EP0244735B1 - Culasse pour moteur à combustion interne refroidi par eau - Google Patents

Culasse pour moteur à combustion interne refroidi par eau Download PDF

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Publication number
EP0244735B1
EP0244735B1 EP87106132A EP87106132A EP0244735B1 EP 0244735 B1 EP0244735 B1 EP 0244735B1 EP 87106132 A EP87106132 A EP 87106132A EP 87106132 A EP87106132 A EP 87106132A EP 0244735 B1 EP0244735 B1 EP 0244735B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cooling jacket
coolant
outlet opening
row
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
EP87106132A
Other languages
German (de)
English (en)
Other versions
EP0244735A3 (en
EP0244735A2 (fr
Inventor
Jiri Seidl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0244735A2 publication Critical patent/EP0244735A2/fr
Publication of EP0244735A3 publication Critical patent/EP0244735A3/de
Application granted granted Critical
Publication of EP0244735B1 publication Critical patent/EP0244735B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the invention relates to a cylinder head of a type according to the features of the preamble of the claim.
  • the object of the invention is to exclude local overheating in a cylinder head of the generic type and to achieve a low construction cost.
  • This object is achieved by the invention with the characterizing features of patent claim 1.
  • the coolant flow in the cooling jacket of the cylinder head is changed extremely slightly in this way with and without coolant discharge to the heating device.
  • the coolant volume flowing out through the pipeline then corresponds approximately to that which flows through the smaller overflow openings in the flow direction before the confluence with the pipeline.
  • the main flow of the coolant from the second to the first end region is thus not influenced with and without coolant discharge to the heating device.
  • the largely non-contact arrangement of the pipeline to the cylinder head walls precludes overheating of the coolant in the pipeline when the heating device is switched off even if the component temperature of the cylinder head is above the boiling temperature of the at high ambient temperature and / or high engine load Coolant.
  • the features of claim 2 enable a particularly cost-effective design with a pipe which is smoothly cut to length at both ends.
  • the features of claim 3 also exclude any additional component expenditure for the connection of a hose line to the heating device.
  • the main components of a liquid-cooled internal combustion engine 1 consist of a cylinder crankcase 2 and a cylinder head 3, each of which contains a cooling jacket 4 and 5, which are shown in FIG. 1 by arrows corresponding to the coolant flow direction.
  • a plurality of combustion chamber wall sections 6 and in the cylinder crankcase 2 each associated working cylinder 7 are formed in a row.
  • a cooler supply line 11 and a short-circuit line 12 to a cooler 13 and / or immediately to a thermostat 14 in a cooler return line 15 and then to a coolant outlet opening 9 and 10 connected to a coolant pump 16 on the cylinder crankcase 2.
  • the output of the pump 16 is connected directly to the cooling jacket 4 of the cylinder crankcase 2, as a result of which the main cooling circuit is closed.
  • a pipe 18 extends from the second end region 17 thereof for the connection of a heating flow line 19 to a vehicle interior heating device 20 and via a heating return line 21 back to the coolant pump 16.
  • This pipe 18 has a circular cross-section, is cut to length at both ends and ends in the cylinder head cooling jacket 5 in an exposed inlet end opening 22. This lies at an optionally defined distance from the second end region 17 to close to the first end region 8 of the cylinder head 3, depending on the in Cooling jacket 5 of the cylinder head 3 given coolant flow conditions.
  • the pipeline 18 is fastened in a coolant outlet opening 23 of the cylinder head 3 for the heating flow line 19 and in inner bearing points 24 with small contact surfaces to the cylinder head walls 25 by shrinking, expanding and / or gluing.
  • the pipe 18 has a conventional hose connection piece 27 projecting beyond the outlet opening 23 and integrally formed with an end bead and / or annular grooves.
  • the pipeline 18 cut to length to allow the outer boundary of the outlet opening 23 to be closed and to fasten a conventional flange cover with an angle connecting piece which saves a cylinder head to the outlet opening 23.
  • the inlet end opening 22 of the pipeline 18 exposed in the cylinder head cooling jacket 5, which is arranged at a coordinated distance from the second end region 17 of the cylinder head, ensures a function which is reliable in terms of malfunction and overheating liquid cooling, since on the one hand the flow through the cylinder head cooling jacket 5 remains largely unchanged when the heating device 20 is switched on or off, and on the other hand when the heating device is switched off the coolant in the pipeline 18 is not overheated by the component temperature of the cylinder head 3.

