EP1585878A1 - Ensemble d'admission pour nettoyeur de piscine automoteur - Google Patents

Ensemble d'admission pour nettoyeur de piscine automoteur

Info

Publication number
EP1585878A1
EP1585878A1 EP02782516A EP02782516A EP1585878A1 EP 1585878 A1 EP1585878 A1 EP 1585878A1 EP 02782516 A EP02782516 A EP 02782516A EP 02782516 A EP02782516 A EP 02782516A EP 1585878 A1 EP1585878 A1 EP 1585878A1
Authority
EP
European Patent Office
Prior art keywords
vanes
rotor assembly
vane
assembly according
rotor
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Withdrawn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
EP02782516A
Other languages
German (de)
English (en)
Inventor
Wieslaw Niewiarowski
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.)
KK Australia Pty Ltd
Original Assignee
KK Australia 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 KK Australia Pty Ltd filed Critical KK Australia Pty Ltd
Publication of EP1585878A1 publication Critical patent/EP1585878A1/fr
Withdrawn legal-status Critical Current

Links

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

Definitions

  • a cleaner for a submerged surface comprises a body that defines a suction passage and pressure passage.
  • the suction passage extends between an inlet and outlet in the body and is connectable to the inlet of a filtration system by flexible hose.
  • a second hose connects the inlet on the device to an outlet of the system. Water flowing under pressure to the inlet drives a turbine which in turn drives hind wheels to displace the apparatus over the surface while debris or the like is sucked up through the suction passage and out through the hose that is attached to the filtration system.
  • the suction and return hoses are those of the flexible kind typically used in swimming pool cleaning systems.
  • the turbine type pool cleaner functions in precisely the same way and is correctly identified as a turbine in that mechanical energy to propel the cleaner is derived from the kinetic energy of the high velocity inlet water flow.
  • the present invention differs markedly in that it is analogous to a hydraulic motor.
  • the present invention does not rely upon a high velocity head from the inlet but instead creates a pressure differential between adjacent spaces within the housing of the rotor assembly.
  • the differential pressure applies a force against the inlet side of the vane dividing the spaces having the differential pressure driving the rotor in a direction towards the outlet orifice.
  • the mechanical energy required to drive the pool cleaner is imparted by the work done by the pressure differential and so is dependent upon the force applied and consequently the negative static pressure applied by the pool pump and not the kinetic energy derived from the velocity head of the inlet water flow.
  • This system is inherently more efficient in that velocity head can be reduced by shock losses as the inlet water flow enters the chamber and also losses in impacting the vanes of the turbine.
  • the present invention by adopting a principle similar to a hydraulic motor is inherently more efficient and so displays a distinct advantage over the turbine pool cleaners of the prior art.
  • the invention requires only a rotor having a pressure sealing means such that the static pressure developed by the pool pump drives the rotor rather than the high velocity water jet which is needed for a turbine type pool cleaner. To this end being driven by the static pressure permits the inlet orifice to be as large as possible and so accept larger objects to by passed through the rotor assembly.
  • the vane may be constructed from a flexible material and supported by a more rigid member and so combining the effects of the pressure sealing means with sufficient rigidity to resist the applied force. It must be recognised that in such an arrangement, a balance in the selection of materials must be made so as to be sufficiently flexible to act as a seal but stiff enough so that any unsupported portion of the flexible vane may still resist the applied force. The person skilled in the art will recognise that such a selection, as well as dimensioning the rigid element, will be an iterative process dependent upon the magnitude of the pressure differential.
  • the directional stiffness may be provided by the "tape measure” effect whereby the material of the vane may be metal or plastic in a curved shape whereby the applied force acts on the concave face of the curve.
  • the curved shape increases the moment of inertia of the tape and provides a higher degree of stiffness.
  • a force applied on the convex side of the tape leads to the tape measure flattening. Consequently, there is a substantial reduction in the stiffness of the overall element.
  • the means to selectively stiffen the flexible vanes may be provided by the support elements, which are capable of transmitting the pressure differential to the flexible vane and drawing it into a shaped portion of the support element so that the flexible vane may selectively deform from a flat, low stiffness shape to a higher stiffness curved shape.
  • the flexible vane On release of the pressure differential at and beyond the outlet orifice, the flexible vane may resume the flat orientation and be readily collapsed on contact with the internal wall.
