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1. WO2012069357 - ROTARY INTERNAL COMBUSTION ENGINE

Publication Number WO/2012/069357
Publication Date 31.05.2012
International Application No. PCT/EP2011/070362
International Filing Date 17.11.2011
IPC
F01C 19/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
19Sealing arrangements in rotary-piston machines or engines
10Sealings for working fluids between radially and axially movable parts
F01C 21/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details, or accessories, not provided for in groups F01C1/-F01C20/121
04Lubrication
F04C 29/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
29Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups F04C18/-F04C28/193
02Lubrication; Lubricant separation 
CPC
F01C 1/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
1Rotary-piston machines or engines
22of 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
F01C 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
13Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
F01C 19/085
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
19Sealing arrangements in rotary-piston machines or engines
08Axially-movable sealings for working fluids
085Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines
F01C 21/045
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
04Lubrication
045Control systems for the circulation of the lubricant
F01C 21/108
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
10Outer members for co-operation with rotary pistons; Casings
104Stators; Members defining the outer boundaries of the working chamber
108with an axial surface, e.g. side plates
F04C 13/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
13Adaptations of machines or pumps for special use, e.g. for extremely high pressures
008Pumps for submersible use, i.e. down-hole pumping
Applicants
  • AVL LIST GMBH [AT]/[AT] (AllExceptUS)
  • STEINBAUER, Michael [AT]/[AT] (UsOnly)
  • KROBATH, Andreas [AT]/[AT] (UsOnly)
  • RIEGER, Johannes [AT]/[AT] (UsOnly)
  • KNOLLMAYR, Christof [AT]/[AT] (UsOnly)
  • SANTNER, Roland [AT]/[AT] (UsOnly)
  • SALZGEBER, Kurt [AT]/[AT] (UsOnly)
Inventors
  • STEINBAUER, Michael
  • KROBATH, Andreas
  • RIEGER, Johannes
  • KNOLLMAYR, Christof
  • SANTNER, Roland
  • SALZGEBER, Kurt
Agents
  • BABELUK, Michael
Priority Data
A 1962/201025.11.2010AT
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) KREISKOLBENBRENNKRAFTMASCHINE
(EN) ROTARY INTERNAL COMBUSTION ENGINE
(FR) MOTEUR À COMBUSTION INTERNE À PISTON ROTATIF
Abstract
(DE)
Die Erfindung betrifft eine Kreiskolbenbrennkraftmaschine (1) mit zumindest einem in einer Kammer (3) eines Gehäuses (2) umlaufenden Kreiskolben (4), wobei die Kammer (3) von einer trochoidenförmigen Lauffläche (5) in einem zentralen Gehäuseteil (2a) und von einander beabstandeten, normal zu einer Exzenterwelle (10) angeordneten seitlichen Laufflächen (6, 7) gebildet ist, und wobei ein im Bereich der Exzenterwelle (10) ausgebildeter innerer Gehäuseraum (15) mit einem Entlüftungskanal (18) strömungsverbunden ist, wobei zwischen dem inneren Gehäuseraum (15) und dem Entlüftungskanal (18) ein vorzugsweise einen Ölvorabscheider ausbildender Entlüftungsraum (17) angeordnet ist, wobei der Entlüftungsraum (17) in einem an den zentralen Gehäuseteil (2a) in Richtung der Achse (10a) der Exzenterwelle (10) direkt oder indirekt anschließenden seitlichen ersten Gehäuseteil (2b) angeordnet ist. Um eine effiziente Abfuhr von Blow-By-Gas mit hohen Ölabscheideraten bei kompakter Bauweise der Kreiskolbenbrennkraftmaschine (1) zu erreichen, ist vorgesehen, dass der Entlüftungsraum (17) zumindest eine Trennwand (20) und/oder zumindest eine - vorzugsweise quer zu einer Hauptströmungsrichtung (S) im Entlüftungsraum (17) angeordnete - Abscheidewand (33) aufweist.
(EN)
The invention relates to a rotary internal combustion engine (1) comprising at least one rotor (4) which rotates inside the chamber (3) of a housing (2), said chamber (3) being defined by a trochoidal running surface (5) in a central housing part (2a) and by interspaced lateral running surfaces (6, 7) that are arranged at a right angle to an eccentric shaft (10). An inner housing chamber (15) formed in the region of the eccentric shaft (10) is in fluid connection with a vent channel (18) and a vent chamber (17) is arranged between the inner housing chamber (15) and the vent channel (18) and preferably forms a preliminary oil separator. The vent chamber (17) is arranged in a lateral first housing part (2b) that is directly or indirectly contiguous to the central housing part (2a) in the direction of the axis (10a) of the eccentric shaft (10). The aim of the invention is to devise a compact rotary internal combustion engine which allows an efficient discharge of blow by gases and high oil separation rates. To this end, the vent chamber (17) has at least one separation wall (20) and/or at least one separation wall (33) that is preferably arranged at a right angle to a main direction of flow (S) in the vent chamber (17).
(FR)
Moteur à combustion interne à piston rotatif (1) qui comporte au moins un piston rotatif (4) tournant dans une chambre (3) d'un carter (2), la chambre (3) étant formée par une surface de roulement (5) trochoïdale située dans une partie centrale (2a) du carter et par des surfaces de roulement (6, 7) latérales situées à une certaine distance l'une de l'autre et disposées perpendiculairement par rapport à un arbre à excentrique (10). Un espace de carter (15) interne formé dans la zone de l'arbre d'excentrique (10) se trouve en liaison d'écoulement avec un canal de purge (18), un espace de purge (17) formant de préférence un séparateur d'huile est situé entre l'espace interne de carter (15) et le canal de purge (18), et l'espace de purge (17) est situé dans une première partie de carter (2b) latérale directement ou indirectement adjacente à la partie centrale (2a) du carter en direction de l'axe (10a) de l'arbre à excentrique (10). L'objet de la présente invention est d'assurer une évacuation efficace des gaz de carter avec un taux élevé de séparation d'huile, le moteur à combustion interne à piston rotatif (1) présentant par ailleurs une structure compacte. A cet effet, l'espace de purge (17) comporte au moins une paroi de séparation (20) et/ou au moins une paroi de dépôt (33) située dans l'espace de purge (17), de préférence transversalement par rapport à une direction d'écoulement principale (S)
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