EP1884647A2 - Tête de cylindre refroidie par du liquide pour un moteur à combustion interne - Google Patents

Tête de cylindre refroidie par du liquide pour un moteur à combustion interne Download PDF

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Publication number
EP1884647A2
EP1884647A2 EP07013424A EP07013424A EP1884647A2 EP 1884647 A2 EP1884647 A2 EP 1884647A2 EP 07013424 A EP07013424 A EP 07013424A EP 07013424 A EP07013424 A EP 07013424A EP 1884647 A2 EP1884647 A2 EP 1884647A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
dome
flow guide
liquid
guide rib
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
EP07013424A
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German (de)
English (en)
Other versions
EP1884647B1 (fr
EP1884647A3 (fr
Inventor
Peter Ausserlechner
Gerald Winter
Herbert Holzinger
Wolfgang Ritzlmayr
Robert Ehart
Josef Spiel
Robert Auer
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
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Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1884647A2 publication Critical patent/EP1884647A2/fr
Publication of EP1884647A3 publication Critical patent/EP1884647A3/fr
Application granted granted Critical
Publication of EP1884647B1 publication Critical patent/EP1884647B1/fr
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Anticipated expiration legal-status Critical

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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
    • F02F1/42—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

Definitions

  • the invention relates to a liquid-cooled cylinder head for an internal combustion engine with the features of the preamble of patent claim 1.
  • each cooling liquid space is formed by a single annular space surrounding the dome, which only passes through the gas exchange inlet and gas exchange outlet channels and the valve guides for the gas exchange outlet valve (s) is.
  • the peripheral wall of the annulus has vertical ribs extending toward the mandrel.
  • the drain channel of each annulus empties into a drain collection channel extending along the cylinder head.
  • a liquid-cooled cylinder head for an internal combustion engine for the BMW straight-six diesel engine with the BMW internal designation M 57 is known, which has been used for several years, for example, in the BMW 3 Series and from which the present invention proceeds.
  • the cylinder head is intended for a four-valve internal combustion engine, wherein the cylinder head gas exchange inlet ducts and Gas monauslasskanäle has.
  • the gas exchange outlet ducts like the gas exchange inlet ducts, are arranged in pairs and form a common single exhaust gas outlet duct towards the cylinder head wall.
  • the Gas passiveauslasskanäle are formed by Auslasskanalwanditch that form a gusset inlet side.
  • a dome Adjacent to the gusset, toward the inlet side of the cylinder head, a dome is arranged with a bore in which the fuel injection valve is arranged.
  • the dome and the Auslasskanalwandungen are largely surrounded by a coolant channel, which is acted upon by three inlet bores in a cylinder head parting plane from the crankcase with coolant.
  • the coolant flows through the three coolant inflow openings into the cylinder head, surrounds the exhaust port walls and the area of the valve seat rings in a spectacle shape and continues to flow in the direction of the dome. Starting from the dome, the coolant continues to flow in the direction of the inlet side of the cylinder head and back into the crankcase of the internal combustion engine.
  • liquid-cooled cylinder head Even if the liquid-cooled cylinder head has no disadvantages, it may be that in a further increase in power of the internal combustion engine in the region of the dome forms a hot area.
  • Object of the present invention is to show a measure to achieve even better cooling of the dome.
  • a further improvement of the cooling of the dome is achieved by the embodiment according to claim 2.
  • the production of the cylinder head is particularly preferably carried out according to claim 5.
  • the production of the short-circuit opening can gem. Claim 7 without cutting, z. B. with a casting or machining, z. B. done by drilling or milling.
  • inventive design according to claim 8 either for a self-igniting internal combustion engine that works on the diesel principle or for a gasoline engine with spark ignition can be used.
  • the cylinder head 1 shows a section through a cylinder head 1 perpendicular to its longitudinal axis through a dome 6 for receiving a fuel injection valve in a bore 11.
  • the cylinder head 1 has a coolant channel 2 whose three-dimensional geometry is shown in FIG. In Fig. 1, a sectioned area is shown hatched.
  • the cylinder head 1 is for a self-igniting internal combustion engine with two Gas constituhereinlass- and two Gas constituauslassventilen provided and has an outlet channel with a first Auslrawkanalwandung 3 and a second Auslasskanalwandung 4.
  • the first and the second outlet channel wall 3, 4 merge in the region of a gas outlet from the cylinder head 1 to a common outlet channel 9.
  • the first and second outlet channel wall 3, 4 form the inlet side, on the side facing the coolant channel 2 with each other a gusset 5. Spaced from the Gusset 5 is arranged in the direction of an inlet side of the cylinder head 1 of the dome 6.
  • the cylinder head 1 Starting from a cylinder head separating plane 1 'facing a crankcase, not shown, the cylinder head 1 has a first inlet opening 2', which is arranged centrally between the first and the second outlet channel wall 3, 4. In this first inflow opening 2 'coolant flows from the crankcase into the cylinder head 1.
  • a coolant flow is shown schematically in FIGS. 1 to 4 with arrows. Subsequently, the coolant continues to flow past the dome 6 in the direction of the intake side of the cylinder head 1 and back into the crankcase, not shown, of the internal combustion engine.
  • FIG. 2 shows a plan view of a section of a casting core for the coolant channel 2 of the cylinder head 1 known from the prior art.
  • FIG. 2 shows that, adjacent to the first inlet opening 2 ', in each case geodetically under the first and the second outlet channel wall 3, 4, a second and a third inflow opening 2 ", 2"'for the coolant channel 2 is provided.
  • the coolant is pumped by a coolant pump, not shown, through the three inflow openings 2 ', 2 ", 2''' in the cylinder head 1, wherein the area radially around valve seat rings, not shown, as well as the radially outer region of the first and second outlet channel wall 3, 4. From there flows the coolant, as previously described in the direction of Dom 6 and then on towards the inlet side of the cylinder head. 1
  • a hot region 10 is formed in the lower region of the dome 6.
  • FIG. 3 shows the same cylinder head 1 of FIGS. 1 and 2 is shown again, but with the inventive design of the coolant channel 2.
  • Fig. 3 shows the same section as Fig. 1
  • Fig. 4 shows the same supervision to the portion of the casting core for the coolant channel 2 as shown in FIG. 2.
  • a second flow guide rib 8 is formed on the dome 6, which extends in the direction of the first flow guide rib 7.
  • a flow gap with a width between 2 and 10 mm is formed between the second flow guide rib 8 and the first flow guide rib 7 or the first and the second outlet passage walls 3, 4.
  • relatively little coolant flows geodetically upwards into the coolant channel 2, so that the critical foot region of the dome 6 flows around more strongly with coolant and thus is better cooled.
  • the second flow-guiding rib 8 can be dispensed with if the first flow-guiding rib 7 is shaped correspondingly further in the direction of the dome 6.
  • a preferred thickness of the first and the second flow guide rib 7, 8 is between 3 and 10 mm.
  • the first and the second flow guide ribs 7, 8 are formed integrally with the cylinder head 1 in the same material.
  • the flow guide rib 7 and / or 8 can also be designed as an insert part or a cast-in component.
  • either a fuel injection valve and / or an ignition device can be arranged.
  • the second Strömungsleitrippe 8 may also be designed such that in the flow direction of the coolant, behind the gap between the Strömungsleitrippen 7, 8, no undercut is present, d. H. a wall thickness of the dome 6 behind the gap, geodetically above the second flow guide rib 8 is substantially constant.
  • Fig. 4 it can be seen how the improved flow of the dome 6 is further improved with coolant. While in the prior art the valve seat rings of the gas exchange outlet valves are gland-shaped radially surrounded, according to the invention a short circuit flow between the first inflow opening 2 'and the second and the third inflow opening 2 ", 2'" avoided. Otherwise, the same applies as the embodiment of FIG. 2.
  • FIG. 5 shows the top view of a detail of the cylinder head 1 shown in three dimensions in the region of the first and the second outlet channel walls 3, 4.
  • the gusset region 5, to which the first flow guide rib 7 is formed, is illustrated.
  • the dome 6 is arranged in the direction of the inlet side.
  • the second flow guide rib 8 which extends in the direction of the first flow guide rib 7.
  • FIG. 6 shows a section through a cylinder head 1 configured according to the invention for a second exemplary embodiment in a first production variant. Shown is the region of the first flow guide rib 7 with the coolant channel 2 surrounding the first flow guide rib 7.
  • the first flow guide rib 7 has a short-circuit opening 12 through which the coolant flows. A flow direction of the coolant is shown schematically by arrows. Due to the enlarged surface of the first flow guide rib 7, the cooling of the temperature-critical region is further improved.
  • the short-circuit opening 12 during casting of the cylinder head d. H. non-cutting, co-poured
  • FIG. 7 shows the same section through the cylinder head designed according to the invention as in FIG. 6, but for a second production variant.
  • the short-circuit opening 12 is formed by drilling, i. H. made by machining. A milled short-circuit opening 12 can also be produced.
  • a first flow guide rib 7 in the gusset 5 between the outlet channels and a second flow guide rib 8 on the dome 6 is proposed.
  • the two branches are closed to the lateral overdrives 2 ", 2"
  • Flow guide rib 8 am Dom 6 is routed between the exhaust valves and the Dom 6.
  • the first Strömungsleitrippe 7 between the exhaust ports is made very thin, on the one hand to influence the stiffness of the cylinder head 1 only slightly and not to disturb the flow of coolant on the upper deck of the coolant jacket on the other hand.
  • the second flow guide rib 8 on the dome 6 and the first flow guide rib 7 between the outlet channels are separated from each other by a thin gap. This allows a reduced flow of the coolant from bottom to top.
  • the second flow guide rib 8 on the dome 6 is not connected to the outlet channels, so that channel cracks can be avoided.
  • the coolant flow of the central passage 2 ' can be steered as desired and a component temperature reduction can be achieved, which leads to a substantial increase in fatigue strength.
  • the production of the casting core is facilitated by the division of the flow guide ribs 7, 8.
  • the first flow guide rib 7, for example, mitgeformt between the outlet channels with a lateral slide.
  • the second flow guide rib 8 on the dome 6 can be produced, for example, by an insert in the region of the inlet channels or by a slide which is integrated in the upper or lower half of the core tool.
  • the width and the shape of the two Strömungsleitrippen 7, 8 can also be easily adapted.

