DK166766B1 - PORTABLE HIGH PRESSURE CLEANER - Google Patents
PORTABLE HIGH PRESSURE CLEANER Download PDFInfo
- Publication number
- DK166766B1 DK166766B1 DK072490A DK72490A DK166766B1 DK 166766 B1 DK166766 B1 DK 166766B1 DK 072490 A DK072490 A DK 072490A DK 72490 A DK72490 A DK 72490A DK 166766 B1 DK166766 B1 DK 166766B1
- Authority
- DK
- Denmark
- Prior art keywords
- pump piston
- pump
- valve
- piston
- suction
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 2
- 230000009699 differential effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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
- B08B3/028—Spray guns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/01—Spray pistols, discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0241—Combustion motor pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/027—Pump details
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Secondary Cells (AREA)
Description
i DK 166766 B1in DK 166766 B1
Den foreliggende opfindelse angår en bærbar højtryksrenser, navnlig til hobby-formål, og af den i indledningen til krav 1 angivne art.The present invention relates to a portable high-pressure cleaner, in particular for hobby purposes, and of the kind specified in the preamble of claim 1.
5 Til fritids- eller hobby-formål er det kendt at fremstille lette og kompakte højtryksrensere. Der er imidlertid normalt tale om neddimensionerede og udstyrsmæssigt forenklede udgaver af kendte højtryksrensere til professionel brug, dvs. at kendte højtryksrensere til hobby-formål normalt også er behæftet 10 med samme ulemper som højtryksrensere til professionel brug -herunder også en relativ høj pris. Desuden er kendte højtryksrensere af denne type relativt tunge enheder, fordi de enten omfatter en konventionel benzin-motor eller en el-motor. I sidstnævnte tilfælde kræves der udover tilslutning til god-15 kendt el-forsyning et særligt sikkerhedssystem, fordi der arbejdes med vandtilslutning.5 For recreational or hobby purposes, it is known to manufacture lightweight and compact high-pressure cleaners. However, these are usually low-dimensional and equipment-simplified versions of known high-pressure cleaners for professional use, ie. that well-known high-pressure cleaners for hobby purposes are also usually 10 with the same disadvantages as high-pressure cleaners for professional use - including a relatively high price. Furthermore, well-known high-pressure cleaners of this type are relatively heavy units because they comprise either a conventional gasoline engine or an electric motor. In the latter case, in addition to connecting to well-known electricity supply, a special security system is required, because work is done on water connection.
Opfindelsen har til formål at angive en forbedret højtryksrenser af den indledningsvis nævnte art, og ved hjælp af hvilken 20 der kan opnås en betydelig anvendelsesmæssig fleksibilitet samt forøget driftssikkerhed - og det tilmed til reducerede fremstillingsomkostninger.The invention has for its object to provide an improved high-pressure cleaner of the kind mentioned above, and by means of which considerable application flexibility and increased operational safety can be achieved - and even at reduced manufacturing costs.
Højtryksrenseren ifølge opfindelsen er ejendommelig ved, at 25 fortrængningsorganerne udgøres af et hult, cylindrisk pumpestempel, der via et krydshoved, plejIstænger og en krumtap er direkte drivforbundet med et parallelt med pumpestemplet placeret motorstempel, hvilket pumpestempel er permanent forbundet med lavtryksdelen via sugeåbninger til pumpestemplets hul-30 hed, og at ventilorganerne omfatter en ved en åben, forende af pumpestemplet placeret sugeventil, hvoraf et ventillegeme er forbundet med pumpestemplet på således løst forskydelig måde, at ventillegemet alene ved enertipåvirkning kan afspærre forenden af pumpestemplet, når dette bevæges fremad i retning mod 35 pumpekammeret og trykventilen, og åbne forenden af pumpestemplet, når dette bevæges i retning mod lavtryksdelen. Herved kan DK 166766 B1 2 opnås en stærkt forbedret højtryksrenser, der som følge af sin enkle og kompakte opbygning er særlig velegnet som et håndbåret renseapparat, og som til trods for sin beskedne størrelse har en meget betydelig rensekapacitet. Hensigtsmæssigt er 5 højtryksrenseren ifølge opfindelsen udformet således, at et ventillegeme af sugeventilen er forbundet med pumpestemplet på således løst forskydelig måde, at ventillegemet ved enerti-påvirkning føres bort fra den åbne forende, når pumpestemplet bevæges hurtigt mod lavtryksdelen, og føres mod den åbne ende, 10 når pumpestemplet bevæges hurtigt i den modsatte retning. Ved hjælp af konstruktive enkle foranstaltninger opnås herved en med det hule pumpestemplet sammenbygget sugeventil, der uden ventilfjeder er i stand til at arbejde med en relativ høj lukke/åbne-frekvens ( 50 - 160 åbne/lukkebevægelser pr. sek.).The high-pressure cleaner according to the invention is characterized in that the displacement means is a hollow cylindrical pump piston which is connected directly to a pump piston located parallel to the pump piston via a cross head, nursing rods and a crank, which is permanently connected to the low pressure part via suction ports. -30, and that the valve means comprise a suction valve located at an open front end of the pump piston, a valve body of which is connected to the pump piston in such a loosely displaceable manner that the valve body can only by the end-actuating action block the front end of the pump piston as it moves forward towards 35, and open the front end of the pump piston as it moves in the direction of the low pressure portion. In this way, DK 166766 B1 2 can be obtained a greatly improved high-pressure cleaner, which due to its simple and compact structure is particularly suitable as a hand-carried purifier and which, despite its modest size, has a very significant cleaning capacity. Conveniently, the high pressure cleaner according to the invention is designed such that a valve body of the suction valve is connected to the pump piston in such a loosely displaceable manner that the valve body is moved away from the open end when the pump piston moves rapidly towards the low pressure part and is moved towards the open end. , 10 when the pump piston moves rapidly in the opposite direction. By means of constructive simple measures, a suction valve built with the hollow pump piston is obtained, which without valve spring is able to work with a relatively high closing / opening frequency (50 - 160 open / closing movements per second).
1515
Med fordel kan pumpestemplet med den åbne forende være udformet som et tyndvægget rør, der fortrinsvis er fremstillet af rustfri stål. Dvs. at selve pumpestemplet er let og robust.Advantageously, the pump piston with the open end can be formed as a thin-walled tube, preferably made of stainless steel. Ie that the pump piston itself is light and sturdy.
20 Med henblik på at opnå en enkel og robust konstruktion er højtryksrenseren ifølge opfindelsen udformet således, at pumpestemplet modsat den åbne forende har en koncentrisk forbindelsesdel med mindre diameter, hvilken forbindelsesdel er udformet med en central, gennemgående boring, der er udformet 25 med indvendigt gevind, og som tjener til befæstigelse dels af pumpestemplet til et krydshoved og dels af en centralt gennem pumpestemplet forløbende styrebolt, hvorpå nævnte ventillegeme for sugeventilen er lejret.In order to achieve a simple and robust construction, the high-pressure cleaner according to the invention is designed so that the pump piston opposite the open end has a smaller diameter concentric connecting part, which is formed with a central, through-bore formed with an internal thread. and which serves to secure part of the pump piston to a crosshead and partly of a centrally extending guide bolt through the pump piston, on which said valve body for the suction valve is mounted.
30 Hensigtsmæssigt er højtryksrenseren ifølge opfindelsen udformet således, at pumpestemplet ved en fortrinsvis skrå-cylindrisk overgangsdel til forbindelsesdelen er udformet med et antal sugekanaler, hvis akser forløber bagud i en spids vinkel i forhold til pumpestemplets centerakse. Herved opnås på enkel 35 måde en ekstra let tilførsel af vand fra lavtryksdelen ind i DK 166766 B1 3 det hule pumpestempel - såvel under den fremadrettede pumpebevægelse som under den bagudrettede sugebevægelse af pumpestemplet .Conveniently, the high pressure cleaner according to the invention is designed such that the pump piston is formed at a preferably inclined cylindrical transition part to the connecting part with a plurality of suction channels whose axes extend rearwardly at an acute angle to the center axis of the pump piston. In this way, an extra easy supply of water from the low-pressure part into the hollow pump piston is achieved in a simple manner - both during the forward pumping movement and during the rearward suctioning movement of the pump piston.
