EP1141550B1 - Hochdruckreinigungsgerät - Google Patents

Hochdruckreinigungsgerät Download PDF

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Publication number
EP1141550B1
EP1141550B1 EP99950746A EP99950746A EP1141550B1 EP 1141550 B1 EP1141550 B1 EP 1141550B1 EP 99950746 A EP99950746 A EP 99950746A EP 99950746 A EP99950746 A EP 99950746A EP 1141550 B1 EP1141550 B1 EP 1141550B1
Authority
EP
European Patent Office
Prior art keywords
pump
clamping
pressure cleaning
reciprocating pump
cleaning appliance
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.)
Expired - Lifetime
Application number
EP99950746A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1141550A1 (de
Inventor
Robert Nathan
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1141550A1 publication Critical patent/EP1141550A1/de
Application granted granted Critical
Publication of EP1141550B1 publication Critical patent/EP1141550B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—Housings
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • 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
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/06—Polyamides, e.g. NYLON

Definitions

  • the invention relates to a high-pressure cleaner with a Piston pump, on which a pump head is mounted, in the at least one in the longitudinal direction of the piston pump back and forth protrudes movable piston, the pump head a Suction port for supplying a cleaning fluid and a pressure port for discharging the cleaning liquid includes and receives a plurality of control valves and wherein the Pump head is made of plastic and by means of a Clamping element is clamped to the piston pump, wherein the Clamping element has at least one U-shaped clamping bracket with a voltage applied to the pump head base and with two aligned substantially in the longitudinal direction of the piston pump Thighs.
  • Piston pumps for example, in high-pressure cleaning devices can be used in US 5,215,443 A and DE 42 09 461 A described.
  • the piston pumps each have a pump head, in DE 42 09 461 A is proposed when using the pump for low pressures to use a plastic pump head.
  • a high-pressure cleaning device with the aforementioned Features is known from DE 195 48 498 C2. This is where proposed to manufacture the pump head from plastic, so that it is inexpensive to produce and a relatively low Has weight. To the during the operation of the High pressure cleaning device occurring high pressures and the associated considerable mechanical stress To be able to hold state, is in the cited patent proposed a clamping element, with the help of the pump head can be clamped with the piston pump.
  • the Clamping element is designed as a truss-like Hood formed with a variety of webs that are themselves extend obliquely to the longitudinal axis of the piston pump, and with a connecting pipe, in which the formed as a discharge nozzle Discharge pressure connection of the pump head.
  • the clamping element has a support flange which is connected to a Level of the pressure nozzle is applied and from which the Webs obliquely to the longitudinal axis of the piston pump in the direction of extend the piston pump.
  • the clamping element has under another U-shaped clamp on with a pump head adjacent base part and two essentially in the longitudinal direction of the piston pump aligned legs.
  • Object of the present invention is a generic Further develop high-pressure cleaning device such that It is easier to assemble and a reliable connection pump head and piston pump allows.
  • This object is in a high-pressure cleaning device of according to the invention solved in the beginning, that the free ends of the legs on a made of metal Contact surface of a piston guide of the piston pump abutment and releasably connectable to the piston pump.
  • the clamping element at least one U-shaped clamping bracket, but ensured must be that the free ends of the tension bracket on a metallic contact surface of the piston guide of the piston pump abutment and releasably connected to the piston pump, for example screwed.
