DE102011086691B3 - Paired sealing strips for rotary piston machines - Google Patents
Paired sealing strips for rotary piston machines Download PDFInfo
- Publication number
- DE102011086691B3 DE102011086691B3 DE201110086691 DE102011086691A DE102011086691B3 DE 102011086691 B3 DE102011086691 B3 DE 102011086691B3 DE 201110086691 DE201110086691 DE 201110086691 DE 102011086691 A DE102011086691 A DE 102011086691A DE 102011086691 B3 DE102011086691 B3 DE 102011086691B3
- Authority
- DE
- Germany
- Prior art keywords
- sealing strips
- rotary piston
- sealing
- strips
- paired
- 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 - Fee Related
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Images
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
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
- F01C19/02—Radially-movable sealings for working fluids
- F01C19/06—Radially-movable sealings for working fluids of resilient 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
- 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
- F01C1/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F01C1/3442—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 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
-
- 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
- F01C19/08—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
- 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
- F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more 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
- 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
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
- F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
- Compressor (AREA)
Abstract
Gegenstand der Erfindung ist eine Ausführung der Dichtleisten von Rotationskolbenmaschinen zur Reduzierung der Reibung zwischen Flügeln und Gehäuselaufbahn und zur Verhinderung von Medienleckagen. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Reibung und Leckagen an den Dichtleisten zu reduzieren, indem die Medienkräfte in den Arbeitskammern für diese Aufgabe eingesetzt werden. Die Aufgabe wird durch paarige Dichtleisten für Rotationskolbenmaschinen gelöst, welche quer geteilt sind, sich axial überlappen und sich an die Seitenwände der Rotationskolbenmaschine anpassen und flexible federnde Dichtstreifen aufweisen, die jeweils in die Dichtleisten an deren radialen Außenkanten so eingefügt sind, dass sie aus den Dichtleisten herausragen. Die Dichtstreifen reichen paarweise gemeinsam über die gesamte Breite der Rotationskolbenmaschine und folgen einer axialen Spreizung der Dichtleisten.The invention relates to an embodiment of the sealing strips of rotary piston machines to reduce the friction between the vanes and the housing raceway and to prevent media leaks. The present invention has for its object to reduce friction and leakage on the sealing strips by using the media forces in the working chambers for this task. The task is solved by paired sealing strips for rotary piston machines, which are divided transversely, axially overlap and adapt to the side walls of the rotary piston machine and have flexible resilient sealing strips, which are each inserted into the sealing strips on their radial outer edges so that they come out of the sealing strips stick out. The sealing strips extend in pairs over the entire width of the rotary piston machine and follow an axial expansion of the sealing strips.
Description
Gegenstand der Erfindung ist eine Ausführung der Dichtleisten von Rotationskolbenmaschinen zur Reduzierung der Reibung zwischen Flügeln und Gehäuselaufbahn und zur Verhinderung von Medienleckagen. The invention relates to an embodiment of the sealing strips of rotary piston machines to reduce the friction between the wings and housing track and to prevent media leaks.
Stand der Technik State of the art
Nach dem bekannten Stand der Technik werden die Dichtleisten von Rotationskolbenmaschinen so ausgeführt, dass sie bei der Bewegung mit Federkraft, Fliehkraft oder Mediendruck gegen die Gehäuselaufbahn oder die Seitenflächen des Gehäuses gedrückt werden und somit die Arbeitsräume der Rotationskolbenmaschine gegeneinander abdichten. Stets ist mit diesen Kraftwirkungen zugleich eine Reibung zwischen Dichtleisten und Gehäuseteilen verbunden. Bei den meisten Rotationskolbenmaschinen wird dem Arbeitsmedium ein Schmiermittel zugegeben, um die Dichtwirkung zu verbessern und die Reibung zu reduzieren. Trotz dieser Maßnahmen können zumeist schädliche Medienleckagen – ‚Blow-By’ – zwischen den Arbeitsräumen nicht gänzlich verhindert werden. According to the known prior art, the sealing strips of rotary piston machines are designed so that they are pressed during movement with spring force, centrifugal force or media pressure against the housing track or the side surfaces of the housing and thus seal the working spaces of the rotary piston machine against each other. Always a friction between the sealing strips and housing parts is connected with these force effects at the same time. In most rotary piston engines, a lubricant is added to the working fluid to improve the sealing effect and to reduce friction. Despite these measures, mostly harmful media leaks - 'blow-by' - between workplaces can not be completely prevented.