5 Med henblik på at opnå en større rensekapacitet og at udnytte en art differential virkning i lavtryksdelen eller på pumpestemplets sugeside er højtryksrenseren ifølge opfindelsen udformet således, at en bageste del af det hule pumpestempel, nævnte skrå-cylindriske overgangsdel og forbindelsesdelen af 10 pumpestemplet forløber gennem lavtryksdelen i form af et sugekammer. Ved enkle foranstaltninger opnås herved den nævnte differential virkning på lavtrykssiden, således at tilførsel af vand ind i det hule pumpestempel fra sugekammeret på optimal måde finder sted såvel under pumpeslaget som under suge-15 slaget.In order to achieve a greater cleaning capacity and to utilize some kind of differential effect in the low-pressure part or on the suction side of the pump piston, the high-pressure cleaner according to the invention is designed such that a rear part of the hollow pump piston, said inclined cylindrical transition part and the connecting part of the pump piston extend through the low pressure part in the form of a suction chamber. By simple measures, the said differential effect is hereby achieved on the low-pressure side, so that the supply of water into the hollow pump piston from the suction chamber takes place in an optimal manner both during the pump stroke and during the suction stroke.
Opfindelsen forklares idet følgende nærmere i forbindelse med tegningen, på hvilken:- 20 Fig. 1 er et billede - delvis i snit - af en udførelsesform for en højtryksrenser ifølge opfindelsen - set fra oven, fig. 2 et sidebillede - delvis i snit - af den i fig. 1 viste høj tryksrenser, 25 fig. 3 et delsnitbillede af pumpedelen jfr. fig. 1 og i forstørret udgave, fig. 4 et delsnitbillede af pumpedelen jfr. fig. 2 og i for-30 størret udgave, fig. 5 et sidebillede - delvis i snit af en foretrukken udførelsesform for en højtryksrenser ifølge opfindelsen, 35 fig. 6 et billede - delvis i snit - af den i fig. 5 viste højtryksrenser - set fra oven, DK 166766 B1 4 fig. 7 et endebillede - delvis i snit - set fra snitlinien VII-VII i fig. 5.The invention is explained in the following with reference to the drawing, in which: - FIG. 1 is a top view, partially in section, of an embodiment of a high pressure cleaner according to the invention; FIG. 2 shows a side view - partly in section - of the one shown in FIG. 1 shows a high pressure cleaner, FIG. 3 is a partial sectional view of the pump section, cf. FIG. 1 and in enlarged version, fig. 4 is a partial sectional view of the pump section, cf. FIG. 2 and in enlarged version, fig. 5 is a side view - partly in section, of a preferred embodiment of a high-pressure cleaner according to the invention; 6 shows a view - partly in section - of the one shown in FIG. 5 high pressure cleaner - viewed from above, FIG. 166766 B1 4 fig. 7 is an end view - partially in section - seen from section line VII-VII of FIG. 5th
fig. 8 et sidebillede - hovedsageligt i snit - af en udførel-5 sesform for en pumpedel til den i fig. 5-7 viste højtryksrenser ifølge opfindelsen, medens fig. 9 er et snitbillede af et pumpestempel til den i fig. 8 viste pumpedel til en højtryksrenser ifølge opfindelsen.FIG. 8 shows a side view - mainly in section - of an embodiment of a pump part for the one shown in FIG. 5-7 illustrate the high pressure cleaner according to the invention, while FIG. 9 is a sectional view of a pump piston for the one shown in FIG. 8 for a high pressure cleaner according to the invention.
1010
Den i fig. 1 og 2 viste højtryksrenser 2 omfatter en pumpedel 4, der desuden er vist i fig. 3 og delvis i fig. 4, en krup-tapmekanisme 6 og en drivmotor i form af en benzinmotor 8. Pumpedelen 4 omfatter en lavtryksside eller -del 10 og en høj-15 tryksside eller -del 12 og et derimellem placeret hult, rørformet pumpestempel 14, der via et krydshoved 16, piej lstaenger 18 sam kruptapmekanismen 6 er direkte drivforbundet med et motorstempel 20 af benzinmotoren 8. Pumpedelen 4 omfatter desuden en suge ventil 22, et pumpekammer 24, en trykventil 26 og 20 en afgangsstuds 28 for tillutning af et strålerør.The FIG. 1 and 2, the high pressure cleaner 2 comprises a pump part 4, which is further shown in FIG. 3 and partly in FIG. 4, a creep tap mechanism 6 and a propulsion engine in the form of a gasoline engine 8. The pump portion 4 comprises a low pressure side or part 10 and a high pressure side or part 12 and a hollow tubular pump piston 14 located therebetween, which via a crosshead 16, piston rods 18, the collapse tapping mechanism 6 is directly driven by a motor piston 20 of the gasoline engine 8. In addition, the pump part 4 comprises a suction valve 22, a pump chamber 24, a pressure valve 26 and 20 and an outlet nozzle 28 for connecting a jet pipe.
Pumpestemplet 14 er modsat sugeventilen 22 forbundet med en cylindrisk forbindelsesdel 30, der modsat pumpestemplet 14 er forbundet med krydshovedet 16. En bageste del af pumpestemplet 25 14 og forbindelsesdelen 30 forløber på lavtrykssiden 10 gennem et sugekammer 32, hvortil vand ved vandværkstryk (2-8 bar) tilføres gennem en kugleventil 34, der kan åbnes ved hjælp af en aktiveringsstang 36, der via en svingarm 38 er forbundet med en hastighedsregulator 40 (speeder) for benzinmotoren 8. 30 Når denne f.eks. går i tomgang (svarende til ca. 3.000 o/min) er kugleventilen 34 lukket, således at der ikke tilføres vand til pumpedelen 4, der - i det mindste kortvarigt - skal kunne tåle at arbejde uden vandtilførsel.The pump piston 14 is opposite the suction valve 22 connected to a cylindrical connecting part 30, which is opposite to the pump piston 14 connected to the cross head 16. A rear part of the pump piston 25 14 and the connecting part 30 extend on the low pressure side 10 through a suction chamber 32, to which water at water pressure (2-8 bar) is supplied through a ball valve 34 which can be opened by means of an actuating rod 36 which is connected via a swing arm 38 to a speed regulator 40 (accelerator) for the gasoline engine 8. 30 idling (corresponding to about 3,000 rpm), the ball valve 34 is closed so that no water is supplied to the pump part 4, which - at least briefly - must be able to withstand operation without water supply.
35 Sugeventilen 22 omfatter et ventillegeme 42, der ved den åbne forende af pumpestemplet 14 er løst, forskydeligt lejret i en 5 DK 166766 B1 ventilfatning 44, der er fastgjort til pumpestemplet 14, dvs. at ventilfatningen 44 bevæger sig frem og tilbage sammen med pumpestemplet 14. Ventillegemet 42 er styret i ventilfatningen 44 ved hjælp af en stilkdel 46, der vender fremad, og som på 5 sin vis sammen med ventillegemet 42 udgør den egentlige fortrængningsflade af pumpestemplet 14. Når pumpestemplet 14 inklusiv ventilfatningen 44 i driftssituationen bevæges hurtigt frem og tilbage vil ventillegemet 42 bl.a. som en følge af enertipåvirkning automatisk blive presset mod den åbne forende 10 af pumpestemplet 14, når dette - under pumpeslaget - bevæges fremad, og blive ført bort fra den åbne forende af pumpestemplet 14, når dette - under sugeslaget - bevæges tilbage. Under pumpeslaget vil modtrykket i pumpekammeret 24 naturligvis også påvirke sugeventilen 22 til at lukke ved at presse ventillege-15 met 42 mod den åbne forende af pumpestemplet 14.The suction valve 22 comprises a valve body 42 which is loosened at the open end of the pump piston 14, slidably mounted in a valve fitting 44 attached to the pump piston 14, i. E. that the valve socket 44 moves back and forth together with the pump piston 14. The valve body 42 is guided in the valve socket 44 by a forward-facing stem part 46, which in its manner together with the valve body 42 constitutes the actual displacement surface of the pump piston 14. When the pump piston 14 including the valve socket 44 in the operating situation is moved rapidly back and forth. as a result of an energetic influence, it is automatically pressed against the open front end 10 of the pump piston 14 as it moves forwardly during the pump stroke and is moved away from the open front end of the pump piston 14 when it moves backwardly during the suction stroke. Of course, during the pump stroke, the back pressure in the pump chamber 24 will also cause the suction valve 22 to close by pressing the valve body 42 against the open end of the pump piston 14.
Pumpestemplet 14 arbejder i en pumpecylinder 48, der mod pumpedelens lavtryksside 10 er aflukket ved hjælp af en pakdåse 50, hvorigennem pumpestemplet 14 er ligeledes er ført. Modsat 20 pakdåsen 50 er pumpekammeret 24 placeret i form af et ringformet legeme, der i lighed med de øvrige dele af pumpedelen 4 er fastgjort i en omsluttende formstofkappe 52. Denne kan være to-delt eller være udformet ved omstøbning af pumpedelens respektive dele, idet formstofkappen 52 udgør et forreste hånd-25 tag for højtryksrenseren 2.The pump piston 14 operates in a pump cylinder 48, which is closed against the low pressure side 10 of the pump part by means of a packing box 50, through which the pump piston 14 is also passed. Opposite to the 20 sealing box 50, the pump chamber 24 is located in the form of an annular body, which, like the other parts of the pump part 4, is fixed in an enclosing plastic sheath 52. This can be bifurcated or formed by re-molding the respective parts of the pump part, the plastic sheath 52 constitutes a front handle for the high pressure cleaner 2.
Modsat pumpestemplet 14 danner pumpekammeret 24 anlæg for trykventilen 26, idet et ventillegeme eller -tallerken 54 ved hjælp af en centertap 56 er forskydeligt lejret i et ventilhus 30 58, der omfatter et ringformet hulrum 60 rundt omkring en central styrebøsning 62 for centertappen 56. Det ringformede hulrum 60 udgør en holder for en trykfjeder 64, der sørger for anpresning af ventillegemet 54 mod forsidekanten af pumpekammeret 24.Opposite the pump piston 14, the pump chamber 24 forms a pressure for the pressure valve 26, a valve body or plate 54 being slidably mounted in a valve housing 30 58 by means of a center pin 56 comprising an annular cavity 60 around a central control sleeve 62 for the center pin 56. annular cavity 60 provides a holder for a compression spring 64 which provides for pressing of the valve body 54 against the front edge of the pump chamber 24.
Det rørformede pumpestemplet 14 er ved bagenden, dvs. ved overgangen til forbindelsesdelen 30 udformet med radiale suge- 35 DK 166766 B1 6 kanaler 65, der fra sugekammeret 32 er beregnet til tilførsel af vand fra lavtryksdelen 10 ind i det hule pumpestempel 14. Ud for sugekanalerne 65 har pumpestemplet 14 forstørret diameter i forhold til forbindelsesdelen 30, dvs. at pumpestemplet 5 14 og forbindelsesdelen 30 på lavtrykssiden 10 danner en art differentialstempel, der arbejder frem og tilbage i sugekammeret 32, og som bevirker, at der tilføres vand fra sugekammeret 32 til det hule pumpestempel 14 såvel under det fremadrettede pumpeslag som under det bagudrettede sugeslag af pumpestemplet 10 14.The tubular pump piston 14 is at the rear, i.e. at the junction of the connection part 30 formed with radial suction channels 65 designed from the suction chamber 32 for supplying water from the low pressure part 10 into the hollow pump piston 14. Out of the suction ducts 65 the pump piston 14 has an enlarged diameter relative to connecting member 30, i.e. the pump piston 5 14 and the connection part 30 on the low-pressure side 10 form a kind of differential piston working back and forth in the suction chamber 32, which causes water to be supplied from the suction chamber 32 to the hollow pump piston 14 both under the forward pump stroke and under the rear suction stroke. of the pump piston 10 14.
Ved den foretrukne udførelsesform for en højtryksrenser 66 vist i fig. 5 - 7 er der for de dele, der genfindes ved højtryksrenseren 2 jfr. fig. 1-4, benævnt med de samme henvis-15 ningstal. Derudover omfatter højtryksrenseren 66 en benzintank 68, der omslutter pumpedelen 4, en karburator 70, der styres ved hjælp af speederen 40, der er anbragt i et håndtag 72, der som antydet med pile 74 desuden anvendes som tilførselskanal for køleluft til motoren, et svinghjul 76 med tilhørende tæn-20 dingssystem 78.In the preferred embodiment of a high pressure cleaner 66 shown in FIG. 5 - 7 there are for the parts found at the high pressure cleaner 2 cf. FIG. 1-4, denoted by the same reference numerals. In addition, the high-pressure cleaner 66 comprises a gasoline tank 68 enclosing the pump portion 4, a carburetor 70 controlled by the accelerator 40 arranged in a handle 72, which, as indicated by arrows 74, is also used as a supply air cooling duct for the engine, a flywheel 76 with associated ignition system 78.
Pumpedelen 4 ved højtryksrenseren 66 er vist mere tydeligt i fig. 8, hvor det bl.a. kan ses, at pumpekammeret 24 er udformet i en ringformet del 80, der desuden omfatter en sikker-25 hedsventilmekanisme 82, idet den ringformede del 80 fremadtil er holdt på plads mod en kombineret fatnings- og ventilhusdel for trykventilen 26 ved hjælp af en tallerkenfjeder 84, således at delen 80 tillades at forskydes fremad i tilfælde af et for højt tryk bagved trykventilen 26, f.eks. hvis et tilslut-30 tet strålerør bliver tilstoppet, således at overtrykket kan afdrænes via en nedre sideåbning 86.The pump part 4 at the high pressure cleaner 66 is shown more clearly in FIG. 8, where It can be seen that the pump chamber 24 is formed in an annular portion 80 which further comprises a safety valve mechanism 82, the annular portion 80 being held in place forwardly against a combined socket and valve housing portion of the pressure valve 26 by means of a plate spring 84 so that the portion 80 is allowed to be moved forward in case of excessive pressure behind the pressure valve 26, e.g. if a connected jet pipe is clogged so that the overpressure can be drained through a lower side opening 86.
Sugeventilen 22 er ved højtryksrenseren 66 arrangeret anderledes end ved højtryksrenseren 2, hvor ventillegemet 22 er for-35 skydeligt lejret i et ventilhus 44. I stedel er et ventillege- DK 166766 B1 7 me 88 ved den åbne forende af det hule pumpestempel 14 forskydeligt lejret på en ventilstang 90, der forløber centralt gennem det hule pumpestempel 14, og som er fastgjort til en bærebøsning 92, der er fastgjort indvendigt i en central boring 94 5 af forbindelsesdelen 30. Ventillegemet 88 samvirker med en hoveddel 96 af ventilstangen 90 på en sådan måde, at ventillegemet 88 tillades at bevæges ganske lidt bort fra den åbne forende af pumpestemplet 14, når dette - under sugeslaget føres bagud osv. Højtryksrenseren 66 omfatter i lighed med højtryks-10 renseren 2 en vandtilførsel 98, der er delvis omsluttet af en lyddæmper 100.The suction valve 22 is arranged differently at the high pressure cleaner 66 than at the high pressure cleaner 2, where the valve body 22 is slidably mounted in a valve housing 44. Instead, a valve bearing is slidably mounted at the open end of the hollow pump piston 14. on a valve rod 90 which extends centrally through the hollow pump piston 14 and which is secured to a carrier sleeve 92 which is secured internally in a central bore 94 5 of the connecting member 30. The valve body 88 interacts with a body portion 96 of the valve rod 90 on such a in that the valve body 88 is allowed to move slightly away from the open end of the pump piston 14 when it is moved backwards - during the suction stroke, etc. The high pressure cleaner 66, like the high pressure cleaner 2, comprises a water supply 98 partially enclosed by a silencer. 100th
Claims (5)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK072490A DK166766B1 (en) | 1990-03-20 | 1990-03-20 | PORTABLE HIGH PRESSURE CLEANER |
| JP91506282A JPH05507986A (en) | 1990-03-20 | 1991-03-18 | portable high pressure cleaner |
| PCT/DK1991/000080 WO1991014517A1 (en) | 1990-03-20 | 1991-03-18 | A portable high-pressure cleaner |
| AU75403/91A AU634376B2 (en) | 1990-03-20 | 1991-03-18 | A portable high-pressure cleaner |
| EP91906469A EP0521054A1 (en) | 1990-03-20 | 1991-03-18 | A portable high-pressure cleaner |
| CA002078430A CA2078430A1 (en) | 1990-03-20 | 1991-03-18 | Portable high-pressure cleaner |
| FI924170A FI924170A0 (en) | 1990-03-20 | 1992-09-17 | HOUSEHOLD TRUCKS. |
| NO923645A NO923645D0 (en) | 1990-03-20 | 1992-09-18 | A POSSIBLE HEAT PRESSURE CLEANER |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK072490A DK166766B1 (en) | 1990-03-20 | 1990-03-20 | PORTABLE HIGH PRESSURE CLEANER |
| DK72490 | 1990-03-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK72490D0 DK72490D0 (en) | 1990-03-20 |
| DK72490A DK72490A (en) | 1991-12-05 |
| DK166766B1 true DK166766B1 (en) | 1993-07-12 |
Family
ID=8096811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK072490A DK166766B1 (en) | 1990-03-20 | 1990-03-20 | PORTABLE HIGH PRESSURE CLEANER |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0521054A1 (en) |
| JP (1) | JPH05507986A (en) |
| AU (1) | AU634376B2 (en) |
| CA (1) | CA2078430A1 (en) |
| DK (1) | DK166766B1 (en) |
| FI (1) | FI924170A0 (en) |
| WO (1) | WO1991014517A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK170523B1 (en) * | 1991-04-17 | 1995-10-16 | Skannerup Mona | Compressed air blower |
| DK20392A (en) * | 1992-02-17 | 1993-08-18 | K F Ind As | PORTABLE HIGH PRESSURE CLEANER |
| DE59500726D1 (en) * | 1994-02-05 | 1997-11-06 | Kaercher Gmbh & Co Alfred | High pressure cleaning device |
| WO2016097852A1 (en) * | 2014-12-19 | 2016-06-23 | Daniele Marino | Device for emitting a liquid |
| CN106989428A (en) * | 2017-05-31 | 2017-07-28 | 珠海格力电器股份有限公司 | Wind energy recycling system for realizing self-cleaning of range hood and range hood |
| CN109731816B (en) * | 2019-02-19 | 2024-05-14 | 王建设 | Portable hydrodynamic cleaner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612837A (en) * | 1946-05-21 | 1952-10-07 | American Eng Co Ltd | Pump |
| US3446156A (en) * | 1966-11-17 | 1969-05-27 | Cosmodyne Corp The | Differential pressure poppet valve |
| US4792096A (en) * | 1987-12-14 | 1988-12-20 | Gregory T Jack | Hose nozzle with high pressure pump |
-
1990
- 1990-03-20 DK DK072490A patent/DK166766B1/en not_active IP Right Cessation
-
1991
- 1991-03-18 JP JP91506282A patent/JPH05507986A/en active Pending
- 1991-03-18 WO PCT/DK1991/000080 patent/WO1991014517A1/en not_active Ceased
- 1991-03-18 AU AU75403/91A patent/AU634376B2/en not_active Ceased
- 1991-03-18 CA CA002078430A patent/CA2078430A1/en not_active Abandoned
- 1991-03-18 EP EP91906469A patent/EP0521054A1/en not_active Withdrawn
-
1992
- 1992-09-17 FI FI924170A patent/FI924170A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0521054A1 (en) | 1993-01-07 |
| DK72490A (en) | 1991-12-05 |
| DK72490D0 (en) | 1990-03-20 |
| FI924170A7 (en) | 1992-09-17 |
| JPH05507986A (en) | 1993-11-11 |
| AU634376B2 (en) | 1993-02-18 |
| AU7540391A (en) | 1991-10-21 |
| WO1991014517A1 (en) | 1991-10-03 |
| CA2078430A1 (en) | 1991-09-21 |
| FI924170A0 (en) | 1992-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |