method includes providing a primary jet ejector having a primary inlet stream, coupling one or more secondary jet ejectors to the primary jet ejector such that all of the jet ejectors are in a cascaded arrangement, bleeding off a portion of the primary inlet stream and directing the portion of the primary inlet stream to the secondary jet ejector that is closest to the primary jet ejector in the cascaded arrangement, and directing a motive fluid into the secondary jet ejector that is farthest from the primary jet ejector in the cascaded arrangement. The method further includes, at each secondary jet ejector, receiving at least some of the portion of the primary inlet stream and at least some of the motive fluid to create respective mixtures within the secondary jet ejectors, and at each secondary jet ejector, directing at least a portion of the respective mixture to adjacent jet ejectors in the cascaded arrangement.
    Type: Application
    Filed: January 10, 2008
    Publication date: October 16, 2008
    Applicants: The Texas A&M University System, Highland Interests, Inc., StarRotor Corporation
    Inventors: Mark T. Holtzapple, Gary P. Noyes, George A. Rabroker
  • Patent number: 7048514
    Abstract: The invention relates to pumping engineering, mainly to downhole jet production units. The inventive downhole jet unit comprises a packer, a pipe column and a jet pump. An active nozzle and a mixing chamber are axially arranged in the body of the jet pump, and a pass channel provided with a mounting face for a sealing assembly with an axial channel is embodied therein. Said unit is also provided with an irradiator and a receiver transformer of physical fields. Said receiver transformer is arranged on the side of entry of a liquid pumped from the well into the jet pump and mounted on a cable passing through the axial channel of the sealing assembly. The output of the jet pump is connected to the pipe column above the sealing assembly. The input of a channel for feeding the pumped out medium of the jet pump is connected to a space around the pipe column below the sealing assembly. The input of a channel supplying a working medium to the active nozzle is connected to a space around the pipe column.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: May 23, 2006
    Inventor: Zinoviy D Khomynets
  • Patent number: 6981490
    Abstract: A fuel feed apparatus including a sub-tank is received in a fuel tank having multiple tank sections. Multiple jet pumps respectively transfers fuel received in the tank sections into the sub-tank. Therefore, even if a fuel amount received in a single tank section decreases, fuel can be steadily supplied from another tank section. Intermediately pressurized fuel in a fuel pump is supplied to the jet pumps, so that fuel can be steadily supplied to the jet pumps regardless of fuel consumption amount in an engine. Fuel is drawn from an upstream side of a pressure regulator, and supplied to the jet pump. The pressure regulator has an urging unit, and controls fuel pressure without using a diaphragm. Therefore, the pressure regulator is simplified and downsized.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: January 3, 2006
    Assignee: Denso Corporation
    Inventors: Kiyoshi Nagata, Masaaki Konishi
  • Patent number: 6817837
    Abstract: A recirculating liquid jet pump for moving a wide variety of materials is described. The pump is preferably equipped with an intermediate collection reservoir enabling the placement of material to be suctioned into the collection reservoir without bringing together the material to be suctioned with the motive fluid of the liquid jet pump. The collection reservoir may also be connected to a separate container for de-watering solid-liquid mixtures to enable mixture liquid to be separated from the solids without bringing the separated liquid into contact with the motive fluid of the jet pump and without the use of excessive amounts of jet pump motive fluid.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: November 16, 2004
    Assignee: Walker-Dawson Interest, Inc.
