EP1242189A1 - Dispositif et procede de nettoyage ameliore - Google Patents

Dispositif et procede de nettoyage ameliore

Info

Publication number
EP1242189A1
EP1242189A1 EP00988517A EP00988517A EP1242189A1 EP 1242189 A1 EP1242189 A1 EP 1242189A1 EP 00988517 A EP00988517 A EP 00988517A EP 00988517 A EP00988517 A EP 00988517A EP 1242189 A1 EP1242189 A1 EP 1242189A1
Authority
EP
European Patent Office
Prior art keywords
cleaning apparatus
high pressure
cleaning
inlet hose
head
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Withdrawn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
EP00988517A
Other languages
German (de)
English (en)
Other versions
EP1242189A4 (fr
Inventor
Michael John Hall
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.)
Hydra-Wash Pty Ltd
Original Assignee
Hydra-Wash 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 Hydra-Wash Pty Ltd filed Critical Hydra-Wash Pty Ltd
Publication of EP1242189A1 publication Critical patent/EP1242189A1/fr
Publication of EP1242189A4 publication Critical patent/EP1242189A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2220/00—Type of materials or objects being removed
    • B08B2220/02—Chewing gum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft

Definitions

  • the present invention relates to an improved cleaning device and method, and in particular to such a device and method which is used to clean paths, driveways and the like, formed of concrete, tile or like surface materials.
  • the first is by applying a cleaning agent, such as an abrasive chemical or acid, and scrubbing the surface with the aid of a brush or like implement.
  • a cleaning agent such as an abrasive chemical or acid
  • the other known, and more recently developed method is the use of a high pressure spraying device, which provides a narrow stream of high pressure water from a wand-like tool. The tool is moved from side to side such that the high pressure stream is transversed over the entire surface in a systematic manner. Whilst it is appreciated that this method is different to the aforementioned method and is perhaps less physically exerting for the person operating the device, it is still somewhat time-consuming and expensive to operate.
  • the present invention seeks to provide a device and method for cleaning hard surfaces such as concrete and tiled surfaces, driveways and the like.
  • the present invention provides a cleaning apparatus, including: a substantially enclosed, such as concavely shaped head; an inlet hose connected to said head to supply a high pressure liquid jet to said head.
  • said inlet hose is connected to said head by a universal joint enabling three dimensional movement of said inlet hose relative thereto.
  • a controlled stream of liquid is supplied towards a substrate surface from said inlet hose.
  • the liquid is heated.
  • said liquid is water and optionally includes a cleaning agent.
  • said high pressure liquid is supplied to said inlet hose from a hydraulic control system.
  • said hydraulic control system is powered by an automobile engine.
  • the hydraulic control system is operated by said automobile engine when an electromagnetic clutch is engaged.
  • said hydraulic supply includes means for self regulating the pressure of said high pressure liquid supplied to said inlet hose.
  • said hydraulic circuit includes a throttle adjuster, to sense hydraulic system pressure and thereby control engine speed, an inverter, etc..
  • said hydraulic circuit further includes a heater to heat said cleaning liquid.
  • said heater is powered by said automobile engine via an inverter (DC to AC).
  • inverter DC to AC
  • a pressure switch is used to sense when a high pressure Jetstream is required to then operate said heater.
  • said hydraulic system further includes a header tank.
  • said header tank is connected to a mains supply, the water passing through a heat exchange.
  • said apparatus is used to clean concrete, tiled, paved or other hard substrate surfaces, typically used on driveways, paths and patio areas, for removal of dirt, oil and chemical spills, moss and mould, etc.
  • Fig. 1 illustrates a preferred embodiment of the apparatus, showing the head and fluid inlet hose;
  • Fig. 2 shows a schematic representation of the hydraulic control system of the present invention.
  • the apparatus 1 depicted in Figs. 1 and 2 shows the cleaning head 2, and the hydraulic control system (Fig. 2,) respectively, forming the device and method for cleaning, in accordance with the present invention.
  • the cleaning head 2 as illustrated in Fig. 1, is typically a housing of substantially concave shape as shown, having an inlet hose 3 connected thereto, preferably centrally, to supply a high pressure liquid jet to said head. Any other substantially enclosed shaped housing may alternatively be used.
  • the inlet hose 3 is preferably connected by means of a universal joint connection 4, allowing maximum three-dimensional movement of the inlet hose 3 relative to the head 2.
  • the liquid jet supplied to the head may be directed in a variety of manners, depending upon the particular type of surface to be cleaned and upon the material to be cleaned therefrom. For example, a single centrally provided jet stream may be directed towards the substrate surface, or, a plurality of finer jets may be dispensed at any desired angle, etc. Additional mechanical devices, which rotate or otherwise operate may be provided under the head for additional cleaning function, if desired.
  • the liquid jet may be water, and/or may include chemical additives such as cleaning agents, and / or may be heated.
  • Fig. 1 is achieved by the associated use of an appropriate hydraulic circuit to supply the liquid at the desired pressure, etc.
  • An appropriate hydraulic circuit to achieve this purpose is illustrated in Fig. 2.
  • the Applicant has designed a device which is uniquely powered by an automobile engine and which is self regulating, providing a consistent high pressure jet stream to perform the required cleaning function, a low pressure wash down stage, and, an idle stage whereby the motor speed is reduced to minimise noise, fuel consumption and increase operating life.
  • the equipment is preferably installed on the back of a utility or like vehicle, in a manner which it is able to be easily set up for use and then packed up when finished.
  • a multiple rib drive belt system with an electromagnetic clutch to disconnect the hydraulic pump drive from the vehicles engine is used to remove the need for an auxiliary engine to drive the high pressure wash pump. This reduces the maximum engine noise to that the vehicles engine, and also reduce the weight and increased space at the rear of the vehicle.
  • a heating unit to heat the water, is installed in the vehicle. For washing, the water is heated to over 80°C.
  • a sine- wave power inverter is used to convert the vehicles DC power to AC, which power the heating units fan and electrics. By using an inverter, the need for an auxiliary generator is eliminated, which reduces weight and space requirements.
  • a unique feature of the heating system is that a pressure switch is used to switch the heater on and off.
  • This pressure switch is set so it is above the wash down pressure and high pressure cleaning pressure. Therefore, the heater only works when high pressure cleaning and not when low pressure washing down.
  • the larger jet in the wash down nozzle changes the pressure so the operator does not need to go back to the vehicle and turn the heater on and off between high pressure cleaning and low pressure wash down.
  • a hydraulic throttle valve is fitted to the engine which senses the hydraulic system pressure to control the engine speed. This gives the system some unique characteristics. Firstly, when the high pressure water is shut off via a gun or ball valve, an unloading valve unloads the high pressure water system, reducing the pressure in both water and hydraulics.
  • This reduction in the pressure of our hydraulic system is detected at the pressure sensing throttle we have fitted and reduces the engine speed to idle when the outlet water is shut off. This reduces noise, reduces fuel consumption and increases the operating life of the hydraulic system.
  • the throttle valve has the advantage that it governs the system and adds a safety feature, in that if a high pressure hose should burst, the truck immediately goes to idle reducing excess hot or cold water being blown around out of control.
  • the hydraulic engine throttle therefore allows our trucks engine speed to be precisely tuned and maintained when the system is running.
  • a header tank of water to supply the high pressure water tank is also provided.
  • the supply hose When the supply hose is connected to an external water supply, the water passes through a heat exchanger with the hydraulic system oil flowing through it.
  • tap water By using tap water to cool the hydraulic system the size of the systems hydraulic tank is able to be reduced, consequently reducing vehicle weight and saving space.
  • the hydraulic control valve is built with a unique configuration to simplify the vehicles operation and reduce weight.
  • the basic operation of the valve in activating the operating lever into position achieving the following automatically. Firstly, an electric switch on the valve engages the electromagnetic clutch. At the same time, the oil flow to the hydraulic motor sends a signal to the engine throttle which automatically sets the engine to the correct RPM, such that the pressure switch then operates the burner.
  • the hydraulic valve has a safety overflow valve built into the inlet to protect the water pump and port reliefs to control the retraction speed of the reels.
  • the hose reels for the cleaning device may be fitted with hydraulic motors to systematically reduce the effort and time of packing up the systems.
  • the hydraulic circuit shown in Fig. 2 is a unique self-regulating circuit incorporating a pressure sensor, throttle adjuster and inverter to achieve this effect and provide a high pressure liquid jet.
  • the cleaning fluid is typically supplied at between 12,410 kPA to 27,258 kPA at a rate of greater than 18 litres per minute and at a temperature of greater than 80°C.
  • the pressure is typically less than 6 kPA.
  • the present invention therefore provides a cleaning apparatus which has a unique cleaning head in addition to a unique hydraulic circuit to supply a regulated high pressure fluid steam to perform the desired cleaning operation.
  • the hydraulic flow can be reduced via the control valve, which enables the water flow and pressures to be reduced, easily and accurately to clean delicate surfaces.
  • the device of the present invention therefor may be used to remove oil, grease, moss, chewing gum and other grime from the pavement and similar surfaces. This avoids the need to use harmful caustic chemicals.
  • the device of the present invention is also considerably less noisy than prior art systems.
  • the circuit of the present invention can be operated at below 80 decibels, enabling work to be conducted 24 hours a day, if required.
  • the device of the present invention has many applications, including, but not limited to: -

