EP0887122A2 - Dispositif de nettoyage à l'eau sous haute pression - Google Patents

Dispositif de nettoyage à l'eau sous haute pression Download PDF

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Publication number
EP0887122A2
EP0887122A2 EP98102583A EP98102583A EP0887122A2 EP 0887122 A2 EP0887122 A2 EP 0887122A2 EP 98102583 A EP98102583 A EP 98102583A EP 98102583 A EP98102583 A EP 98102583A EP 0887122 A2 EP0887122 A2 EP 0887122A2
Authority
EP
European Patent Office
Prior art keywords
pinion
pump
pressure
toothed ring
cleaning device
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Withdrawn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
EP98102583A
Other languages
German (de)
English (en)
Other versions
EP0887122A3 (fr
Inventor
Konrad Westermann
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.)
Elektra Beckum AG
Original Assignee
Elektra Beckum AG
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 Elektra Beckum AG filed Critical Elektra Beckum AG
Publication of EP0887122A2 publication Critical patent/EP0887122A2/fr
Publication of EP0887122A3 publication Critical patent/EP0887122A3/fr
Withdrawn legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/92—Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/04—Composite, e.g. fibre-reinforced

Definitions

  • the invention relates to a water high-pressure cleaning device with the features of The preamble of claim 1.
  • Water high-pressure cleaning devices so-called high-pressure cleaners, are for the Hobby area and professional area known in a variety of embodiments.
  • water high-pressure cleaning devices water in the pressure range between 60 and 250 bar, occasionally even at higher pressures, promoted to cleaning tasks to fulfill.
  • the goal is always a high level of performance, that is to say a considerable level Pump performance with the lowest possible weight and low purchase price to realize.
  • the invention has for its object the known water high-pressure cleaning device compared to the previously described state of the art in design to further improve the high pressure pump.
  • Internal gear pumps have the same principle of operation as external gear pumps.
  • the arrangement of the gears allows internal gear pumps a particularly compact design and overall very favorable installation dimensions.
  • the combination of internal gear and external gear leads to a longer one Gear mesh than with external gear pumps. This results in a better one Sealing effect as well as larger suction and pressure angles.
  • Internal gear pumps have due to the more favorable engagement conditions and the compact arrangement a lower noise level than external gear pumps. Particularly low flow and filling losses lead to a particularly good suction behavior. Finally, internal gear pumps have a relatively low one Fluctuation of the volume flow.
  • an internal gear pump is a gerotor pump according to claim 2 the internally toothed toothed ring regularly has one tooth more than the toothed outside Pinion.
  • the pressure chamber of a gerotor pump is different from that of a normal internal gear pump not separated from the suction chamber by a sickle-shaped filler.
  • a special design of the teeth based on trochoid teeth ensures the seal between the internal toothed ring and the externally toothed pinion. With an adapted design of the teeth touch Tooth heads exactly opposite the point of mesh. The teeth roll on each other from. By touching the teeth in the pitch points, the individual Displacement rooms sealed against each other.
  • the rolling motion of the gerotor pump is particularly suitable for use in a water high-pressure cleaning device, since there is hardly any sliding movement of the teeth occur on each other. That makes the choice of materials for the toothed ring and pinion Taking into account the corrosive effects of water a little easier.
  • gerotor pump that is suitable for A gerotor pump is particularly suitable for a high-pressure water cleaning device with pinion driven by the drive shaft and entrained by the pinion Gear ring. If the internal toothed ring has one tooth more than the outside toothed pinion, the speed of the toothed ring is correspondingly lower than the speed of the pinion. The eccentricity of the pinion is with the gerotor pump permanently set.
  • the cleaning water is supplied and removed axially.
  • the pump housing is subjected to one side by a pressure field that does not change its position.
  • the high-pressure cleaning device shown initially has a housing 1, one of which High-pressure hose 2 leads to a high-pressure cleaning lance 3.
  • Such high-pressure cleaning devices Colloquially mostly called high pressure cleaners, are extensively commercial and used privately.
  • Such pressure washers are used for the Cleaning of motor vehicles, floor panels, cladding, even with appropriate Additional equipment for land blasting.
  • On the housing 1 of that shown in Fig. 1 High-pressure cleaning device for high-pressure water cleaning is a handle 5 attached, with the help of which the high-pressure cleaning device can be carried.
  • a 2 only indicated drive device 6 in the illustrated and preferred embodiment an electric drive motor, with a drive shaft 7. From the drive device 6 is driven by a high pressure pump 8 for cleaning water or a water / detergent mixture, subsequently always as cleaning water designated.
  • this high pressure pump 8 as an internal gear pump with internally toothed toothed ring 9 and externally toothed pinion 10 is.
  • a normal internal gear pump needs a sickle-shaped filler for your Function that is between the moving toothed ring 9 and the moving Pinion 10 is located.
  • a special type of internally toothed pumps are the so-called "gerotor pumps".