    Inventors: Robert J. Hutchinson, Richard F. Dawson
  • Patent number: 6672069
    Abstract: A method in which an air mass flow supplied to a compressor in a power plant is divided in a flow divider into a small partial flow and into a larger partial flow. The smaller partial flow is supplied to an ejector via an air cooler and a booster. The larger partial flow is supplied to the suction line of said ejector. Both partial flows are combined in the ejector. The mass flow which is combined at the outlet of the ejector can be used as pressurized air in various components of a power plant.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: January 6, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Franz Stuhlmüller, Thomas Weber
  • Patent number: 6619927
    Abstract: An ejector pump for a delivery unit provided in a fuel tank of a motor vehicle has a nozzle produced integrally with a mixing tube. The mixing tube is shaped in the form of a tubular cylinder, so that virtually the entire ejector pump may be produced from plastic in a mold allowing axial demolding. The nozzle is therefore aligned,exactly with respect to the mixing tube. The ejector pump consequently has a particularly high efficiency.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 16, 2003
    Assignee: Siemens AG
    Inventors: Dirk Becker, Johannes Dichmann, Peter Marx
  • Patent number: 6561769
    Abstract: Ejector type vacuum pump, comprising a rotationally symmetric ejector body (4) arranged in a house to be contained in a vacuum chamber (3) that extends axially and opens through a wall of the house, a dust filter (15) running concentrically about the eject body comprising a tube shaped, porous filter body, a frame circumferentially enclosing the filter body so that the filter body and frame form a self containing unit that extends substantially about the whole length of the ejector body to be axially fixed by a muffler (11) that is received in the opening of the vacuum chamber.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: May 13, 2003
    Assignee: Piab AB
    Inventor: Peter Tell
  • Patent number: 6488476
    Abstract: In a fuel feed unit (3) for a motor vehicle, a suction jet pump (6) provided for filling a baffle (2) of a fuel tank (1) is manufactured in one piece with a holding part (4) for a fuel pump (5). The holding part (4) is of pot-shaped design for receiving the fuel pump (5) and carries a fuel filter (7) on a vertical wall (8). Fuel thereby passes to the suction jet pump (6) immediately after the fuel pump (5) has been started up.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: December 3, 2002
    Assignee: Mannesmann VDO AG
    Inventor: Karl Eck
  • Publication number: 20020168268
    Abstract: The present invention is to provide a pneumatic microfluid driving systemcomprises a servo-device, for providing different combination models of airflow, an air gallery structure, constructed inwardly on the micro-reaction module for receiving said airflow, and a connecting channel, co-constructed in the micro-reaction module to connect said air gallery structure and the reaction area on the micro-reaction module for circulating airflow. The pneumatic microfluid driving method is to utilize said servo-device for providing different volumes and directions of combination models of airflow; when different models of airflow combination are to be blown, via the side of the micro-reaction module, into the air gallery structure in the model, the fluid (samples/reagents) inside the microfluid channel in the micro-reaction module shall be led to cause minute microfluid movement effects like proceeding, receding and stopping.
    Type: Application
    Filed: December 19, 2001
    Publication date: November 14, 2002
    Applicant: National Cheng Kung University
    Inventors: Yu-Cheng Lin, Chun-Ping Jen
  • Patent number: 6457945
    Abstract: A fuel feeding module for a motor vehicle has a fuel supply tank, a storage container arranged in the fuel supply tank, a feeding aggregate arranged in the storage container and feeding fuel from the storage container to an internal combustion engine of the motor vehicle, the feeding aggregate having a driving part and a pump part which is formed as a flow pump and has a rotatably driven impeller cooperating with at least one flow passage for feeding the fuel, a jet pump which is connected with the flow passage of the pump part of the feeding aggregate and through which the fuel is fed from the fuel supply tank into the storage container, the jet pump being arranged laterally near the feeding aggregate and connected with the flow passage of the pump part by a passage which extends along the bottom of the storage container.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: October 1, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Kleppner, Michael Kuehn, Wolfgang Gabauer, Oliver Wahl, Dieter Schreckenberger
  • Patent number: 6168388
    Abstract: A system and method that permits fluids, such as petroleum, to be pumped from two separate zones. A submergible pumping system, including a submergible electric motor driving a submergible pump, is deployed in a wellbore. The submergible pump intake is located in a first zone to intake a fluid. The fluid is discharged through a fluid-powered pump, such as a jet pump. The jet pump is coupled to a fluid intake disposed in a separate zone within the wellbore. The single system can be utilized to pump fluids from two different zones.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: January 2, 2001
    Assignee: Camco International, Inc.
