DK165129B - LIQUID PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES - Google Patents
LIQUID PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES Download PDFInfo
- Publication number
- DK165129B DK165129B DK487788A DK487788A DK165129B DK 165129 B DK165129 B DK 165129B DK 487788 A DK487788 A DK 487788A DK 487788 A DK487788 A DK 487788A DK 165129 B DK165129 B DK 165129B
- Authority
- DK
- Denmark
- Prior art keywords
- inlet
- outlet
- cylinder block
- pump
- head
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
iin
DK 165129BDK 165129B
Opfindelsen angår en aksialstempelpumpe af den i krav 1's indledning angivne art.The invention relates to an axial piston pump of the kind set forth in the preamble of claim 1.
I tidligere foreslåede pumper af denne art er både 5 indløbsdelen og udløbsdelen udformet som særskilte enheder, der er forbundet mekanisk og fluidummæssigt med pumpens topstykke, som igen er forbundet mekanisk og fluidummæssigt med pumpens cylinderblok. Denne kendte udformning medfører, at det er nødvendigt at bearbejde tre 10 par indbyrdes samvirkende overflader på pumpens forskellige dele, nemlig - for det første de indbyrdes samvirkende overflader på cylinderblokken og topstykket, - for det andet de indbyrdes samvirkende overflader på 15 indløbsdelen og topstykket, og - for det tredje de indbyrdes samvirkende overflader på udløbsdelen og topstykket.In previously proposed pumps of this kind, both the inlet portion and the outlet portion are formed as separate units which are mechanically and fluidly connected to the pump head, which in turn are mechanically and fluidly connected to the cylinder block of the pump. This known design means that it is necessary to work three 10 pairs of interacting surfaces on the various parts of the pump, namely - firstly the interacting surfaces of the cylinder block and the cylinder head - secondly the interacting surfaces of the inlet section and the cylinder head, and - thirdly, the mutually interacting surfaces of the outlet portion and the cylinder head.
Det er opfindelsens formål at anvise udformningen af en pumpe af den indledningsvis nævnte art, hvis fremstilling 20 er mindre krævende end fremstillingen af de ovenfor omtalte, tidligere foreslåede pumper, og dette formål opnås ved en pumpe, der ifølge opfindelsen er ejendommelig ved den i krav l's kendetegnende del angivne udformning.It is the object of the invention to provide the design of a pump of the kind mentioned above, the preparation of which is less demanding than the manufacture of the above-mentioned previously proposed pumps, and this object is achieved by a pump according to the invention according to the invention. 1's characteristic part.
Herved opnås, at antallet af parvist samvirkende over-25 flader, der skal maskinbearbejdes, reduceres fra tre til to, eventuelt kun ét par, hvad der selvsagt medfører en tilsvarende forenkling og dermed billiggørelse af fremstillingen. I tilgift opnås ved sammenbygningen af indløbs- og/eller udløbsdelen med cylinderblokken, både at 30 opbygningen kan gøres mere kompakt, og at varmeledningen mellem cylinderblokken og den transporterede væske forbedres betydeligt, således at den transporterede væske kan udnyttes som kølevæske for pumpens drivmekanisme.In this way, the number of pairs of cooperating surfaces to be machined is obtained reduced from three to two, possibly only one pair, which of course results in a corresponding simplification and thus cheaper production. In addition, by assembling the inlet and / or outlet portion with the cylinder block, both the construction can be made more compact and the heat conduction between the cylinder block and the conveyed fluid is greatly improved so that the transported liquid can be utilized as a coolant for the pump drive mechanism.
DK 165129BDK 165129B
22
Hensigtsmæssige udførelsesformer for pumpen ifølge opfindelsen, hvis virkninger er nærmere forklaret i den efterfølgende specielle del af nærværende beskrivelse, er 5 angivet i krav 2-6.Suitable embodiments of the pump according to the invention, the effects of which are explained in more detail in the following special part of this specification, are set out in claims 2-6.
Opfindelsen skal i det følgende forklares nærmere under henvisning til det på tegningen viste udførelseseksempel på en aksialstempelpumpe, hvori opfindelsens principper er udnyttet på indløbssiden.The invention will be explained in more detail below with reference to the embodiment shown in the drawing of an axial piston pump in which the principles of the invention are utilized on the inlet side.
