DE232964C - - Google Patents
Info
- Publication number
- DE232964C DE232964C DENDAT232964D DE232964DA DE232964C DE 232964 C DE232964 C DE 232964C DE NDAT232964 D DENDAT232964 D DE NDAT232964D DE 232964D A DE232964D A DE 232964DA DE 232964 C DE232964 C DE 232964C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- shoe
- way
- sealing
- housing wall
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 7
- 241000854350 Enicospilus group Species 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- JVl 232964 KLASSE 59 e. GRUPPE- JVl 232964 CLASS 59 e. GROUP
Zweck vorliegender Erfindung ist der, die drehbaren Dichtungsschuhe von Maschinen mit umlaufenden Kolben so niedrig wie irgend erreichbar zu halten und doch eine sichere Verbindung mit den Kolben herbeizuführen. Es sollen die der Gehäusewandung zunächst befindlichen Kanten der Kolben so nahe wie irgend möglich an die Gehäusewandung, auf der die Dichtungsschuhe gleiten, herankom-The purpose of the present invention is to use the rotatable sealing shoes of machines to keep the rotating piston as low as possible and yet provide a secure connection bring about with the flask. There should be those of the housing wall initially The edges of the pistons come as close as possible to the housing wall on which the sealing shoes slide.
men, damit die Gefahr des sogenannten Überschnappens der Kolben über die Dichtungsschuhe auf ein so geringes Maß gebracht wird, daß praktisch überhaupt von keiner solchen Gefahr mehr gesprochen werden kann. Hierbei ist der Umstand mit in Rücksicht zu ziehen, daß sehr wohl ein harter Fremdkörper seinen Weg in den Pumpenraum finden kann. Geschieht dies, so wird der Fremdkörper sofort durch einen der Kolben nach außen geworfen und er gelangt auf diese Weise vor den Dichtungsschuh, der nun in der Lage sein muß, diesen harten Körper aus dem Wege zu räumen, ohne daß bei dem großen Widerstand, der in dem engen Ende des Pumpenraumes auftritt, daraus ein Abdrücken des Dichtungsschuhes vom Kolben entstehen kann, in der Weise, daß der Kolben über den Schuh hinwegspringt oder, wie man sagt, überschnappt.men, so that the risk of the so-called snapping of the pistons over the sealing shoes is reduced to such a low level, that practically no such danger can be spoken of any more. Here the fact must be taken into account that it is a hard foreign body can find its way into the pump room. When this happens, the foreign body becomes instantly thrown outwards by one of the pistons and in this way it arrives in front of the sealing shoe, which is now able must be to get this hard body out of the way, without the great resistance that is in the narrow end of the Pump chamber occurs, resulting in a pressing of the sealing shoe from the piston can, in such a way that the piston jumps over the shoe or, as they say, crazy.
Bei der vorliegenden neuen Verbindung der Kolben mit den Dichtungsschuhen besteht das Verbindungsmittel in kreisbogenförmigen Schwalbenschwanzführungen, die von größerem Radius als der halben Kolbendicke sind, so daß die beiden Teile fest, aber drehbeweglich verbunden sind, schon ehe man diese Teile in die Pumpe einbringt bzw. sie in die Kolbentrommel einzieht. Es ist also ein achsiales Verschieben des Schuhes in dem Kolben nicht möglich, was einesteils bei der Montage vorteilhaft ist, andernteils aber bei der betriebsfertigen Pumpe den Nutzen hat, daß dem Schuh keine andere Bewegung gegen den Kolben möglich ist, als eben die Drehbewegung, die durch die Exzentrizität der Kolbentrommel und des Gehäuses bewirkt wird.In the present new connection, the piston with the sealing shoes exists the connecting means in circular arc-shaped dovetail guides, which are larger Radius than half the piston thickness, so that the two parts are fixed but rotatable are connected before these parts are brought into the pump or into the piston barrel moves in. It is therefore not possible to move the shoe axially in the piston, which is advantageous on the one hand during assembly is, but on the other hand has the benefit of the ready-to-use pump that the shoe has no other movement against the piston is possible than just the rotary movement caused by the eccentricity of the piston drum and the housing is effected.
Die neue Einrichtung ist in zwei beispielsweisen Ausführungsformen in der Zeichnung veranschaulicht.The new device is shown in two exemplary embodiments in the drawing illustrated.
In den Fig. 1 und 2 bezeichnet α einen Kolben, der bei a1 schwalbenschwanzförmig ausgeschnitten ist. Dementsprechend ist der Schuh b schwalbenschwanzförmig bei b1 ausgeschnitten, und die so gebildeten Schwalbenschwanzführungen haben den aus Fig. 1 ersichtlichen Kreisbogen, dessen Radius größer ist als die halbe Dicke des Kolbens a. Man sieht hier deutlich, daß die der Gehäusewandung c gegenüberliegenden Kanten des Kolbens α sehr dicht an die Gehäusewandung her- ankommen, und daß der in dem Pumpenraum herrschende einseitige Druck zum größten Teil auf den Kolben, also nur zum kleinsten Teil auf den Schuh wirkt. Ein Überschnap-In FIGS. 1 and 2, α denotes a piston which is cut out at a 1 in the shape of a dovetail. Accordingly, the shoe b is cut out in the shape of a dovetail at b 1 , and the dovetail guides formed in this way have the arc of a circle shown in FIG. 1, the radius of which is greater than half the thickness of the piston a. It can be clearly seen here that the edges of the piston α opposite the housing wall c come very close to the housing wall, and that the one-sided pressure prevailing in the pump chamber acts for the most part on the piston, i.e. only to a small extent on the shoe. A maddening
pen des Kolbens über den Schuh kann nicht mehr stattfinden, da beide Teile durch die
Schwalbenschwanzführungen verbunden sind.
Die vorstehend beschriebene Anordnung hindert nicht, daß man den Teil b nicht selbst
als Schuh, sondern nur als Verbindungsmittel zwischen einem verbreiterten Schuh d (Fig. 3)The piston can no longer be pened over the shoe, as both parts are connected by the dovetail guides.
The arrangement described above does not prevent part b from being used as a shoe itself, but only as a connecting means between a widened shoe d (Fig. 3)
• und dem Kolben benutzt.• and the piston used.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE232964C true DE232964C (en) |
Family
ID=492942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT232964D Active DE232964C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE232964C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6176247B1 (en) | 1997-10-17 | 2001-01-23 | Neles Field Controls Oy | Method and device for verifying the workability of a safety device |
-
0
- DE DENDAT232964D patent/DE232964C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6176247B1 (en) | 1997-10-17 | 2001-01-23 | Neles Field Controls Oy | Method and device for verifying the workability of a safety device |
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