DE568897C - Rotary piston compressor with sickle-shaped working space - Google Patents

Rotary piston compressor with sickle-shaped working space

Info

Publication number
DE568897C
DE568897C DEP64458D DEP0064458D DE568897C DE 568897 C DE568897 C DE 568897C DE P64458 D DEP64458 D DE P64458D DE P0064458 D DEP0064458 D DE P0064458D DE 568897 C DE568897 C DE 568897C
Authority
DE
Germany
Prior art keywords
pressure
sickle
rotary piston
working space
piston compressor
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
Application number
DEP64458D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STEPHAN PATKAY DR ING
Original Assignee
STEPHAN PATKAY DR ING
Publication date
Priority to DEP64458D priority Critical patent/DE568897C/en
Application granted granted Critical
Publication of DE568897C publication Critical patent/DE568897C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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)
  • Applications Or Details Of Rotary Compressors (AREA)

Description

Drehkolbenverdichter mit sichelförmigem Arbeitsraum Die Erfindung betrifft Drehkolbenverdichter mit sicheIförmigem Arbeitsraum und Schieberkolben in der Kolbentrommel. Bei diesen Verdichtern besteht insofern ein übelstand, als ein Anpassen des Endverdichtungsdruckes an den jeweils vorhandenen Gegendruck nicht erfolgt; vielmehr erzeugt der Drehkolbenverdichter einen Enddruck, dessen Größe von den Abmessungen der Maschine abhängig und hierdurch unveränderlich festgelegt ist. Ist nunmehr der Gegendruck am Austritt der Maschine kleiner als der Verdichtungsenddruck des austretenden Gases, so wird letzteres seinen Druck durch Rückexpansion dem Gegendruck anpassen: Um diesen Druckunterschied wurde also das Gas unnützerweise zu hoch verdichtet und nutzlose Arbeit aufgewendet.Rotary piston compressor with sickle-shaped working space The invention relates to rotary lobe compressors with a safety-shaped working chamber and slide piston in the piston drum. With these compressors there is a drawback in that an adaptation of the final compression pressure to the respective existing back pressure is not he follows; rather, the rotary lobe compressor generates a final pressure, its size depends on the dimensions of the machine and is therefore fixed is. The back pressure at the machine outlet is now less than the final compression pressure of the exiting gas, the pressure of the latter becomes the counterpressure by re-expansion adapt: The gas was uselessly compressed too high by this pressure difference and useless work expended.

Diesem Übelstand wurde9 verschiedentlich versucht, dadurch zu begegnen, daß im Gehäuse Öffnungen mit Ventilen angeordnet wurden, welche die Gehäusewand durchbrachen und die einzelnen Kammern verschiedener Verdichtungsgrade mit der Austrittsleitung verbanden. Stieg in den Kammern der Druck höher als der des in der Ausschubleitung sich befindenden Gases, so öffneten die Ventile im Augenblick des Vorbeigleitens der entsprechenden Kammer und führten den Druckausgleich zur Austrittsleitung herbei. Aus dem Gesagten folgt, daß der Ausgleich nicht stufenlos erfolgen konnte. Außerdem bedingt diese Lösung verwickelte und kostspielige Konstruktionen.Various attempts have been made to counteract this evil that openings with valves were arranged in the housing, which the housing wall broke through and the individual chambers of different degrees of compression with the outlet line connected. If the pressure in the chambers rose higher than that in the discharge line if there was gas, the valves opened at the moment of passing the corresponding chamber and brought about the pressure equalization to the outlet line. It follows from what has been said that the compensation could not be made continuously. aside from that this solution requires intricate and costly constructions.

Eine grundsätzlich andere und einfachere Lösung ergibt die im folgenden beschriebene Erfindung, bei der alle vorhin genannten, Nachteile vermieden werden.The following gives a fundamentally different and simpler solution described invention, in which all the aforementioned disadvantages are avoided.

Bei dem in Fig. i im Schnitt dargestellten Verdichter sind die in der Kolbentrommel a angeordneten Schieberkolben b1, b2, b3, b4 usw. mit Schlitzen cl, c2, c3, c4 USW- versehen, und, diese sind auf der Fläche der in der Drehrichtung darauffolgenden Kammer durch je ein Ventil dl, d2, d3, d4 usw. verschlossen. Steigt der Druck während des Verdichtungsvorganges in einer der Kammern, z. B. e2, höher als in der vorhergehenden, z. B. e3, so wird das Ventil d3 durch den Überdruck in der Kammer e2 geschlossen gehalten, so daß ein Rückströmen nicht erfolgen kann. Ist dagegen in der Ausschubleitung /der Druck geringer als in der letzten Verdichtungskammer, in der gezeichneten Stellung ei, so wird das Ventil d, geöffnet und durch den Schlitz cl Druckausgleich geschaffen. Ebenso wird daraufhin das Ventil d2 sich öffnen und der Überdruck der Kammere2 nach Kammer ei und nach der Ausschubleitung f hin ausgeglichen. Dieser Vorgang setzt sich nunmehr fort, bis diejenige Kammer erreicht ist, deren Druck gleich oder kleiner dem der Ausschubleitung ist. Da die Ventile auf den kleinsten Druckunterschied ansprechen, ist durch die beschriebene Erfindung folgerichtig eine stufenlose Selbsteinstellung des Verdichtungsenddruckes auf den jeweiligen Druck der Ausschubleitung gewährleistet.In the i shown in Fig. An average of compressors are arranged in the piston drum a spool b1, b2, b3, b4, etc. cl with slots, c2, provided c3, c4 USW-, and these are on the surface of the Direction of rotation the following chamber is closed by a valve dl, d2, d3, d4 , etc. If the pressure rises during the compression process in one of the chambers, e.g. B. e2, higher than in the previous one, e.g. B. e3, the valve d3 is kept closed by the overpressure in the chamber e2, so that a backflow cannot occur. If, on the other hand, the pressure in the discharge line / the pressure is lower than in the last compression chamber, in the position ei shown, then the valve d 1 is opened and pressure equalization is created through the slot cl. The valve d2 will then also open and the overpressure of the chamber 2 towards chamber ei and towards the discharge line f will be balanced out. This process now continues until that chamber is reached, the pressure of which is equal to or less than that of the discharge line. Since the valves respond to the smallest pressure difference, the described invention consequently ensures a stepless self-adjustment of the compression end pressure to the respective pressure of the discharge line.

Die gleiche Lösung kann auch durch Ausgleichkanäle g1, g2, gg, g4 usw. in Fig. 2, die durch die Kolbentrommel a geführt und mit entsprechenden Ventilen hl, h2, h3, h4 USW, versehen sind, bewerkstelligt werden. Dieee Kanäle verbinden je zwei aufeinanderfolgende Kammern und sind voneinander vollkommen getrennt.The same solution can also be achieved by compensating channels g1, g2, gg, g4, etc. in FIG. 2, which are passed through the piston drum a and are provided with corresponding valves hl, h2, h3, h4, USW. The channels each connect two consecutive chambers and are completely separated from each other.

Claims (2)

PATENTANSPRÜCHE: i. Drehkolbenverdichter mit sichelförmigem Arbeitsraum und Schieberkolben in der Kolbentrommel und selbsttätiger Enddruckanpassung an den Druck in der Ausschubleitung, dadurch gekennzeichnet, daß der Verdichtungsdruck dem jeweiligen Druck in der Aässchubleitung (f) stufenlos angepaßt wird, vorzugsweise dadurch, daß die Schieberkolben (b"252, b3, b4 usw.) als Ventilsitze ausgebildet werden, auf denen möglichst masselose Ventilkörper (dl, d2, d3, 44 usw.) angebracht sind. PATENT CLAIMS: i. Rotary piston compressor with sickle-shaped working space and slide piston in the piston drum and automatic final pressure adjustment to the pressure in the discharge line, characterized in that the compression pressure is continuously adapted to the respective pressure in the Aässchubleitung (f), preferably by the fact that the slide pistons (b "252, b3 , b4, etc.) are designed as valve seats, on which valve bodies (dl, d2, d3, 44, etc.) are attached with as little mass as possible. 2. Drebkolbenverdichter nach Anspruch i, dadurch gekennzeichnet, daß die Kolbentrommel (a) mit Ausgleichkanälen (g1, g2, g3, g4 usw.) mit eingebauten Ventilen versehen ist, die den Druckausgleich durch Verbindung der Kammern (e1, e2, e3, e4 USW.) untereinander herbeiführen.2. Rotary piston compressor according to claim i, characterized in that the piston drum (a) with compensating channels (g1, g2, g3, g4, etc.) is provided with built-in valves that balance the pressure by connecting the chambers (e1, e2, e3, e4 Etc.) among each other.
DEP64458D Rotary piston compressor with sickle-shaped working space Expired DE568897C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP64458D DE568897C (en) Rotary piston compressor with sickle-shaped working space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP64458D DE568897C (en) Rotary piston compressor with sickle-shaped working space

Publications (1)

Publication Number Publication Date
DE568897C true DE568897C (en) 1933-01-25

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661695A (en) * 1950-07-21 1953-12-08 Oilgear Co Reduction of noise and shock in power pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661695A (en) * 1950-07-21 1953-12-08 Oilgear Co Reduction of noise and shock in power pumps

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