10 Det på tegningen viste udførelseseksempel på en aksialstempelpumpe ifølge opfindelsen består på i princippet kendt måde af - en cylinderblok 1 med et antal, i det viste eksempel tre cylinderboringer 2, hvis akser er parallelle indbyrdes og 15 med pumpens drivaksel 3, - et topstykke 4, der på passende, ikke vist måde er fastgjort til cylinderblokken 1 og har et antal boringer 5, der flugter med cylinderboringerne 2, og hver er udformet ud for og i forbindelse med et pumpekammer 6 med en 20 indløbs-kontraventil 7 og en udløbs-kontraventil 8, - en indløbsdel 9, der omfatter et filter 10 og gennem en fælles indløbskanal 11 er forbundet med et antal, her tre opstrøms for indløbs-kontraventilerne 7 beliggende enkeltindløbskanaler 12, 25 - en udløbsdel 13, der bl.a. indeholder en omløbsventil 14, hvis udformning ikke er nærmere vist og gennem en fælles udløbskanal 15 står i forbindelse med nedstrøms-siden af udløbs-kontraventilerne 8, - et antal, i det viste eksempel tre dykstempler 16, der 30 er glidende lejret i cylinderboringerne 2 og påvirkes til frem- og tilbagegående bevægelse i indbyrdes forskudt fase af en fælles, ringformet tumleskive 17 og returfjedre 18, der holder dykstemplerne 16 i anlæg mod tumleskiven 17, og - en til pumpens drivaksel 3 fastgjort tumlerotor 19, mod 35 hvilken den ikke eller kun langsomt roterende tumleskive 17 er lejret ved hjælp af et aksialleje 20.The exemplary embodiment of an axial piston pump according to the invention shown in the drawing consists in principle known in the art - a cylinder block 1 having a number, in the example shown, three cylinder bores 2, the axes of which are parallel to one another and 15 with the drive shaft 3, - a cylinder head 4 which is suitably not shown attached to the cylinder block 1 and has a plurality of bores 5 which align with the cylinder bores 2 and each is formed adjacent to and in conjunction with a pump chamber 6 having a 20 inlet check valve 7 and an outlet valve. check valve 8, - an inlet portion 9 comprising a filter 10 and through a common inlet duct 11 is connected to a plurality, here three upstream of the inlet check valves 7 located single inlet ducts 12, 25 includes a bypass valve 14, the configuration of which is not shown in more detail and through a common outlet channel 15 communicates with the downstream side of the outlet check valves 8, - a number, in the example shown, three dive pistons 16 slidably mounted in the cylinder bores 2 and is actuated for reciprocating movement in mutually displaced phase by a common annular tumbler 17 and return springs 18 holding the plunger pistons 16 abutting the tumbler disk 17, and - a tumbler rotor 19 attached to the pump shaft 3 against which it does not or only slowly rotating tumbler disc 17 is mounted by an axial bearing 20.
DK 165129 BDK 165129 B
3 I øvrigt indeholder den viste pumpe et antal pakninger m.v., der er væsentlige for pumpens korrekte funktion, men som ikke behøver at omtales, for at opfindelsen skal kunne 5 forstås.3 Furthermore, the pump shown contains a number of gaskets etc. which are essential for the proper functioning of the pump, but which need not be mentioned in order for the invention to be understood.
I tidligere foreslåede pumper af denne art er den til indløbsdelen 9 svarende indløbsdel udformet som en særskilt del og forbundet mekanisk og fluidummæssigt med topstykket på lignende måde som udløbsdelen 13 i det viste 10 eksempel er forbundet med topstykket 4. Til forskel herfra er i det viste udførelseseksempel indløbsdelen 9 støbt i ét stykke med cylinderblokken 1 og er sammen med denne forbundet mekanisk og fluidummæssigt med topstykket 4.In previously proposed pumps of this kind, the inlet part corresponding to the inlet part 9 is formed as a separate part and is connected mechanically and fluidly to the head in a manner similar to the outlet part 13 in the example 10 shown connected to the head piece 4. In exemplary embodiment, the inlet member 9 is integrally molded with the cylinder block 1 and is associated with it mechanically and fluidly with the cylinder head 4.
