EP0357810A1 - Soupape - Google Patents

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Publication number
EP0357810A1
EP0357810A1 EP88114071A EP88114071A EP0357810A1 EP 0357810 A1 EP0357810 A1 EP 0357810A1 EP 88114071 A EP88114071 A EP 88114071A EP 88114071 A EP88114071 A EP 88114071A EP 0357810 A1 EP0357810 A1 EP 0357810A1
Authority
EP
European Patent Office
Prior art keywords
inlet
chamber
valve
outlet
closure member
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.)
Withdrawn
Application number
EP88114071A
Other languages
German (de)
English (en)
Inventor
Carl Frederick Wilhelm Supra
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.)
LIBERTY POOL PRODUCTS Pty Ltd
Original Assignee
LIBERTY POOL PRODUCTS Pty Ltd
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 LIBERTY POOL PRODUCTS Pty Ltd filed Critical LIBERTY POOL PRODUCTS Pty Ltd
Publication of EP0357810A1 publication Critical patent/EP0357810A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners
    • E04H4/1663—Self-propelled cleaners the propulsion resulting from an intermittent interruption of the waterflow through the cleaner

Definitions

  • This invention relates to a valve.
  • a cleaner of this type normally includes a suction head which is connected to a suction source, positioned for example in a swimming pool weir, by means of a flexible hose. Water flow through the hose is used to impart random movement to the suction head in any one of a variety of ways. In this way the suction head is caused to traverse the submerged surface of the swimming pool.
  • the invention provides a valve which includes a housing, a chamber being formed within the housing, at least a first inlet which is provided to the chamber, an outlet which is provided from the chamber, the outlet being adapted to be connected to a fluid body which is at a lower pressure than a fluid body at the first inlet, and a closure member which is located in the chamber and which is movable by fluid flow through the chamber to the outlet so that it at least partly closes the first inlet.
  • closure member is adapted effectively to seal the first inlet.
  • the valve may include biasing means which acts on the closure member and which biases the closure member towards a position at which the first inlet permits fluid flow to the outlet.
  • biasing means which acts on the closure member and which biases the closure member towards a position at which the first inlet permits fluid flow to the outlet.
  • the valve may be designed so that when the closure member closes off the first inlet a stable condition pertains in that the first inlet remains sealed.
  • the valve may be designed so that the closure member is placed in an unstable condition in the sense that once the first inlet is sealed the biasing means causes the closure member to be restored to its original position and fluid flow through the first inlet again takes place. This cycle repeats and an oscillating movement of the closure member ensues.
  • the valve may include a second inlet to the chamber.
  • the second inlet may be permanently open. Thus fluid flow may at all times be allowed to take place from the second inlet to the outlet.
  • the second inlet and the outlet may be positioned on a common axis.
  • the first inlet may comprise a plurality of apertures or a single aperture. In either case the aperture or apertures may be positioned transversely to a line extending from the second inlet to the outlet.
  • Means may be provided for limiting the degree of movement of the closure member.
  • the closure member may include a passage for fluid flow. At least a portion of the passage may be of reduced cross section relatively to the remainder. A venturi may be defined within the closure member.
  • Fluid from the second inlet may flow through at least part of the passage in the closure member.
  • fluid from the first inlet may flow through at least part of the passage.
  • the valve may be provided in combination with a pool cleaner of the suction type which is connected by means of a flexible hose to a suction source, the valve being located for example in the flexible hose.
  • the outlet may, therefore, be connected to the suction side and the second inlet may be connected to the pool cleaner by means of the flexible hose.
  • the valve may be positioned so that the first inlet is at all times submerged.
  • the valve may for example be positioned at a weir and may be used to connect the flexible hose to a suction inlet on the weir.
  • valve may be formed integrally with a weir, with the first inlet preferably being positioned so that at all times it is located below the water level.
  • the valve in one embodiment may include only one inlet which is the first inlet. Under these conditions the closure member operates so that fluid flow from the first inlet to the outlet is intermittently interrupted.
  • a pulsating fluid flow of this type is suitable for causing random movement of a suction type swimming pool cleaner which is connected to means of a flexible hose to a suction source.
  • the invention is intended to include a swimming pool cleaner which includes a valve of this type.
  • Figure 1 illustrates a valve 10 which includes a body 12 in which is formed a chamber 14.