  • the illustrated embodiment shows the preferred teaching as High-pressure pump 8 gerotor pump with internally toothed gerotor 9 and externally toothed pinion 10, the pinion 10 one tooth less than that Has toothed ring 9.
  • Fig. 3 shows a view in the direction of the drive shaft 7 of toothed ring 9 and pinion 10, from which this fact arises.
  • gerotor pump implemented according to preferred teaching is also general Part of the description has been explained in detail with regard to their properties. To avoid repetition, reference may also be made to these explanations here will.
  • the invention For use in a water high-pressure cleaning device, the invention requires realized internal gear pump, in particular gear ring pump, equipment, in which the parts coming into contact with the cleaning water consist of a corrosion-resistant material, in particular a corrosion-resistant material Metal connection. Also ceramics, possibly also glass fiber reinforced Plastic can be used. This is also part of the general description have already been addressed.
  • the gerotor pump the gerotor should 9 and the pinion 10 from a good sliding properties in water Material with sufficient surface hardness.
  • Sintered materials in question, in particular sintered metal materials. According to preferred Teaching is provided that a sintered metal material with a plasma nitrided surface is used.
  • the exemplary embodiment shown shows a particularly preferred embodiment in FIG. 3 a gerotor pump, namely a so-called gerotor pump with from the drive shaft 7 driven pinion 10 and rotating pinion entrained Toothed ring 9.
  • a gerotor pump namely a so-called gerotor pump with from the drive shaft 7 driven pinion 10 and rotating pinion entrained Toothed ring 9.
  • a slide bearing is rotatably mounted in the rotor housing 12.
  • Fig. 3 shows the eccentric 13 carrying the pinion 10 on the drive shaft 7 with a Eccentricity.
  • Fig. 4 shows an alternative, which is characterized in that the high pressure pump 8 is designed as an orbit pump driven by the drive shaft 7 Pinion 10, fixed ring gear 9 and a planetary movement of the Pinion 10 around the central axis of the toothed ring 9 allowing coupling between the drive shaft 7 and pinion 10.
  • the pinion 10 passes through the an arrow drawn in an anti-clockwise direction is indicated by a planet-like one Movement around the central axis of the toothed ring 9 on a circular path with the radius e of eccentricity.
  • Fig. 5 shows a further alternative, which is characterized in that the high pressure pump 8 is designed as an eccentric pump with an eccentric connection driven by the drive shaft 7, rotatably mounted on the eccentric connection Pinion 10 and fixed toothed ring 9.
  • the displacement volume of a tooth gap is obtained with this construction.
  • the additional construction effort is necessary, in particular because of the with circumferential control sleeve, but very considerably, so that this variant probably least questionable.
  • the embodiment shown and preferred in this respect is also distinguished characterized in that here the actual pump area of the high pressure pump 8 is stacked is composed of several plate-like functional parts 20, 12, 21, the functional parts 20, 12, 21 with each other and with the rest of the housing are tension-proof clamped, represented by the correspondingly long fastening screws 19.
  • the drive device 6 opposite side of the pinion 10 and toothed ring 9 a connecting plate 20th (Functional part) in which the suction port 14 and the pressure port 15 are located.
  • suction port 14 and the pressure port 15 are located on the drive device 6 opposite side of the pinion 10 and toothed ring 9 a connecting plate 20th (Functional part) in which the suction port 14 and the pressure port 15 are located.
  • Fig. 2 shows well how these plate-like functional parts, namely the connection plate 20, the plate-like rotor housing 5 with the toothed ring 9 and pinion 10 and the bearing plate 21 with each other and with the long threaded screws 19 Rest of the housing are clamped pressure-tight.
  • the rest of the housing is special Formed assembly, which may be provided, but need not be provided.
  • Such a torsionally flexible coupling is known from the prior art. It transmits a positive torque and puncture-proof, but it compensates for axial displacements, shaft misalignment and angular displacement to a limited extent.
  • Such a coupling dampens vibrations and noise generation (e.g. torsionally flexible couplings from Mönninghoff, Brochure).
  • the torsionally flexible coupling 23 in a hollow Housing part 24 is arranged.
  • This housing part 24 represents the rest of the housing represents on which the plate-like functional parts 20, 12, 21 via the fastening screw 19 attached or braced.
  • Fig. 6 shows another example of the connection plate seen in the direction of the drive shaft 20 with the suction port 14 and the pressure port 15.
  • Fig. 7 shows accordingly the bearing plate 21.
  • Fig. 6 shows that the connection plate 20 in addition to the suction port 14 and the pressure port 15 the typical crescent-shaped suction and pressure openings for a gerotor pump has, which represent the suction chamber on the one hand and the pressure chamber on the other.
  • the normally stressed components can, for example be made of a bronze material, while the in terms of Surface hardness of particularly high stressed rolling elements - toothed ring 9 and Pinion 10 - consist of a coated, in particular plasma nitrided sintered metal can.
EP98102583A 1997-06-24 1998-02-14 Dispositif de nettoyage à l'eau sous haute pression Withdrawn EP0887122A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997126794 DE19726794A1 (de) 1997-06-24 1997-06-24 Wasser-Hochdruckreinigungsgerät
DE19726794 1997-06-24

