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GB2189843A - Apparatus for mixing fluids - Google Patents

Apparatus for mixing fluids Download PDF

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Publication number
GB2189843A
GB2189843A GB08708949A GB8708949A GB2189843A GB 2189843 A GB2189843 A GB 2189843A GB 08708949 A GB08708949 A GB 08708949A GB 8708949 A GB8708949 A GB 8708949A GB 2189843 A GB2189843 A GB 2189843A
Authority
GB
United Kingdom
Prior art keywords
fluid
pipe
nozzle means
fluids
venturi tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08708949A
Other versions
GB2189843B (en
GB8708949D0 (en
Inventor
James Maitland Pringle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8708949D0 publication Critical patent/GB8708949D0/en
Publication of GB2189843A publication Critical patent/GB2189843A/en
Application granted granted Critical
Publication of GB2189843B publication Critical patent/GB2189843B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/30—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the first liquid or other fluent material being fed by gravity, or sucked into the carrying fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/463—Arrangements of nozzles with provisions for mixing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/467—Arrangements of nozzles with a plurality of nozzles arranged in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

A short length of pipe 10 is plumbed into a pipe 11 which pipe carries the first fluid. Nozzle 14 injects the flow of the first fluid through venturi tube 13. Annular chamber 15 surrounds the nozzle 14. Injection of the first fluid by the nozzle 14 through the venturi tube 13 draws the second fluid in through line 16 for mixing therewith. A control valve 17 to control the rate of addition of the second fluid, may be present in line 16. Fig. 2 shows apparatus for the mixing of three fluids with the first fluid. In Fig. 2 nozzles 14 and 20 act as venturi tubes. <IMAGE>