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)
EP20070013424 2006-08-04 2007-07-10 Tête de cylindre refroidie par du liquide pour un moteur à combustion interne Active EP1884647B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610036422 DE102006036422A1 (de) 2006-08-04 2006-08-04 Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1884647A2 true EP1884647A2 (fr) 2008-02-06
EP1884647A3 EP1884647A3 (fr) 2008-05-07
EP1884647B1 EP1884647B1 (fr) 2009-04-29

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ID=38481078

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EP (1) EP1884647B1 (fr)
DE (2) DE102006036422A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010122095A1 (fr) * 2009-04-23 2010-10-28 Avl List Gmbh Culasse d'un moteur à combustion interne
WO2012038033A1 (fr) * 2010-09-21 2012-03-29 Bayerische Motoren Werke Aktiengesellschaft Chemise de refroidissement destinée à une culasse refroidie par liquide
CN103352768A (zh) * 2013-07-23 2013-10-16 安徽江淮汽车股份有限公司 一种发动机气缸盖水套
JP2015520331A (ja) * 2012-06-18 2015-07-16 ペルサハーン オートモビール ナショナル エスディーエヌ ビーエイチディーＰｅｒｕｓａｈａａｎ Ｏｔｏｍｏｂｉｌ Ｎａｓｉｏｎａｌ Ｓｄｎ Ｂｈｄ シリンダヘッドを冷却するための方法および装置
WO2016176710A1 (fr) * 2015-05-07 2016-11-10 Avl List Gmbh Culasse destinée à un moteur a combustion interne
CN107061041A (zh) * 2015-11-19 2017-08-18 大众汽车有限公司 带有集成的排气歧管和冷却套的内燃机的气缸盖

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007012907A1 (de) 2007-03-19 2008-09-25 Bayerische Motoren Werke Aktiengesellschaft Zylinderkopf für eine flüssigkeitsgekühlte Brennkraftmaschine
DE102007048021A1 (de) 2007-10-06 2009-04-09 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
DE102008014971A1 (de) 2008-03-19 2009-09-24 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
DE102010036392B4 (de) * 2010-07-14 2021-10-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
US8869758B1 (en) 2013-10-09 2014-10-28 Ford Global Technologies, Llc Exhaust valve bridge and cylinder cooling

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818878A (en) * 1973-04-23 1974-06-25 Gen Motors Corp Improved cylinder head cooling
US4121550A (en) * 1974-08-07 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Liquid-cooled cylinder head
GB2175046A (en) * 1985-05-08 1986-11-19 Audi Ag Fluid-cooled multi-cylinder i.c. engine cylinder head
JPH0674042A (ja) * 1992-08-24 1994-03-15 Daihatsu Motor Co Ltd 四弁式内燃機関におけるシリンダヘッドの構造
US20020129776A1 (en) * 2001-01-29 2002-09-19 Hermann Krenn Cylinder head for a plurality of cylinders
US20040139933A1 (en) * 2002-10-31 2004-07-22 Bertram Obermayer Cylinder head for a liquid-cooled multi-cylinder internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014790B (de) * 1954-06-01 1957-08-29 Ricardo & Co Engineers Abnehmbarer Zylinderkopf fuer fluessigkeitsgekuehlte Dieselmaschinen
DE2452999C2 (de) * 1974-11-08 1982-09-16 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Zylinderkopf für eine wassergekühlte Dieselmaschine
DE19802060A1 (de) * 1998-01-21 1999-07-22 Bayerische Motoren Werke Ag Flüssigkeitsgekühlter Zylinderkopf einer mehrzylindrigen, je Zylinder mehrventiligen Brennkraftmaschine
FR2786815B1 (fr) * 1998-12-04 2001-01-05 Renault Sport Culasses de moteur a combustion interne refroidie par liquide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818878A (en) * 1973-04-23 1974-06-25 Gen Motors Corp Improved cylinder head cooling
US4121550A (en) * 1974-08-07 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Liquid-cooled cylinder head
GB2175046A (en) * 1985-05-08 1986-11-19 Audi Ag Fluid-cooled multi-cylinder i.c. engine cylinder head
JPH0674042A (ja) * 1992-08-24 1994-03-15 Daihatsu Motor Co Ltd 四弁式内燃機関におけるシリンダヘッドの構造
US20020129776A1 (en) * 2001-01-29 2002-09-19 Hermann Krenn Cylinder head for a plurality of cylinders
US20040139933A1 (en) * 2002-10-31 2004-07-22 Bertram Obermayer Cylinder head for a liquid-cooled multi-cylinder internal combustion engine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8662028B2 (en) 2009-04-23 2014-03-04 Avl List Gmbh Cylinder head of an internal combustion engine
WO2010122095A1 (fr) * 2009-04-23 2010-10-28 Avl List Gmbh Culasse d'un moteur à combustion interne
WO2012038033A1 (fr) * 2010-09-21 2012-03-29 Bayerische Motoren Werke Aktiengesellschaft Chemise de refroidissement destinée à une culasse refroidie par liquide
US10634088B2 (en) 2010-09-21 2020-04-28 Bayerische Motoren Werke Aktiengesellschaft Coolant jacket for a liquid-cooled cylinder head
EP2861857A4 (fr) * 2012-06-18 2016-07-06 Perusahaan Otomobil Nasional Sdn Bhd Procédé et appareil pour refroidir une culasse de cylindre
JP2015520331A (ja) * 2012-06-18 2015-07-16 ペルサハーン オートモビール ナショナル エスディーエヌ ビーエイチディーＰｅｒｕｓａｈａａｎ Ｏｔｏｍｏｂｉｌ Ｎａｓｉｏｎａｌ Ｓｄｎ Ｂｈｄ シリンダヘッドを冷却するための方法および装置
CN104854333A (zh) * 2012-06-18 2015-08-19 马来西亚国家汽车工业有限公司 用于冷却汽缸盖的方法和装置
CN103352768B (zh) * 2013-07-23 2016-06-22 安徽江淮汽车股份有限公司 一种发动机气缸盖水套
CN103352768A (zh) * 2013-07-23 2013-10-16 安徽江淮汽车股份有限公司 一种发动机气缸盖水套
WO2016176710A1 (fr) * 2015-05-07 2016-11-10 Avl List Gmbh Culasse destinée à un moteur a combustion interne
CN107667214A (zh) * 2015-05-07 2018-02-06 Avl里斯脱有限公司 一种用于内燃机的汽缸盖
AT517127B1 (de) * 2015-05-07 2019-12-15 Avl List Gmbh Zylinderkopf für eine brennkraftmaschine
US10655559B2 (en) 2015-05-07 2020-05-19 Avl List Gmbh Cylinder head for an internal combustion engine
CN107061041A (zh) * 2015-11-19 2017-08-18 大众汽车有限公司 带有集成的排气歧管和冷却套的内燃机的气缸盖
CN107061041B (zh) * 2015-11-19 2019-06-28 大众汽车有限公司 带有集成的排气歧管和冷却套的内燃机的气缸盖

Also Published As

Publication number Publication date
EP1884647B1 (fr) 2009-04-29
DE102006036422A1 (de) 2008-02-21
DE502007000660D1 (de) 2009-06-10
EP1884647A3 (fr) 2008-05-07

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