Publications (2)

Publication Number Publication Date
EP0887122A2 true EP0887122A2 (fr) 1998-12-30
EP0887122A3 EP0887122A3 (fr) 2000-01-12

Family

ID=7833502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102583A Withdrawn EP0887122A3 (fr) 1997-06-24 1998-02-14 Dispositif de nettoyage à l'eau sous haute pression

Country Status (2)

Country Link
EP (1) EP0887122A3 (fr)
DE (1) DE19726794A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1400660A1 (fr) * 2002-09-20 2004-03-24 Mitsubishi Materials Corporation Pignon et boítier réalisés par frittage en une pièce avec revêtement au nitrure ainsi que sa méthode de fabrication
EP1767662A2 (fr) * 2005-09-10 2007-03-28 Schaeffler KG Revêtement résistant à l'usure et procédé pour sa fabrication
WO2010057838A2 (fr) * 2008-11-21 2010-05-27 Thielert Aircraft Engines Gmbh Vertr. D. D. Insolvenzverwalter Dr. Bruno M. Kübler Pompe à carburant pour moteurs à combustion interne
US9404069B1 (en) 2015-06-12 2016-08-02 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel
US9731330B1 (en) 2015-06-12 2017-08-15 Crossford International, Llc Portable cooling tower cleaning system
US10030216B2 (en) 2015-06-12 2018-07-24 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858483A1 (de) 1998-12-18 2000-08-31 Mannesmann Rexroth Ag Hydraulische Verdrängermaschine, insbesondere Verdrängerpumpe
DE19948860A1 (de) 1999-10-08 2001-04-12 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
DE10006864B4 (de) * 2000-02-16 2006-02-09 Spraying Systems Deutschland Gmbh Reinigungsdüse
DE10224784A1 (de) * 2002-06-04 2003-12-18 Siemens Ag G-Rotorpumpe
DE102005021597A1 (de) * 2005-05-10 2006-11-16 Siemens Ag Kraftstoffpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040950A (en) * 1989-08-07 1991-08-20 Northland Aluminum Products, Inc. Power washing apparatus
US5219277A (en) * 1990-05-29 1993-06-15 Walbro Corporation Electric-motor fuel pump
WO1998025029A1 (fr) * 1996-12-03 1998-06-11 Danfoss A/S Unite motopompe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333659A1 (de) * 1973-07-02 1975-01-16 Ludwig Mokesch Wasserpumpe
DE3312868C2 (de) * 1983-04-09 1986-03-20 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden Hydropumpe
DE4021500C3 (de) * 1990-07-05 1998-10-22 Mannesmann Vdo Ag Förderaggregat, insbesondere zum Fördern von Kraftstoff
DE4441259A1 (de) * 1994-11-19 1996-05-23 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040950A (en) * 1989-08-07 1991-08-20 Northland Aluminum Products, Inc. Power washing apparatus
US5219277A (en) * 1990-05-29 1993-06-15 Walbro Corporation Electric-motor fuel pump
WO1998025029A1 (fr) * 1996-12-03 1998-06-11 Danfoss A/S Unite motopompe

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1400660A1 (fr) * 2002-09-20 2004-03-24 Mitsubishi Materials Corporation Pignon et boítier réalisés par frittage en une pièce avec revêtement au nitrure ainsi que sa méthode de fabrication
US7179341B2 (en) 2002-09-20 2007-02-20 Mitsubishi Materials Corporation Integrated sprocket and housing and manufacturing method therefor
EP1767662A2 (fr) * 2005-09-10 2007-03-28 Schaeffler KG Revêtement résistant à l'usure et procédé pour sa fabrication
EP1767662A3 (fr) * 2005-09-10 2007-06-20 Schaeffler KG Revêtement résistant à l'usure et procédé pour sa fabrication
WO2010057838A2 (fr) * 2008-11-21 2010-05-27 Thielert Aircraft Engines Gmbh Vertr. D. D. Insolvenzverwalter Dr. Bruno M. Kübler Pompe à carburant pour moteurs à combustion interne
WO2010057838A3 (fr) * 2008-11-21 2010-09-10 Thielert Aircraft Engines Gmbh Vertr. D. D. Insolvenzverwalter Dr. Bruno M. Kübler Pompe à carburant pour moteurs à combustion interne
US9404069B1 (en) 2015-06-12 2016-08-02 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel
US9731330B1 (en) 2015-06-12 2017-08-15 Crossford International, Llc Portable cooling tower cleaning system
US10030216B2 (en) 2015-06-12 2018-07-24 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel

Also Published As

Publication number Publication date
EP0887122A3 (fr) 2000-01-12
DE19726794A1 (de) 1999-01-07

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