DE430455C - Device to avoid bumps in pumps with a sickle-shaped working area and rotating pistons that can be moved in the piston drum - Google Patents
Device to avoid bumps in pumps with a sickle-shaped working area and rotating pistons that can be moved in the piston drumInfo
- Publication number
- DE430455C DE430455C DEA43187D DEA0043187D DE430455C DE 430455 C DE430455 C DE 430455C DE A43187 D DEA43187 D DE A43187D DE A0043187 D DEA0043187 D DE A0043187D DE 430455 C DE430455 C DE 430455C
- Authority
- DE
- Germany
- Prior art keywords
- pumps
- pistons
- sickle
- piston drum
- moved
- 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
Links
Classifications
-
- 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
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
Einrichtung zur Vermeidung von Stößen bei Pumpen mit sichelförmigem Arbeitsraum und in der Kolbentrommel verschiebbaren, umlaufenden Kolben. Die Erfindung betrifft eine Einrichtung bei Drehkolbenpumpen zum Pumpen unelastischer Mittel, durch welche erreicht wird, daß die bekannten Pumpen einen gleichmäßigen und ruhigen Gang erhalten, indem die Schläge oder Stöße in der Pumpe vermieden werden.Device to avoid shocks in pumps with sickle-shaped Working space and rotating piston that can be moved in the piston drum. The invention relates to a device in rotary lobe pumps for pumping inelastic agents, by which it is achieved that the known pumps have a steady and quiet Maintain gear by avoiding the blows or bumps in the pump.
Wenn eine Pumpe für ein unelastisches Mittel, z. B. Öl oder Wasser, arbeitet, füllt sich der Raum zwischen je zwei Kolben, wenn er sich vor der Einsaugöffnung der Pumpe befindet, nicht vollständig mit Flüssigkeit, da -der Ausfüllungsgrad nicht ioo Prozent ist. Wie groß der Ausfüllungsgrad ist, hängt von der Art der zu pumpenden Flüssigkeit ab.When a pump is used for an inelastic agent, e.g. B. oil or water, works, the space between two pistons fills when it is in front of the intake opening the pump is located, not completely with liquid, because the degree of filling is not ioo percent is. How large the degree of filling is depends on the type of pump to be pumped Liquid.
Wenn der hintere von zwei Kolben Je Kante der Einsaugöffnung verläßt, begrenzen die beiden Kolben einen Rauminhalt, der teils aus Flüssigkeit, teils aus stärk verdünnter Luft besteht. Wenn der vordere der beiden Kolben vor die Drucköffnung kommt, schlägt daher die in der Druckleitung vorhandene Flüssigkeit in den erwähnten Raum zwischen zwei Kolben zurück und bewirkt dadurch einen Stoß, der teils schädlich für die Pumpe ist, teils einen unangenehmen Lärm verursacht.When the rear of two pistons each edge leaves the intake opening, The two pistons limit a volume, which is partly made up of liquid and partly made up strongly diluted air. When the front of the two pistons is in front of the pressure port comes, therefore beats the liquid present in the pressure line in the mentioned Space between two pistons back and thereby causes a shock, which is partly damaging for the pump, sometimes it makes an unpleasant noise.
Nach der Erfindung wird diesem Mangel dadurch abgeholfen, daß der Rauminhalt zwischen je zwei Kolben während der Umdrehung der Kolbentrommel verkleinert wird, und zwar ganz oder annähernd im gleichen Verhältnis wie der Füllungsgrad der Pumpe. Nach der Erfindung wird mit anderen Worten dafür Sorge getragen, daß der luftverdünnende Raum zwischen den beiden Kolben während der Umdrehung der Trommel entfernt wird.According to the invention, this deficiency is remedied in that the Volume between two pistons is reduced during the rotation of the piston drum is, in whole or approximately in the same proportion as the degree of filling of the Pump. According to the invention, in other words, for this Taken care of that the air-thinning space between the two pistons during the rotation of the Drum is removed.
Es ist an sich bekannt, den Rauminhalt zwischen je zwei Kolben einer Ptunpe zum Pumpen unelastischer Stoffe während der Umdrehung der Kolbentrommel zu vermindern, jedoch ist es nicht bekannt, den Rauminhalt in einem Verhältnis, das ganz oder annähernd dem Füllungsgrad der Pumpe gleich ist, zu vermindern.It is known per se, the volume between two pistons one Ptunpe for pumping inelastic materials during the rotation of the piston drum diminish, however, it is not known to reduce the volume in a ratio that is completely or approximately the same as the filling level of the pump.
Es ist technisch möglich, eine solche Maßnahme mit genügender Genauigkeit für die in Betracht kommende Flüssigkeit zu treffen, da eine etwas zu starke Verminderung des Rauminhalts zwischen je zwei Kolben und die hieraus folgende Druckerhöhung zulässig ist, weil eine Pumpe nie ganz dicht ist.It is technically possible to take such a measure with sufficient accuracy for the liquid in question, as a somewhat excessive reduction the volume between each two pistons and the resulting pressure increase are permissible is because a pump is never completely leak-proof.
Auf der Zeichnung _ ist eine Pumpe nach der Erfindung in einer Ausführungsform im Querschnitt dargestellt.In the drawing _ is a pump according to the invention in one embodiment shown in cross section.
Die Pumpe besteht in an sich bekannter Weise aus einem zylindrischen Gehäuse i mit einer Saugöffnung z und einer Drucköffnung 3. In der Kolbentrommel q., die das Gehäuse i längs der Kante 5 berührt, ist eine Anzahl Kolben 6 angebracht, die in Schlitzen der Trommel gleiten und gegen die Innenseite des Gehäuses mittels Federn gehalten werden. Anstatt Federn können an den Kolben angebrachte, in Rillen in den Endböden des Gehäuses gleitende Zapfen oder andiere bekannte Steuerungen angewendet werden. Wenn die Trommel sich in der Pfeilrichtung dreht, wird die Flüssigkeit bei z eingesaugt und bei 3 hinausgedrückt.The pump consists of a cylindrical one in a manner known per se Housing i with a suction opening z and a pressure opening 3. In the piston drum q. that touches the housing i along the edge 5, a number of pistons 6 are attached, which slide in slots of the drum and against the inside of the housing means Springs are held. Instead of springs can be attached to the piston, in grooves pegs sliding in the end bottoms of the housing or other known controls be applied. When the drum rotates in the direction of the arrow, the liquid becomes sucked in at z and pushed out at 3.
Nach der Erfindung ist die PyÄnpe derart eingerichtet, daß das Verhältnis. in welchem der Rauminhalt zwischen je zwei Kolben während der Umdrehung der Trommel von der Saug- nach der Druckseite vermindert wird, ganz oder annähernd gleich dem Füllungsgrad der Pumpe ist.According to the invention, the PyÄnpe is set up in such a way that the ratio. in which the volume between two pistons during the rotation of the drum is reduced from the suction to the pressure side, completely or approximately equal to that The filling level of the pump is.
Bei, der gezeigten Ausführungsform ist dies dadurch erreicht, daß die Treibwelle der Kolbentrommel nach der Drucköffnung 3 hin derart verschoben ist, daß das genannte Verhältnis entsteht.In the embodiment shown, this is achieved in that the drive shaft of the piston drum is shifted towards the pressure opening 3 in such a way that that the said relationship arises.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA43187D DE430455C (en) | 1924-10-07 | 1924-10-07 | Device to avoid bumps in pumps with a sickle-shaped working area and rotating pistons that can be moved in the piston drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA43187D DE430455C (en) | 1924-10-07 | 1924-10-07 | Device to avoid bumps in pumps with a sickle-shaped working area and rotating pistons that can be moved in the piston drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE430455C true DE430455C (en) | 1926-06-17 |
Family
ID=6933515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA43187D Expired DE430455C (en) | 1924-10-07 | 1924-10-07 | Device to avoid bumps in pumps with a sickle-shaped working area and rotating pistons that can be moved in the piston drum |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE430455C (en) |
-
1924
- 1924-10-07 DE DEA43187D patent/DE430455C/en not_active Expired
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