Description

SPECIFICATION Apparatus for mixing fluids This invention concerns apparatus for mixing fluids, by which term we mean not only gaseous and liquid media, but also solids in finely divided form.
The number of processes wherein it is necessary to dose one fluid with another or others are legion. The addition of pesticides of one or more kinds to water for crop-spraying or foaming agents to water for fire-fighting or flavouring essences to water in the production of soft drinks, are but three examples.
According to the present invention there is provided apparatus for mixing fluids comprising a length of pipe adapted to be fitted into a flow-line along which a first fluid may flow, a portion of waisted section in said pipe forming a venturi tube, nozzle means for directing said first fluid through the venturi tube, a chamber within the pipe and surrounding the nozzle means and in communication with a source of a second fluid, whereby said second fluid is entrained by said first fluid as it passes through the pipe.
One or more further nozzle means each surrounded by a further chamber within the pipe and in communication with sources of further fluids may be provided, each such further nozzle means serving to direct said first fluid through the adjacent downstream nozzle which is shaped to form a venturi tube, all whereby one or more further fluids are entrained by said first fluid as it passes through the length of pipe.
Where there are a plurality of nozzle means they may be partially nested within one another.
Valve or like means may be provided to control the supply of the second and any further fluids to their respective chambers.
The invention will be further apparent from the following description, with reference to the several figures of the accompanying drawings, which show, by way of example only, two forms of mixing apparatus embodying same.
Of the drawings:- Figure 1 shows a longitudinal cross-section through a first form of apparatus for mixing two fluids; and Figure 2 shows a longitudinal cross-section through a second form of apparatus for mixing four fluids.
Referring firstly to Fig. 1 it will be seen that the first form of apparatus comprises a short length of pipe 10 which is plumbed into the length of a flow line pipe 11 using conventional screw or similar connections. The flow line pipe 11 is adapted to carry a first fluid such as water in the direction of the arrow X.
At the downstream end of the pipe 10 is an insert 12 defining a waist forming within the pipe 10 a venturi tube 13.
Also within the pipe 10 is a nozzle member 14 which serves to inject the flow of the first fluid through the venturi tube 13.
Surrounding the nozzle means 14 and within the pipe 10 is an annular chamber 15 communicating, by way of line 16 entering the pipe 10 in a radial direction, with a source of a second fluid to be mixed with the first. As the first fluid is injected by the nozzle means 14 through the venturi tube 13 the second fluid is drawn in through the line 16 for admixture therewith. A control valve 17 may be included in line 16 to control the rate at which the second fluid is added to the first.
Referring now to Fig. 2 it will be seen that the second form of apparatus includes all of the parts as described thus far and such are numbered with like reference numerals. In this embodiment there is provision for the mixing of two further additional fluids with the first fluid.
To this end two further nozzle means 20 and 21 are provided. The nozzle means 20 is of lesser diameter that the nozzle means 14 and the nozzle means 21 is of lesser diameter than the nozzle means 20. The three are partially nested within one another as shown in Fig. 2. The nozzle means 20 is surrounded by an annular chamber 22 in communication with a source of a third fluid by means of a line 23. The nozzle means 21 is surrounded by a still further annular chamber 24 in communication with a fourth source of fluid by means of a line 25. Valves 26 and 27 are provided in the lines 23 and 25 respectively to control the flow of the third and fourth fluids into the chambers 22 and 24.
Each nozzle means which is downstream from another nozzle means is so shaped as to act as a venturi tube, whereby as the- first fluid passes through the flow line it is dosed with the second, third and fourth fluids in desired proportions.
It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art, being possible, without departing from the scope thereof as defined by the appended claims.
1. Apparatus for mixing fluids comprising a length of pipe adapted to be fitted into a flow-line along which a first fluid may flow, a portion of waisted section in said pipe forming a venturi tube, nozzle means for directing said first fluid through the venturi tube, a chamber within the pipe and surrounding the nozzle means and in communication with a source of a second fluid, whereby said second fluid is entrained by said first fluid as it passes through the pipe.
2. Apparatus according to claim 1 having one or more further nozzle means each surrounded by a further chamber within the pipe
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (2)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Apparatus for mixing fluids This invention concerns apparatus for mixing fluids, by which term we mean not only gaseous and liquid media, but also solids in finely divided form. The number of processes wherein it is necessary to dose one fluid with another or others are legion. The addition of pesticides of one or more kinds to water for crop-spraying or foaming agents to water for fire-fighting or flavouring essences to water in the production of soft drinks, are but three examples. According to the present invention there is provided apparatus for mixing fluids comprising a length of pipe adapted to be fitted into a flow-line along which a first fluid may flow, a portion of waisted section in said pipe forming a venturi tube, nozzle means for directing said first fluid through the venturi tube, a chamber within the pipe and surrounding the nozzle means and in communication with a source of a second fluid, whereby said second fluid is entrained