  • the chamber has an outlet 16 and a first inlet 18 to the chamber which is defined by means of a plurality of relatively small holes 20 which are formed through the wall of the housing 12 transversely to a longitudinal axis of the chamber.
  • a second inlet 22 is provided into the chamber on a side which opposes the outlet 16.
  • annular closure member 24 Located within the chamber 14 is an annular closure member 24.
  • the closure member is positioned between annular steps 26 and 28 which limit its axial movement.
  • a spring 30 abuts a third annular step 32 and acts on the closure member 24 biasing it to the right in the drawing. At this right-hand position the closure member 24 is displaced clear of the holes 20.
  • the outlet 16 is connected, for example, to a suction inlet 80 of a swimming pool weir 82, see Figure 3.
  • the valve is positioned so that the holes 20 are at all times below the surface of the water in the swimming pool.
  • the second inlet 22, which it is to be noted is located at one end of a spigot-like projection of the valve, is connected to one end of a flexible hose 84 which leads to a suction type swimming pool cleaner 86.
  • the swimming pool cleaner may be of any suitable known type. Its operation is not important to an understanding of the invention.
  • the valve of the invention may be provided as a separate unit located for example at an intermediate position 10A in the flexible hose 84, or as a device which is formed integrally with the weir 82 for example. In either embodiment the valve functions so that it opens the first inlet 18 when air enters the second inlet 22 and closes the first inlet 18 when water flow through the second inlet rises at least above a certain level.
  • the second inlet 22 is sealed.
  • the valve 10 is formed with the first inlet 18 only.
  • the valve is mounted inside a dome 90 of a suction type pool cleaner which is connected to a suction source through a flexible hose 92 leading from the outlet 16.
  • suction force is applied to the outlet 16 water flows through the first inlet 18 and the closure member 24 is moved to the left in the drawing against the action of the spring 30.
  • the spring 30 biases the member 24 to the right and the rate of fluid flow increases.
  • the closure member 24 oscillates continuously in this fashion with the result that a pulsating stream of water flows through the outlet 16 and then through the hose 92.
  • valve of the invention when used in conjunction with a suction head, can form an automatic suction type swimming pool cleaner.
  • the invention is intended to cover this development.
  • FIG. 2 illustrates a valve 110 which includes a body 112 in which is formed a chamber 114.
  • the body is connected to an extension piece 116 which in turn is connected by means of threads 118 to an outlet connector 120.
  • the connector forms an inner shoulder 122 which abuts a helical spring 124 positioned in the chamber 114.
  • a first inlet 126 to the chamber 114 is formed by means of a plurality of holes 128 positioned peripherally on the body 112.
  • a second inlet 130 to the chamber is formed at its right hand end.
  • a closure member 132 Mounted inside the chamber 114 is a closure member 132.
  • This member includes an inner skirt 134 which defines a venturi, and a plurality of holes 136 which respectively are in register with the holes 128 in the body 112. Relative axial movement between the member 132 and the body 112 is prevented by means of a stop 138 which is located in an axially extending groove 140. This arrangement permits a limited degree of relative axial movement between the components.
  • the connector 120 is connected to the suction side of a pump, not shown, which forms part of the filtration system of a swimming pool.
  • the second inlet 130 at the right hand side of the body 112, is connected to one end of a flexible hose.
  • the other end of the hose is connected to a pool cleaner.
  • the holes 128 are submerged in the water of the swimming pool.
  • the valve 110 is located in a weir and, at least for new installations, the valve preferably is formed integrally with a weir.
  • the oscillating valve member gradually causes the air in the hose to be extracted from the hose and eventually the hose is filled with water.
  • a stage is reached then at which, when the member 132 moves to the left in the drawing, the water flow through the inlet 130, i.e. from the pool cleaner, is such that the valve member is kept, at all times, at the left hand position. In other words the entire water flow is directed now through the second inlet and no water flows through the first inlet which consists of the holes 128.
  • the reduction in water flow rate through the chamber 114 causes a reduction in the balancing force applied to the valve member 132 and this member is therefore moved immediately to the right by means of the spring 124. Water can then enter the chamber 114 through the holes 128 and the oscillating action of the valve member recommences and continues until such time as all air is extracted from the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Check Valves (AREA)
EP88114071A 1987-02-23 1988-08-29 Soupape Withdrawn EP0357810A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA871288 1987-02-23
ZA88113A ZA88113B (en) 1987-02-23 1988-01-08 Valve

