EP0613524A1 - Zylinderblock für eine brennkraftmaschine. - Google Patents
Zylinderblock für eine brennkraftmaschine.Info
- Publication number
- EP0613524A1 EP0613524A1 EP93914713A EP93914713A EP0613524A1 EP 0613524 A1 EP0613524 A1 EP 0613524A1 EP 93914713 A EP93914713 A EP 93914713A EP 93914713 A EP93914713 A EP 93914713A EP 0613524 A1 EP0613524 A1 EP 0613524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder block
- cylinders
- cylinder
- block according
- rib
- 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.)
- Granted
Links
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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
-
- 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
- F02F7/0002—Cylinder arrangements
- F02F7/0007—Crankcases of engines with cylinders in line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1816—Number of cylinders four
Definitions
- the invention relates to a cylinder block for an internal combustion engine, with at least two adjoining cylinders which are enclosed by a water jacket and which are supported on the upper part of the piston housing.
- piston engines in particular piston engines for passenger vehicles, the aim is to reduce the weight as much as possible. It was therefore decided to manufacture the cylinder blocks from light metal, which, however, meant that two materials had to be used, since the liners were still to be made from corresponding gray cast iron qualities.
- the invention is based on the object of designing a cylinder block of the type mentioned at the outset as a light block with high structural strength which can be produced from gray cast iron.
- This object is achieved in that the outside of the water jacket in the parting plane between two cylinders has a reinforcing rib which is U-shaped in cross section and continues in the region of the crankcase upper part.
- This configuration has the effect that the forces acting between the cylinder head and the crankshaft bearing and to be absorbed by the cylinder block can be absorbed primarily via these reinforcing ribs, so that all other wall parts can be made noticeably thinner.
- the material weight to be applied for the U-shaped reinforcing ribs is less than that by reducing the wall thicknesses of the crankcase upper part and ; of the casing between the upper part of the crankcase and the water jacket. It is advantageous here that the inside of the U-profile extends at the upper end in an extension of the bores for the cylinder head screws. In the case of in-line engines, the inside of the U-profile ends at the lower end in an extension of the holes for the fastening screws of the crankshaft bearing. For V engines, the U-profile ends in the area of the crankshaft bearing. Since the cylinder head screws, on the one hand, and the area of the crankshaft bearing, on the other hand, primarily have to absorb the forces acting during operation, there is a defined, linear flow of force between
- Cylinder head and crankshaft bearing which enables a strength calculation with sufficient accuracy, so that when dimensioning the other largely flat and serving parts of the cylinder block, the wall thickness is practically only to be taken into account with a view to proper pourability.
- the reinforcing ribs each run on the top of the bearing web for the crankshaft bearing up to the foot area of the cylinder block.
- a jacket rib adjoining the reinforcing rib of the foot region.
- the jacket rib also expediently has a profile which is U-shaped in cross section.
- At least one of the reinforcing ribs of U-shaped cross section, at least in the area of the adjacent cylinders, is formed by a cover as a closed channel, which has an inlet at the upper end in the area of the connection plane for the cylinder head - Opening and is seen at the lower end with an outlet opening and forms an oil return channel.
- the oil return channel continues in the area below the cylinder as a pre-cast channel on the housing jacket. It is particularly advantageous here if the jacket rib, which is U-shaped in cross section and is provided on the housing jacket for the purposes of stiffening and is used in the same way as the reinforcement rib in the cylinder area.
- 1 is a plan view of a four-cylinder in-line engine
- Fig. 3 shows a longitudinal section. the line
- Fig. 4 shows a cross section. the line
- Fig. 5 shows a cross section. the line
- Fig. 6 shows a horizontal section. the line
- FIG. 7 is a plan view of a four-cylinder in-line engine with a cast-on oil return channel
- FIG. 8 shows a vertical section through the cylinder block according to FIG. 7 along the line VIII-VIII in Fig. 7,
- Fig. 9 shows a horizontal section. the line
- the cylinder block 1 shown in plan view in FIG. 1 is made from a gray cast iron quality used for cylinder housings, for example compact graphite cast iron (CGG).
- CGG compact graphite cast iron
- the cylinders 2 are integrally connected to the cylinder block 1 and are supported together with the water jacket 3 on the bearing webs 4 for the crankshaft bearings.
- the bearing webs 4 run obliquely outwards into the foot v
- a housing jacket 6 is provided which extends over the entire length of the cylinder block and extends from the foot area 5 to the lower end of the water jacket (FIG. 4).
- This reinforcing rib 7 is, as can be seen from the partial horizontal section shown in FIG. 1 as a cut-out according to line II in FIG. 5, U-shaped in cross section.
- the arrangement is such that the inside of the U- Profiles at the upper end in an extension of the bores 8 for the cylinder head screws and at the lower end in an extension of the bores 9 for the fastening screws of the crankshaft bearing, so that the reinforcing rib with its U-shaped cross-section forms a rectilinearly extending tension belt through which the forces acting between the cylinder head and the crankshaft bearing can be absorbed directly, and the wall thickness of the housing shell 6 can be reduced accordingly.
- the bearing web 4 itself is designed as a U-shaped profile, the profile opening upwards.
- the connecting web 10 between the two outer bearing webs 4 is designed as an upwardly open U-profile, as can also be seen from FIGS. 4 and 5.
- the housing jacket 6 in the region of the division plane with a reinforcing rib 11, as is indicated by dashed lines in FIG. 5 for the right side of the housing jacket.
- This can be a simple but also a rib with a U-shaped cross section.
- FIG. 7 again shows a top view of a cylinder block 12 for a four-cylinder in-line engine, which is produced from a gray cast iron quality used for cylinder housings, for example with compact graphite cast iron (CGG).
- CGG compact graphite cast iron
- the structure corresponds essentially to the structure of the cylinder block described with reference to FIG. 1, so that reference can be made to this.
- the same reference numerals are used for the same components.
- These reinforcing ribs 7 are, as already according to the embodiment according to. Fig. 1 and the associated further drawings described, U-shaped in cross section.
- the reinforcing ribs 7 are designed such that they extend at the upper end in their extension into the bores 8 for the cylinder head screws.
- the reinforcing rib 7.1 in the central region of the cylinder block 12 is provided with a cover 13, so that this reinforcing rib 7.1 is designed as a closed channel.
- the cover 13 is around the extension 14 for the associated bore 8 to the outside guided around so that an inlet opening 16 lying in the connection plane 15 for the cylinder head is formed.
- this closed channel formed by the cover 13 initially extends over the vertical longitudinal region of the cylinders, as can be seen in FIG. 8.
- the channel then continues on the inside of the housing jacket 6, the reinforcement rib 11 present on the inside of the housing jacket in this area being used for this purpose, which at least at this point has a U- has a shaped cross section.
- a corresponding opening, which forms an outlet opening 19 is then provided in the foot region 5 in a manner similar to that in the region of the connection level 15. In this way, a continuous channel is available through which the oil accumulating in the cylinder head area can be discharged.
- this oil return channel it is not necessary that 6 reinforcing ribs are provided in the housing jacket. It is also possible to provide here only for the purpose of forming a return line as a return channel correspondingly cast onto the housing shell 6, whereby this oil return channel does not necessarily have to run on the inside of the housing shell, as shown in FIG. 8, but also in the Connection with the bypass of the pressure oil bore 17 extending in the longitudinal direction through the entire cylinder block on the outside of the housing shell 6 can run.
- the U-shaped reinforcing ribs 7 also extend in the region of the bearing web 4 to the foot part 5, there is a modification of the above-described NEN exemplary embodiment. 7 and 8 also the possibility of also providing this lower region with a corresponding cover and thus forming it as an oil return duct,
- FIG. 9 shows the configuration of the reinforcing ribs 7 on the one hand and the configuration of the central reinforcing rib 7.1 for forming an oil return channel on the other hand in section.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4231284A DE4231284A1 (de) | 1992-09-18 | 1992-09-18 | Zylinderblock für eine Brennkraftmaschine |
DE4231284 | 1992-09-18 | ||
PCT/EP1993/001613 WO1994007017A1 (de) | 1992-09-18 | 1993-06-24 | Zylinderblock für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0613524A1 true EP0613524A1 (de) | 1994-09-07 |
EP0613524B1 EP0613524B1 (de) | 1996-08-21 |
Family
ID=6468279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93914713A Expired - Lifetime EP0613524B1 (de) | 1992-09-18 | 1993-06-24 | Zylinderblock für eine brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5501189A (de) |
EP (1) | EP0613524B1 (de) |
AT (1) | ATE141668T1 (de) |
DE (2) | DE4231284A1 (de) |
ES (1) | ES2091620T3 (de) |
WO (1) | WO1994007017A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9412637U1 (de) | 1994-08-05 | 1995-11-30 | Bruehl Eisenwerk | Zylinderblock für eine Brennkraftmaschine mit einem Wassermantel aus Aluminium |
GB9425718D0 (en) * | 1994-12-20 | 1995-02-22 | Rover Group | A block structure for an internal combustion engine |
DE19540763C1 (de) * | 1995-11-02 | 1996-12-19 | Volkswagen Ag | Gehäuse für eine Hubkolben-Brennkraftmaschine |
US5852992A (en) * | 1997-11-24 | 1998-12-29 | Ford Global Technologies, Inc. | Internal combuston engine having separated cylinder head oil drains and crankcase ventilation passages |
JP3999340B2 (ja) * | 1997-12-10 | 2007-10-31 | ヤマハ発動機株式会社 | シリンダブロック構造 |
DE19818593C2 (de) * | 1998-04-25 | 2000-03-30 | Daimler Chrysler Ag | Kurbelgehäuse einer Brennkraftmaschine |
GB2338514A (en) * | 1998-06-20 | 1999-12-22 | Cummins Engine Co Ltd | I.c. engine cylinder block with optimizes stiffness |
JP2000136752A (ja) * | 1998-10-31 | 2000-05-16 | Honda Motor Co Ltd | 多気筒エンジンのクランクケース |
DE20314367U1 (de) * | 2002-09-16 | 2004-03-11 | Perkins Engines Co. Ltd. | Zylinderblock für einen Verbrennungsmotor mit einer lokal verdickten Endwand |
US6899064B2 (en) * | 2002-09-16 | 2005-05-31 | Perkins Engines Company Limited | Cylinder block for an internal combustion engine having a tapered coolant jacket |
JP4258339B2 (ja) * | 2003-10-10 | 2009-04-30 | 日産自動車株式会社 | 内燃機関のシリンダブロック |
DE102004061684B4 (de) * | 2004-12-22 | 2011-09-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kurbelwellenlager für eine Brennkraftmaschine |
US8256092B1 (en) | 2008-01-30 | 2012-09-04 | Makino Inc. | Method for helical boring |
CN102705094A (zh) * | 2012-07-11 | 2012-10-03 | 无锡华源凯马发动机有限公司 | 改进的铝合金单缸斜置式风冷柴油机机体 |
US9086031B2 (en) | 2013-03-12 | 2015-07-21 | Ford Global Technologies, Llc | Cracked cap bulkhead insert |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3173407A (en) * | 1961-08-17 | 1965-03-16 | Kaiser Jeep Corp | Aluminum engine |
DE2621348C2 (de) * | 1976-05-14 | 1984-05-30 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Zylinder mit trockener dünnwandiger Zylinderlaufbuchse für Brennkraftmaschinen |
GB2073321B (en) * | 1979-03-21 | 1983-06-08 | Cummins Engine Co Inc | Engine cylinder block |
US4369739A (en) * | 1979-05-07 | 1983-01-25 | Nissan Motor Company, Limited | Structure of a cylinder assembly for an internal combustion engine |
JPS57179355A (en) * | 1981-04-28 | 1982-11-04 | Nissan Motor Co Ltd | Cylinder block |
DE3300924A1 (de) * | 1983-01-13 | 1984-07-19 | Volkswagenwerk Ag, 3180 Wolfsburg | Vorrichtung zur kuehlung von zylinderstegen |
JPS6013957A (ja) * | 1983-07-01 | 1985-01-24 | Nissan Motor Co Ltd | 内燃機関のシリンダブロツク |
JPS6049240U (ja) * | 1983-09-13 | 1985-04-06 | 日産自動車株式会社 | 沸騰冷却式内燃機関のシリンダブロツク |
DE3444838C2 (de) * | 1984-12-08 | 1986-10-30 | Bayerische Motoren Werke AG, 8000 München | Gehäuse für Hubkolben-Brennkraftmaschine, insbesondere Motorblock |
US4771745A (en) * | 1986-03-22 | 1988-09-20 | Mitsubishi Jidosha Kogyo Kabushiki Kaishi | Structure of internal combustion engine |
FR2664654B1 (fr) * | 1990-07-11 | 1992-11-06 | Peugeot | Carter cylindres de moteur avec circuit d'evacuation des gaz du carter et de recyclage d'huile. |
DE4027242A1 (de) * | 1990-08-29 | 1992-03-05 | Winter Fritz Eisengiesserei | Zylinderblock fuer kraftfahrzeugmotoren |
US5148742A (en) * | 1991-01-10 | 1992-09-22 | Belgium Tool And Die Company | Can coater with improved deactivator responsive to absence of a workpiece |
US5188071A (en) * | 1992-01-27 | 1993-02-23 | Hyundai Motor Company | Cylinder block structure |
-
1992
- 1992-09-18 DE DE4231284A patent/DE4231284A1/de not_active Withdrawn
-
1993
- 1993-06-24 AT AT93914713T patent/ATE141668T1/de not_active IP Right Cessation
- 1993-06-24 ES ES93914713T patent/ES2091620T3/es not_active Expired - Lifetime
- 1993-06-24 WO PCT/EP1993/001613 patent/WO1994007017A1/de active IP Right Grant
- 1993-06-24 EP EP93914713A patent/EP0613524B1/de not_active Expired - Lifetime
- 1993-06-24 US US08/244,032 patent/US5501189A/en not_active Expired - Fee Related
- 1993-06-24 DE DE59303503T patent/DE59303503D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9407017A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1994007017A1 (de) | 1994-03-31 |
ES2091620T3 (es) | 1996-11-01 |
ATE141668T1 (de) | 1996-09-15 |
DE59303503D1 (de) | 1996-09-26 |
EP0613524B1 (de) | 1996-08-21 |
DE4231284A1 (de) | 1994-03-24 |
US5501189A (en) | 1996-03-26 |
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