CH297542A - Piston pump. - Google Patents
Piston pump.Info
- Publication number
- CH297542A CH297542A CH297542DA CH297542A CH 297542 A CH297542 A CH 297542A CH 297542D A CH297542D A CH 297542DA CH 297542 A CH297542 A CH 297542A
- Authority
- CH
- Switzerland
- Prior art keywords
- piston pump
- cylinder bores
- cylinder
- pump
- space
- 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
- F04B1/143—Cylinders
-
- 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
- F04B1/128—Driving means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
Kolbenpumpe. Gegenstand vorliegender Erfindung ist eine Kolbenpumpe mit mindestens einer als Zylinder dienenden Bohrulng im Pumpen körper, die mit dem den Pumpenkörper um gebenden und die zu fördernde Flüssigkeit enthaltenden Raum in Verbindung stellt. Bei spielsweise kann der Erfindungsgegenstand i als eine rriehrzylindrige Taumelscheiben pumpe ausgebildet werden. Von bekannten Kolbenpumpen der erwähnten Art unter- seheidet sieh diejenige gemäss vorliegender Erfindung dadurch, dass die Zylinderboh rung und der genannte Raum mittels eines ventillosen Einlasskanals miteinander in Ver bindung stehen.
In der beiliegenden Zeiehnung ist eine beispielsweise Ausführungsform des Erfin- dungsgegenstandes in einem Längsschnitt dargestellt.
Die dargestellte Taumelscheibenölpumpe ist in eine Ölwanne 1 eingetaucht, und ihr Antrieb erfolgt über Welle 2, Zahnräder 3, 4, Welle 5 und Taumelseheibe 6. Gegen diese letztere liegen die beiden Pumpenkolben 7 an, die sieh in den beiden Zylinderbohrungen 8 hin- und Herbewegen. Die Bewegung der Kol ben 7 erfolgt dabei entgegen der Wirkung von Federn 9, die bestrebt sind, die Kolben gegen die Taumelscheibe 6 anzudrücken. Der Pumpenkörper 10 ist mit einer Ringnut 11 versehen, welche mit beiden Zylinderbohrun gen 8 in Verbindung steht, und zwar annä hernd an der Stelle, an der das Kolbenende heim äussern Totpunkt liegt. Diese Ringnut bildet einen Einlasskanal, mittels welchen die Zylinderbohrungen 8 mit dem den Pumpen körper 10 umgebenden und die zu fördernde Flüssigkeit enthaltenden Raum 17 in Verbin dung stehen.
Die Zylinderbohrungen 8 sind druckseitig durch je ein federbelastetes Ku gelventil 13 abgeschlossen, und die Hülsen 14 münden in den Druckraum 15, aus welchem das unter Druck stehende Öl durch die Lei tung 16 abgeleitet wird.
Die beschriebene Ausführung der Pumpe hat den Vorteil, dass sie sehr einfach ist und auch dann sehr zuverlässig arbeitet, wenn bei spielsweise nur ein Teil des Pumpenkörpers 10 in die zu fördernde Flüssigkeit ein getaucht ist. Der Antrieb könnte anstatt mit tels einer Taumelscheibe 6 auch auf andere Art und Weise erfolgen.
Es könnten mehr als zwei Kolben oder auch nur ein einziger vorgesehen sein. Im Falle der Anordnung einer Mehrzahl von Kolben könnten dieselben auch anders, z. B. in einer Reihe nebeneinander angebracht. sein. Auch die Aiwbild'ilng des Einlasskanals kann auf verschiedene Weise erfolgen. Wesentlich ist. aber in allen Fällen, die unmittelbare, ventillose Verbindung der Zylinderbohrungen mit dem die mz fördernde Flüssigkeit. enthal- tenden Raum.
Piston pump. The subject of the present invention is a piston pump with at least one Bohrulng serving as a cylinder in the pump body, which connects to the space surrounding the pump body and containing the liquid to be pumped. For example, the subject invention i can be designed as a Rriehrzylindrige swash plate pump. From known piston pumps of the type mentioned, the one according to the present invention differs in that the cylinder bore and the space mentioned are connected to one another by means of a valveless inlet channel.
In the accompanying drawing, an example embodiment of the subject matter of the invention is shown in a longitudinal section.
The swash plate oil pump shown is immersed in an oil pan 1 and is driven by shaft 2, gears 3, 4, shaft 5 and swash plate 6. The two pump pistons 7 rest against the latter and move back and forth in the two cylinder bores 8 . The movement of the Kol ben 7 takes place against the action of springs 9, which strive to press the piston against the swash plate 6. The pump body 10 is provided with an annular groove 11, which is in communication with the two cylinder bores 8, and that approximately at the point at which the piston end is at home outer dead center. This annular groove forms an inlet channel by means of which the cylinder bores 8 are in communication with the space 17 surrounding the pump body 10 and containing the liquid to be pumped.
The cylinder bores 8 are closed on the pressure side by a spring-loaded Ku gel valve 13, and the sleeves 14 open into the pressure chamber 15, from which the pressurized oil through the device 16 is derived.
The described embodiment of the pump has the advantage that it is very simple and also works very reliably when, for example, only part of the pump body 10 is immersed in the liquid to be pumped. The drive could be done in a different way instead of by means of a swash plate 6.
More than two pistons or just a single one could be provided. In the case of the arrangement of a plurality of pistons, the same could also be different, e.g. B. mounted in a row next to each other. be. The intake channel can also be configured in various ways. Is essential. but in all cases, the direct, valveless connection of the cylinder bores with the fluid conveying the mz. contained space.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH297542T | 1951-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH297542A true CH297542A (en) | 1954-03-31 |
Family
ID=4489663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH297542D CH297542A (en) | 1951-12-28 | 1951-12-28 | Piston pump. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH297542A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1147848B (en) * | 1957-05-17 | 1963-04-25 | New York Air Brake Co | Piston-controlled inlet slots on swashplate axial piston pumps |
DE1267984B (en) * | 1963-11-13 | 1968-05-09 | Teves Gmbh Alfred | Bearing of the shaft of an axial piston pump with head swash plate |
US4044654A (en) * | 1974-03-27 | 1977-08-30 | D. B. A. | Hydraulic engine |
US4523898A (en) * | 1984-01-10 | 1985-06-18 | Diesel Equipment Limited | Hydraulic wobble pumps |
US4576554A (en) * | 1983-11-08 | 1986-03-18 | Hydromatik Gmbh | Swashplate axial piston pump |
WO2004022971A1 (en) * | 2002-08-16 | 2004-03-18 | Alfred Kärcher Gmbh & Co. Kg | Swash plate pump, especially for high pressure cleaning apparatuses |
-
1951
- 1951-12-28 CH CH297542D patent/CH297542A/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1147848B (en) * | 1957-05-17 | 1963-04-25 | New York Air Brake Co | Piston-controlled inlet slots on swashplate axial piston pumps |
DE1267984B (en) * | 1963-11-13 | 1968-05-09 | Teves Gmbh Alfred | Bearing of the shaft of an axial piston pump with head swash plate |
US4044654A (en) * | 1974-03-27 | 1977-08-30 | D. B. A. | Hydraulic engine |
US4576554A (en) * | 1983-11-08 | 1986-03-18 | Hydromatik Gmbh | Swashplate axial piston pump |
US4523898A (en) * | 1984-01-10 | 1985-06-18 | Diesel Equipment Limited | Hydraulic wobble pumps |
WO2004022971A1 (en) * | 2002-08-16 | 2004-03-18 | Alfred Kärcher Gmbh & Co. Kg | Swash plate pump, especially for high pressure cleaning apparatuses |
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