  • the scope to reduce the rotor assembly is dependent upon the size of the support elements but is almost independent of the size of the flexible vanes.
  • Figure 1 is a perspective view of the open sided rotor assembly according to the present invention
  • Figure 2a is a schematic cross-sectional view of the vane of the rotor assembly of Figure 1 ;
  • the rotor assembly 1 is used not only to draw in the inlet water flow 6 but to provide energy to the movement mechanism to propel the pool cleaner about the swimming pool and serve its primary function.
  • the rotor assembly 1 of the present invention comprises a housing 2 and a rotor 3 within the housing, said rotor 3 comprising a plurality of flexible vanes 4 and rigid vane supports 5.
  • the rotor assembly 1 draws the inlet water flow 6 into the housing 2 via inlet orifice 7 and finally expels the outlet water flow 8 through the outlet orifice 9 either to another part of the pool cleaner or directly into the hose arrangement and directs the water flow 8 to the pool filter.
  • the rotor assembly 1 of the present invention is differentiated from a rotor assembly for a turbine type pool cleaner in that the vanes 4, being of a flexible nature, provide a pressure seal 10 between adjacent spaces 11 and 12.
  • the pool pump functions by providing a negative static pressure at the outlet 9 of the housing 2 creating a negative static pressure within space 12.
  • the inlet orifice 7 is sized so that the velocity head of the inlet water flow 6 is small and the static pressure in space 11 is not dissimilar to that of the external static pressure within the swimming pool. Consequently, a pressure differential between space 12 and space 11 creates an applied force pushing the vane 4 towards the outlet 9 and rotating the rotor 3 in a preferred direction.
  • the pressure seal 10 ensures the rotor undergoes work, being the product of the applied static pressure force and the distance through which the rotor is moved and this energy converted to mechanical energy to the mechanism driving the propulsion system for the pool cleaner.
  • a further feature of the rotor assembly 1 according to the present invention is the ability of the rotor 3 to selectively stiffen the flexible vane 4 in the drive portion 14.
  • the vane support 5 has pressure leakage holes 13, which permit the applied static force to be applied to the full length of the flexible vane 4 instead of just the unsupported length. This has the advantage of removing the upper peripheral edge of the support vane 5 from acting as a point of rotation for the unsupported length of the flexible vane 4.
  • the face of the vane support 5 adjacent to the flexible vane 4 is shaped such that as the flexible vane 4 is pressed into the vane support 5 under the applied static pressure force, the flexible vane 4 is resiliently deformed into a curved shape. Consequently, whilst a pressure difference exists between the adjacent spaces 11 and 12, the flexible vane 4 adopts the higher stiffness curved shape and on rotation of the rotor 3, when the pressure difference is equalised adjacent the outlet 9, the flexible vane 4 resiliently reforms a flat shape ready for collapsing into flexible vane 16 on the return portion of the housing.
  • FIG. 2a shows the undeformed cross-sectional shape of the flexible vane 4 of nominal width (B) and depth (D).
  • the neutral (N.A.) axis about which the flexible vane 4 may bend is used to determine the moment of inertia (I) of the cross-sectional shape.
  • a notional relationship between the dimensions are suggested as the width (B) being twenty times that of the depth (D) giving a moment of inertia equal to 1.67 D 4 .
  • Figure 2b shows the deformed shape of the flexible vane 4 should the deformed shape be a half circle.
  • width (B) and depth (D) the moment of inertia of the deformed shape becomes 2,388 D 4 .
  • D depth
  • the selective stiffness of the flexible vane 4 is enhanced on being deformed from a flat strip. It follows that for a range of similar parameters, the person skilled in the art can determine the required stiffness enhancement for the applied static pressure force and determine the material properties, flexible vane size and deformed shape required to resist the applied static pressure force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un ensemble rotor (1) pour un nettoyeur de piscine automoteur, lequel ensemble comprend un carter (2) présentant un orifice d'entrée d'eau (7) et un orifice de sortie d'eau (9), un rotor (3) situé à l'intérieur du carter (2) et présentant une pluralité d'aubes (4) qui définissent une pluralité d'espaces (11, 12) entre des aubes adjacentes (4), chaque aube (4) étant pourvue d'un moyen d'étanchéité (10) formant un joint d'étanchéité entre des espaces adjacents (11, 12) lorsque ce moyen d'étanchéité (10) est en contact avec une paroi interne du carter (2), une pression d'eau statique négative appliquée au niveau de l'orifice de sortie (9) induisant une pression d'eau différentielle entre deux espaces adjacents (11, 12), de façon à provoquer la rotation du rotor (3).
EP02782516A 2002-12-13 2002-12-13 Ensemble d'admission pour nettoyeur de piscine automoteur Withdrawn EP1585878A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AU2002/001688 WO2004055299A1 (fr) 2002-12-13 2002-12-13 Ensemble d'admission pour nettoyeur de piscine automoteur

