EP0473006A1 - Bloc-cylindre pour moteurs des véhicules - Google Patents

Bloc-cylindre pour moteurs des véhicules Download PDF

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Publication number
EP0473006A1
EP0473006A1 EP91113626A EP91113626A EP0473006A1 EP 0473006 A1 EP0473006 A1 EP 0473006A1 EP 91113626 A EP91113626 A EP 91113626A EP 91113626 A EP91113626 A EP 91113626A EP 0473006 A1 EP0473006 A1 EP 0473006A1
Authority
EP
European Patent Office
Prior art keywords
cylinder block
block according
trough
crankshaft
crankshaft bearing
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.)
Withdrawn
Application number
EP91113626A
Other languages
German (de)
English (en)
Inventor
Horst Henkel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fritz Winter Eisengiesserei OHG
Original Assignee
Fritz Winter Eisengiesserei OHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fritz Winter Eisengiesserei OHG filed Critical Fritz Winter Eisengiesserei OHG
Publication of EP0473006A1 publication Critical patent/EP0473006A1/fr
Withdrawn legal-status Critical Current

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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
    • F02F7/008—Sound insulation
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0054—Fastening to the cylinder block
    • 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
    • F02F2001/104—Cylinders; Cylinder heads  having cooling means for liquid cooling using an open deck, i.e. the water jacket is open at the block top face
    • 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
    • F02F2007/0056—Crankshaft bearings fitted in the crankcase using bearing beams, i.e. bearings interconnected by a beam or multiple beams

Definitions

  • the invention relates to a cylinder block for motor vehicle engines, each with a crankshaft bearing and oil pan detachably attached thereto.
  • conventional cast cylinder blocks form an integral structural unit with the crankcase and the upper crankshaft bearing shells.
  • the lower crankshaft bearings are flanged from below using screws.
  • the bottom of the crankcase forms the oil pan flanged to the crankcase.
  • the invention is based on the object of reducing the sound radiation in the area of the most heavily loaded crankcase walls. At the same time, the weight of the assembly consisting of the cylinder block and crankcase is to be reduced in order to better meet modern requirements.
  • a trough made of soundproof material is detachably fastened to the cylinder block, which receives the crankshaft bearing, the side walls of the crankcase and the oil pan.
  • the object is achieved by the inventive design of the trough flanged above the previous division level according to FIG. 1, which now encompasses the crankshaft bearings laterally and thus replaces the previous side walls of the crankcase. Due to the use of soundproof material for the sump, the sound radiation from the engine sides and at the same time the total weight of the cylinder block with crankcase and oil sump can be greatly reduced.
  • the tub can be made of steel covered with soundproofing material, non-ferrous material or plastic.
  • the trough can also consist of a double-shell composite material lined with sound insulation material. The material should be corrosion-resistant and expediently have the necessary heat resistance.
  • the space in the composite sheet can be filled with foam or glass fiber mats.
  • foam the cavity of the composite material can be foamed.
  • the sheets formed into the tub can be loosely inserted into one another with the interposition of the sound insulation material and can be detachably fastened to the cylinder block by means of screws.
  • the tub can also be made entirely of plastic or in a suitable sandwich version.
  • the parting plane between the cylinder block and trough should be as close as possible to the top surface, preferably between the cylinders and the axis of the crankshaft bearings and in particular in the area of the cylinder bottom edges. Then the accessibility to the crankshaft bearings is improved, which is a great advantage for assembly and repair work.
  • stiffening beads can be provided in its walls.
  • a frame-like connection of the lower crankshaft bearing shells also has a stiffening effect, which according to a preferred embodiment of the invention can be created by longitudinal webs between adjacent crankshaft bearing shells.
  • the lower crankshaft bearing shell can be a component of the cylinder block in order to remove the load on the screw connection for the crankshaft bearing shell in this embodiment.
  • the crankshaft bearing, in which the screw connection is not exposed to high loads, can be covered by an upper bearing shell.
  • vibration-damping buffers can be arranged as an intermediate layer between the side webs and the inner wall of the tub.
  • a single bearing cover can be connected to the respective bearing web on the cylinder block.
  • the connecting section between it and the crankshaft bearings should be designed in the form of a double bulkhead, as described in DE-PS 39 17 492, and is used to save weight while increasing stability.
  • the invention is explained in more detail with reference to the drawing.
  • crankcase 2 is integrally formed with the side walls 3 and webs 4 to form the upper crankshaft bearing shell 5.
  • Cylinder block 1 and crankcase 2 as well as upper crankshaft bearing shells are manufactured in a cast version. As a rule, either aluminum alloys or cast iron are used as materials.
  • the lower crankshaft bearing shells 6 are flanged to the upper crankshaft bearing shells 5 by means of screws 7.
  • the lower end forms the oil pan 8, which is flanged to the crankcase 2 approximately at the level of the lower crankshaft bearing shells, as shown in FIG. 1.
  • the division level 9 between the cylinder block 1 and the tub 10 is higher than in the conventional design according to FIG. 1, namely approximately at the level of the lower edge 11 of the cylinders 12.
  • the tub 10 thus replaces the oil pan and also the lateral longitudinal walls of the crankcase in the conventional design according to FIG. 1.
  • the pan 10 thus forms an integral structural unit which takes the place of the conventional crankcase and the oil pan.
  • the pot-shaped trough 10, which is open at the top, encloses the crankshaft bearings on both longitudinal sides and at the bottom.
  • the oil drain plug 13 is provided as before.
  • the tub 10 is flanged to the cylinder block 1 by means of screws 14 at its upper edges. After removing the tub 10, the crankshaft and its bearings are freely accessible.
  • the lower crankshaft bearing shell 6 can be included as part of the cylinder block. This removes the load on the screw connection for the crankshaft bearing shell.
  • the upper bearing shell 5 can be covered, in which the screw connection is not exposed to high loads.
  • the trough 10 consists of a deformed composite material in sandwich construction (15a and 15b), between which there is a layer of a suitable soundproofing material 16, e.g. B. foam.
  • the trough can also be designed with one or more shells, whereby it is covered with the appropriate sound insulation material.
  • the specific material thickness and the type of sandwich design depends on the desired stability of the tub and the desired sound insulation.
  • the two materials 15a and 15b formed into the trough should be loosely inserted into one another in a suitable manner with the interposition of the soundproofing material 16 in the form of a mat or should be firmly connected to one another and to the cylinder block 1 by means of suitable methods.
  • the lower crankshaft bearing shells 6 can be connected to one another by longitudinal webs 17.
  • side fins 18 can be arranged, which form stops for the wall of the tub 10, wherein rubber buffers 19 for vibration damping can be arranged between the end faces of the side webs 18 and the inner wall of the tub 10 .
  • the connecting webs between the cylinder block 1 and the upper crankshaft bearing shells 5 can be designed in the form of a double bulkhead 21 according to FIG. 3, which at the same time ensures greater stability despite the reduction in weight.

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)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
EP91113626A 1990-08-29 1991-08-14 Bloc-cylindre pour moteurs des véhicules Withdrawn EP0473006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4027242 1990-08-29
DE19904027242 DE4027242A1 (de) 1990-08-29 1990-08-29 Zylinderblock fuer kraftfahrzeugmotoren

Publications (1)

Publication Number Publication Date
EP0473006A1 true EP0473006A1 (fr) 1992-03-04

Family

ID=6413106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113626A Withdrawn EP0473006A1 (fr) 1990-08-29 1991-08-14 Bloc-cylindre pour moteurs des véhicules

Country Status (3)

Country Link
EP (1) EP0473006A1 (fr)
DE (1) DE4027242A1 (fr)
FI (1) FI914059A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007017A1 (fr) * 1992-09-18 1994-03-31 Eisenwerk Brühl GmbH Bloc-cylindres pour un moteur a combustion interne
WO1997033084A1 (fr) * 1996-03-07 1997-09-12 Bayerische Motoren Werke Aktiengesellschaft Carter pour moteurs a pistons alternatifs, notamment moteurs en v
GB2350864A (en) * 1999-06-07 2000-12-13 Perkins Engines Co Ltd Containment and support assembly, eg for an engine or gearbox, with a rigid framework and lower density outer casing
FR2929646A1 (fr) * 2008-04-08 2009-10-09 Peugeot Citroen Automobiles Sa Boitier de sortie d'eau de moteur a combustion interne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT3675U1 (de) * 1999-05-04 2000-06-26 Avl List Gmbh Zylinder-kurbelgehäuse für eine brennkraftmaschine
DE102005028775A1 (de) * 2005-06-22 2007-01-04 Daimlerchrysler Ag Kurbelgehäuse für eine Brennkraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524880C (de) * 1929-03-14 1931-05-15 Marc Birkigt Luftgekuehlte Lager, insbesondere fuer Kurbelwellen von Brennkraftmaschinen
DE2839885A1 (de) * 1977-09-13 1979-04-26 Nissan Motor Geraeuscharmer verbrennungsmotor
DE3020818A1 (de) * 1979-06-02 1980-12-04 Nissan Motor Laermverringernder deckel
US4338889A (en) * 1980-05-05 1982-07-13 Hans List Low-noise level internal combustion engine
DE8915051U1 (de) * 1989-12-22 1990-02-15 Metallwarenfabrik Gemmingen GmbH & Co, 75050 Gemmingen Schalldämmkabine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524880C (de) * 1929-03-14 1931-05-15 Marc Birkigt Luftgekuehlte Lager, insbesondere fuer Kurbelwellen von Brennkraftmaschinen
DE2839885A1 (de) * 1977-09-13 1979-04-26 Nissan Motor Geraeuscharmer verbrennungsmotor
DE3020818A1 (de) * 1979-06-02 1980-12-04 Nissan Motor Laermverringernder deckel
US4338889A (en) * 1980-05-05 1982-07-13 Hans List Low-noise level internal combustion engine
DE8915051U1 (de) * 1989-12-22 1990-02-15 Metallwarenfabrik Gemmingen GmbH & Co, 75050 Gemmingen Schalldämmkabine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007017A1 (fr) * 1992-09-18 1994-03-31 Eisenwerk Brühl GmbH Bloc-cylindres pour un moteur a combustion interne
US5501189A (en) * 1992-09-18 1996-03-26 Eisenwerk Bruehl Gmbh Cylinder block for an internal combustion engine
WO1997033084A1 (fr) * 1996-03-07 1997-09-12 Bayerische Motoren Werke Aktiengesellschaft Carter pour moteurs a pistons alternatifs, notamment moteurs en v
US6135081A (en) * 1996-03-07 2000-10-24 Bayerische Motoren Werke Ag Engine power section for piston engines, particularly V-engines
GB2350864A (en) * 1999-06-07 2000-12-13 Perkins Engines Co Ltd Containment and support assembly, eg for an engine or gearbox, with a rigid framework and lower density outer casing
FR2929646A1 (fr) * 2008-04-08 2009-10-09 Peugeot Citroen Automobiles Sa Boitier de sortie d'eau de moteur a combustion interne
EP2108796A1 (fr) * 2008-04-08 2009-10-14 Peugeot Citroen Automobiles S.A. Boitier de sortie d'eau de moteur a combustion interne

Also Published As

Publication number Publication date
FI914059A0 (fi) 1991-08-28
FI914059A (fi) 1992-03-01
DE4027242A1 (de) 1992-03-05

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