  • the clamp ensures, that made of plastic pump head and high Can withstand pressure.
  • the U-shaped embraces configured clamping bracket the pump head and is located immediately on a contact surface made of metal.
  • the installation of the high-pressure cleaner can thereby be additionally simplified, that the piston guide the Piston pump has through holes made by fasteners for releasably connecting the tension bow with the piston pump are penetrated.
  • the piston pump preferably comprises a cup-shaped pump housing, on which the piston guide is placed, and the Clamp is preferably releasable with the pump housing connectable.
  • the legs of the tension bow can be based on the in the region of the piston pump facing away from the end face of the Pump head adjacent base laterally in the longitudinal direction the piston pump along the pump head to about extend at the height of the pump housing.
  • the free ends of the guide sleeves thus form a metallic Contact surface for the clamping bracket, and because the guide sleeves facing the pump head, the length of the Legs of the tension bracket are reduced, creating a special stable construction of the clamping element achieved becomes.
  • the connecting elements for releasably connecting the tension bow with the piston pump as Clamping screws are formed, which are the guide sleeves reach through and with a corresponding internal thread of the pump housing are engaged.
  • the clamping bracket can be screwed to the pump housing become.
  • the clamping screws reach through here the guide sleeves of the piston guide, that is through the Connection of the clamping bracket with the pump housing is at the same time a mechanical support of the piston guide achieved.
  • the clamping element two U-shaped clamps on, with a first clamp the pump head in its suction port adjacent the lower area surrounds, while the second clamping bracket the pump head in its upper side facing away from the suction port Encompassing area.
  • the two clamping brackets via a connecting part rigidly connected with each other, since thereby the Clamping element receives a particularly high mechanical stability.
  • the connecting element the pressure connection the pump head annularly surrounds, as a result the positioning of the clamping element during assembly of the high pressure cleaning device simplified. This is it only required, the clamping element with its connecting part put on the pressure connection.
  • the clamping element lies with the base parts of the two Clamp on the free end face of the pump head, and due to the connection of the clamping element with the
  • Piston pump is a clamping force on the base parts exercised the pump head.
  • the connecting part two laterally, transversely to the longitudinal direction of the piston pump protruding Has tabs which rest on the pump head. The contact surface the tensioning element on the pump head is thereby enlarged, this has a more even load on the pump head and thus increased mechanical stability Episode.
  • clamping element is formed in one piece is. As a result, not only the manufacturing costs be reduced, but it also results in a mechanical more stable construction.
  • the tensioning element is preferably made of metal, for example in the form of a sheet metal part, designed.
  • the clamping element as a die-cast, for example, is designed as a zinc or aluminum casting.
  • Fig. 1 is a total occupied by the reference numeral 10 High-pressure cleaning device shown with an electric motor 12, at its front side via a fan 13 and a Gear 14 a piston pump 16 is flanged.
  • This includes an approximately pot-shaped designed pump housing 17 with a cylindrical housing shell 18 and a Caseback 19, to which a collar 20 is attached, the surrounds the transmission 14 in the circumferential direction.
  • a swash plate 21 is positioned, at the plurality of pistons 23 rest, due to the Rotary movement of the swash plate 21 in the longitudinal direction of the piston pump 16 back and forth.