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)

Claims (3)

1. Culasse d'un moteur à combustion interne refroidi par liquide, comportant
- plusieurs sections de parois de chambre de combustion (6) disposées en ligne pour cylindres moteur (7),
- au moins un orifice de sortie (9 et 10) de l'agent de refroidissement placé dans une première zone d'extrémité (8) de la ligne, par rapport à la culasse (3) provenant de l'enveloppe de refroidissement (5) de la culasse et destiné à une conduite de circulation à un refroidisseur (11) et à une conduite en dérivation (12) vers un orifice d'entrée de l'enveloppe de refroidissement (pompe de l'agent de refroidissement (16)),
- un autre orifice de sortie (23) de l'enveloppe de refroidissement (5) de la culasse, disposée dans la deuxième zone (17) d'extrémité opposée à la ligne par rapport à la culasse (3) et destinée à une conduite de circulation de chauffage (19) à un dispositif de chauffage (20), caractérisée en ce que,
- à l'orifice de sortie (23) de la conduite de circulation (19) du chauffage et à l'intérieur de l'enveloppe de refroidissement (5), on a raccordé à cet orifice de sortie (23) une conduite (18), qui se termine librement dans l'enveloppe de refroidissement (5) - abstraction faite des points d'appui (24) - à une certaine distance de la deuxième zone d'extrémité (17) de la ligne, de sorte que le passage du culasse dans l'enveloppe de refroidissement (5) de la culasse reste largement inchangé avec ou sans le dispositif de chauffage en service.
2. Culasse selon la revendication 1, caractérisée en ce que la conduite (18) est réalisée de façon essentiellement cylindrique avec un orifice terminal d'entrée (22) situé dans l'enveloppe de refroidissement (5).
3. Culasse selon la revendication 1, caractérisé en ce qu'un embout de raccord pour une durite (27), monobloc, est adapté à la conduite (18).
EP87106132A 1986-05-09 1987-04-28 Culasse pour moteur à combustion interne refroidi par eau Expired - Lifetime EP0244735B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3615642A DE3615642C1 (de) 1986-05-09 1986-05-09 Zylinderkopf fuer fluessigkeits-gekuehlte Brennkraftmaschinen
DE3615642 1986-05-09

Publications (3)

Publication Number Publication Date
EP0244735A2 EP0244735A2 (fr) 1987-11-11
EP0244735A3 EP0244735A3 (en) 1988-12-28
EP0244735B1 true EP0244735B1 (fr) 1990-11-14

Family

ID=6300460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106132A Expired - Lifetime EP0244735B1 (fr) 1986-05-09 1987-04-28 Culasse pour moteur à combustion interne refroidi par eau

Country Status (3)

Country Link
EP (1) EP0244735B1 (fr)
DE (2) DE3615642C1 (fr)
ES (1) ES2019076B3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857412B1 (fr) * 2003-07-07 2005-09-23 Renault Sa Culasse a conduit incline et moule pour une telle culasse
DE10338778B4 (de) * 2003-08-23 2006-05-18 Adam Opel Ag Zylinderkopf für eine Verbrennungsmaschine
FR2886341B1 (fr) * 2005-05-27 2007-08-03 Renault Sas Moteur thermique comportant un circuit de derivation de refroidissement integre a la culasse
AT506468B1 (de) 2009-03-24 2010-12-15 Avl List Gmbh Zylinderkopf einer brennkraftmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1354335A (en) * 1920-01-14 1920-09-28 Alden E Osborn Inverted-head-engine water-jacket
DE667420C (de) * 1936-09-18 1938-11-11 Adam Opel Akt Ges Fluessigkeitskuehleinrichtung fuer Zylinderbloecke mehrzylindriger Brennkraftmaschinen
US2853063A (en) * 1954-07-12 1958-09-23 Gen Motors Corp Engine with reversible heads, couplings, and gaskets
DE2631121A1 (de) * 1976-07-10 1978-01-12 Daimler Benz Ag Fluessigkeitsgekuehlte brennkraftmaschine
DE2904167C2 (de) * 1979-02-03 1982-07-08 Bayerische Motoren Werke AG, 8000 München Im Druckgießverfahren herstellbarer Zylinderkopf für wassergekühlte Brennkraftmaschinen
DE3240198A1 (de) * 1982-10-29 1984-05-03 Bayerische Motoren Werke AG, 8000 München Fluessigkeitsgekuehlte, temperaturgeregelte brennkraftmaschine
DE3337428A1 (de) * 1983-10-14 1985-04-25 Bayerische Motoren Werke AG, 8000 München Fluessigkeitsgekuehlter zylinderkopf fuer brennkraftmaschinen

Also Published As

Publication number Publication date
DE3766150D1 (de) 1990-12-20
DE3615642C1 (de) 1987-07-30
EP0244735A3 (en) 1988-12-28
EP0244735A2 (fr) 1987-11-11
ES2019076B3 (es) 1991-06-01

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