Ein anderer Weg zur Verminderung der Reibung bei Flügelzellenmaschinen besteht darin, die Steuerung der Flügel anstelle durch die Laufbahn mit in die Seitenwände der Flügelzellenmaschine angeordneter Führungsringe durchzuführen. Einen entsprechenden Vorschlag enthält beispielsweise die Patentveröffentlichung
Bekannt ist auch die Anordnung von flexiblen Blechen an den Spitzen von Dichtleisten, die sich an die Gehäuselaufbahn anlegen und so Reibung und Leckagen reduzieren sollen. Insbesondere bei diesen bekannten Vorschlägen wird das physikalische Prinzip des inneren Ausgleichs der Systemkräfte nicht berücksichtigt. Also known is the arrangement of flexible sheets at the tips of sealing strips that bear against the housing track and thus reduce friction and leakage. In particular, these known proposals, the physical principle of the internal compensation of the system forces is not considered.
In der Veröffentlichung
Darstellung der Erfindung Presentation of the invention
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Reibung und Leckagen an den Dichtleisten zu reduzieren, indem die Medienkräfte in den Arbeitskammern für diese Aufgabe eingesetzt werden. Ausgangspunkt für die Lösung der Aufgabe ist
Die Aufgabe wird durch paarige Dichtleisten für Rotationskolbenmaschinen gelöst, welche quer geteilt sind, sich axial überlappen und sich an die Seitenwände der Rotationskolbenmaschine anpassen und flexible federnde Dichtstreifen aufweisen, die jeweils in die Dichtleisten an deren radialen Außenkanten so eingefügt sind, dass sie aus den Dichtleisten herausragen. Die Dichtstreifen reichen paarweise gemeinsam über die gesamte Breite der Rotationskolbenmaschine und folgen einer axialen Spreizung der Dichtleisten. The object is achieved by paired sealing strips for rotary piston machines, which are divided transversely, axially overlap and adapt to the side walls of the rotary piston machine and have flexible resilient sealing strips, which are respectively inserted into the sealing strips at the radial outer edges so that they from the sealing strips protrude. The sealing strips extend in pairs together over the entire width of the rotary piston machine and follow an axial spread of the sealing strips.
Die Dichtleisten weisen für die Aufnahme der Dichtstreifen eine führende Nute auf. Die Dichtstreifen werden darin durch Arretierungsstifte gehalten. The sealing strips have a leading groove for receiving the sealing strips. The sealing strips are held therein by locking pins.
In einer Ausführungsform werden die Dichtstreifen mehrfach angeordnet, so dass Pakete aus Dichtstreifen gebildet werden. In one embodiment, the sealing strips are arranged several times, so that packages are formed from sealing strips.
Die aus den Dichtleisten herausragenden Dichtstreifen werden entweder an der Gehäuselaufbahn in Umfangsrichtung oder in beide Umfangsrichtungen umgebogen.The protruding from the sealing strips sealing strips are bent either on the housing track in the circumferential direction or in both circumferential directions.
Durch die erfindungsgemäße Lösung werden jeweils axial durchgehende, von Gehäuseseitenwand zu Gehäuseseitenwand reichende Sperren gegen Medienübertritte gebildet mit gleichzeitig minimaler Reibung an der Gehäusewand. By means of the solution according to the invention, in each case axially continuous barriers extending from the housing side wall to the housing side wall are formed against media transitions with at the same time minimal friction on the housing wall.
Eine weitere erfindungsgemäße Eigenschaft besteht darin, dass sich die auf die projizierte Stirnfläche des Dichtleistenpaares wirkenden Medienkräfte mit den Kräften aufheben können, die an den flexiblen Bauteilen gegen die Gehäusewand der Maschine wirken und somit eine Kontursteuerung der Flügel nicht gegen die auf die projizierte Stirnflächen der Dichtleisten arbeiten muss. Another feature of the invention is that the forces acting on the projected face of the pair of sealing strips media forces can cancel with the forces acting on the flexible components against the housing wall of the machine and thus a contour control of the wings against the projected on the end faces of the sealing strips Must work.
Ausführung der Erfindung Embodiment of the invention
Die erfindungsgemäße Lösung wird an einem Ausführungsbeispiel beschrieben. Hierzu zeigen The solution according to the invention will be described on an exemplary embodiment. Show this
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Gehäuse einer Rotationskolbenmaschine Housing of a rotary piston machine
- 2 2
- Rotor einer Rotationskolbenmaschine Rotor of a rotary piston machine
- 3 3
- radiale Dichtleiste radial sealing strip
- 3a, 3b 3a, 3b
-
geteilte Dichtleiste
3 splitsealing strip 3 - 4 4
-
radiale Führungsnute für die Dichtleiste
3 radial guide groove for thesealing strip 3 - 5a, 5b 5a, 5b
- flexible federnde Dichtstreifen flexible resilient sealing strips
- 6 6
-
führende Nute in der Dichtleiste
3 leading groove in thesealing strip 3 - 7 7
-
einseitige Abflachung der Dichtleiste
3 unilateral flattening of thesealing strip 3 - 8 8th
-
Bohrung für Arretierungsstifte
15a ,15b Bore forlocking pins 15a .15b - 9 9
-
Bohrung zur Aufnahme Spreizfeder
14 Bore for receiving spreadingspring 14 - 10 10
-
Bohrung zur Aufnahme der Andruckfedern
13a ,13b Bore for receiving thepressure springs 13a .13b - 11 11
-
Loch durch die Dichtstreifen
5a ,5b Hole through thesealing strips 5a .5b - 12 12
-
Langloch durch die Dichtstreifen
5a ,5b Long hole through thesealing strip 5a .5b - 13a, 13b 13a, 13b
- Andruckfedern pressure springs
- 14 14
- Spreizfeder splay
- 15a, 15b 15a, 15b
- Arretierungsstift locking pin
Der Aufbau einer geteilten Dichtleiste
Durch die Spreizfeder
Durch die Andruckfedern
Die Anordnung der Dichtstreifen
Bei der Montage des Rotors
Durch die Arretierungsstifte
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110086691 DE102011086691B3 (en) | 2011-11-21 | 2011-11-21 | Paired sealing strips for rotary piston machines |
EP20120192497 EP2597255A2 (en) | 2011-11-21 | 2012-11-14 | Paired seal strips for rotary piston engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110086691 DE102011086691B3 (en) | 2011-11-21 | 2011-11-21 | Paired sealing strips for rotary piston machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011086691B3 true DE102011086691B3 (en) | 2012-11-29 |
Family
ID=47140639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110086691 Expired - Fee Related DE102011086691B3 (en) | 2011-11-21 | 2011-11-21 | Paired sealing strips for rotary piston machines |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2597255A2 (en) |
DE (1) | DE102011086691B3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
US10294791B2 (en) | 2014-02-25 | 2019-05-21 | Oxford University Innovation Limited | Rotary engine seals |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014003591B4 (en) * | 2014-03-04 | 2020-03-12 | Gerd-Uwe Dahlmann | Rotary piston internal combustion engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028807A1 (en) * | 2006-06-23 | 2007-12-27 | Initiativkreis Druckzellenmotor E.V. | Heat engine e.g. petrol engine, for e.g. commercial vehicle, has synchronized bucket wheels for obtaining spatial isochoric combustion in pressure cell, where initial value and inclination value of linear function are cleared |
DE102006057003A1 (en) * | 2006-12-02 | 2008-06-05 | GÜNTHER, Eggert | Principle and system for sealing the piston of rotary piston engines |
-
2011
- 2011-11-21 DE DE201110086691 patent/DE102011086691B3/en not_active Expired - Fee Related
-
2012
- 2012-11-14 EP EP20120192497 patent/EP2597255A2/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028807A1 (en) * | 2006-06-23 | 2007-12-27 | Initiativkreis Druckzellenmotor E.V. | Heat engine e.g. petrol engine, for e.g. commercial vehicle, has synchronized bucket wheels for obtaining spatial isochoric combustion in pressure cell, where initial value and inclination value of linear function are cleared |
DE102006057003A1 (en) * | 2006-12-02 | 2008-06-05 | GÜNTHER, Eggert | Principle and system for sealing the piston of rotary piston engines |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10294791B2 (en) | 2014-02-25 | 2019-05-21 | Oxford University Innovation Limited | Rotary engine seals |
CN105041384A (en) * | 2014-07-21 | 2015-11-11 | 摩尔动力(北京)技术股份有限公司 | End face sealing system |
Also Published As
Publication number | Publication date |
---|---|
EP2597255A2 (en) | 2013-05-29 |
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R012 | Request for examination validly filed | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R081 | Change of applicant/patentee |
Owner name: EN3 GMBH, DE Free format text: FORMER OWNER: EN3 GMBH, 17033 NEUBRANDENBURG, DE Effective date: 20130228 |
|
R082 | Change of representative |
Representative=s name: SCHNICK & GARRELS PATENTANWAELTE, DE Effective date: 20130228 Representative=s name: SCHNICK & GARRELS PATENTANWAELTE PARTG MBB, DE Effective date: 20130228 |
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R020 | Patent grant now final |
Effective date: 20130301 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |