WO1997033084A1 - Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren - Google Patents
Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren Download PDFInfo
- Publication number
- WO1997033084A1 WO1997033084A1 PCT/EP1997/000696 EP9700696W WO9733084A1 WO 1997033084 A1 WO1997033084 A1 WO 1997033084A1 EP 9700696 W EP9700696 W EP 9700696W WO 9733084 A1 WO9733084 A1 WO 9733084A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- flange
- hollow
- machine housing
- crankshaft
- Prior art date
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- 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
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
-
- 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
- F02F7/0012—Crankcases of V-engines
Definitions
- the invention relates to a machine housing for reciprocating engines of the type described in the preamble of claim 1.
- the high-stress engine block which is essentially formed from the cylinders with directly or centrally formed crankshaft bearings, preferably from iron material, and the less stressed housing walls are made from a lighter or particularly thin-walled material to train.
- a machine housing is already known from EP-A 0 554 575, previously published in DE-U 94 12 637, for a liquid-cooled internal combustion engine, in which an engine block formed from gray cast iron is also cast into a light metal housing.
- cylinders arranged in series are integrally arranged adjacent to one another. arranges and supports arranged, solidly designed storage chairs in the connection areas via spaced flat webs. Flat webs and storage chairs are integrally integrated in the transverse walls connected to them when poured into the light metal housing.
- This support for the crankshaft bearings which is designed for reasons of strength and requires a lot of material, against a crankcase housing wall acts as the light metal housing acoustically stimulating structure-borne noise bridge.
- an engine block with integrally formed cylinder heads is known from Japanese Patent Laid-Open 4-121 443 for a liquid-cooled internal combustion engine.
- This design known as the "monoblock”
- the monoblock comprises a base plate formed at the lower end of the cylinder liners, on which on the one hand a casing surrounding the monoblock is detachably fastened and on the other hand massive crankshaft bearing seats are arranged, the bearing covers of which are arranged over longitudinal webs in a storage frame designed disadvantageously in terms of material.
- the invention has for its object to show for a lightweight machine housing of the type described in the preamble of claim 1 of a lightweight engine block with cylinders of high, by the cylinders significantly increased dimensional stability.
- This object is achieved with claim 1 in that the flange plate is offset relative to the cylinder from its lower end to the upper end with its center of gravity seen on the end face at a distance on this side of the center plane of the bearing of the crankshaft bearing which is at least one the greatest possible distance of the centroid of a profile of the reinforcing element of the bearing frame on the other side of the bearing center plane ent ⁇ speaks, wherein the crankshaft bearings are connected via struts to the flange plate.
- the basic idea of the invention is to arrange the engine block devices arranged in the longitudinal direction of the machine as far as possible relative to the axis of rotation of the crankshaft in a group to achieve a high moment of inertia and thus a high section modulus, the effective distances required for this, on the one hand, via the design of the bearing frame with at least one stiffening element provided particularly deeply underneath the crankshaft and, on the other hand, by means of a flange plate which is advantageously arranged so as to be displaced far away from the crankshaft axis of rotation in the direction of the vertical axis of the cylinder or cylinders.
- the cylinder is omitted as an element which conveys essential strength, as a result of which the cylinder or cylinders can advantageously be made thin-walled.
- piston stroke and cylinder diameter can be determined with the invention without taking into account the structural strength of the engine block, with the advantage that large-volume, powerful reciprocating piston engines can also be designed to be of relatively low construction.
- the invention offers the advantage of a relatively thin-walled design of these devices (flange plate, stiffening elements) with high strength with the free choice of the largest possible distances of longitudinal machine-oriented devices from the plane of the crankshaft axis of rotation.
- FIG. 1 shows an engine block in a perspective view with a casing partly shown for a V-engine
- Figure 2 engine block and casing in cross section along the line 2-2 in Figure 1.
- a machine housing 1 for a V-engine, liquid-cooled reciprocating piston internal combustion engine 2 comprises an engine block 3 and, in contrast, separate casing 4 formed integrally from housing walls and made of a lighter material than that of the engine block 3.
- the engine block 3 is equipped with flange plates 5, each of which is connected on the one hand to cylinders 6 and on the other hand to split crankshaft bearings 7, the bearing caps 8 of which are arranged in a bearing frame 9 with machine-oriented stiffening elements 10.
- the flange plates 5 are offset according to the invention relative to the cylinders 6 from their lower ends to their upper ends with their respective surface foci seen on the end face at intervals on this side of the bearing center plane 11 of the crankshafts - Bearings 7 arranged, these distances at least the greatest possible distances between the focal points of the profiles of the reinforcement Fung elements 10 of the bearing frame on the other side of the bearing center plane surfaces 11 entspre ⁇ , and wherein the crankshaft 7 are connected via struts 12 to the flange plates. 5
- the engine block 3 designed according to the invention forms a spatial Ver ⁇ band, the bending and torsional moments of resistance advantageously without the involvement of the cylinder 6 essentially over the machine longitudinally oriented devices of the flange plate 5, which are at the greatest possible distance from the bearing center plane 11, in combination with the stiffening elements 10 of the bearing frame. mens 9 are achieved.
- crankshaft bearings 7 are integrally and integrally connected to the flange plates 5 by means of hollow struts 13 arranged on both sides essentially in a machine transverse plane, each preferably designed in the manner of a ring Bearing bracket T using radial flanges.
- 14 a U-profile open on the cylinder or flange side forms, with the hollow struts 13, stiffening transitions 15 in the connection area.
- each bearing cover 7 "or 8 has extensions 16 which are arranged at a distance from one another in the machine longitudinal direction and are directed laterally deep down relative to the bearing center plane 11 , wherein the relatively thin-walled extensions 16 by means of covers 17 form essentially closed hollow profiles 18, which are connected as stiffening elements 10 to triangular, thin-walled hollow beams 19 adapted to the extensions 16 in cross section.
- the engine block 3 is preferably made at least in the circumference of the flange plates 5 with the crankshaft bearings 7 arranged via the hollow struts 13, including the bearing frame 9, in one piece and integrally from vermicular gray cast iron (GGV).
- GGV vermicular gray cast iron
- the bearing frame 9, which is separated from the engine block 3 by "cracking”, can be connected to this by means of two screw bolts 20 which are provided in the hollow struts 13 and are provided for each crankshaft bearing 7.
- the screw bolts 20, which are preferably arranged essentially in the V-angle of the V-engine 2, obliquely penetrate the fracture separating surfaces, which are preferably arranged in the center plane 11 of the bearing, so that the transverse forces in each crankshaft bearing 7 via the tensioned fracture separating surfaces are securely with only two provided bolts 20 are transferred.
- This reduced screwing effort advantageously results in a narrow bearing frame with stiffening elements 10 or hollow beams 19 that can be arranged deep below the bearing center plane 11.
- the roof-like flange plates 5 are connected in a one-piece, integral manner to the crankshaft bearings 7 via their hollow longitudinal struts 13 via the hollow struts 13 which are arranged in a V-shaped manner.
- the flange plates 5 which are connected in one piece in the middle, are connected to each bearing bracket T via this connection area by means of hollow supports 21.
- These supports 21 are used to derive the force in the vertical axis of the V-engine 2 in order to avoid a buckling load on the hollow strut 13.
- a longitudinal channel 22 is provided to stiffen the connection area of the flange plates 5, for example in cooperation with the hollow supports 21 Lubricating oil supply to the bearings 7 is used.
- an engine block 3 is a spatial association of high bending and torsional stiffness. ability achieved. 5 thus rigidly connected cylinders 6 can be selected as required, either insertable or doctrine with the depending flange ⁇ .
- the flange plates 5 prevail preferably obliquely to achieve a stiffer connection between the respective cylinders 6, and flange 5 against vibration during operation, which in addition at in series beab ⁇ stan Deten cylinders 6 via arranged in the row direction bridges 23 are reduced between the cylinders. 6
- the cylinders 6 are free in the respective coolant without casting an additional material.
- the flange plates 5 For a permanent connection of the engine block 3 to the one-piece sheathing 4, the flange plates 5 have cambered edges 24 in the longitudinal and transverse directions of the machine, each with large radii, which merge into one another at the machine housing corners over further, smaller radii. Further the edges 24 are e.g. designed as T-shaped flanges 25 in cross section. As an alternative to the flanges 25, the edges 24 can also have a fracture-rough surface for positive and non-positive connection with the light metal sheathing 4. Furthermore, the flanges 25 can also have a fracture-rough surface.
- the engine block 3 can be assigned a casing 4 made of a light metal casting, which is made of outer and inner longitudinal and frontal housing walls, which impeded the cooling during shrinking due to the flange plates 5 of the engine block 3
- Light metal sheathing 4 is evenly fluid-tightly connected to the flanges 25 of the flange plates 5 via the cambered edges 24 in a form-fitting and non-positive manner.
- the sheathing 4 is further advantageously stiffened in that the cylinders 6, which are integrally and integrally connected to the flange plates 5, each end in a cooling space cover plate 27 provided with coolant openings 26, which is connected to the sheathing 4 in a one-piece, material connection.
- inner longitudinal housing walls 28 with the bottom and top walls 29 and 30 crossing the V-space form a hollow support 31 stiffening the rows of cylinders 6, which acts as a coolant channel with, for example, pumps arranged on the front - Housing 32 is connected between integrally formed valve train shafts ( Figure 2).
- the shrouded engine block 3 is assigned a separate connecting flange 36 for a transmission (not shown) on the output side, which is located in the center area and in both outer areas of the flange plate 5 above the crankshaft bearing 7 on the driven side and with the bearing frame 9 in the area of the hollow beams 19 below this bearing 7 each can be connected to the engine block 3 via screw connections 37.
- the weight advantage that can be achieved with the invention is particularly evident in the case of multi-cylinder V-type reciprocating piston machines, but can also be advantageous for single-row machines with one or more cylinders.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97905024A EP0885354B1 (de) | 1996-03-07 | 1997-02-14 | Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren |
JP9531391A JP2000506243A (ja) | 1996-03-07 | 1997-02-14 | 往復ピストン式機械の機械ケーシング |
DE59700695T DE59700695D1 (de) | 1996-03-07 | 1997-02-14 | Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren |
US09/142,451 US6135081A (en) | 1996-03-07 | 1997-02-14 | Engine power section for piston engines, particularly V-engines |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19608877.1 | 1996-03-07 | ||
DE19608877A DE19608877A1 (de) | 1996-03-07 | 1996-03-07 | Maschinengehäuse für Hubkolbenmaschinen, insbesondere V-Motoren |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997033084A1 true WO1997033084A1 (de) | 1997-09-12 |
Family
ID=7787538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/000696 WO1997033084A1 (de) | 1996-03-07 | 1997-02-14 | Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren |
Country Status (6)
Country | Link |
---|---|
US (1) | US6135081A (de) |
EP (1) | EP0885354B1 (de) |
JP (1) | JP2000506243A (de) |
DE (2) | DE19608877A1 (de) |
ES (1) | ES2139441T3 (de) |
WO (1) | WO1997033084A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024217A1 (de) * | 2000-05-17 | 2001-11-22 | Man Nutzfahrzeuge Ag | Kurbelwellenlagerung für Brennkraftmaschinen |
JP3781945B2 (ja) * | 2000-05-23 | 2006-06-07 | 富士重工業株式会社 | エンジン用ベアリングケース |
DE10112132A1 (de) * | 2001-03-14 | 2002-09-19 | Bayerische Motoren Werke Ag | Zylinderkurbelgehäuse für eine flüssigkeitsgekühlte Brennkraftmaschine |
EP1298295B1 (de) * | 2001-09-28 | 2007-05-09 | Kubota Corporation | Mehrzylinderbrennkraftmaschine |
DE20314367U1 (de) * | 2002-09-16 | 2004-03-11 | Perkins Engines Co. Ltd. | Zylinderblock für einen Verbrennungsmotor mit einer lokal verdickten Endwand |
DE10244828B4 (de) * | 2002-09-25 | 2011-12-01 | Bayerische Motoren Werke Aktiengesellschaft | Zylinderkurbelgehäuse für eine Verbrennungskraftmaschine |
CN100427745C (zh) * | 2006-09-28 | 2008-10-22 | 无锡开普动力有限公司 | 一种v型双缸发动机的侧盖 |
DE102008014022A1 (de) * | 2008-03-13 | 2009-09-17 | Honsel Ag | Verfahren zur Herstellung eines Zylinderblocks sowie Zylinderblock für eine Brennkraftmaschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2381910A2 (fr) * | 1977-02-24 | 1978-09-22 | List Hans | Moteur a combustion a bruit reduit |
DE8530709U1 (de) * | 1985-10-30 | 1989-10-19 | Georg Fischer AG, Schaffhausen, CH, Niederlassung: Georg Fischer AG, 7700 Singen | Mehrteiliger Zylinderblock |
EP0473006A1 (de) * | 1990-08-29 | 1992-03-04 | Fritz Winter, Eisengiesserei O.H.G. | Zylinderblock für Kraftfahrzeugmotoren |
EP0554575A1 (de) * | 1992-01-06 | 1993-08-11 | Honda Giken Kogyo Kabushiki Kaisha | Zylinderblock |
DE4324609A1 (de) * | 1993-07-22 | 1995-01-26 | Avl Verbrennungskraft Messtech | Kurbelgehäuse für Brennkraftmaschinen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2078056A (en) * | 1936-09-15 | 1937-04-20 | Chapman Everett | Frame for high compression apparatus |
DE1083592B (de) * | 1955-07-07 | 1960-06-15 | Perfect Circle Corp | Fuer mehrzylindrige Brennkraftmaschinen bestimmter Zylinderblock |
DE2432569A1 (de) * | 1974-07-06 | 1976-01-15 | Kloeckner Humboldt Deutz Ag | Hubkolbenbrennkraftmaschine, insbesondere mit v-anordnung der zylinder |
JPS5865955A (ja) * | 1981-10-15 | 1983-04-19 | Toyota Motor Corp | 車輛用シリンダブロツク |
US4644911A (en) * | 1983-10-07 | 1987-02-24 | Honda Giken Kogyo Kabushiki Kaisha | Cylinder block for internal combustion engine |
JPS6081451A (ja) * | 1983-10-07 | 1985-05-09 | Honda Motor Co Ltd | 内燃機関のシリンダブロツク |
-
1996
- 1996-03-07 DE DE19608877A patent/DE19608877A1/de not_active Withdrawn
-
1997
- 1997-02-14 EP EP97905024A patent/EP0885354B1/de not_active Expired - Lifetime
- 1997-02-14 ES ES97905024T patent/ES2139441T3/es not_active Expired - Lifetime
- 1997-02-14 JP JP9531391A patent/JP2000506243A/ja active Pending
- 1997-02-14 DE DE59700695T patent/DE59700695D1/de not_active Expired - Lifetime
- 1997-02-14 WO PCT/EP1997/000696 patent/WO1997033084A1/de active IP Right Grant
- 1997-02-14 US US09/142,451 patent/US6135081A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2381910A2 (fr) * | 1977-02-24 | 1978-09-22 | List Hans | Moteur a combustion a bruit reduit |
DE8530709U1 (de) * | 1985-10-30 | 1989-10-19 | Georg Fischer AG, Schaffhausen, CH, Niederlassung: Georg Fischer AG, 7700 Singen | Mehrteiliger Zylinderblock |
EP0473006A1 (de) * | 1990-08-29 | 1992-03-04 | Fritz Winter, Eisengiesserei O.H.G. | Zylinderblock für Kraftfahrzeugmotoren |
EP0554575A1 (de) * | 1992-01-06 | 1993-08-11 | Honda Giken Kogyo Kabushiki Kaisha | Zylinderblock |
DE4324609A1 (de) * | 1993-07-22 | 1995-01-26 | Avl Verbrennungskraft Messtech | Kurbelgehäuse für Brennkraftmaschinen |
Also Published As
Publication number | Publication date |
---|---|
EP0885354A1 (de) | 1998-12-23 |
US6135081A (en) | 2000-10-24 |
ES2139441T3 (es) | 2000-02-01 |
JP2000506243A (ja) | 2000-05-23 |
DE19608877A1 (de) | 1997-09-11 |
EP0885354B1 (de) | 1999-11-10 |
DE59700695D1 (de) | 1999-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2221804C2 (de) | Kurbelgehäuse für Mehrzylinder-Kolbenmaschinen | |
DE2839885C2 (de) | ||
EP1368562B1 (de) | Zylinderkurbelgehäuse für eine flüssigkeitsgekühlte Brennkraftmaschine | |
DE3010635C2 (de) | ||
DE3801715C2 (de) | ||
DE102005013841B4 (de) | Zylinderblockaufbau für einen Motor | |
EP0944784B1 (de) | Stützstruktur für das kurbelgehäuse einer hubkolben-brennkraftmaschine | |
EP0809041B1 (de) | Vorrichtung zum Ausgleich von Massenmomenten an Hubkolben-Brennkraftmaschinen | |
EP0885354A1 (de) | Maschinengehäuse für hubkolbenmaschinen, insbesondere v-motoren | |
EP1688595B1 (de) | Ölwanne für eine Brennkraftmaschine | |
EP0861975A2 (de) | Abgaskrümmerflansch für eine Brennkraftmaschine | |
DE3875964T2 (de) | Schalldaemmendes motorgehaeuse fuer hubkolbenkraftmaschinen. | |
DE69202605T2 (de) | Hubkolbenmaschine. | |
DE10021198B4 (de) | Zylinder-Kurbelgehäuse für eine Brennkraftmaschine | |
DE4110347C2 (de) | Befestigungsanordnung für eine Ablenkplatte in einem Motor | |
EP0486463B2 (de) | Gussform für den Zylinderblock einer Brennkraftmaschine mit zwei in V-Form angeordneten Zylinderreihen | |
DE19540763C1 (de) | Gehäuse für eine Hubkolben-Brennkraftmaschine | |
EP1044811B1 (de) | Seitenwand eines Druckwerks in einer Bogenrotationsdruckmaschine | |
EP0683858B1 (de) | Kolbenmaschine, insbesondere kolbenbrennkraftmaschine mit versteiftem motorblock | |
DE102008021528B4 (de) | Baugruppe für eine Brennkraftmaschine mit einer oberen Kurbelgehäusehälfte, einer Ölwanne und einer Trägerstruktur | |
DE4033623C1 (de) | ||
WO2005093245A1 (de) | Zylindergehäuse | |
EP0044313A1 (de) | Kolbenmaschine. | |
EP0851132A1 (de) | Gussgehäuse mit einer Lageranordnung, insbesondere Kurbel-Zylinder-Block für Hubkolbenmaschinen | |
DE19622678C1 (de) | Mehrzylindrige Brennkraftmaschine in Kapselbauweise |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1997905024 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1997905024 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09142451 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 1997905024 Country of ref document: EP |