WO2002040865A1 - Distributeur de liquide - Google Patents

Distributeur de liquide Download PDF

Info

Publication number
WO2002040865A1
WO2002040865A1 PCT/GB2001/005025 GB0105025W WO0240865A1 WO 2002040865 A1 WO2002040865 A1 WO 2002040865A1 GB 0105025 W GB0105025 W GB 0105025W WO 0240865 A1 WO0240865 A1 WO 0240865A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
drum
aperture
axis
fluid
Prior art date
Application number
PCT/GB2001/005025
Other languages
English (en)
Inventor
John Dadswell
Original Assignee
John Dadswell
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
Priority claimed from GB0028181A external-priority patent/GB0028181D0/en
Application filed by John Dadswell filed Critical John Dadswell
Priority to AU2002215105A priority Critical patent/AU2002215105A1/en
Publication of WO2002040865A1 publication Critical patent/WO2002040865A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/12—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements
    • G01F11/20—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates
    • G01F11/22—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates for liquid or semiliquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/08—Scoop devices
    • F04B19/10—Scoop devices of wheel type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation

Definitions

  • the preset invention relates to an apparatus for accumulating and subsequently dispensing an accurate volume of fluid material.
  • a conventional water closet ( C) apparatus wherein a pre-determined level of water is maintained in a cistern by supplying water to the cistern via a float valve, which replenishes the water in the cistern each time the cistern is emptied to flush a toilet bowl or urinal .
  • the float valve of a conventional WC apparatus will begin to discharge water into the cistern whilst the cistern is being emptied, so that the overall volume of water dispensed from the cistern during a flushing cycle will be determined by the relative rates of flow of water into and out of the cistern during the flushing cycle.
  • the cistern of a WC is invariably emptied very quickly.
  • the effect of water flowing into the cistern via the float valve during the flushing period will be minimal and a similar volume of water will be dispensed each time the apparatus is operated.
  • an apparatus comprising adjacent first and second chambers which communicate via a connecting aperture at their interface, and means for supplying the first chamber with fluid to a pre-determined level, the second chamber being rotatable about a horizontal axis: from a first position, wherein the connecting aperture is lowered below said pre-determined level, to fill the second chamber to said pre-determined level, and wherein an outlet aperture in the wall of the second chamber is raised above said pre-determined level; to a second position, wherein the connecting aperture is raised above said pre-determined level, to isolate the fluid in the second chamber from the fluid in the first chamber, and wherein the outlet aperture of the second chamber is lowered below the level of the fluid therein, to discharge fluid from the second chamber; via an intermediate position, wherein the connecting aperture is raised above said pre-determined level and the outlet aperture of the second chamber is raised above the level of the fluid therein, to prevent fluid from flowing directly between the connecting aperture and the outlet aperture of the second chamber.
  • the apparatus may thus be used as a convenient means for accumulating and subsequently dispensing an accurate volume of fluid, wherein the volume of fluid dispensed is substantially unaffected by variations in the rates of flow of fluid into and out of the apparatus.
  • the fluid may, for example, comprise a liquid material or a solid material in a powdered or granular form.
  • the second chamber is arranged such that the level of fluid therein remains at said pre-determined level as the chamber is rotated from said first position to said second position.
  • the fluid supplying means comprise a float valve disposed within the chamber.
  • the first and second chambers are provided within a rotatable drum.
  • the first and second chambers may lie respectively radially inside of and outside of a dividing wall which extends axially of the drum, about its axis.
  • the connecting aperture preferably comprises an aperture in the dividing wall and the outlet of the second chamber comprises an aperture in the exterior side wall or, to one side of the axis of the drum, in the end wall of the drum or in the side wall of an outlet conduit extending partly along the axis of the drum, the two apertures being angularly displaced from one another about the axis of the drum.
  • the connecting and outlet apertures lie substantially on opposite sides of the axis of the drum.
  • the first and second chambers may lie respectively on either side of a dividing wall extending transversely of the drum.
  • the connecting aperture preferably comprises an aperture in the dividing wall, to one side of the axis of the drum
  • the outlet aperture of the second chamber comprises an aperture in the exterior side wall or, to one side of the axis of the drum, in the end wall of the drum, or in the side wall of an outlet conduit extending partly along the axis of the drum, the two apertures being angularly displaced from one another about the axis of the drum.
  • the connecting and outlet apertures lie substantially on opposite sides of the axis of the drum.
  • the second chamber is arranged such that the level of fluid therein is raised as the chamber is rotated from said first position to said second position.
  • the second chamber is arranged such that the level of fluid is raised above its axis of rotation, with the outlet of the second chamber channelling fluid along the axis of rotation.
  • the first and second chambers are provided within a rotatable drum.
  • the first and second chambers preferably lie respectively radially inside of and outside of a dividing wall which extends axially of the drum, about its axis.
  • the connecting aperture preferably comprises an aperture in the dividing wall and fluid flowing from the outlet of the second chamber is channelled out of the drum along the axis of the drum.
  • the connecting and outlet apertures lie substantially on opposite sides of the axis of the drum.