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

La présente invention concerne un appareil de nettoyage (91) destiné à nettoyer des surfaces dures telles que des surface en béton, des dalles, des pavés, etc. L'appareil de nettoyage de l'invention comprend une tête intégrée (2) de forme sensiblement concave et un tuyau d'alimentation (3) relié à la tête, qui fournit un jet de liquide sous haute pression. Le tuyau est de préférence relié à la tête par un joint universel (4) afin de permettre un mouvement dans les trois dimensions. Un circuit hydraulique règle l'alimentation en fluide nettoyant du jet liquide, alimentation qui est de préférence entraînée par un moteur d'automobile afin de faciliter le transport.
EP00988517A 1999-12-21 2000-12-21 Dispositif et procede de nettoyage ameliore Withdrawn EP1242189A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPQ477799 1999-12-21
AUPQ4777A AUPQ477799A0 (en) 1999-12-21 1999-12-21 Improved cleaning device and method
PCT/AU2000/001602 WO2001045854A1 (fr) 1999-12-21 2000-12-21 Dispositif et procede de nettoyage ameliore

Publications (2)

Publication Number Publication Date
EP1242189A1 true EP1242189A1 (fr) 2002-09-25
EP1242189A4 EP1242189A4 (fr) 2004-05-12

Family

ID=3818916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00988517A Withdrawn EP1242189A4 (fr) 1999-12-21 2000-12-21 Dispositif et procede de nettoyage ameliore

Country Status (3)

Country Link
EP (1) EP1242189A4 (fr)
AU (1) AUPQ477799A0 (fr)
WO (1) WO2001045854A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050048876A1 (en) 2003-09-02 2005-03-03 Applied Materials, Inc. Fabricating and cleaning chamber components having textured surfaces
US9328927B2 (en) 2008-09-12 2016-05-03 Changzhou Gardensun Furnace Co., Ltd. All around radiation heating apparatus
US9358667B2 (en) 2014-10-30 2016-06-07 Shape Technologies Group, Inc. System and method for low pressure piercing using a waterjet cutter
CN114378078A (zh) * 2022-01-21 2022-04-22 河南弘康环保科技有限公司 一种二沉池出水围堰青苔高效冲洗装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997114A (en) * 1975-04-03 1976-12-14 Kem-O-Kleen, Inc. High pressure spray cleaning apparatus
DE2531185A1 (de) * 1975-07-12 1977-02-03 Oldenburger Betonsteinwerke Vorrichtung zur beseitigung klebender verunreinigungen von einer befestigten verkehrsflaeche
FR2471446A1 (fr) * 1979-12-13 1981-06-19 Lardeau Henri Dispositif de nettoyage de surfaces compactes telles que des sols
US4584736A (en) * 1983-01-26 1986-04-29 Gottfried Gremminger Surface cleaning apparatus
EP0597787A1 (fr) * 1992-11-03 1994-05-18 Pierre Truffert Appareil de nettoyage de sols par eau sous pression
US5706548A (en) * 1995-11-13 1998-01-13 Schabacker; Nolan D. Pressure washer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401987C2 (de) * 1984-01-20 1986-01-30 Alfred Kärcher GmbH & Co, 7057 Winnenden Hochdruckreinigungsgerät
DE3619326A1 (de) * 1986-06-09 1987-12-10 Josef Kraenzle Pumpeneinheit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997114A (en) * 1975-04-03 1976-12-14 Kem-O-Kleen, Inc. High pressure spray cleaning apparatus
DE2531185A1 (de) * 1975-07-12 1977-02-03 Oldenburger Betonsteinwerke Vorrichtung zur beseitigung klebender verunreinigungen von einer befestigten verkehrsflaeche
FR2471446A1 (fr) * 1979-12-13 1981-06-19 Lardeau Henri Dispositif de nettoyage de surfaces compactes telles que des sols
US4584736A (en) * 1983-01-26 1986-04-29 Gottfried Gremminger Surface cleaning apparatus
EP0597787A1 (fr) * 1992-11-03 1994-05-18 Pierre Truffert Appareil de nettoyage de sols par eau sous pression
US5706548A (en) * 1995-11-13 1998-01-13 Schabacker; Nolan D. Pressure washer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0145854A1 *

Also Published As

Publication number Publication date
WO2001045854A1 (fr) 2001-06-28
AUPQ477799A0 (en) 2000-02-03
EP1242189A4 (fr) 2004-05-12

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