EP2616683A2 - Seal for the rotor of rotary piston machines - Google Patents

Seal for the rotor of rotary piston machines

Info

Publication number
EP2616683A2
EP2616683A2 EP11767948.0A EP11767948A EP2616683A2 EP 2616683 A2 EP2616683 A2 EP 2616683A2 EP 11767948 A EP11767948 A EP 11767948A EP 2616683 A2 EP2616683 A2 EP 2616683A2
Authority
EP
European Patent Office
Prior art keywords
piston
rotor
sealing elements
halves
sealing
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.)
Withdrawn
Application number
EP11767948.0A
Other languages
German (de)
French (fr)
Inventor
Eggert GÜNTHER
Norbert GÜNTHER
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.)
EN3 GmbH
Original Assignee
EN3 GmbH
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 EN3 GmbH filed Critical EN3 GmbH
Publication of EP2616683A2 publication Critical patent/EP2616683A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/02—Radially-movable sealings for working fluids
    • F01C19/04—Radially-movable sealings for working fluids of rigid material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/08—Axially-movable sealings for working fluids
    • F01C19/085—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/10—Sealings for working fluids between radially and axially movable parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/12—Sealing arrangements in rotary-piston machines or engines for other than working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors

Definitions

  • the invention relates to a system for sealing the piston of rotary piston machines.
  • Piston halves is taken over by further sealing elements, which are arranged in the region of the parting line.
  • the present invention relates to these groups of rotary piston machines.
  • Divided pistons of these groups have the characteristic that they have a good dynamic tightness with the said sealing system in the operation of the machines, but in non-operating machines, the static tightness is low.
  • Sitting rotor axis are pressed apart by acting spring and / or gas forces in the joints between the discs so that the facing to the side walls of the housing end faces of the discs sealingly abut it and thus prevent access of the medium to the axes.
  • packages of movable form slats which adapt to the variable joint widths and prevent an inner flow around the rotor.
  • the present invention has as its object to increase the static tightness of the stationary, not in operation machine as it is achieved in machines of reciprocating engine design with new, not worn piston rings.
  • FIG. 3 sealing of the rotor of a rotary engine of the Wankel type
  • Figure 4 sealing the piston of a rotary piston engine with a double-piston.
  • the two piston halves 1a and 1b are by compression springs in
  • Rotor inner (not shown) pressed against side walls of the rotor housing and seal it around the central shaft (not shown) from.
  • the wings 3 are pressed by the compression springs 4 radially outward and seal the rotor against the housing track.
  • the wings 3 have internal compression springs, which at the same time they spread axially outward against the housing side walls. The parting line between the
  • Piston halves 1a and 1b is covered by sealing elements 5.
  • the seals are placed over the piston halves 1a and 1b so that they can move in the axial direction and thus their sealing contact against the
  • Housing sides can keep.
  • the sealing elements 5 extend on both sides into the receiving grooves 2 in the piston halves 1 a and 1 b, which are bent at the lower ends so that they overlap and result in a fluid-tight support for the compression springs 4.
  • the sealing elements 5 are made of flexible material, the
  • the compression springs 4 which cause the radial pressure of the radial sealing elements, at the same time also exert the corresponding back pressure on the ends of the strip-shaped sealing elements 5 and thus prevent their movement out of the receiving grooves. 2
  • the solution according to the invention is identical to the described solution for the vane-rotor.
  • Sealing elements 5, 11 and 16 are derived from the respective configuration of the piston of the rotary piston engine and the number of corners of the piston.

Abstract

The invention relates to a seal for the piston of rotary piston machines, which consists of two or more rotor segments which are arranged next to one another and which seals the joint/joints between the piston segments with respect to the working fluid. The present invention has the problem of increasing the static sealing action of the resting machine which is not in operation, in a way which is also achieved in machines of the reciprocating-piston type by way of new piston rings which are not worn. The solution according to the invention of the problem is achieved by the fact that a film-like covering is laid from the outside over the joint between the piston halves, which film-like covering can have the width of both piston halves and is joined to the sealing elements for the radial sealing of the piston in such a way that the axial mobility of the piston halves with respect to one another is not impaired, but the joint between them is closed around the rotary piston in a sealed manner by fluid forces which act.