    Inventors: Anthony D Hughes, Graham Anderson, W. Keith Russell, Nathan Thompson
  • Patent number: 6120254
    Abstract: The invention pertains to the field of fluidics and jet technology. The essence of the invention: is a vacuum-producing device composed of a liquid-gas jet apparatus, a separator and a pump, is furnished with a jet pump, so that the gas inlet of the liquid-gas jet apparatus is connected to a pipeline for discharge of vapors from a rectification column, the liquid inlet of the liquid-gas jet apparatus is connected to the discharge side of the pump, the outlet of the liquid-gas jet apparatus is connected to the separator, the passive medium inlet of the jet pump is connected to the separator, the outlet of the jet pump is connected to the suction side of the pump, the active nozzle of the jet pump is connected to a pipeline for export of a liquid fraction from the rectification column. This vacuum system results in increased efficiency and productivity.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: September 19, 2000
    Inventor: Serguei A. Popov
  • Patent number: 6106243
    Abstract: The invention relates to the field of petrochemical industry. The essence of the invention: is a vacuum-producing device, comprising a liquid-gas jet apparatus, a separator and a pump, is furnished with a mixer. The gas inlet of the liquid-gas jet apparatus is connected to the pipeline for export of a gas-vapor phase from a rectification column, the liquid inlet of the liquid-gas jet apparatus is connected to the discharge side of the pump, the outlet of the liquid-gas jet apparatus is connected to the separator, the gas outlet of the separator is connected to consumers of compressed gas, the outlet of the mixer is connected to the suction side of the pump, the inlet of the mixer is connected both to the pipeline for export of a liquid faction from the rectification column and to the liquid outlet of the separator. The offered jet pump vacuum-producing unit is more effective, more capable and less harmful to the environment in comparison to existing units.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: August 22, 2000
    Inventor: Serguei A. Popov
  • Patent number: 6086334
    Abstract: A pumping device providing direct energy exchange between a working fluid and a pumped fluid, comprising at least a first ejector propelling the working fluid in one direction and at least a second ejector propelling working fluid in a second direction. The axial thrust induced by the jet emitted in the first direction compensates at least partly that of a jet emitted in the second direction by another ejector.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: July 11, 2000
    Assignee: Institut Francias du Petrole
    Inventor: Yvon Castel
  • Patent number: 6050781
    Abstract: An apparatus for collecting a substance has a fluid source providing pressurized fluid, a heating device, a heat transferring device and a vacuum producing device. The heating device is coupled to the fluid source and is adapted to cause a first pressurized fluid from the fluid source to become heated. The heat transferring device is coupled to the heating device for receiving the heated first pressurized fluid, and is adapted for transferring heat from the first pressurized fluid to a heatable substance. The vacuum producing device has first and second inlet openings, the first inlet opening is fluidly coupled to the fluid source for receiving a second pressurized fluid from the fluid source and the second inlet opening is adapted for receiving the heatable substance.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: April 18, 2000
    Inventor: Amier Al-Ali
  • Patent number: 5927338
    Abstract: Disclosed is an improved mixing eductor (10) of the type wherein the primary liquid (17), e.g., water, is in a main stream (201) flowing in a downstream direction. A venturi tube (51) is in the eductor (10) and has an annular sharp edge (131) in the main stream (201), thereby dividing such stream (201) into a primary stream (179) and a secondary stream (181) around the primary stream (179). The eductor (10) has an air gap (103) and a flow guide (47) downstream thereof. In a specific embodiment, the flow guide (47) is annular around the venturi tube (51) and the tube (51) and the guide (47) are in spaced telescoped relationship. Several embodiments of the eductor (10) and a new method for mixing liquids are disclosed.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 27, 1999
    Assignee: S.C. Johnson Commercial Markets, Inc.
    Inventors: John A. Boticki, James L. Bournoville, James H. Lohr, Richard E. Rakoczy, Charles E. Seaman, Jr.
  • Patent number: 5896435
    Abstract: The injector (B) designed specifically to supply a steam generator (G) with water at high pressure when necessary, is supplied by steam that may originate from the generator itself, and by pressurized water from an ejector (C) supplied during the start up phase by a water circuit (D) pressurized by steam, and during the steady state phase, by an extraction circuit (R) connected on the downstream side of the injector. This device entrains water originating from a tank at low pressure (73) into injector (B), to pressurize it at a pressure exceeding the steam pressure.Application to safety devices in nuclear power stations.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: April 20, 1999
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Guy-Marie Gautier, Patrick Aujollet
  • Patent number: 5839474
    Abstract: An eductor apparatus 20 includes a fluid inlet port 30 which directs fluid through an air gap 32 to an eductor 42. A rib 38 deflects any fluid which bounces off of the eductor 42 so that the fluid is retarded from exiting through an air gap port 34. The eductor 42 is of a one-piece construction having a specially designed inlet port 44 and exterior surface 116 thereabout in order to ensure attached flow and thereby reduce the amount of fluid which bounces off the exterior surface 116 and which is directed back upstream toward the air gap port 34.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 24, 1998
    Assignee: SC Johnson Commercial Markets, Inc.
    Inventor: Michael J. Greaney
  • Patent number: 5836745
    Abstract: An apparatus for recovering fluid from a liquid formation includes a submersible pump for pumping fluid from the liquid formation. The submersible pump is coupled to an eductor defining a fluid member for receiving and transporting the fluid from the pump, and a fluid inlet in fluid communication with the fluid member for placement at a liquid-product layer in the formation. A probe assembly is coupled to the eductor for ensuring that the pump is inoperative when the fluid level in the formation is low. In operation, a motive force created by the upward flow of fluid pumped through the fluid member draws additional fluid into the fluid inlet from the liquid-product layer. The fluid entering the fluid inlet merges with the fluid flowing through the fluid member and is transported to a treatment facility.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: November 17, 1998
    Assignee: Sippican, Inc.
    Inventors: David K. Brogan, John R. Couture, Michael M. Gifford
  • Patent number: 5788464
    Abstract: The device and process for suction in a fluid medium are based on a special arrangement of a driver pump (2) and a jet pump (1) which preferably provide excellent suction with compact dimensions. The driver pump (2) supplies the fluid medium under pressure to the jet pump (1). The desired suction is obtained via an suction slot (3) in the jet pump (1). The driver pump (2) conveys the fluid medium required to operate the jet pump (1) via an inlet (9) which does not feed the suction slot (3).
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: August 4, 1998
    Inventor: Keld Gabelgaard
  • Patent number: 5593112
    Abstract: The nacelle of the aircraft is purged and the sidewall of the vector nozzles of the gas turbine engine in the nacelle is cooled by utilizing the engine fan air to drive ejector pumps mounted in series flow relationship, a rectangular mixing zone and a diffuser with a rectangular cross section and a step in the exhaust nozzle gaspath. This results in minimizing the amount of fan air for driving the system and enhancing engine thrust and enhanced sidewall cooling because the temperature of the mixed air is lower than heretofore known systems.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: January 14, 1997
    Assignee: United Technologies Corporation
    Inventors: Mark S. Maier, Eric J. Gamble, Jack W. Wilson, Eliott L. Calzadilla, Gerald F. Goetz
  • Patent number: 5558503
    Abstract: In order to minimize the dimensions of the spring (22) and the pump motor in a high-pressure cleaning device comprising a high-pressure pump pumping cleaning liquid out of a suction line (1) into a pressure line (6) leading to a discharge device, a bypass line (18) leading from the pressure line to the suction line, a valve body (19) closing the outlet opening (8) between pressure line and bypass line, an actuating element (20) for the valve body which is movable against the valve body contrary to the action of a spring (22) into a position displacing the valve body into the open position, and an operating cylinder divided by a piston (10) sealingly displaceable therein and coupled to the actuating element into two chambers, (11,12) one of which is arranged between the outlet opening and the bypass line and the other of which communicates with the pressure line via a control line, the control line (13) exits the pressure line (6) in the region of a cross-sectional constriction (15) in this pressure line.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 24, 1996
    Assignee: Alfred Karcher GmbH & Co.
    Inventors: Matthias Weller, Wilhelm Eisenmann
  • Patent number: 5351875
    Abstract: A mixing and dispensing device which selectively mixes liquids has two filling stations. Each filling station uses water pressure to siphon the liquids from their source container through the valves to an eductor to mix the chemicals with water and, then, to receiving containers, At least one of the valves is constructed to reduce cross-contamination by reducing the surface area of the delivery system.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: October 4, 1994
    Assignees: Hydro Systems Company, Diversey Corp.
    Inventors: Steve Rhine, Gordon Baker
  • Patent number: 5335734
    Abstract: A pump apparatus dispenses a liquid and additive mixture and has a pump cylinder with intake and discharge ports with associated valves. An additive supply communicates with the pump cylinder to supply additive with liquid drawn into the pump during an intake stroke prior to a discharge stroke during which a mixture of additive and liquid is discharged from the pump. The additive is mixed in the liquid prior to passing into the intake port and is metered to attain the desired concentration. An aerating nozzle receives mixture discharged from the discharge port to produce foam for various applications, such as fire fighting. The aerating nozzle has a restrictor orifice located adjacent and upstream from air entainment opening in the nozzle. The restrictor orifice can be a simple non-tapered cylindrical passage, but for improved foam generation, the orifice can be a diverging passage with a step between inlet and outlet portions of the passage.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: August 9, 1994
    Assignee: Scott Plastics Ltd.
    Inventors: Blayney J. Scott, Barry G. Gilbert, George R. Gowan
  • Patent number: 5205377
    Abstract: The lubricant mist is supplied in timed fashion to at least one nozzle (31, 36, 40, 45) associated with a lubrication station in the zone of movement of a moving part (32, 37, 41 and 34 respectively). The timed supply of the mist is effected in dependence upon the position of a drive shaft from which the moving part derives its movement. The lubricant mist can therefore be supplied to the lubrication station in an accurately dosed quantity only when it is needed there. A possible use of the lubricating method is for looms where it is particularly important that the web of cloth produced on the loom should not be soiled by lubricant.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: April 27, 1993
    Assignee: Sulzer Brothers Limited
    Inventors: Erwin Pfarrwaller, Rudolf Lehn