DE677288C - Rotary lobe compressors - Google Patents

Rotary lobe compressors

Info

Publication number
DE677288C
DE677288C DEST55680D DEST055680D DE677288C DE 677288 C DE677288 C DE 677288C DE ST55680 D DEST55680 D DE ST55680D DE ST055680 D DEST055680 D DE ST055680D DE 677288 C DE677288 C DE 677288C
Authority
DE
Germany
Prior art keywords
rotary piston
sleeve
rotary lobe
rotary
lobe compressors
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
DEST55680D
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE677288C publication Critical patent/DE677288C/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
    • 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
    • F04C18/356Rotary-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 outer member
    • F04C18/3562Rotary-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 outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564Rotary-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 outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

Description

Drehkolbenverd'ichter Die Erfindung betrifft einen Drehkolbenverdichter nach Patent 669 o9 i, bei welchem der Drehkolben, -um den eine sich damit drehende Büchse gelegt ist, gegenüber der Stelle, wo die Büchse federnd die Gehäuseinnenwand berührt, eine Abflachung aufweist, so d2,ß dort zwischen dem Drehkolben und .dieser Dichtungsbüchse ein Hohlraum entsteht.Rotary piston compressor The invention relates to a rotary piston compressor according to patent 669 o9 i, in which the rotary piston, -um the one rotating with it Bushing is placed opposite the point where the bushing resiliently touches the inner wall of the housing touches, has a flat, so d2, ß there between the rotary piston and .dies Sealing sleeve creates a cavity.

Werden bei einem solchen Drehkolbenverdichter in. der Büchse Löcher vorgesehen, welche den Hohlrah,-" zwischen der Abflachung des Drehkolbens und der Büchse mit dem Druckraum des sichelförmigen Arbeitsraumes zwischen Drehkolben und Gehäuse verbinden, so stellt sich der Übelstand ein, daß sich jener Hohlrauen bald mit Schmiermittel füllt. Letzteres wird dann infolge des darauf wirkenden Druckes zwischen den Drehkolben rund die Dichtungsbüchse gepreßt, was ein seitliches Aufblähen der Büchse bedingt. Infolge dieses Aufblähens wird die Büchse ad der Abdichtungsstelle abgehoben, so daß eine sichere Abdichtung an der Gehäuseinnenwand beeinträchtigt wird. Um diesen Übelstand zu beheben, sind gemäß vorliegender Erfindung vor und hinter der Abflachung des Drehkolbens in seiner Achsrichtung sich erstreckende Nuten vorgesehen und diesen gegenüber in .der Büchse eine Anzahl Bohrungen angebracht. Diese Nuten und Bohrungen haben den Zweck, dem zwischen Drehkolben und Dichtungsbüchse gelangten Schmiermittel einen Abfluß zu ermöglichen.If in such a rotary piston compressor holes are provided in the bushing which connect the hollow roughness between the flattened area of the rotary piston and the bushing with the pressure chamber of the sickle-shaped working space between the rotary piston and housing, the disadvantage arises that those hollow roughnesses will soon arise The latter is then pressed around the sealing sleeve as a result of the pressure acting on it between the rotary lobes, which causes the sleeve to inflate to the side. In order to remedy this drawback, according to the present invention, grooves extending in its axial direction are provided in front of and behind the flattening of the rotary piston and a number of bores are made opposite these in the bush Schmi identify a drain to allow.

Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes veranschaulicht, und zwar .zeigt Fig. i einen Querschmtt des Drehkolbenverdichters in. einer Ebene senkrecht zur Maschinenachse. und -Fig. 2 eineu. axialen L,än;gsschnitt durch diesen Verdichter, wobeider Drehkolben und der Arbeitsschieber in Ansicht gezeigt sind.The drawing shows an embodiment of the subject matter of the invention Fig. i illustrates a cross section of the rotary lobe compressor in. a plane perpendicular to the machine axis. and -Fig. 2 one u. axial L, cut through this compressor, with the rotary piston and the working slide in view are shown.

i bezeichnet das Verdichtergehä@use und 2 den Drehkolben, @um welche eine sich damit drehende Büchse 3 gelegt ist. Der Kolben 2 ist mit seiner Büchse 3 außermittig auf der Maschinenwelle 7 angeordnet -und begrenzt zusammen reit dem Gehäuse i einen sichelförmigen Arbeitsraum 8, der von einem Arbeits-oder Dichtungsschieber 9 in einen Ansang- -und Ausstoßraum unterteilt ist. 4 bezeichnet die Abflachung am Drehkolben, 2 und 5 den Hohlraum zwischen dieser Abflachung 4 und der Büchse 3, während 6 auf der Druckseite vorgesehene Druckausgleichlöcher sind. Vor und hinter der Abflachung 4 sind in der Achsrichtung des Drehkolbens 2 sich erstreckende Nuten i o, i i und diesen gegenüber in der Büchse 3 eine Anzahl Bohrungen i-- vorgesehen.i denotes the compressor housing and 2 the rotary piston, @ around which a rotating sleeve 3 is placed therewith. The piston 2 is with its sleeve 3 arranged eccentrically on the machine shaft 7 -and limited together riding the housing i a sickle-shaped working space 8, which is supported by a working or sealing slide 9 is divided into a Ansang- and discharge space. 4 indicates the flattening on the rotary piston, 2 and 5 the cavity between this flat 4 and the sleeve 3, while 6 are pressure compensation holes provided on the pressure side. Before and after of the flat area 4 are grooves extending in the axial direction of the rotary piston 2 i o, i i and these opposite in the sleeve 3 a number of holes i-- provided.

Hat die gegen die Gehäuseinnenwan:d federnd anliegende Stelle der Büchse 3 das Einlaßende des Druckkanals 13 überschritten, so ist zwischen jener Stelle, dem Dichtungsschieber 9, der Gehäuseinnenwandung und einem Teil des Umfanges der Büchse 3 ein sichelförmiger Raum 14 vorhanden, der um so kleiner wird, je mehr ,sich die erwähnte Stelle dem Schieber 9 nähert. Dieser Raum 14 ist meistens mit Schmiermittel gefüllt, das von den geschmierten Führungsstellen für den Schieber 9 herkommt. Das erwähnte Schmiermittel wird durch die Bohrungen 6 in den Hohlraum 5 gedrückt und preßt sich dann infolge des darauf wirkenden Druckes aus dem Hohlraum 5 zwischen Büchse 3 und Drehkolben 2 und gelangt so in die Entlastungsnuten io und i i, von wo aus es durch die Bohrungen 12 in den Arbeitsraum 8 abfließt, wo ein viel kleinerer Druck herrscht als in dem erwähnten mit Schmiermittel gefüllten sichelförmigen Raum 14. Auf diese Weise wird verhindert, daß das aus dem Raum 14 in den Hohlraum 5 gepreßte Schmiermittel an den beiden Auslaufenden, in der Drehrichtung des Kolbens 2 betrachtet, der Abflachung 4. zwischen Drehkolben 2 und Büchse 3 gepreßt wird, was ein Aufblähen der letzteren zur Folge hätte.Has the point of the Sleeve 3 exceeded the inlet end of the pressure channel 13, it is between that Place, the sealing slide 9, the inner wall of the housing and part of the circumference the sleeve 3 has a sickle-shaped space 14, which becomes smaller the more , the mentioned point approaches the slide 9. This room 14 is mostly with Lubricant filled by the lubricated guide points for the slide 9 comes from. The mentioned lubricant is through the bores 6 in the cavity 5 pressed and then pressed out of the cavity as a result of the pressure acting on it 5 between sleeve 3 and rotary piston 2 and so gets into the relief grooves io and i i, from where it flows through the bores 12 into the working space 8, where a The pressure is much lower than in the mentioned crescent-shaped one filled with lubricant Space 14. This prevents that from space 14 into the cavity 5 pressed lubricants at the two outlet ends, in the direction of rotation of the piston 2 considered, the flat 4. is pressed between rotary piston 2 and sleeve 3, which would cause the latter to bloat.

Claims (1)

PATENTANSPRUCH: Drehkolbenverdichter nach Patent 669 o9 i, dadurch gekennzeichnet, daß vor und hinter der Abflachung (4) des Drehkolbens (2) in seiner Achsrichtung sich erstreckende Nuten (i o, i i) vorgesehen ,und diesen gegenüber in der Büchse (3) eine Anzahl Bohrungen (12) angebracht sind.PATENT CLAIM: Rotary lobe compressor according to patent 669 o9 i, thereby characterized in that in front of and behind the flat (4) of the rotary piston (2) in its Axially extending grooves (i o, i i) are provided, and opposite them a number of bores (12) are made in the sleeve (3).
DEST55680D 1936-12-02 1937-01-07 Rotary lobe compressors Expired DE677288C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH677288X 1936-12-02

Publications (1)

Publication Number Publication Date
DE677288C true DE677288C (en) 1939-06-22

Family

ID=4528215

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST55680D Expired DE677288C (en) 1936-12-02 1937-01-07 Rotary lobe compressors

Country Status (1)

Country Link
DE (1) DE677288C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036111B (en) * 1955-05-17 1958-08-07 Robert Klein Hairpin-shaped stirrups for worn-out shoes are arranged on a rod-shaped or tubular carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036111B (en) * 1955-05-17 1958-08-07 Robert Klein Hairpin-shaped stirrups for worn-out shoes are arranged on a rod-shaped or tubular carrier

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