by said first fluid as it passes through the pipe. One or more further nozzle means each surrounded by a further chamber within the pipe and in communication with sources of further fluids may be provided, each such further nozzle means serving to direct said first fluid through the adjacent downstream nozzle which is shaped to form a venturi tube, all whereby one or more further fluids are entrained by said first fluid as it passes through the length of pipe. Where there are a plurality of nozzle means they may be partially nested within one another. Valve or like means may be provided to control the supply of the second and any further fluids to their respective chambers. The invention will be further apparent from the following description, with reference to the several figures of the accompanying drawings, which show, by way of example only, two forms of mixing apparatus embodying same. Of the drawings:- Figure 1 shows a longitudinal cross-section through a first form of apparatus for mixing two fluids; and Figure 2 shows a longitudinal cross-section through a second form of apparatus for mixing four fluids. Referring firstly to Fig. 1 it will be seen that the first form of apparatus comprises a short length of pipe 10 which is plumbed into the length of a flow line pipe 11 using conventional screw or similar connections. The flow line pipe 11 is adapted to carry a first fluid such as water in the direction of the arrow X. At the downstream end of the pipe 10 is an insert 12 defining a waist forming within the pipe 10 a venturi tube 13. Also within the pipe 10 is a nozzle member 14 which serves to inject the flow of the first fluid through the venturi tube 13. Surrounding the nozzle means 14 and within the pipe 10 is an annular chamber 15 communicating, by way of line 16 entering the pipe 10 in a radial direction, with a source of a second fluid to be mixed with the first. As the first fluid is injected by the nozzle means 14 through the venturi tube 13 the second fluid is drawn in through the line 16 for admixture therewith. A control valve 17 may be included in line 16 to control the rate at which the second fluid is added to the first. Referring now to Fig. 2 it will be seen that the second form of apparatus includes all of the parts as described thus far and such are numbered with like reference numerals. In this embodiment there is provision for the mixing of two further additional fluids with the first fluid. To this end two further nozzle means 20 and 21 are provided. The nozzle means 20 is of lesser diameter that the nozzle means 14 and the nozzle means 21 is of lesser diameter than the nozzle means 20. The three are partially nested within one another as shown in Fig. 2. The nozzle means 20 is surrounded by an annular chamber 22 in communication with a source of a third fluid by means of a line 23. The nozzle means 21 is surrounded by a still further annular chamber 24 in communication with a fourth source of fluid by means of a line 25. Valves 26 and 27 are provided in the lines 23 and 25 respectively to control the flow of the third and fourth fluids into the chambers 22 and 24. Each nozzle means which is downstream from another nozzle means is so shaped as to act as a venturi tube, whereby as the- first fluid passes through the flow line it is dosed with the second, third and fourth fluids in desired proportions. It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art, being possible, without departing from the scope thereof as defined by the appended claims. CLAIMS
1. Apparatus for mixing fluids comprising a length of pipe adapted to be fitted into a flow-line along which a first fluid may flow, a portion of waisted section in said pipe forming a venturi tube, nozzle means for directing said first fluid through the venturi tube, a chamber within the pipe and surrounding the nozzle means and in communication with a source of a second fluid, whereby said second fluid is entrained by said first fluid as it passes through the pipe.
2. Apparatus according to claim 1 having one or more further inserts each defining nozzle means and each surrounded by a further insert defining a chamber within the pipe and in communication with sources of further fluids each such further nozzle means serving to direct said first fluid through the adjacent downstream nozzle which is shaped to form a venturi tube, all whereby one or more further fluids are entrained by said first fluid as it passes through the length of pipe.
2. Apparatus according to claim 1 having one or more further nozzle means each surrounded by a further chamber within the pipe and in communication with sources of further fluids each such further nozzle means serving to direct said first fluid through the adjacent downstream nozzle which is shaped to form a venturi tube, all whereby one or more further fluids are entrained by said first fluid as it passes through the length of pipe.
3. Apparatus according to claim 2 wherein the plurality of nozzle means are partially nested within one another.
4. Apparatus according to any preceding claim wherein valve or like means is provided to control the supply of the second and any further fluids to their respective chambers.
CLAIMS Amendments to the claims have been filed, and have the following effect: Claims 1 and 2 above have been deleted or textually amended.
New or textually amended claims have been filed as follows:-
1. Apparatus for mixing fluids comprising a length of pipe of constant diameter adapted to be fitted into a flow-line along which a first fluid may flow, an insert of waisted section fitted in said pipe and forming a venturi tube, a further insert defining nozzle means for directing said first fluid through said venturi tube, a still further insert defining a chamber within the pipe and surrounding the nozzle means and in communication with a source of a second fluid, whereby said second fluid is entrained by said first fluid as it passes through the pipe.
GB8708949A 1986-04-30 1987-04-14 Apparatus for mixing fluids Expired GB2189843B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868610636A GB8610636D0 (en) 1986-04-30 1986-04-30 Induced flow mixers

