DE112008002364B4 - flywheel housing - Google Patents
flywheel housing Download PDFInfo
- Publication number
- DE112008002364B4 DE112008002364B4 DE112008002364.6T DE112008002364T DE112008002364B4 DE 112008002364 B4 DE112008002364 B4 DE 112008002364B4 DE 112008002364 T DE112008002364 T DE 112008002364T DE 112008002364 B4 DE112008002364 B4 DE 112008002364B4
- Authority
- DE
- Germany
- Prior art keywords
- end wall
- flywheel housing
- crankcase
- flywheel
- damping region
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
- F02F7/008—Sound insulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Schwungradgehäuse (2), welches fest mit einem Kurbelgehäuse (1) einer Brennkraftmaschine verbindbar ist, mit einer kurbelgehäuseseitigen Stirnwand (5), welche eine einem Schwungrad (3) zugewandte innere Oberfläche (5a) und eine dem Kurbelgehäuse (1) zugewandte äußere Oberfläche (5b) aufweist, wobei die innere Oberfläche (5a) der Stirnwand (5) in einem Dämpfungsbereich (6) bombiert ausgebildet und/oder konvex geformt ist, dadurch gekennzeichnet, dass der Dämpfungsbereich (6) ringförmig ausgebildet ist, und dass der Dämpfungsbereich (6) zumindest abschnittsweise torusartig geformt ist.Flywheel housing (2), which is fixedly connectable to a crankcase (1) of an internal combustion engine, with a crankcase-side end wall (5) which has a flywheel (3) facing inner surface (5a) and the crankcase (1) facing the outer surface ( 5 b), wherein the inner surface (5 a) of the end wall (5) in a damping region (6) cambered formed and / or convex, characterized in that the damping region (6) is annular, and in that the damping region (6 ) is at least partially toroidal shaped.
Description
Die Erfindung betrifft ein Schwungradgehäuse, welches fest mit einem Kurbelgehäuse einer Brennkraftmaschine verbindbar ist, mit einer kurbelgehäuseseitigen Stirnwand, welche eine einem Schwungrad zugewandte innere Oberfläche und eine dem Kurbelgehäuse zugewandte äußere Oberfläche aufweist, wobei die innere Oberfläche der Stirnwand in einem Dämpfungsbereich bombiert ausgebildet und/oder konvex geformt ist.The invention relates to a flywheel housing, which is fixedly connectable to a crankcase of an internal combustion engine, with a crankcase-side end wall, which has a flywheel facing inner surface and the crankcase facing outer surface, wherein the inner surface of the end wall formed in a damping area and / / or convex.
Aus der
Aus der
Die
Aufgabe der Erfindung ist es, die Schallabstrahlung bei einem Schwungradgehäuse der eingangs genannten Art zu verringern.The object of the invention is to reduce the sound radiation in a flywheel housing of the type mentioned.
Erfindungsgemäß wird dies dadurch erreicht, dass der Dämpfungsbereich ringförmig ausgebildet ist, und dass der Dämpfungsbereich zumindest abschnittsweise torusartig geformt. istAccording to the invention this is achieved in that the damping region is annular, and that the damping region formed at least partially toroidal. is
Durch die konvexe bzw. bombierte innere Oberfläche des Schwungradgehäuses werden durch das rotierende Schwungrad erzeugte Schallwellen ungleichmäßig reflektiert, wodurch Verstärkungseffekte durch das Schwungradgehäuse ausgeschlossen werden.Due to the convex or cambered inner surface of the flywheel housing sound waves generated by the rotating flywheel are reflected unevenly, whereby amplification effects are excluded by the flywheel housing.
Zur Einsparung von Material kann die Stirnwand eine gleichmäßige Wandstärke aufweisen, wobei die äußere Oberfläche in dem Dämpfungsbereich konkav geformt sein kann.To save material, the end wall may have a uniform wall thickness, wherein the outer surface may be concave in the damping region.
Zur Erhöhung der Festigkeit der Stirnwand ist es vorteilhaft, wenn diese Verstärkungsrippen aufweist, wobei vorzugsweise die Verstärkungsrippen eine nach außen offene zellenartige Oberflächenstruktur mit zumindest abschnittsweise geschlossenen Umfangslinien ausbilden.To increase the strength of the end wall, it is advantageous if it has reinforcing ribs, wherein preferably the reinforcing ribs form an outwardly open cell-like surface structure with at least partially closed circumferential lines.
Der maximale Überhang der inneren Oberfläche der Stirnwand - gemessen zwischen der inneren Oberfläche im Dämpfungsbereich und der inneren Oberfläche im Randbereich der Stirnwand - zum Schwungrad hin sollte größer sein als die Wandstärke der Stirnwand und vorzugsweise mindestens doppelt so groß ist wie die Wandstärke der Stirnwand.The maximum overhang of the inner surface of the end wall - measured between the inner surface in the damping region and the inner surface in the edge region of the end wall - towards the flywheel should be greater than the wall thickness of the end wall and preferably at least twice as large as the wall thickness of the end wall.
Die Erfindung wird im Folgenden anhand der Figuren näher erläutert. Es zeigen:
-
1 ein Kurbelgehäuse mit einem erfindungsgemäßen Schwungradgehäuse in einem Längsschnitt; -
2 das Schwungradgehäuse in einer kurbelgehäuseseitig geschnittenen Schrägansicht; -
3 das Schwungradgehäuse in einer schwungradseitig geschnittenen Schrägansicht; -
4 das Schwungradgehäuse in einer weiteren kurbelgehäuseseitigen Schrägansicht; und -
5 das Schwungradgehäuse in einer weiteren schwungradseitigen Schrägansicht.
-
1 a crankcase with a flywheel housing according to the invention in a longitudinal section; -
2 the flywheel housing in a crankcase side cut oblique view; -
3 the flywheel housing in a flywheel side cut oblique view; -
4 the flywheel housing in a further crankcase side oblique view; and -
5 the flywheel housing in another flywheel side oblique view.
Das Schwungradgehäuse
Die Größe der Bombierung B der Stirnwand
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1391/2007 | 2007-09-06 | ||
AT13912007A AT503764B1 (en) | 2007-09-06 | 2007-09-06 | FLYWHEEL HOUSING |
PCT/EP2008/058739 WO2009033840A1 (en) | 2007-09-06 | 2008-07-07 | Flywheel housing |
Publications (2)
Publication Number | Publication Date |
---|---|
DE112008002364A5 DE112008002364A5 (en) | 2010-07-15 |
DE112008002364B4 true DE112008002364B4 (en) | 2019-04-11 |
Family
ID=38777813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112008002364.6T Expired - Fee Related DE112008002364B4 (en) | 2007-09-06 | 2008-07-07 | flywheel housing |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT503764B1 (en) |
DE (1) | DE112008002364B4 (en) |
WO (1) | WO2009033840A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4480608A (en) * | 1981-03-31 | 1984-11-06 | Steyr-Daimler-Puch Aktiengesellschaft | Reciprocating internal combustion engine and support assembly |
DE3532599A1 (en) * | 1984-09-21 | 1986-04-03 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH, Prof. Dr.Dr.h.c. Hans List, Graz | Internal combustion engine |
DE19930633A1 (en) * | 1998-07-02 | 2000-02-10 | Caterpillar Inc | Flywheel housing for use with IC engine |
AT501340A1 (en) * | 2005-02-10 | 2006-08-15 | Avl List Gmbh | Cylinder-crankcase for e.g. diesel engine of lightweight construction, comprises cast-in section of light metal oxide particle-reinforced, sintered light alloy |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2804833A1 (en) * | 1977-02-24 | 1978-08-31 | List Hans | QUIET COMBUSTION ENGINE |
AT374251B (en) * | 1977-11-22 | 1984-04-10 | List Hans | INTERNAL COMBUSTION ENGINE WITH AN ENGINE BRACKET |
AT394758B (en) * | 1982-10-12 | 1992-06-25 | List Hans | INTERNAL COMBUSTION ENGINE |
JP3216010B2 (en) * | 1997-08-05 | 2001-10-09 | 株式会社クボタ | Engine with flywheel housing |
-
2007
- 2007-09-06 AT AT13912007A patent/AT503764B1/en not_active IP Right Cessation
-
2008
- 2008-07-07 WO PCT/EP2008/058739 patent/WO2009033840A1/en active Application Filing
- 2008-07-07 DE DE112008002364.6T patent/DE112008002364B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4480608A (en) * | 1981-03-31 | 1984-11-06 | Steyr-Daimler-Puch Aktiengesellschaft | Reciprocating internal combustion engine and support assembly |
DE3532599A1 (en) * | 1984-09-21 | 1986-04-03 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH, Prof. Dr.Dr.h.c. Hans List, Graz | Internal combustion engine |
DE19930633A1 (en) * | 1998-07-02 | 2000-02-10 | Caterpillar Inc | Flywheel housing for use with IC engine |
AT501340A1 (en) * | 2005-02-10 | 2006-08-15 | Avl List Gmbh | Cylinder-crankcase for e.g. diesel engine of lightweight construction, comprises cast-in section of light metal oxide particle-reinforced, sintered light alloy |
Also Published As
Publication number | Publication date |
---|---|
WO2009033840A1 (en) | 2009-03-19 |
AT503764A2 (en) | 2007-12-15 |
AT503764A3 (en) | 2008-04-15 |
AT503764B1 (en) | 2009-01-15 |
DE112008002364A5 (en) | 2010-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |