EP0899445A2 - Culasse refroidie par un liquide pour un moteur à combustion interne - Google Patents

Culasse refroidie par un liquide pour un moteur à combustion interne Download PDF

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Publication number
EP0899445A2
EP0899445A2 EP98114792A EP98114792A EP0899445A2 EP 0899445 A2 EP0899445 A2 EP 0899445A2 EP 98114792 A EP98114792 A EP 98114792A EP 98114792 A EP98114792 A EP 98114792A EP 0899445 A2 EP0899445 A2 EP 0899445A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
internal combustion
combustion engine
screw
cylinder
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
Application number
EP98114792A
Other languages
German (de)
English (en)
Other versions
EP0899445A3 (fr
EP0899445B1 (fr
Inventor
Klaus Berner
Wolfgang Kizler
Roland Meyer
Bernward Vethacke
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Daimler Benz AG
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 DaimlerChrysler AG, Daimler Benz AG filed Critical DaimlerChrysler AG
Publication of EP0899445A2 publication Critical patent/EP0899445A2/fr
Publication of EP0899445A3 publication Critical patent/EP0899445A3/fr
Application granted granted Critical
Publication of EP0899445B1 publication Critical patent/EP0899445B1/fr
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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type

Definitions

  • the invention relates to a liquid-cooled cylinder head a multi-cylinder internal combustion engine according to the Preamble of claim 1.
  • From JP-PS 59 96 341 is a generic liquid-cooled Cylinder head for a multi-cylinder internal combustion engine known.
  • the cylinder head has conventional screw pipes for the cylinder head bolts, which are the clamping forces of the cylinder head bolts on the small cross section of the pipe from the ceiling to the bottom plate of the cylinder head.
  • Um now the screw clamping forces also in the floor areas between the Distributing screw pipes is between the screw pipes a T-shaped bending beam arranged over a rib is connected to the gas exchange channels and the screw clamping forces should also lead to the intermediate areas.
  • the invention has for its object a liquid-cooled Cylinder head of a multi-cylinder internal combustion engine to create with which even in confined spaces as high and even surface pressure as possible of the cylinder head gasket also in the areas between the cylinder head bolts can be achieved.
  • An advantage of the invention is the simplification of the Screw whistles, in the adjacent wall sections of the gas exchange channels thickened in the area of the cylinder head bolts are formed and thereby form ribs that are part of the Screw whistles are.
  • the screw pipes are not designed as continuous columns. Simplifying the Screw pipes draw a lower weight of the cylinder head after itself.
  • Another major advantage is that optimal force distribution of the screw clamping force over the Screw whistles in the cylinder head. Since the screw pipes are not are designed as "conventional pillars", which the Bolting force only on the small cross section of the column Ceiling lead to the bottom of the cylinder head, but afterwards comprise ribs on a columnar portion which a directed distribution of forces in the areas between the Allow cylinder head screws.
  • the screw tension of the Cylinder head bolts may appear shortly after being introduced into the conventional columnar section of the screw pipe spread over the adjoining ribs in the cylinder head, whereby the surface pressure on the cylinder head gasket evened out, especially to the advantage of the areas in the middle under the gas exchange channels. This ensures that the surface pressure acting on the cylinder head gasket those arising during operation of the internal combustion engine enormous gas forces due to the even distribution of forces withstands the screw tension better.
  • the cylinder head After starting the internal combustion engine, the cylinder head warms up and the crankcase of the internal combustion engine and this also heats up the cooling water very quickly.
  • the cylinder head bolts over one Part of their length from a section of the cooling water space completely surrounded, which also makes them very cool quickly brought to the temperature of the surrounding components become. Because the cylinder head bolts are parallel to the cylinder head as well as warm up to the crankcase and thereby also expand, will cause excessive stress on the cylinder head material avoided, which makes it possible on the to forego the conventional screw pipe (column).
  • Fig. 1 is a liquid-cooled cylinder head 1 for one multi-cylinder internal combustion engine, not shown, the left half being a first embodiment and the right half a second embodiment of the invention represents.
  • the cylinder head 1 has a cooling water chamber 2 (see Fig. 2), of which only the inlet 2a is shown in FIG. 1. Of the Cooling water chamber 2 is down from a cylinder head floor 3 and up from one at a distance above the cylinder head floor 3 arranged cylinder head cover 4 limited. In the second embodiment the cylinder head 1 also has one in the inlet 2a arranged, free-standing projection 16 on. In the cooling water chamber 2 there are gas exchange channels 5 and in FIG. 2 shown chambers 6 arranged for spark plugs and / or injection nozzles, the gas exchange channels 5 according to FIG. 2 in the direction a transverse engine axis 7.
  • cylinder head clamping screws only indicated in the figures 8 is the cylinder head 1 with the interposition of one here Not shown cylinder head gasket with a crankcase 9 of the internal combustion engine releasably connected.
  • the pressing of the Cylinder head 1 to the crankcase 9 and thus the bracing the cylinder head gasket between cylinder head 1 and crankcase 9 takes place when the cylinder head screws 8 are tightened with the necessary screw preload.
  • the cylinder head screws 8 extend part of their length free through a section, in this case the inlet 2a, the Cooling water chamber 2 in the cylinder head 1 and through a cooling water chamber section 10 in the crankcase 9.
  • the cylinder head bolts 8 are flowed around by the cooling water and quickly on the Brought temperature of the surrounding components 1, 9.
  • the cylinder head bolts 8 are by screw pipes described in more detail below 11 of the cylinder head 1 passed, which for Distribution of the bolt clamping forces of the cylinder head bolts 8 serve from the cylinder head cover 4 to the cylinder head base 3.
  • Fig. 2 As can be seen from Fig. 2, according to the invention are in both Embodiments of the screw pipes 11 for the cylinder head screws 8 partly through adjacent wall sections 12 in particular, similar gas exchange channels 5, such as Inlet channels formed, the wall portions 12 in Area of the cylinder head screws 8 to form ribs 13 are thickened.
  • This configuration according to the invention the screw pipes 11 distributes the screw clamping forces in areas 14 below the gas exchange channels 5 (see Fig. 1).
  • Fig. 1 is the introduction of force by the cylinder head screw 8 in the cylinder head 1 and the subsequent distribution of forces over the ribs 13 into the areas 14 below the gas exchange channels 5 marked with dash-dotted arrows 15, the projection 16 in the second embodiment none Has an influence on this distribution of forces because of the lead 16 is not supported from below, but freely in the inlet 2a or the cooling water chamber section 10 protrudes.
  • the preload the rib 13 is due to its special shape on the wall sections 12 of the gas exchange channels 5 in the direction of arrow 15 on the Aligned cylinder head gasket, which also in the the cylinder head bolts 8 adjacent areas 14 between the Gas exchange channels 5 a sufficient surface pressure on the Seal is achieved.

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)
EP98114792A 1997-08-28 1998-08-06 Culasse refroidie par un liquide pour un moteur à combustion interne Expired - Lifetime EP0899445B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19737492 1997-08-28
DE19737492A DE19737492C1 (de) 1997-08-28 1997-08-28 Flüssigkeitsgekühlter Zylinderkopf einer mehrzylindrigen Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP0899445A2 true EP0899445A2 (fr) 1999-03-03
EP0899445A3 EP0899445A3 (fr) 2000-01-12
EP0899445B1 EP0899445B1 (fr) 2003-02-26

Family

ID=7840435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98114792A Expired - Lifetime EP0899445B1 (fr) 1997-08-28 1998-08-06 Culasse refroidie par un liquide pour un moteur à combustion interne

Country Status (3)

Country Link
US (1) US6129064A (fr)
EP (1) EP0899445B1 (fr)
DE (1) DE19737492C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041708A1 (de) * 2009-09-16 2011-03-24 GM Global Technology Operations, Inc., Detroit Schraubenpfeife für einen Zylinderkopf einer Brennkraftmaschine, Zylinderkopf, Brennkraftmaschine und Fahrzeug sowie Verfahren zur Herstellung einer Schraubenpfeife

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103459814B (zh) * 2011-04-11 2015-12-09 丰田自动车株式会社 内燃机的气缸盖

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5996341A (ja) 1982-11-22 1984-06-02 株式会社　中井（保）組 土中への筒体設置方法
DE3836117C1 (en) 1988-10-22 1989-07-27 Krupp Mak Maschinenbau Gmbh, 2300 Kiel, De Cylinder head for internal combustion engines

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220202B (de) * 1964-05-08 1966-06-30 Daimler Benz Ag Anordnung von Zylinderlaufbuchsen, insbesondere von nassen Zylinderlaufbuchsen bei Brennkraftmaschinen
DE1301655C2 (de) * 1965-01-12 1970-04-23 Daimler Benz Ag Brennkraftmaschine mit fluessigkeitsgekuehlten Zylinderlaufbuchsen
DE2143734B2 (de) * 1971-09-01 1973-10-04 Daimler-Benz Ag, 7000 Stuttgart Brennkraftmaschine mit einem in den Durchgang fur das Kuhlwasser zwischen Zylinderkopf und Kurbeigehause einge setzten Zwischenrohr
DE3228922A1 (de) * 1982-08-03 1984-02-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Verbindung von vorzugsweise dynamisch hochbeanspruchten maschinenteilen durch mehrere lange schrauben und mehrere kurze schrauben
JPS5996341U (ja) * 1982-12-20 1984-06-29 マツダ株式会社 エンジンのシリンダヘツド構造
DE3513126C2 (de) * 1985-04-12 1987-02-12 Daimler-Benz Ag, 7000 Stuttgart Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
DE3545333A1 (de) * 1985-12-20 1987-07-02 Kloeckner Humboldt Deutz Ag Zylinderkopf
DE3616629A1 (de) * 1986-05-16 1987-11-19 Audi Ag Brennkraftmaschine
DE3726027A1 (de) * 1987-08-05 1989-02-16 Alcan Gmbh Waermebeaufschlagtes bauteil
DE3922885A1 (de) * 1989-07-12 1991-01-17 Man Nutzfahrzeuge Ag Zylinderkopfdichtung fuer hubkolbenmaschinen, insbesondere brennkraftmaschinen
DE4223780C2 (de) * 1992-07-18 1996-04-11 Bayerische Motoren Werke Ag Schraubverbindung für einen Zylinderkopf einer Brennkraftmaschine
IT1270244B (it) * 1993-07-23 1997-04-29 Porsche Ag Accoppiamento a viti della testa cilindri di un motore a combustione interna
US5630389A (en) * 1995-09-29 1997-05-20 Self; Kevin G. Cylinder head bolt plug
SE503873C2 (sv) * 1995-10-13 1996-09-23 Scania Cv Ab Anordning för avtätning av en förbränningsmotors förbränningsrum
DE19644530C1 (de) * 1996-10-26 1998-02-12 Daimler Benz Ag Zylinderkopf für eine Mehrzylinder-Brennkraftmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5996341A (ja) 1982-11-22 1984-06-02 株式会社　中井（保）組 土中への筒体設置方法
DE3836117C1 (en) 1988-10-22 1989-07-27 Krupp Mak Maschinenbau Gmbh, 2300 Kiel, De Cylinder head for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009041708A1 (de) * 2009-09-16 2011-03-24 GM Global Technology Operations, Inc., Detroit Schraubenpfeife für einen Zylinderkopf einer Brennkraftmaschine, Zylinderkopf, Brennkraftmaschine und Fahrzeug sowie Verfahren zur Herstellung einer Schraubenpfeife

Also Published As

Publication number Publication date
DE19737492C1 (de) 1998-10-29
US6129064A (en) 2000-10-10
EP0899445A3 (fr) 2000-01-12
EP0899445B1 (fr) 2003-02-26

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