EP0457051B1 - Zylinder-Kurbelgehäuse - Google Patents

Zylinder-Kurbelgehäuse Download PDF

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Publication number
EP0457051B1
EP0457051B1 EP91106274A EP91106274A EP0457051B1 EP 0457051 B1 EP0457051 B1 EP 0457051B1 EP 91106274 A EP91106274 A EP 91106274A EP 91106274 A EP91106274 A EP 91106274A EP 0457051 B1 EP0457051 B1 EP 0457051B1
Authority
EP
European Patent Office
Prior art keywords
channel
cover
transverse channel
case according
sealing
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 - Lifetime
Application number
EP91106274A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0457051A1 (de
Inventor
Xaver Stemmer
Clemens Bandel
Manfred Buchborn
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.)
Audi AG
Eisenwerk Bruehl GmbH
Original Assignee
Audi AG
Eisenwerk Bruehl GmbH
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 Audi AG, Eisenwerk Bruehl GmbH filed Critical Audi AG
Publication of EP0457051A1 publication Critical patent/EP0457051A1/de
Application granted granted Critical
Publication of EP0457051B1 publication Critical patent/EP0457051B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02F7/007—Adaptations for cooling
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a cylinder crankcase of a liquid-cooled reciprocating piston internal combustion engine with cylinders arranged in a V-shape and surrounded by cooling channels, according to the preamble of patent claim 1.
  • Such a cylinder crankcase is shown in DE-C 36 33 261.
  • a channel-shaped open transverse channel is arranged on the power output side of the housing, which connects the cooling channels formed around the cylinders to one another and which can be closed by means of a cover.
  • the formation of such a transverse channel results in an efficient guidance of the cooling medium and also has advantages in terms of casting technology.
  • the cover only serves to seal the transverse channel.
  • the cooling medium can be drained, for example in the event of a repair, in such a way that at least when the cylinder heads or other parts exposed to the cooling medium are removed (such as a thermostat, water pump), no cooling medium runs out in an uncontrolled manner or can run into the open cylinders is not apparent from the aforementioned document.
  • the invention has for its object the generic To further develop the cylinder crankcase in such a way that, in terms of casting technology and in part, with little additional effort, it is possible to drain the cooling medium in a favorable and easily accessible manner, and harmful leakages between the coolant and the adjacent lubricant-containing environment are avoided.
  • the transverse channel connecting the cooling channels of the cylinder rows be L-shaped with a branching channel section, this channel section being guided downward (in the sense of the installation position of the internal combustion engine) and provided with a drain plug.
  • a shaft surrounding the drain plug can also be provided according to claim 2 in the components adjoining the cylinder crankcase at its lower region, for example a reinforcing part containing the crankshaft bearing bridges and / or an oil pan.
  • the drain plug can then be screwed in or out via this shaft without any disassembly of these components.
  • the cover closing the transverse channel can also carry the shaft sealing ring for sealing the crankshaft. Since such a cover is already present in many cylinder crankcases, this cover can be produced with little additional effort. This does not increase the number of parts of the internal combustion engine.
  • the drainage channel can be provided in the cover in a particularly simple manner, wherein if a flat seal is used, this is provided with openings in the region of the drainage channel.
  • FIG. 1 shows the cylinder crankcase 10 of a six-cylinder reciprocating piston internal combustion engine in a V-shaped cylinder arrangement with a cylinder row 12 on the left in the drawing plane, a right cylinder row 14 and a crankcase 16 connecting the two cylinder rows.
  • bearing seats 17 molded, which serve for the rotatable mounting of a crankshaft, not shown.
  • a channel-shaped open transverse channel 20 is formed in the front side 18 which represents the power output side or flywheel side of the internal combustion engine and which intersects a cooling channel 22 of the left row of cylinders 12 and a cooling channel 24 of the right row of cylinders 14.
  • a connection between the transverse channel 20 and the cooling channels of the left and right cylinder rows 12, 14 could, however, also be established by means of corresponding bores extending from the transverse channel 20.
  • the transverse channel 20 is L-shaped with an approximately vertically downward channel section 26, the section 26 being delimited by a lower wall 28.
  • the wall 28 forms a connection surface 30 for components adjoining the crankcase 16, namely a reinforcing part 32 (only partially shown in dashed lines) supporting the bearing bridges for supporting the crankshaft and an oil pan (not shown) adjoining the reinforcing part 32.
  • a downward-pointing threaded bore 34 is provided, into which a drain plug 36 is screwed tight.
  • a downwardly open shaft 38 is formed in the reinforcing part 32, through which the tool for screwing in or unscrewing the drain screw 36 can be inserted.
  • the shaft 38 is continued in the oil pan adjoining the reinforcing part 32.
  • a sealing surface 56 with threaded bores 40 is incorporated in the end face 18, which serves to fasten a cover 42 (see FIGS. 2 and 3) using screws, not shown.
  • the cover 42 (cf. FIG. 3) has a sealing surface 44 which runs around the transverse channel 20 and corresponds to the sealing surface 56 and in which holes 46 for the fastening screws (not shown) are machined in accordance with the hole pattern of the threaded holes. Furthermore, a central bore 48 is provided in the cover 42, into which a shaft sealing ring 51 (see also FIG. 2) is inserted for sealing the crankshaft. In the circumferential area between the central bore 48 and the transverse channel 20 with the channel section 26, a drainage channel 50 is worked into the sealing surface 44 in the form of an open channel, which runs along the radially inner bores 46 at 52 and at 54 to the atmosphere. The course of the drainage channel 50 is shown again in dashed lines in FIG. 1, its outlets at 52 and 54 having a free outlet into the end face 18 or to the atmosphere.
  • a flat seal 58 (FIG. 4) made of a suitable sealing material is provided between the end face 18 or the sealing surfaces 56 delimiting the transverse channel 20 and the cover 42 or its sealing surfaces 44, which is provided with openings 60 in the area of overlap with the drainage channel 50.
  • the openings 60 ensure that regardless of the sealing surface 44 or 56 at which a leakage occurs, the leakage medium is introduced into the drainage channel 50 and removed accordingly.
  • Fig. 1 shows the installation position of the cylinder crankcase as an internal combustion engine in the motor vehicle.
  • the advantage here is that the transverse channel 22 is geodetically below a dash-dotted plane 62, because this ensures when draining the cooling medium via the channel section 26 and after removing the drain plug 36 that no cooling medium from above into the cylinder heads when dismantling Cylinder runs in or emerges from the internal combustion engine in an uncontrolled manner via the cylinder head-cylinder sealing surfaces.
  • the L-shaped transverse channel 20 with channel section 26 is designed as an open channel which can be formed from the end face 18 of the cylinder crankcase 10 during casting. It is only necessary to design the shaping tool determining the contour of the end face 18 accordingly. A sand core, which must then be removed separately, is not required.

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)
EP91106274A 1990-05-14 1991-04-19 Zylinder-Kurbelgehäuse Expired - Lifetime EP0457051B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4015409 1990-05-14
DE4015409A DE4015409C1 (US07488766-20090210-C00029.png) 1990-05-14 1990-05-14

Publications (2)

Publication Number Publication Date
EP0457051A1 EP0457051A1 (de) 1991-11-21
EP0457051B1 true EP0457051B1 (de) 1993-12-29

Family

ID=6406340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106274A Expired - Lifetime EP0457051B1 (de) 1990-05-14 1991-04-19 Zylinder-Kurbelgehäuse

Country Status (3)

Country Link
EP (1) EP0457051B1 (US07488766-20090210-C00029.png)
DE (2) DE4015409C1 (US07488766-20090210-C00029.png)
ES (1) ES2047966T3 (US07488766-20090210-C00029.png)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508967C2 (de) * 1995-03-13 1997-04-03 Daimler Benz Ag Entlüftungsvorrichtung für das Kurbelgehäuse einer Brennkraftmaschine
DE19628400C1 (de) * 1996-07-15 1998-01-29 Daimler Benz Ag Kurbelgehäuse für einen Verbrennungsmotor
DE10121063A1 (de) * 2001-04-28 2002-10-31 Bayerische Motoren Werke Ag Wassergekühlter Zylinderkopf für eine Brennkraftmaschine
JP3867841B2 (ja) * 2001-10-26 2007-01-17 本田技研工業株式会社 二輪自動車のｖ型内燃機関
FR2903150B1 (fr) * 2006-07-03 2008-09-26 Renault Sas Ensemble comportant des pieces a etancher et un joint plat metallique a partie de liaison frangible et moteur comportant un tel ensemble

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1172911A (fr) * 1956-03-12 1959-02-17 Ferguson Res Ltd Harry Moteurs à combustion interne
US2949103A (en) * 1959-09-11 1960-08-16 Gen Motors Corp Liquid circulating system for liquid cooled internal combustion engine
DE2553291C3 (de) * 1975-11-27 1979-12-13 Bayerische Motoren Werke Ag, 8000 Muenchen Gegossenes Zylinder-Kurbelgehäuse für wassergekühlte V-Motoren
US4483278A (en) * 1983-05-10 1984-11-20 Kolacz Stephen J Full view engine cover
JPS60155710U (ja) * 1984-03-27 1985-10-17 本田技研工業株式会社 内燃機関における潤滑装置
DE3633261C1 (de) * 1986-09-30 1987-05-21 Bayerische Motoren Werke Ag Gegossenes Maschinengehaeuse fuer fluessigkeitsgekuehlte Brennkraftmaschinen mit V-foermiger Zylinderanordnung
DE3634735A1 (de) * 1986-10-11 1988-04-21 Goetze Ag Verschlussdeckel, insbesondere fuer kurbelwellen- und getriebegehaeuse bei kraftfahrzeugen

Also Published As

Publication number Publication date
DE4015409C1 (US07488766-20090210-C00029.png) 1991-06-13
DE59100764D1 (de) 1994-02-10
ES2047966T3 (es) 1994-03-01
EP0457051A1 (de) 1991-11-21

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