WO2000057047A1 - Formteil aus leichtmetall, insbesondere kurbelgehäuse für eine verbrennungsmotor - Google Patents
Formteil aus leichtmetall, insbesondere kurbelgehäuse für eine verbrennungsmotor Download PDFInfo
- Publication number
- WO2000057047A1 WO2000057047A1 PCT/AT2000/000047 AT0000047W WO0057047A1 WO 2000057047 A1 WO2000057047 A1 WO 2000057047A1 AT 0000047 W AT0000047 W AT 0000047W WO 0057047 A1 WO0057047 A1 WO 0057047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light metal
- sintered body
- thermal expansion
- combustion engine
- internal combustion
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/02—Crankshaft bearings
-
- 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
- F02F7/0043—Arrangements of mechanical drive elements
- F02F7/0053—Crankshaft bearings fitted in the crankcase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
Definitions
- Molded part made of light metal, in particular crankcase for an internal combustion engine
- the invention relates to a molded part made of light metal, in particular Kurbeigehause for an internal combustion engine, with receiving openings for fastening screws, with the help of which compressive stresses can be exerted on the molded body in a light metal area
- the gray cast iron inserts forming a significant part of the bearing walls and not the subsequent light metal areas of the bearing walls determine the expansion behavior, so that largely in the area of the crankshaft bearings and their screw connections Uniform thermal expansion ratios are to be expected, which has an advantageous effect on the bearing play or the strength of the screw connection.
- a disadvantage of these known Kurbeigehausen is, among other things, that because of the gray cast iron insert absorbing the screw forces and the associated geometrical dimensions of these inserts, the weight advantage of the light metal walls is considerable Part is lifted
- the invention is therefore based on the object, a molded part made of light metal, in particular a Kurbeigehause for an internal combustion engine, the type described so that despite the different thermal expansion behavior of the light metal and the fastening screws advantageous fastening conditions can be created, under one Extensive use of the weight advantages of the light metal
- the invention achieves the stated object in that, in the light metal area exposed to the compressive stresses, at least one open-pore sintered body is at least poured into the pores of a surface layer while the light metal is infiltrated, and in that the sintered body, which has a lower thermal expansion coefficient than the light metal, at least together with the infiltrated light metal has a strength at least corresponding to the light metal strength
- a sintered body, the thermal expansion coefficient of which is smaller than that of the light metal, is able to change the thermal expansion behavior of the light metal, provided that the sintered body is connected to the light metal in a shear-resistant manner and the composite has a strength at least corresponding to the light metal strength, so that the light metal is prevented from free thermal expansion in the area of the sintered body.
- the shear-resistant connection between the light metal and the sintered body is achieved in that when the molded part is cast, the light metal melt preferably infiltrates at least into the pores of a surface layer of the sintered body in a die-casting process Molding Build up sufficiently high shear stresses in the transition area from the light metal to the sintered body to prevent a relative movement between the sintered body and the light metal.
- the sintered bodies which can be used in accordance with the respective load requirements of the molded part, can have comparatively small dimensions, so that those connected to these sintered bodies Weight increase remains limited, especially since the required porosity of the sintered body leads to a reduction in weight in comparison to non-sintered inserts.
- the sintered body without infiltrated light metal may have a lower strength than the light metal and still meet the strength requirements with regard to a limitation of the free expandability of the light metal, if the sintered body infiltrated with light metal has the required strength activity
- the sintered body in the core area can have a higher density than in the surface area.
- the infiltration of the light metal into the Pores of the surface layer are lightened and, on the other hand, a higher strength of the sintered bodies is achieved.
- the strength of the cast-in sintered bodies can also be improved by reinforcements
- FIG. 1 shows the housing lower part of a spa house according to the invention in sections in a simplified diagram
- FIG. 2 shows this housing lower part in a cross section through a bearing wall
- the illustrated lower housing part of a Kurbeigehaus made of light metal has in a conventional manner the long running housing outer walls 1 and these housing outer walls 1 connecting, transversely aligned bearing walls 2, which start from the separating surface 3 to the housing upper part and have cross-sectional semicircular receptacles 4
- receiving openings 5 for fastening screws 6 are provided in the bearing walls 2, via which the bearing forces are transferred into the bearing walls 2.
- sintered bodies 7 are cast into the light metal of the bearing walls which have sufficient porosity to allow infiltration of the light metal into the pores of at least one surface layer.