Publications (3)

Publication Number Publication Date
GB8708949D0 GB8708949D0 (en) 1987-05-20
GB2189843A true GB2189843A (en) 1987-11-04
GB2189843B GB2189843B (en) 1989-11-29

Family

ID=10597151

Family Applications (3)

Application Number Title Priority Date Filing Date
GB868610636A Pending GB8610636D0 (en) 1986-04-30 1986-04-30 Induced flow mixers
GB8708949A Expired GB2189843B (en) 1986-04-30 1987-04-14 Apparatus for mixing fluids
GB8708948A Expired GB2190022B (en) 1986-04-30 1987-04-14 Apparatus for spraying liquid mixtures

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868610636A Pending GB8610636D0 (en) 1986-04-30 1986-04-30 Induced flow mixers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8708948A Expired GB2190022B (en) 1986-04-30 1987-04-14 Apparatus for spraying liquid mixtures

Country Status (1)

Country Link
GB (3) GB8610636D0 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311621A (en) * 1989-11-13 1994-05-17 British Gas Plc Shower unit
FR2750347A1 (en) * 1996-07-01 1998-01-02 Klein Christophe Pierre Lucien Venturi foam generator using ultra sound to produce small bubbles
WO1998000227A1 (en) * 1996-07-01 1998-01-08 Christophe Klein Foam generating device
US6071083A (en) * 1998-01-14 2000-06-06 Kakovitch; Thomas Gas flow director
WO2000061948A1 (en) * 1999-04-08 2000-10-19 Innovatsionnaya Kompaniya Fisonic Gas-liquid jet apparatus
US6358015B1 (en) * 1998-01-14 2002-03-19 Thomas Kakovitch Method and apparatus for improving fluid flow and aerating liquids
WO2003072952A1 (en) * 2002-02-26 2003-09-04 Pursuit Dynamics Plc Jet pump
WO2004005691A1 (en) * 2002-07-03 2004-01-15 Peter Holmes Ellmers Fluid mixing venturi
WO2006049517A1 (en) * 2004-11-05 2006-05-11 Ausat Sinair Limited Mixing pump
WO2011039190A1 (en) * 2009-09-29 2011-04-07 Siemens Aktiengesellschaft Device, flotation machine equipped therewith, and methods for the operation thereof
RU2603984C2 (en) * 2011-09-23 2016-12-10 Прайметалз Текнолоджиз Джермани Гмбх Dispersion nozzle, flotation machine equipped therewith and method for operating same
GB2571135A (en) * 2018-02-20 2019-08-21 Univ Cranfield Jet pump apparatus
US11454463B2 (en) 2018-06-22 2022-09-27 General Electric Company Fluid eductors, and systems and methods of entraining fluid using fluid eductors
US11555638B2 (en) * 2016-11-30 2023-01-17 Dwyer Instruments, Llc Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0100756D0 (en) 2001-01-11 2001-02-21 Powderject Res Ltd Needleless syringe
GB0708758D0 (en) 2007-05-04 2007-06-13 Powderject Res Ltd Particle cassettes and process thereof
CN110017307B (en) * 2019-03-12 2020-10-16 天津科技大学 Jet pump nozzle with liquid-liquid and solid-liquid dual conveying functions
CN110665669B (en) * 2019-09-02 2021-04-06 西安理工大学 Low-aerodynamic-resistance throttling unit atomization device

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Publication number Priority date Publication date Assignee Title
GB421567A (en) *
GB629690A (en) *
GB197684A (en) * 1922-05-10 1924-03-27 Adolf Martin Kobiolke An improved vacuum producing device
GB260424A (en) * 1925-10-29 1926-11-04 Carborundum Co Improved method of and apparatus for applying plastic material to surfaces
GB423656A (en) * 1934-09-21 1935-02-05 Andrew Birchall Improvements in injectors for hot and cold water, as applied to shower fittings and the like
GB621779A (en) * 1938-01-21 1949-04-20 Giovanni Friedmann Apparatus for transporting manure from manure pits to land to be fertilised
GB802273A (en) * 1954-10-20 1958-10-01 Juan Asensio Carrasco Convector apparatus for promoting water circulation in steam boilers
GB802711A (en) * 1955-08-25 1958-10-08 Paul Menzen Improved device for introducing finely divided solids into liquid metal
GB1187041A (en) * 1966-08-27 1970-04-08 Jaco Engineering Company Ltd Improvements relating to the Cooling and Lubrication of Dies.
US3551073A (en) * 1968-12-16 1970-12-29 Chandler Evans Inc Pumping system with improved jet inducer
GB1472126A (en) * 1973-05-25 1977-05-04 Renault System for venting a fuel tank
EP0086728A2 (en) * 1982-02-11 1983-08-24 CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE ET FROTTEMENT Société dite: Apparatus for the sealed introduction and/or withdrawal of bodies through at least one aperture of a treating chamber which may be under vacuum
US4482299A (en) * 1982-08-25 1984-11-13 Eulass David S Water powered sump pump

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US3539111A (en) * 1968-04-10 1970-11-10 Harry W Johnson Solution mixing and dispensing apparatus
US3614244A (en) * 1969-10-21 1971-10-19 Ignaz Eck Shower bath attachment
US4121773A (en) * 1977-03-28 1978-10-24 Headen James J Shower head dispenser
US4225085A (en) * 1979-03-29 1980-09-30 James J. Headen Shower head dispenser
US4295612A (en) * 1979-10-17 1981-10-20 Betsinger James D Shower apparatus
US4358056A (en) * 1979-12-28 1982-11-09 Emmett Laboratories, Inc. Shower dispenser
US4322036A (en) * 1980-02-13 1982-03-30 Bly Herbert A Device for dispensing and dispersing liquid additives in shower bath water

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421567A (en) *
GB629690A (en) *
GB197684A (en) * 1922-05-10 1924-03-27 Adolf Martin Kobiolke An improved vacuum producing device
GB260424A (en) * 1925-10-29 1926-11-04 Carborundum Co Improved method of and apparatus for applying plastic material to surfaces
GB423656A (en) * 1934-09-21 1935-02-05 Andrew Birchall Improvements in injectors for hot and cold water, as applied to shower fittings and the like
GB621779A (en) * 1938-01-21 1949-04-20 Giovanni Friedmann Apparatus for transporting manure from manure pits to land to be fertilised
GB802273A (en) * 1954-10-20 1958-10-01 Juan Asensio Carrasco Convector apparatus for promoting water circulation in steam boilers
GB802711A (en) * 1955-08-25 1958-10-08 Paul Menzen Improved device for introducing finely divided solids into liquid metal
GB1187041A (en) * 1966-08-27 1970-04-08 Jaco Engineering Company Ltd Improvements relating to the Cooling and Lubrication of Dies.
US3551073A (en) * 1968-12-16 1970-12-29 Chandler Evans Inc Pumping system with improved jet inducer
GB1472126A (en) * 1973-05-25 1977-05-04 Renault System for venting a fuel tank
EP0086728A2 (en) * 1982-02-11 1983-08-24 CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE ET FROTTEMENT Société dite: Apparatus for the sealed introduction and/or withdrawal of bodies through at least one aperture of a treating chamber which may be under vacuum
US4482299A (en) * 1982-08-25 1984-11-13 Eulass David S Water powered sump pump

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311621A (en) * 1989-11-13 1994-05-17 British Gas Plc Shower unit
FR2750347A1 (en) * 1996-07-01 1998-01-02 Klein Christophe Pierre Lucien Venturi foam generator using ultra sound to produce small bubbles
WO1998000227A1 (en) * 1996-07-01 1998-01-08 Christophe Klein Foam generating device
US6042089A (en) * 1996-07-01 2000-03-28 Klein; Christophe Foam generating device
US6071083A (en) * 1998-01-14 2000-06-06 Kakovitch; Thomas Gas flow director
US6358015B1 (en) * 1998-01-14 2002-03-19 Thomas Kakovitch Method and apparatus for improving fluid flow and aerating liquids
WO2000061948A1 (en) * 1999-04-08 2000-10-19 Innovatsionnaya Kompaniya Fisonic Gas-liquid jet apparatus
WO2003072952A1 (en) * 2002-02-26 2003-09-04 Pursuit Dynamics Plc Jet pump
WO2004005691A1 (en) * 2002-07-03 2004-01-15 Peter Holmes Ellmers Fluid mixing venturi
WO2006049517A1 (en) * 2004-11-05 2006-05-11 Ausat Sinair Limited Mixing pump
WO2011039190A1 (en) * 2009-09-29 2011-04-07 Siemens Aktiengesellschaft Device, flotation machine equipped therewith, and methods for the operation thereof
AU2010303034B2 (en) * 2009-09-29 2013-07-04 Siemens Aktiengesellschaft Device, flotation machine equipped therewith, and methods for the operation thereof
RU2503502C1 (en) * 2009-09-29 2014-01-10 Сименс Акциенгезелльшафт Device, flotation machine equipped therewith and method of its operation
RU2603984C2 (en) * 2011-09-23 2016-12-10 Прайметалз Текнолоджиз Джермани Гмбх Dispersion nozzle, flotation machine equipped therewith and method for operating same
US11555638B2 (en) * 2016-11-30 2023-01-17 Dwyer Instruments, Llc Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies
GB2571135A (en) * 2018-02-20 2019-08-21 Univ Cranfield Jet pump apparatus
GB2571135B (en) * 2018-02-20 2020-07-15 Univ Cranfield Jet pump apparatus
US11454463B2 (en) 2018-06-22 2022-09-27 General Electric Company Fluid eductors, and systems and methods of entraining fluid using fluid eductors

Also Published As

Publication number Publication date
GB2190022A (en) 1987-11-11
GB2189843B (en) 1989-11-29
GB8708948D0 (en) 1987-05-20
GB2190022B (en) 1989-11-29
GB8610636D0 (en) 1986-06-04
GB8708949D0 (en) 1987-05-20

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