Ved den viste sammenbygning af indløbsdelen 9 med 15 cylinderblokken 1 opnås en forenkling af fremstillingen, eftersom maskinbearbejdningen af de indbyrdes samvirkende overflader på indløbsdelen 9 og topstykket 4 kan ske samtidigt med maskinbearbejdningen af de indbyrdes samvirkende overflader på cylinderblokken 1 og topstykket 20 4. Det foretrækkes som vist at udforme disse indbyrdes samvirkende overflader som plane flader på henholdsvis det af cylinderblokken 1 og indløbsdelen 9 bestående aggregat og på topstykket 4, i det viste eksempel med undtagelse af fordybninger 21 i cylinderblokken 1 og fordybninger 22 i 25 topstykket 4, hvilke fordybninger dels tjener til at reducere de pågældende deles vægt, dels til dannelse af forstærknings- og/eller køleribber 23 henholdsvis 24.The shown assembly of the inlet member 9 with the cylinder block 1 achieves a simplification of manufacture, since the machining of the interacting surfaces of the inlet member 9 and the head piece 4 can take place simultaneously with the machining of the interacting surfaces of the cylinder block 1 and the head piece 20 4. It is preferred. as shown to form these mutually interacting surfaces as planar surfaces on the assembly of cylinder block 1 and inlet member 9, respectively, and on head 4, in the example shown, with the exception of recesses 21 in cylinder block 1 and recesses 22 in head 4, which recesses partly serves to reduce the weight of the parts concerned, in part to form reinforcing and / or cooling ribs 23 and 24, respectively.
I det viste eksempel er udløbsdelen 13 som antydet ovenfor forbundet med topstykket 4 på den tidligere kendte måde, 30 hvad der selvsagt nødvendiggør særskilt maskinbearbejdning af de samvirkende overflader på disse dele. Ifølge opfindelsen kan imidlertid også udløbsdelen være sammenbygget med cylinderblokken 1 på samme måde som indløbsdelen 9.In the example shown, the outlet part 13, as indicated above, is connected to the head piece 4 in the previously known manner, 30 which of course necessitates separate machining of the cooperating surfaces on these parts. However, according to the invention, the outlet part can also be joined to the cylinder block 1 in the same way as the inlet part 9.
DK 165129BDK 165129B
44
En yderligere fordel, der opnås ved at sammenbygge indløbsdelen 9 og/eller udløbsdelen 13 med cylinderblokken 1 består i, at den væske, som af pumpen transporteres fra 5 indløbsdelen 9 til udløbsdelen 13, kan udnyttes som kølevæske for den smøreolie, der cirkulerer i det rum 26, hvori tumleskiven 17 og returfjedrene 18 er anbragt, og således forhindre overophedning af denne olie. Som det vil kunne ses af tegningen, er der mellem den i indløbsdelen 9 10 udformede indløbskanal 25 og det nævnte drivmekanismerum 26 kun en forholdsvis tynd skillevæg 27, hvorigennem varmen fra rummet 26 ledes ud i den gennem indløbskanalen 25 strømmende væske - som materiale for cylinderblokken 1 og indløbsdelen 9 anvendes normalt aluminium, der som 15 bekendt har en ret høj varmeledningsevne.A further advantage obtained by assembling inlet member 9 and / or outlet member 13 with cylinder block 1 is that the liquid conveyed by the pump from the inlet member 9 to the outlet member 13 can be utilized as a coolant for the lubricating oil circulating in it. compartment 26, in which the tumbler disc 17 and the return springs 18 are disposed, thus preventing overheating of this oil. As can be seen from the drawing, between the inlet duct 25 formed in the inlet portion 9 10 and said drive mechanism space 26 is only a relatively thin partition 27 through which the heat from the space 26 is discharged into the liquid flowing through the inlet duct 25 - as material for the cylinder block. 1 and the inlet portion 9 is normally used aluminum, which, as is well known, has a fairly high thermal conductivity.
Indløbs-kontraventilerne 7 er fra den side, der vender mod cylinderblokken 1, indsat i topstykket 4, og fastholdes heri af den del af indløbsdelen 9 og cylinderblokken· 1, der omgiver den fælles indløbskanal 11. På tilsvarende 20 måde er udløbs-kontraventilerne 8 fra den side, der vender mod udløbsdelen 13, indsat i topstykket 4, og fastholdes heri af den del af udløbsdelen 13, der omgiver den fælles udløbskanal 15. Herved overflødiggøres eventuelle særlige fastgørelsesorganer for kontraventilerne, hvad der dels 25 medfører en forenkling af fremstillingen, dels letter en udskiftning af ventilerne, idet disse uden videre kan udskiftes, når de pågældende husdele er indbyrdes afmonteret.The inlet check valves 7 are inserted from the side facing the cylinder block 1 into the head piece 4 and are held therein by the part of the inlet part 9 and the cylinder block · 1 which surrounds the common inlet duct 11. Similarly 20 the outlet check valves 8 from the side facing the outlet part 13 inserted in the head piece 4, and is held therein by the part of the outlet part 13 surrounding the common outlet duct 15. This eliminates any special attachment means for the check valves, which partly causes a simplification of the manufacture. partly, it is easier to replace the valves, as they can be replaced without delay when the respective housing parts are disassembled.
Claims (6)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK487788A DK165129C (en) | 1988-09-02 | 1988-09-02 | SHIELD PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES |
DE8916257U DE8916257U1 (en) | 1988-09-02 | 1989-08-24 | Axial piston pump for liquids, especially for use with high-pressure cleaning devices |
DE19893928006 DE3928006C2 (en) | 1988-09-02 | 1989-08-24 | Axial piston pump for liquids, especially for use with high-pressure cleaning devices |
DE8916241U DE8916241U1 (en) | 1988-09-02 | 1989-08-24 | Axial piston pump for liquids, especially for use with high-pressure cleaning devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK487788A DK165129C (en) | 1988-09-02 | 1988-09-02 | SHIELD PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES |
DK487788 | 1988-09-02 |
Publications (4)
Publication Number | Publication Date |
---|---|
DK487788D0 DK487788D0 (en) | 1988-09-02 |
DK487788A DK487788A (en) | 1990-03-03 |
DK165129B true DK165129B (en) | 1992-10-12 |
DK165129C DK165129C (en) | 1993-02-22 |
Family
ID=8137465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK487788A DK165129C (en) | 1988-09-02 | 1988-09-02 | SHIELD PUMP PUMP PUMP, SPECIAL FOR USE IN HIGH PRESSURE CLEANING APPLIANCES |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3928006C2 (en) |
DK (1) | DK165129C (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338896C2 (en) * | 1993-11-15 | 1997-03-13 | Suttner Gmbh & Co Kg | Axial piston pump |
DE19607881C2 (en) * | 1996-03-01 | 2003-07-17 | Kaercher Gmbh & Co Kg Alfred | Pump for a high pressure cleaning device |
DE19801146C1 (en) * | 1998-01-14 | 1999-06-24 | Kaercher Gmbh & Co Alfred | Reciprocating piston pump for high pressure cleaning device |
CN100340766C (en) * | 2004-04-16 | 2007-10-03 | 胡松海 | Plunger pump of high pressure cleaner |
DE102011054442A1 (en) | 2011-10-12 | 2013-04-18 | Alfred Kärcher Gmbh & Co. Kg | Piston pump for a high-pressure cleaner |
CN102797657A (en) * | 2012-07-20 | 2012-11-28 | 浙江驰江工贸有限公司 | Crankshaft type high-pressure cleaning pump |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE847849C (en) * | 1948-10-26 | 1952-08-28 | Electraulic Presses Ltd | Piston pump |
US3033047A (en) * | 1959-06-27 | 1962-05-08 | Uchida Hiroshi | Variable discharge mechanism of an axial type plunger pump |
-
1988
- 1988-09-02 DK DK487788A patent/DK165129C/en not_active IP Right Cessation
-
1989
- 1989-08-24 DE DE19893928006 patent/DE3928006C2/en not_active Revoked
Also Published As
Publication number | Publication date |
---|---|
DK165129C (en) | 1993-02-22 |
DK487788D0 (en) | 1988-09-02 |
DE3928006C2 (en) | 1994-10-27 |
DE3928006A1 (en) | 1990-03-15 |
DK487788A (en) | 1990-03-03 |
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Legal Events
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PBP | Patent lapsed |