- This light metal infiltration of the sintered bodies 7 is made of light due to the hatching of the bearing walls 2 extending into the sintered bodies 7 tmetall indicated in Fig. 2
- the sintered body 7 can be provided with recesses 8
- the bearing walls 2 made of light metal are therefore the same at least in the area of the sintered bodies 7 to their thermal expansion behavior if sufficient strength of the sintered bodies 7 is ensured. This means that, for example, if the thermal expansion behavior of the bearing walls 2 is adapted to the thermal expansion behavior of the fastening screws 6, the sintered bodies 7 correspond to Adequate thermal expansion behavior must be in order to limit the thermal expansion behavior of the bearing walls 2
- the sintered bodies can contain 7 alloying elements, for example nickel, which react exothermically with the light metal and thus reduce the viscosity of the melt.
- the sintered bodies can also have a reinforcement that presses together with the sintered powder is and consists for example of a wire mesh or reinforcing fibers
- the invention is of course not limited to the exemplary embodiment shown and can be used wherever forces have to be introduced via fastening screws into a molded part made of light metal under different heat loads.
- the sintered bodies 7 can, in addition to the receiving openings 5 for the fastening screws 6 must be arranged, but also be penetrated by the fastening screws 6. The only thing that matters is that the light metal region of the molded body, which is held under pressure by the fastening screws 6, is prevented from its free thermal expansion behavior
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU31335/00A AU3133500A (en) | 1999-03-19 | 2000-02-23 | Light metal molded part, especially a crankcase for an internal combustion engine |
US10/069,865 US6675763B1 (en) | 1999-03-19 | 2000-02-23 | Light metal molded part, especially a crankcase for an internal combustion engine |
DE50012531T DE50012531D1 (de) | 1999-03-19 | 2000-02-23 | Formteil aus leichtmetall, insbesondere kurbelgehäuse für einen verbrennungsmotor |
EP00908813A EP1185776B1 (de) | 1999-03-19 | 2000-02-23 | Formteil aus leichtmetall, insbesondere kurbelgehäuse für einen verbrennungsmotor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0049799A AT408260B (de) | 1999-03-19 | 1999-03-19 | Formteil aus leichtmetall, insbesondere kurbelgehäuse für einen verbrennungsmotor |
ATA497/99 | 1999-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000057047A1 true WO2000057047A1 (de) | 2000-09-28 |
Family
ID=3492185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2000/000047 WO2000057047A1 (de) | 1999-03-19 | 2000-02-23 | Formteil aus leichtmetall, insbesondere kurbelgehäuse für eine verbrennungsmotor |
Country Status (7)
Country | Link |
---|---|
US (1) | US6675763B1 (de) |
EP (1) | EP1185776B1 (de) |
AT (1) | AT408260B (de) |
AU (1) | AU3133500A (de) |
DE (1) | DE50012531D1 (de) |
ES (1) | ES2263455T3 (de) |
WO (1) | WO2000057047A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10121861A1 (de) * | 2001-05-05 | 2002-11-14 | Vaw Ver Aluminium Werke Ag | Aus Leichtmetallwerkstoff gegossenes Motorelement und Verstärkungselement |
FR2965852A1 (fr) * | 2010-10-11 | 2012-04-13 | Peugeot Citroen Automobiles Sa | Bloc-moteur avec trou d'event forme par un insert de moulage, groupe motopropulseur et vehicule correspondant, procede de coulage du bloc-moteur |
DE10260487B4 (de) * | 2002-12-21 | 2015-02-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Einlegeteile für einen Kurbelwellenlagerverbund |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004028253A (ja) * | 2002-06-27 | 2004-01-29 | Suzuki Motor Corp | クランク軸支持装置 |
US20070283918A1 (en) * | 2006-06-07 | 2007-12-13 | Ford Global Technologies, Llc | Combination Bearing Beam and Crankshaft-Interactive Oil Management Device for Internal Combustion Engine |
US7814879B2 (en) * | 2008-04-23 | 2010-10-19 | Techtronic Outdoor Products Technology Limited | Monolithic block and valve train for a four-stroke engine |
US8770170B2 (en) * | 2012-01-04 | 2014-07-08 | GM Global Technology Operations LLC | Bedplate assembly and method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0145393A2 (de) * | 1983-12-10 | 1985-06-19 | Ae Plc | Verstärkung der Motorblöcke |
EP0363159A2 (de) * | 1988-10-05 | 1990-04-11 | Ford Motor Company Limited | Verfahren zur dimensionellen Stabilisierung einer Zwischenschicht zwischen Metallen ungleicher Art in einer Brennkraftmaschine |
US5203854A (en) | 1991-02-06 | 1993-04-20 | Ab Volvo | Main bearing cap for internal combustion engines |
US5449421A (en) * | 1988-03-09 | 1995-09-12 | Toyota Jidosha Kabushiki Kaisha | Aluminum alloy composite material with intermetallic compound finely dispersed in matrix among reinforcing elements |
WO1995031637A1 (en) * | 1994-05-17 | 1995-11-23 | Zenith Sintered Products, Inc. | Bearing support insert |
US5816710A (en) * | 1997-07-01 | 1998-10-06 | Cummins Engine Company, Inc. | Engine block bearing saddle reinforcing inserts |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3425969A1 (de) * | 1984-07-14 | 1986-01-16 | Kolbenschmidt AG, 7107 Neckarsulm | Verbundlager-werkstoff |
US4905642A (en) * | 1984-11-09 | 1990-03-06 | Honda Giken Kogyo Kabushiki Kaisha | Siamese-type cylinder block blank and apparatus for casting the same |
JPH03229958A (ja) * | 1989-10-25 | 1991-10-11 | Fuji Heavy Ind Ltd | 内燃機関用クランク軸受部 |
IT1270244B (it) * | 1993-07-23 | 1997-04-29 | Porsche Ag | Accoppiamento a viti della testa cilindri di un motore a combustione interna |
DE9319055U1 (de) * | 1993-12-11 | 1995-04-13 | Fev Motorentech Gmbh & Co Kg | Kolbenmaschine, insbesondere Kolbenbrennkraftmaschine mit versteiftem Motorblock mittels unterbrochener Rippen |
DE19532326C1 (de) * | 1995-09-01 | 1997-01-02 | Daimler Benz Ag | Kurbelgehäuse |
US5564837A (en) * | 1995-10-03 | 1996-10-15 | Ford Motor Company | Main bearing structure for internal combustion engine |
DE19810464C1 (de) * | 1998-03-11 | 1999-06-02 | Daimler Chrysler Ag | Kurbelgehäuse für eine Brennkraftmaschine |
DE19846387C2 (de) * | 1998-10-08 | 2000-08-24 | Daimler Chrysler Ag | Kurbelwellenlager für eine Brennkraftmaschine |
-
1999
- 1999-03-19 AT AT0049799A patent/AT408260B/de not_active IP Right Cessation
-
2000
- 2000-02-23 ES ES00908813T patent/ES2263455T3/es not_active Expired - Lifetime
- 2000-02-23 WO PCT/AT2000/000047 patent/WO2000057047A1/de active IP Right Grant
- 2000-02-23 DE DE50012531T patent/DE50012531D1/de not_active Expired - Lifetime
- 2000-02-23 AU AU31335/00A patent/AU3133500A/en not_active Abandoned
- 2000-02-23 US US10/069,865 patent/US6675763B1/en not_active Expired - Lifetime
- 2000-02-23 EP EP00908813A patent/EP1185776B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0145393A2 (de) * | 1983-12-10 | 1985-06-19 | Ae Plc | Verstärkung der Motorblöcke |
US5449421A (en) * | 1988-03-09 | 1995-09-12 | Toyota Jidosha Kabushiki Kaisha | Aluminum alloy composite material with intermetallic compound finely dispersed in matrix among reinforcing elements |
EP0363159A2 (de) * | 1988-10-05 | 1990-04-11 | Ford Motor Company Limited | Verfahren zur dimensionellen Stabilisierung einer Zwischenschicht zwischen Metallen ungleicher Art in einer Brennkraftmaschine |
US5203854A (en) | 1991-02-06 | 1993-04-20 | Ab Volvo | Main bearing cap for internal combustion engines |
WO1995031637A1 (en) * | 1994-05-17 | 1995-11-23 | Zenith Sintered Products, Inc. | Bearing support insert |
US5816710A (en) * | 1997-07-01 | 1998-10-06 | Cummins Engine Company, Inc. | Engine block bearing saddle reinforcing inserts |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10121861A1 (de) * | 2001-05-05 | 2002-11-14 | Vaw Ver Aluminium Werke Ag | Aus Leichtmetallwerkstoff gegossenes Motorelement und Verstärkungselement |
DE10121861B4 (de) * | 2001-05-05 | 2005-02-17 | Hydro Aluminium Deutschland Gmbh | Aus Leichtmetallwerkstoff gegossenes Motorelement und Verstärkungselement |
DE10260487B4 (de) * | 2002-12-21 | 2015-02-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Einlegeteile für einen Kurbelwellenlagerverbund |
FR2965852A1 (fr) * | 2010-10-11 | 2012-04-13 | Peugeot Citroen Automobiles Sa | Bloc-moteur avec trou d'event forme par un insert de moulage, groupe motopropulseur et vehicule correspondant, procede de coulage du bloc-moteur |
Also Published As
Publication number | Publication date |
---|---|
DE50012531D1 (de) | 2006-05-18 |
ATA49799A (de) | 2001-02-15 |
AT408260B (de) | 2001-10-25 |
AU3133500A (en) | 2000-10-09 |
EP1185776A1 (de) | 2002-03-13 |
EP1185776B1 (de) | 2006-04-05 |
US6675763B1 (en) | 2004-01-13 |
ES2263455T3 (es) | 2006-12-16 |
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