Description

Abdichtung des Rotors von Rotationskolbenmaschinen  Sealing of the rotor of rotary piston machines
Beschreibung description
[0001] Gegenstand der Erfindung ist ein System zur Abdichtung des Kolbens von Rotationskolbenmaschinen. The invention relates to a system for sealing the piston of rotary piston machines.
Stand der Technik State of the art
[0002] Für Rotationskolbenmaschinen sind unterschiedliche Lösungswege zur Herstellung der Dichtheit des Kolbens bekannt. For rotary piston machines different approaches to the production of the tightness of the piston are known.
[0003] Bei der bekannten Wankel-Maschine ist ein räumliches System von In the known Wankel machine is a spatial system of
Dichtleisten derart um den rotierenden Kolben angeordnet, dass eine federnde nachsetzende Abdichtung in axialer und radialer Richtung gegen das umgebende Gehäuse erreicht wird. Mit diesem Dichtsystem ist es möglich, dass die Wankel-Maschine als Kraftmaschine mit der inneren Verbrennung beim Otto-Prozess eingesetzt werden kann.  Sealing strips arranged in such a way around the rotating piston, that a resilient trailing seal in the axial and radial direction is achieved against the surrounding housing. With this sealing system, it is possible that the Wankel engine can be used as an internal combustion combustion engine in the Otto process.
[0004] Die meisten anderen bekannten Rotationskolbenmaschinen haben keine federnd selbstnachstellende Abdichtungen zwischen dem rotierenden Kolben und dem umgebenden Gehäuse. Dies macht sie als Most other known rotary piston engines have no resilient self-adjusting seals between the rotating piston and the surrounding housing. This makes them as
Expansionsmaschine in einem Kraftmaschinenprozess ungeeignet, ihr Einsatz als Kompressionsmaschine ist Stand der Technik.  Expansionsmaschine in an engine process unsuitable, their use as a compression machine is state of the art.
[0005] Bekannt geworden sind auch Rotationskolbenmaschinen, die über Kolben verfügen, die quer zur Drehachse geteilt sind, so dass die Kolbenhälften durch Federn derart auseinander gedrückt werden können, dass sie an den Seitenflächen des umgebenden Gehäuses anliegen und somit Flächendichtungen bilden. Die Abdichtung zwischen den beiden Also known rotary piston machines, which have pistons which are divided transversely to the axis of rotation, so that the piston halves can be pressed apart by springs so that they rest against the side surfaces of the surrounding housing and thus form surface seals. The seal between the two
15.09.201 1 Kolbenhälften wird durch weitere Dichtelemente übernommen, die im Bereich der Teilfuge angeordnet sind. 15.09.201 1 Piston halves is taken over by further sealing elements, which are arranged in the region of the parting line.
[0008] Rotationskolbenmaschinen mit solchen geteilten Kolben können Rotary piston machines with such split piston can
Flügelzellenmaschinen oder Kreiskolbenmaschinen sein.  Be vane machines or rotary engines.
[0007] Auf diese Gruppen der Rotationskolbenmaschinen bezieht insbesondere sich die vorliegende Erfindung. Geteilte Kolben dieser Gruppen haben die Eigenschaft, dass sie mit dem genannten Dichtsystem im Betrieb der Maschinen eine gute dynamische Dichtheit aufweisen, bei nicht im Betrieb befindlichen Maschinen ist die statische Dichtheit jedoch nur gering. In particular, the present invention relates to these groups of rotary piston machines. Divided pistons of these groups have the characteristic that they have a good dynamic tightness with the said sealing system in the operation of the machines, but in non-operating machines, the static tightness is low.
[0008] Die Patentanmeldung DE 102006057003 A1 offenbart ein Dichtsystem von Rotationskolbenmaschinen, bei dem der Rotor aus nebeneinander angeordneten Rotorscheiben besteht, die auf der gemeinsamen The patent application DE 102006057003 A1 discloses a sealing system of rotary piston machines, in which the rotor consists of juxtaposed rotor disks, which on the common
Rotorachse sitzen und durch wirkende Feder- und/oder Gaskräfte in den Fugen zwischen den Scheiben so auseinandergedrückt werden, dass die zu den Seitenwänden des Gehäuses zeigenden Stirnseiten der Scheiben dichtend daran anliegen und so den Zugang des Mediums zu den Achsen verhindern. In den Teilfugen zwischen den Scheiben sind Pakete aus beweglichen Formlamellen vorhanden, die sich den veränderlichen Fugenbreiten anpassen und eine innere Umströmung des Rotors verhindern.  Sitting rotor axis and are pressed apart by acting spring and / or gas forces in the joints between the discs so that the facing to the side walls of the housing end faces of the discs sealingly abut it and thus prevent access of the medium to the axes. In the parting joints between the panes there are packages of movable form slats, which adapt to the variable joint widths and prevent an inner flow around the rotor.
Darstellung der Erfindung Presentation of the invention
[0009] Die vorliegende Erfindung stellt sich die Aufgabe, die statische Dichtheit der ruhenden, nicht im Betrieb befindlichen Maschine so zu erhöhen, wie sie auch bei Maschinen der Hubkolbenmaschinen-Bauart mit neuen, nicht verschlissenen Kolbenringen erreicht wird. The present invention has as its object to increase the static tightness of the stationary, not in operation machine as it is achieved in machines of reciprocating engine design with new, not worn piston rings.
[0010] Die erfindungsgemäße Lösung der Aufgabe wird dadurch erreicht, dass von außen über die Teilfuge zwischen den Kolbenhälften eine folienartige Abdeckung gelegt wird, die die Breite beider Kolbenhälften haben kann The achievement of the object is achieved in that from the outside on the parting line between the piston halves a film-like cover is placed, which may have the width of both piston halves
15.09.201 1 und derart mit den Dichtelementen für die radiale Abdichtung des Kolbens verbunden wird, so dass die axiale Beweglichkeit der Kolbenhälften zueinander nicht eingeschränkt wird, jedoch die Teilfuge zwischen ihnen durch wirkende Fluidkräfte dicht rund um den Rotationskolben dicht verschlossen wird. 15.09.201 1 and is so connected to the sealing elements for the radial sealing of the piston, so that the axial mobility of the piston halves is not limited to each other, but the parting line between them by acting fluid forces tightly sealed around the rotary piston.
Kurze Beschreibung der Abbildungen Brief description of the illustrations
[0011] Die Erfindung wird an nachfolgenden Beispielen beschrieben, The invention will be described by the following examples,
Figur 1 , Figur 2 Abdichtung eines Flügelzellenrotors,  FIG. 1, FIG. 2, sealing of a vane-cell rotor,
Figur 3 Abdichtung des Rotors einer Kreiskolbenmaschine der Wankel-Bauart,  FIG. 3 sealing of the rotor of a rotary engine of the Wankel type,
Figur 4 Abdichtung des Kolbens einer Kreiskolbenmaschine mit einem Zweieck-Kolben.  Figure 4 sealing the piston of a rotary piston engine with a double-piston.
Ausführung der Erfindung Embodiment of the invention
[0012] Zu Figur 1 und Figur 2: To Figure 1 and Figure 2:
[0013] Die beiden Kolbenhälften 1a und 1 b werden durch Druckfedern im The two piston halves 1a and 1b are by compression springs in
Rotorinneren (nicht dargestellt) gegen Seitenwände des Rotorgehäuses gedrückt und dichten diese um die zentrale Welle (nicht dargestellt) ab. Die Flügel 3 werden durch die Druckfedern 4 radial nach außen gedrückt und dichten den Rotor gegen die Gehäuselaufbahn ab. Die Flügel 3 besitzen innere Druckfedern, die sie gleichzeitig axial nach außen gegen die Gehäuse-Seitenwände spreizen. Die Trennfuge zwischen den  Rotor inner (not shown) pressed against side walls of the rotor housing and seal it around the central shaft (not shown) from. The wings 3 are pressed by the compression springs 4 radially outward and seal the rotor against the housing track. The wings 3 have internal compression springs, which at the same time they spread axially outward against the housing side walls. The parting line between the
Kolbenhälften 1a und 1 b wird durch Abdichtungselemente 5 abgedeckt.  Piston halves 1a and 1b is covered by sealing elements 5.
[0014] Nach der erfindungsgemäßen Lösung sind die Abdichtungen derart über die Kolbenhälften 1a und 1 b gelegt, dass diese sich in axialer Richtung verschieben können und somit ihre dichtende Anlage gegen die After the solution according to the invention, the seals are placed over the piston halves 1a and 1b so that they can move in the axial direction and thus their sealing contact against the
Gehäuseseiten behalten können.  Housing sides can keep.
15.09.201 1 [0015] Die Abdichtungselemente 5 reichen beidseitig hinein in die Aufnahme- Nuten 2 in den Kolbenhälften 1a und 1 b, die sind an den unteren Enden so abgekantet, dass sie sich überdecken und eine fluid-dichte Auflage für die Druckfedern 4 ergeben. 15.09.201 1 The sealing elements 5 extend on both sides into the receiving grooves 2 in the piston halves 1 a and 1 b, which are bent at the lower ends so that they overlap and result in a fluid-tight support for the compression springs 4.
[0016] Die Abdichtungselemente 5 bestehen aus biegsamem Material, das The sealing elements 5 are made of flexible material, the
undurchlässig für das Fluid der Maschine und zugleich weitere  impermeable to the fluid of the machine and at the same time more
Eigenschaften wie thermische und chemische Widerstandsfähigkeit gegen das Fluid besitzt.  Has properties such as thermal and chemical resistance to the fluid.
[0017] Die Druckfedern 4, die den radialen Druck der radialen Dichtelemente bewirken, üben zugleich auch den entsprechenden Gegendruck auf die Enden der streifenförmigen Abdichtungselemente 5 aus und verhindern so ihre Herausbewegung aus den Aufnahme-Nuten 2. The compression springs 4, which cause the radial pressure of the radial sealing elements, at the same time also exert the corresponding back pressure on the ends of the strip-shaped sealing elements 5 and thus prevent their movement out of the receiving grooves. 2
[0018] Zu Figure 3 und Figure 4: To Figure 3 and Figure 4:
[0019] Die erfindungsgemäße Lösung ist identisch mit der beschriebenen Lösung für den Flügelzellen-Rotor. Die Form und die Anzahl der The solution according to the invention is identical to the described solution for the vane-rotor. The shape and number of
Abdichtungselemente 5, 11 und 16 wird von der jeweiligen Konfiguration des Kolbens der Kreiskolbenmaschine und der Anzahl der Ecken des Kolbens abgeleitet.  Sealing elements 5, 11 and 16 are derived from the respective configuration of the piston of the rotary piston engine and the number of corners of the piston.
Bezugszeichen reference numeral
1 Rotor 1 rotor
1a, 1 b Kolbenhälften  1a, 1b piston halves
2 Aufnahme-Nuten für die Flügel im Rotor  2 receiving grooves for the wings in the rotor
3 Flügel  3 wings
4 Druckfedern unter den Flügeln 3  4 compression springs under the wings 3
5 Abdichtungselemente über der Trennfuge zwischen Flügeln  5 sealing elements over the parting line between wings
6 Trennfuge zwischen den Rotorhälften  6 parting line between the rotor halves
7 7a, 7b Kolbenhälften  7 7a, 7b piston halves
8 Dichtleisten zur radialen Abdichtung des Kolbens  8 sealing strips for radial sealing of the piston
15.09.201 1 Trennfuge zwischen den Kolbenhälften 15.09.201 1 Parting line between the piston halves
Druckfeder unter den Dichtleisten 8 Compression spring under the sealing strips 8
Abdichtungselemente über der Trennfuge zwischen den Kolbenhälften 12a, 12b Gleitbeschichtung auf den äußeren Kolbenseiten Sealing elements over the parting line between the piston halves 12a, 12b sliding coating on the outer sides of the piston
13a, 13b Kolbenhälften 13a, 13b piston halves
Trennfuge zwischen den Kolbenhälften Parting line between the piston halves
Dichtleisten zur radialen Abdichtung des Kolbens Sealing strips for radial sealing of the piston
Abdichtungselemente über der Trennfuge zwischen den Kolbenhälften Sealing elements over the parting line between the piston halves
15.09.201 1 15.09.201 1

Claims

Ansprüche  claims
1 , Abdichtung eines Rotors einer Rotationskolbenmaschinen, wobei der Rotor quer zur Drehachse geteilt ist, wobei Federn die Kolbenhälften (1a, 1 b) derart auseinander drücken, dass die Kolbenhälften (1a, 1 b) an den Seitenflächen des umgebenden Gehäuses anliegen und eine Flächendichtung bilden, dadurch gekennzeichnet, dass 1, sealing a rotor of a rotary piston machine, wherein the rotor is divided transversely to the axis of rotation, wherein springs the piston halves (1a, 1 b) press apart so that the piston halves (1a, 1 b) bear against the side surfaces of the surrounding housing and a surface seal form, characterized in that
über die Teilfuge(n) des Rotors von außen biegsame dünne, blechartige streifenförmige Abdichtungselemente (5, 11 , 16) aus für den Arbeitsprozess geeignetem Material so über die konvexe Rotorwölbung gelegt werden, dass die Trennfuge(n) (6, 9, 14) zwischen den Rotorhälften (1a und 1 b) gegen das Arbeitsfluid der Maschine verschlossen werden und sich die darunter liegenden Kolbenhälften (1a, 1 b) axial frei verschieben können,  flexible thin, sheet-like strip-shaped sealing elements (5, 11, 16) of material suitable for the working process are placed over the parting line (s) of the rotor from the outside over the convex rotor curvature in such a way that the parting line (s) (6, 9, 14) between the rotor halves (1a and 1b) are closed against the working fluid of the machine and the piston halves (1a, 1b) underneath can move freely axially,
2, Abdichtung nach Anspruch 1 dadurch gekennzeichnet, dass 2, sealing according to claim 1, characterized in that
die Abdichtungselemente (5, 11 , 16) etwas geringere Breite haben als die Breite des Kolbens.  the sealing elements (5, 11, 16) have slightly smaller width than the width of the piston.
3, Abdichtung nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass 3, seal according to claim 1 or 2, characterized in that
die Abdichtungselemente (5, 11 , 16) an den Aufnahme-Nuten (2) für die radialen Dichtelemente umgebogen sind, sodass sie in diese Nuten bis auf den Nutengrund hineinreichen.  the sealing elements (5, 11, 16) are bent over the receiving grooves (2) for the radial sealing elements, so that they extend into these grooves down to the groove bottom.
4, Abdichtung nach Anspruch 3 dadurch gekennzeichnet, dass 4, sealing according to claim 3, characterized in that
die Abdichtungselemente (5, 11 , 16) auf dem Nutengrund der Aufnahme- Nuten (2) nochmals so umgebogen sind, dass sie übereinander auf dem Nutengrund aufliegen.  the sealing elements (5, 11, 16) on the groove bottom of the receiving grooves (2) are again bent so that they rest on each other on the groove bottom.
5, Abdichtung nach einem der Ansprüche 1 bis 4 dadurch gekennzeichnet, dass Druckfedern (4, 10), die den radialen Druck der radialen Dichtelemente bewirken, zugleich auch den entsprechenden Gegendruck auf die Enden der streifenförmigen Abdichtungselemente (5, 11 , 16) ausüben und so ihre Herausbewegung aus den Aufnahme-Nuten (2) verhindern. 5, seal according to one of claims 1 to 4, characterized in that compression springs (4, 10), which cause the radial pressure of the radial sealing elements, at the same time also exert the corresponding counter pressure on the ends of the strip-shaped sealing elements (5, 11, 16) and so prevent their movement out of the receiving grooves (2).
15.09.201 1 15.09.201 1
EP11767948.0A 2010-09-17 2011-09-15 Seal for the rotor of rotary piston machines Withdrawn EP2616683A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010040958A DE102010040958B3 (en) 2010-09-17 2010-09-17 Sealing of the rotor of rotary piston machines
PCT/EP2011/065985 WO2012035091A2 (en) 2010-09-17 2011-09-15 Seal for the rotor of rotary piston machines

Publications (1)

Publication Number Publication Date
EP2616683A2 true EP2616683A2 (en) 2013-07-24

Family

ID=44789427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11767948.0A Withdrawn EP2616683A2 (en) 2010-09-17 2011-09-15 Seal for the rotor of rotary piston machines

Country Status (6)

Country Link
US (1) US20130183186A1 (en)
EP (1) EP2616683A2 (en)
JP (1) JP2013540938A (en)
CN (1) CN103228869A (en)
DE (1) DE102010040958B3 (en)
WO (1) WO2012035091A2 (en)

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CN106368809A (en) * 2016-10-20 2017-02-01 北京理工大学 Tiny rotor with radial sealing piece
CN111630081B (en) 2018-01-26 2023-10-31 湛新荷兰有限公司 Powder coating composition
CN110374874A (en) * 2019-07-29 2019-10-25 黄石东贝电器股份有限公司 A kind of multiple anti-leak spring-piece type slide block mechanism
KR102522994B1 (en) * 2021-10-28 2023-04-19 엘지전자 주식회사 Rotary compressor
KR102545597B1 (en) * 2022-01-14 2023-06-21 엘지전자 주식회사 Rotary compressor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334906A (en) * 1920-03-23 keith
US1582922A (en) * 1921-08-09 1926-05-04 Freud Joseph Rotary pump
US3359956A (en) * 1966-04-19 1967-12-26 Curtiss Wright Corp Rotor construction for rotary engines
JPS50105614U (en) * 1974-02-02 1975-08-30
DE2632449A1 (en) * 1976-07-19 1978-04-27 Erich Paprotny Trochoidal IC engine with two seals - has each seal lining one side and peripheral half of piston
DE2840622A1 (en) * 1978-09-19 1980-05-29 Raimund August Sealing strip for rotary IC engine - has triangular toothed connection to cylinder to eliminate leakage
US4308002A (en) * 1979-10-25 1981-12-29 Alfonso Di Stefano Wankel-type engine with semi-circular sectional configuration for chamber end surface
JPS56135778A (en) * 1980-03-25 1981-10-23 Diesel Kiki Co Ltd Method of manufacturing compressor rotor
JPS6021134A (en) * 1983-07-16 1985-02-02 Nippon Piston Ring Co Ltd Production of rotor for rotary type fluid pump
DE102006057003A1 (en) * 2006-12-02 2008-06-05 GÜNTHER, Eggert Principle and system for sealing the piston of rotary piston engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012035091A2 *

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WO2012035091A3 (en) 2013-05-16
CN103228869A (en) 2013-07-31
US20130183186A1 (en) 2013-07-18
JP2013540938A (en) 2013-11-07
DE102010040958B3 (en) 2012-03-15
WO2012035091A2 (en) 2012-03-22

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