Publications (1)

Publication Number Publication Date
EP1585878A1 true EP1585878A1 (fr) 2005-10-19

Family

ID=32513234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02782516A Withdrawn EP1585878A1 (fr) 2002-12-13 2002-12-13 Ensemble d'admission pour nettoyeur de piscine automoteur

Country Status (5)

Country Link
US (1) US20060143841A1 (fr)
EP (1) EP1585878A1 (fr)
AU (1) AU2002347199A1 (fr)
CA (1) CA2509371A1 (fr)
WO (1) WO2004055299A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7690066B2 (en) * 2005-11-03 2010-04-06 Zodiac Pool Care, Inc. Automatic pool cleaner
CN102159793A (zh) * 2008-09-23 2011-08-17 祖迪雅克泳池设备欧洲公司 流体供能的马达和泵
CA2803749A1 (fr) * 2010-06-28 2012-01-05 Zodiac Pool Care Europe Nettoyeurs automatiques de piscine et composants associes
US9222274B1 (en) * 2012-09-05 2015-12-29 Gsg Holdings, Inc. Angled pool valve module
EP2914789B1 (fr) 2012-10-30 2018-07-25 Pavel Sebor Appareil de nettoyage de piscine à entraînement
US10036175B2 (en) 2012-10-30 2018-07-31 Pavel Sebor Turbine-driven swimming pool cleaning apparatus and method
CA2921924A1 (fr) 2013-08-30 2015-03-05 Hayward Industries, Inc. Appareil de nettoyage de piscine
WO2021167872A1 (fr) 2020-02-19 2021-08-26 Pavel Sebor Appareil de nettoyage automatique de piscine

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US847060A (en) * 1906-06-28 1907-03-12 Cleophas Gamache Brush.
US3321787A (en) * 1964-12-17 1967-05-30 Robert R Myers Swimming pool cleaning means
US3803658A (en) * 1971-01-14 1974-04-16 J Raubenheimer Cleaning devices
US3959838A (en) * 1974-02-28 1976-06-01 Harvey John Hannah Underwater cleaning
DE2529183C2 (de) * 1974-07-05 1984-10-04 Benedikt Burgdorf Bern Strausak Fahrbare Maschine zum Reinigen eines Schwimmbeckens
DE2612043A1 (de) * 1976-03-22 1977-09-29 Berg Ferdi A Fahrbares geraet zum reinigen von schwimmbecken durch ansaugen und absondern von im bereich des beckenbodens befindlichen sinkstoffen
US4208752A (en) * 1976-08-23 1980-06-24 Hofmann Helmut J Cleaning apparatus for submerged surfaces
US4394140A (en) * 1977-12-30 1983-07-19 Smith International, Inc. Degassing system and centrifugal pump
US4536908A (en) * 1982-04-02 1985-08-27 Peacock Investments (Proprietary) Limited Suction cleaners
US4840645A (en) * 1983-04-15 1989-06-20 Allied-Signal Inc. Rotary separator with a porous shroud
US4939806A (en) * 1988-01-07 1990-07-10 Liberty Pool Products S.A. Pool cleaner
US5099535A (en) * 1988-02-18 1992-03-31 Daniel J. D. Chauvier Cleaner for submerged surfaces
US5402569A (en) * 1994-02-28 1995-04-04 Hypro Corporation Method of manufacturing a pump with a modular cam profile liner
US5554004A (en) * 1995-07-27 1996-09-10 Ametek, Inc. Fan impeller assembly
US6193465B1 (en) * 1998-09-28 2001-02-27 General Electric Company Trapped insert turbine airfoil
US6292970B1 (en) * 1999-10-12 2001-09-25 Poolvergnuegen Turbine-driven automatic swimming pool cleaners
TR200401240T4 (tr) * 2000-01-28 2004-08-23 New Ermes Europe S. P. A. Toz ve döküntü toplama cihazı.
US6854148B1 (en) * 2000-05-26 2005-02-15 Poolvernguegen Four-wheel-drive automatic swimming pool cleaner
US6782578B1 (en) * 2000-05-26 2004-08-31 Poolvergnuegen Swimming pool pressure cleaner with internal steering mechanism
WO2002001023A1 (fr) * 2000-06-24 2002-01-03 Henkin Melvyn Lane Dispositif de commande de turbine et procede conçu pour epurateur de piscine aspirant a alimentation electrique
US6354797B1 (en) * 2000-07-27 2002-03-12 General Electric Company Brazeless fillet turbine nozzle
DE10128790A1 (de) * 2001-06-13 2002-12-19 Stihl Maschf Andreas Ansaugvorrichtung für die Verbrennungsluft eines Verbrennungsmotors in einem handgeführten Arbeitsgerät
JP2003106103A (ja) * 2001-10-02 2003-04-09 Honda Motor Co Ltd 回転機の静翼
US6984315B2 (en) * 2003-12-16 2006-01-10 Dolton Iii Edward Gerard Pool cleaning device
US7472478B2 (en) * 2004-10-29 2009-01-06 Honeywell International Inc. Adaptive machining and weld repair process
US7341431B2 (en) * 2005-09-23 2008-03-11 General Electric Company Gas turbine engine components and methods of fabricating same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004055299A1 *

Also Published As

Publication number Publication date
WO2004055299A1 (fr) 2004-07-01
AU2002347199A1 (en) 2004-07-09
US20060143841A1 (en) 2006-07-06
CA2509371A1 (fr) 2004-07-01

Similar Documents

Publication Publication Date Title
EP0994995B1 (fr) Appareil de nettoyage des surfaces immergees d'une piscine
US6751822B2 (en) Submerged surface pool cleaning device
US6782578B1 (en) Swimming pool pressure cleaner with internal steering mechanism
US5033148A (en) Apparatus for cleaning a surface submerged in a liquid
US7805792B2 (en) Pool cleaning robot
US7293314B2 (en) Turbine drive apparatus and method suited for suction powered swimming pool cleaner
EP1387918B1 (fr) Vanne a commande magnetique destinee a un appareil de nettoyage de piscine fonctionnant par aspiration
EP2275626A3 (fr) Dispositif de nettoyage de piscine alimenté par aspiration
NZ333405A (en) Water suction powered automatic swimming pool cleaning system
RU2271425C2 (ru) Робот с прижимным клапаном для автоматической очистки бассейна и способ повышения способности робота для автоматической очистки бассейна
AU2002305514A1 (en) Magnetic control valve for a suction powered pool cleaner
WO2004055299A1 (fr) Ensemble d'admission pour nettoyeur de piscine automoteur
US5384928A (en) Submerged surface cleaner
US5706540A (en) Automatic cleaners for sweeping and cleaning swimming pools
EP0556029A1 (fr) Appareil de nettoyage automatique de piscine et son dispositif de direction
CA2414101C (fr) Dispositif de nettoyage a air comprime pour piscine pourvu d'un mecanisme de guidage interne
EP0239498A2 (fr) Appareil de déplacement pour nettoyeur submergé
EP0558337A1 (fr) Aspirateur sous-marin auto-propulsé et méthode de nettoyage
US7039979B2 (en) Apparatus for maintaining pressure on underwater vacuum cleaning device
US20110088725A1 (en) Guide device for an automatic device for cleaning a surface immersed in a liquid
EP1338727A1 (fr) Appareil de nettoyage des surfaces immergées d'une piscine
WO1999024683A1 (fr) Dispositif de nettoyage d'une surface immergee
PT89847A (pt) Pool cleaner
CN1166456A (zh) 脉动潜水式泳池吸尘器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050705

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: NIEWIAROWSKI, WIESLAW

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080701