  • the piston pump 16 also includes a piston guide 25, which is placed on the cup-shaped pump housing 17 and a guide for the piston 23 is formed.
  • a pump head 27 On the piston guide 25 of the piston pump 16 is a pump head 27 attached. This includes one in the drawing only schematically illustrated pump chamber 29, in which the piston 23 dive.
  • the pump head 27 has a Suction connection 31 and designed as a discharge nozzle 33 Pressure connection on.
  • the suction connection is on Suction valve 35 with the pump chamber 29 in fluid communication, in turn via a pressure valve 37 with a pressure chamber 38th connected is.
  • the pressure chamber 38 is above a check valve 39 and an injector 40 with the discharge port 33 in Flow connection.
  • the high pressure cleaning device can a cleaning fluid, such as water over a suction port 41 opening into the suction port 31 the pump head 37 are supplied. From suction connection 31 the cleaning liquid flows in via the suction valve 35 the pump chamber 29 and is then under high pressure via the pressure valve 37 and the check valve 39 in the Pressure port 33 pumped.
  • a cleaning fluid such as water
  • the pump head 37 From suction connection 31 the cleaning liquid flows in via the suction valve 35 the pump chamber 29 and is then under high pressure via the pressure valve 37 and the check valve 39 in the Pressure port 33 pumped.
  • the injector 40 forms a constriction of the flow cross section the pressurized cleaning fluid, wherein at the location of the narrowest cross-section a transverse bore 42 connects between the injector 40 and a chemical port 44 into which a chemical line 46 dips with a widened fitting 48, while a nipple 50 from the chemical port 44 stands out.
  • the pump head 27 made of plastic, for example of a polyamide, manufactured and formed in two parts.
  • a first part of the Pump head forms a cylinder head 52, the pump room 29 and the suction valve 35 and the pressure valve 37th receives.
  • the second part of the pump head 27 is of a control housing 54 which forms the suction port 31 and the discharge nozzle 33 and the chemical connection 44th and the check valve 39 and the injector 40th and receives the chemical line 46.
  • the clamping element 56 is shown in perspective in Fig. 2. It comprises a substantially U-shaped first clamp 60 with two approximately in the longitudinal direction the piston pump 16 aligned legs 61, 62 and a curved base portion 63 and also a substantially U-shaped second clamping bracket 65th with thighs 66, 67 and with a base part 68.
  • the two Base parts 63 and 68 are via a rigid connecting part 70 connected to each other, which has a through hole 71 and parallel to the legs 66, 67 of the second Spannbügels 65 aligned side walls 72, 73, at the free end regions transverse to the longitudinal direction of the piston pump 16 aligned retaining tabs 74, 75 protrude.
  • the free ends of the legs 66, 67 and 71, 72 are respectively as transversely to the longitudinal direction of the piston pump 16 aligned Retaining rings 66 configured.
  • the clamping element 56 When installing the high pressure cleaning device 10 can be the clamping element 56 on the free end face of the Pusher head 27 put on that the discharge nozzle 33 the Through hole 71 passes through and the curved base part 63 of the first tensioning bow 60 in the region of the suction connection 31 abuts the pump head 27, while the base part 68 of the second tensioning bow 65 in the region of the chemical connection 44 comes to the pump head 27 to the plant.
  • the base part 68 of the second tensioning bow 65 Around to allow access to the chemical port 44, the base part 68 of the second tensioning bow 65 has a bore 78, from the connection nipple 50 of the chemical line 46 is taken.
  • the pump head 27 thus becomes both in its lower, the suction port 31 adjacent Area as well as in its upper, the suction port 31 facing away and the chemical port 44 adjacent area each surrounded by a clamping bracket. additionally the retaining tabs 74, 75 of the connecting part 70 come on the end face of the pump head 27 to the plant.
  • the pump head 27 is thus in the base parts 63 and 68 and the retaining tabs 74, 75 in the axial direction of the high-pressure cleaning device supported, and occurring in the pump head 27 Axial forces are absorbed by the clamping element 56.
  • clamping element 56 The attachment of the clamping element 56 to the piston pump 16th is shown in detail in Figs. 3, 4 and 5, wherein differently configured clamping elements 56 are used can come.
  • the piston pump 16 comprises a pump housing 17, on which the piston guide 25 is placed.
  • the piston guide 25 has a guide flange 78 on, which is made of metal and a contact surface for represents the clamping element 56.
  • the guide flange 78 includes through holes 80 which by clamping screws 82 are penetrated. With the help of Clamping screws 82, the clamping element 56 with the pump housing 17 are bolted.
  • FIG. 4 A second embodiment of the high-pressure cleaning device 10 is shown in FIG. 4. This is different from the above-described embodiment in that for the piston guide 25, a guide flange 83 with metallic trained guide sleeves 84 is used extending from the pump housing 17 along the cylinder head 52 extend. At the free end surfaces of the guide sleeves 84 is a clamping element 86 with its retaining rings 76, which differs from the above Clamping element 56 only differs in that the Legs 61, 62 and 66, 67 are shortened and only along of the control housing 54 of the pump head 27 extend. by virtue of the shortened configuration of the legs draws the clamping element 86 by a more compact design and consequently by a higher mechanical stability out.
  • clamping screws 88 which are the guide sleeves 84 pass through and with an internal thread 89 of the pump housing 17 are engaged.
  • the clamping screws 88 thus serve in addition to the attachment of the clamping element 86 also for holding the guide flange 83rd the piston guide 25th
  • FIG. 5 A third embodiment of a high-pressure cleaning device is shown in Fig. 5. This also has one Clamping element 86, as already described with reference to FIGS. 4 has been described.
  • a guide flange 91st provided, the through-holes 92 for penetration of fastening screws 93 as well as guide sleeves 94, which include an internal thread 95 and with Clamping screws 96 are engaged.
  • the attachment takes place of the clamping element 86 by means of the clamping screws 96 the guide sleeves 94 of the guide flange 91.
  • the attachment the guide flange 91 in turn takes place by means of separate mounting screws 93, in the circumferential direction of the guide flange 91 offset from the guide sleeves 94 are arranged.
  • the Clamping element 56 and 86 directly to a metallic trained contact surface in the form of the guide flange 78th or the guide flanges 83 and 91 comes to rest.
  • the detachable connection of the clamping element 56 or 86 takes place by means of clamping screws 82, 88, 93, wherein by the metallic Design of the respective contact surface, the clamping element 56 and 86 acted upon by a high torque can be and ensures that that is Clamping element during operation of the high-pressure cleaning device 10 does not relax.
  • the two-piece, made of plastic manufactured pump head 27 occurring axial forces thereby reliably absorbed by the clamping element 56 and 86, respectively and transferred to the pump housing 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Reciprocating Pumps (AREA)
  • Centrifugal Separators (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP99950746A 1998-12-22 1999-10-15 Hochdruckreinigungsgerät Expired - Lifetime EP1141550B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19859336 1998-12-22
DE19859336A DE19859336C1 (de) 1998-12-22 1998-12-22 Hochdruckreinigungsgerät
PCT/EP1999/007831 WO2000037802A1 (de) 1998-12-22 1999-10-15 Hochdruckreinigungsgerät