  • a fluid dispensing apparatus comprising a chamber rotatable about a horizontal axis and a float valve disposed within the chamber for supplying fluid to the chamber, the apparatus being arranged such that the float of the valve is normally free to rise and fall to maintain a pre-determined level of fluid within the chamber, but is supported by an isolated body of fluid within the chamber as the chamber is rotated to discharge fluid therefrom.
  • Figures 1 and 2 are sectional front and side elevations respectively of a first embodiment of fluid dispensing apparatus in accordance with the present invention
  • Figure 3 is a sectional front elevation of the drum portion of a second embodiment , of apparatus;
  • Figures 4 and 5 are sectional front and side views respectively of the drum portion of a third embodiment of apparatus;
  • FIG. 6 is a cut-away, exploded perspective view of a fourth embodiment of apparatus .
  • a cylindrical drum 2 is shown mounted to a support frame 3 for rotation about a horizontal axis A.
  • the drum 2 comprises an inner chamber 4 and an outer chamber 6, which are separated from one another by a cylindrical dividing wall 8.
  • a float valve 10 provides a supply of water to the inner chamber 4 via a conduit 12 which extends into the drum
  • Respective apertures 14,16 are formed in the dividing wall 8 and in the side wall 18 of the drum 2 such that, as the drum 2 is rotated clockwise about its axis A, from the position shown in Figures 1 and 2, the aperture 18 in the wall of the drum 2 will first drop " below the level of the water contained in the outer chamber 6, thereby allowing the outer chamber 6 to empty. As the outer chamber 6 is emptied, a body of water remains isolated within the inner chamber 4, which supports the float 20 of the valve 10, thereby holding the valve closed.
  • Figure 3 shows a modified form of drum, wherein a plurality of vanes 22 extend radially outwards between the dividing wall 8 and the side wall of the drum 2 to form a plurality of outer chambers 6, each having a respective outlet aperture 18.
  • each of the outer chambers 6 is filled in turn, via the inner chamber 4, and then isolated from the inner chamber 4 as its respective contents are discharged.
  • Figures 4 and 5 shows a third embodiment of drum, which is divided into first and second compartments 24,26 by a dividing wall 28 which extends transversely of the drum.
  • the two compartments 24,26 communicate via an aperture 30 in the dividing wall 28 which is offset to one side of the axis A of the drum.
  • a further aperture 32 is formed in the side wall of the second chamber 26, on the opposite side of the axis A, such that, as the drum is rotated clockwise about its axis A, from the position shown in Figures 4 and 5, the aperture 32 in the side wall of the drum will drop below the level of the water contained in the second chamber 26, thereby allowing that chamber to empty.
  • Figure 6 shows a further embodiment of drum, omitting the side-wall of the drum, wherein a float valve (not shown) , disposed within an inner chamber 38 of the drum, provides a supply of water to that chamber.
  • a float valve (not shown) , disposed within an inner chamber 38 of the drum, provides a supply of water to that chamber.
  • Respective apertures 40,42 are formed between the inner chamber 38 and two outer chambers 44,46, disposed on either side of a pair of radially-extending vanes 48,50. Further respective apertures 52,54 are formed between each of the outer chambers 44,46 and an outlet conduit 56, which extends partly along the axis of the drum.
  • the various apertures 40,42,52,54 are arranged such that, in the position shown in Figure 6, the outer chamber 46 will partially fill with water via the aperture 42. If the drum is then rotated about its axis in a clockwise direction as indicated by the arrow 58 in Figure 6, the level of the aperture 54 will eventually descend below the level of the water in the outer chamber 46 to allow water to drain from the chamber 46 via the conduit 56.
  • the position of the float valve within the inner chamber 38, and thus the maximum level to which the outer chamber 46 will fill on each rotation of the drum, is preferably chosen such that, through a small angular range during the rotation of the drum, the levels of both of the apertures 42 and 54 will lie above the level of the water in the outer chamber 46 (thereby isolating a body of water within that chamber) .
  • the various apparatus thus described provide convenient means for accumulating and subsequently dispensing an accurate volume of fluid, wherein the volume of fluid dispensed is substantially unaffected by variations in the rates of flow of fluid into and out of the apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention porte sur une appareil comportant des première et deuxième chambres adjacentes (4, 6) communiquant par une ouverture de liaison (14) située au niveau de leur interface, et des éléments (10) destinés à remplir la première chambre avec un liquide à un niveau prédéterminé, la deuxième chambre (6) étant fixée rotative autour d'un axe horizontal A afin d'accumuler et ensuite distribuer un volume de liquide précis. Ledit volume distribué demeure presque insensible aux variations des débits du liquide qui entre dans l'appareil et en sorte.
PCT/GB2001/005025 2000-11-17 2001-11-15 Distributeur de liquide WO2002040865A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002215105A AU2002215105A1 (en) 2000-11-17 2001-11-15 Fluid dispensing apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0028181.6 2000-11-17
GB0028181A GB0028181D0 (en) 2000-11-17 2000-11-17 Fluid dispensing apparatus
GB0104310A GB2369104B (en) 2000-11-17 2001-02-22 Fluid dispensing apparatus
GB0104310.8 2001-02-22

Publications (1)

Publication Number Publication Date
WO2002040865A1 true WO2002040865A1 (fr) 2002-05-23

Family

ID=26245305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/005025 WO2002040865A1 (fr) 2000-11-17 2001-11-15 Distributeur de liquide

Country Status (2)

Country Link
AU (1) AU2002215105A1 (fr)
WO (1) WO2002040865A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385223A (en) * 1966-09-08 1968-05-28 Komline Sanderson Eng Corp Rotary liquid metering wheel
US3552213A (en) * 1968-06-27 1971-01-05 Commissariat Energie Atomique Liquid metering wheel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385223A (en) * 1966-09-08 1968-05-28 Komline Sanderson Eng Corp Rotary liquid metering wheel
US3552213A (en) * 1968-06-27 1971-01-05 Commissariat Energie Atomique Liquid metering wheel

Also Published As

Publication number Publication date
AU2002215105A1 (en) 2002-05-27

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