Publications (1)

Publication Number Publication Date
EP0357810A1 true EP0357810A1 (fr) 1990-03-14

Family

ID=27137919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114071A Withdrawn EP0357810A1 (fr) 1987-02-23 1988-08-29 Soupape

Country Status (2)

Country Link
EP (1) EP0357810A1 (fr)
ZA (1) ZA88113B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693499A1 (fr) * 1992-07-10 1994-01-14 Puech Frederic Procédé pour maintenir immergé dans l'eau d'une piscine un dispositif automatique de nettoyage de piscines, et dispositif correspondant.
WO1996013644A1 (fr) * 1994-10-28 1996-05-09 Sweepy International S.A. Appareils de nettoyage automatique pour piscines et composants associes
AU702602B2 (en) * 1994-10-28 1999-02-25 Sweepy International S.A. Automatic swimming pool cleaners and associated components
US5882512A (en) * 1997-11-05 1999-03-16 Baracuda International Corporation Automatic swimming pool cleaners and associated components and systems
US5930856A (en) * 1997-04-08 1999-08-03 Baracuda International Corp. Automatic swimming pool cleaners and associated components
WO2006110928A1 (fr) * 2005-04-14 2006-10-19 Man Fui Tak Systeme de nettoyage de piscine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378254A (en) * 1977-12-13 1983-03-29 Chauvier Fernand L O J Method for simultaneously cleaning and skimming a vessel containing a liquid
US4683599A (en) * 1984-03-30 1987-08-04 Fahet Nv Automatic pool cleaner fitting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378254A (en) * 1977-12-13 1983-03-29 Chauvier Fernand L O J Method for simultaneously cleaning and skimming a vessel containing a liquid
US4683599A (en) * 1984-03-30 1987-08-04 Fahet Nv Automatic pool cleaner fitting

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693499A1 (fr) * 1992-07-10 1994-01-14 Puech Frederic Procédé pour maintenir immergé dans l'eau d'une piscine un dispositif automatique de nettoyage de piscines, et dispositif correspondant.
WO1996013644A1 (fr) * 1994-10-28 1996-05-09 Sweepy International S.A. Appareils de nettoyage automatique pour piscines et composants associes
US5546982A (en) * 1994-10-28 1996-08-20 Baracuda International Corp. Automatic swimming pool cleaners and associated components
US5720068A (en) * 1994-10-28 1998-02-24 Baracuda International Corporation Automatic swimming pool cleaners and associated components
AU691053B2 (en) * 1994-10-28 1998-05-07 Zodiac Pool Care Europe Sa Automatic swimming pool cleaners and associated components
AU702602B2 (en) * 1994-10-28 1999-02-25 Sweepy International S.A. Automatic swimming pool cleaners and associated components
US5930856A (en) * 1997-04-08 1999-08-03 Baracuda International Corp. Automatic swimming pool cleaners and associated components
US5882512A (en) * 1997-11-05 1999-03-16 Baracuda International Corporation Automatic swimming pool cleaners and associated components and systems
WO2006110928A1 (fr) * 2005-04-14 2006-10-19 Man Fui Tak Systeme de nettoyage de piscine
US7862712B2 (en) 2005-04-14 2011-01-04 Man Fui Tak Swimming pool cleaning system

Also Published As

Publication number Publication date
ZA88113B (en) 1988-08-31

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