Publications (2)

Publication Number Publication Date
EP1141550A1 EP1141550A1 (de) 2001-10-10
EP1141550B1 true EP1141550B1 (de) 2004-10-13

Family

ID=7892168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99950746A Expired - Lifetime EP1141550B1 (de) 1998-12-22 1999-10-15 Hochdruckreinigungsgerät

Country Status (10)

Country Link
US (1) US6474958B2 (pt)
EP (1) EP1141550B1 (pt)
JP (1) JP3554280B2 (pt)
CN (1) CN1087815C (pt)
AT (1) ATE279651T1 (pt)
AU (1) AU749654C (pt)
BR (1) BR9916499A (pt)
CA (1) CA2355741C (pt)
DE (2) DE19859336C1 (pt)
WO (1) WO2000037802A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023131712A1 (de) * 2022-01-10 2023-07-13 Alfred Kärcher SE & Co. KG Motorpumpeneinheit, insbesondere für ein hochdruckreinigungsgerät

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20030032U1 (it) * 2003-12-19 2005-06-20 Annovi Reverberi Spa Pompa idraulica perfezionata
ITRE20040015U1 (it) * 2004-08-02 2004-11-02 Annovi Reverberi Spa Corpo per pompa a pistoni tuffanti
CN100357591C (zh) * 2005-03-28 2007-12-26 颜志江 高压清洗机泵体
DE102005050009B4 (de) * 2005-10-11 2007-07-05 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
DE102007003521B4 (de) * 2007-01-18 2011-06-09 Alfred Kärcher Gmbh & Co. Kg Kolbenpumpe für ein Hochdruckreinigungsgerät
DE102007020298A1 (de) * 2007-04-20 2008-10-23 Alfred Kärcher Gmbh & Co. Kg Kolbenpumpe für ein Hochdruckreinigungsgerät
DE102008009246A1 (de) * 2008-02-07 2009-08-13 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
US8202063B2 (en) * 2009-04-30 2012-06-19 Briggs & Stratton Corporation Base plate for power equipment configured for mounting an engine and a tool
DE102009049094A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049095A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049096A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102010048534A1 (de) * 2010-10-14 2012-04-19 Robert Bosch Gmbh Hydraulische Axialkolbenmaschine
EP2805055B1 (de) 2012-01-20 2016-05-25 Alfred Kärcher GmbH & Co. KG Kolbenpumpe für ein hochdruckreinigungsgerät
DE102012101357A1 (de) * 2012-02-20 2013-08-22 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
CN104948407B (zh) * 2015-06-24 2018-04-27 宁波富斯乐机械制造有限公司 可增流量高压柱塞泵
USD776720S1 (en) 2015-06-25 2017-01-17 Kärcher North America, Inc. Pump housing
CN109026667A (zh) * 2018-08-31 2018-12-18 无锡和宏精密制造有限公司 一种高压泵体及其生产夹具
IT201900001593A1 (it) * 2019-02-04 2020-08-04 Udor S P A Pompa a pistoni.
CN111359959A (zh) * 2020-03-19 2020-07-03 苏州贝米科技有限公司 高压清洗机及高压清洗系统

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US4394111A (en) * 1981-09-11 1983-07-19 Snyder General Corporation Top cover, motor, fan and fan shroud assembly for an air conditioning unit
DE3347307A1 (de) * 1983-12-28 1985-07-11 Speck-Kolbenpumpen-Fabrik Otto Speck Kg, 8192 Geretsried Plungerpumpe
DE9013630U1 (de) * 1990-09-28 1991-01-31 Speck-Kolbenpumpenfabrik Otto Speck GmbH & Co. KG, 8192 Geretsried Hochdruck-Flüssigkeitspumpe
DE4209461C2 (de) * 1992-03-24 1994-10-06 Elektra Beckum Ag Axialkolbenpumpe, insbesondere für Wasser-Hochdruckreiniger
DE19548498C2 (de) * 1995-12-22 1998-07-23 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
US5876190A (en) * 1996-01-03 1999-03-02 Buchi Labortechnik Ag Vacuum membrane pump and a head portion for a vacuum membrane pump
CN1066520C (zh) * 1996-06-06 2001-05-30 周海威 直轴柱塞式泥浆泵
DE29701555U1 (de) * 1997-01-30 1997-03-13 Alfred Kärcher GmbH & Co, 71364 Winnenden Hochdruckreinigungsgerät
US6092998A (en) * 1998-03-20 2000-07-25 Devilbiss Air Power Company Pump for a pressure washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023131712A1 (de) * 2022-01-10 2023-07-13 Alfred Kärcher SE & Co. KG Motorpumpeneinheit, insbesondere für ein hochdruckreinigungsgerät

Also Published As

Publication number Publication date
WO2000037802A1 (de) 2000-06-29
CA2355741C (en) 2006-01-31
US20020006340A1 (en) 2002-01-17
BR9916499A (pt) 2001-09-04
AU749654C (en) 2003-12-18
CN1331784A (zh) 2002-01-16
JP3554280B2 (ja) 2004-08-18
EP1141550A1 (de) 2001-10-10
ATE279651T1 (de) 2004-10-15
CN1087815C (zh) 2002-07-17
DE59910863D1 (de) 2004-11-18
CA2355741A1 (en) 2000-06-29
US6474958B2 (en) 2002-11-05
AU749654B2 (en) 2002-06-27
DE19859336C1 (de) 2000-06-29
AU6340499A (en) 2000-07-12
JP2002533610A (ja) 2002-10-08

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