EP1008733A2 - Culasse refroidie à l'huile - Google Patents

Culasse refroidie à l'huile Download PDF

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Publication number
EP1008733A2
EP1008733A2 EP99123616A EP99123616A EP1008733A2 EP 1008733 A2 EP1008733 A2 EP 1008733A2 EP 99123616 A EP99123616 A EP 99123616A EP 99123616 A EP99123616 A EP 99123616A EP 1008733 A2 EP1008733 A2 EP 1008733A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cooling
internal combustion
combustion engine
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
EP99123616A
Other languages
German (de)
English (en)
Other versions
EP1008733A3 (fr
EP1008733B1 (fr
Inventor
Lothar Bauer
Werner Lemme
Reinhard Rechberg
Hans-Peter Mahlberg
Herbert Schleiermacher
Wolfgang Strusch
Harald Siegert
Frank Dr. Schmitt
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.)
Deutz AG
Original Assignee
Deutz 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 Deutz AG filed Critical Deutz AG
Publication of EP1008733A2 publication Critical patent/EP1008733A2/fr
Publication of EP1008733A3 publication Critical patent/EP1008733A3/fr
Application granted granted Critical
Publication of EP1008733B1 publication Critical patent/EP1008733B1/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
    • 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
    • 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
    • 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
    • F01P2003/006—Liquid cooling the liquid being oil
    • 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
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/34—Lateral camshaft position
    • 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
    • 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
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the invention relates to an internal combustion engine with a cylinder crankcase, the at least one covered by a cylinder head Has cylinder in which a connecting rod to one in the Cylinder crankcase mounted crankshaft articulated piston is movable, the internal combustion engine cooling oil spaces, a Lubrication system and an oil pump which is in flow connection stand, each cylinder a cylinder cooling chamber and each Cylinder head has at least one cylinder head cooling chamber, wherein the individual cylinder cold rooms and the individual cylinder head cold rooms a row of cylinders with each other and the cylinder cooling rooms and the cylinder head cooling chambers as a whole are connected in series and a return line from an end cylinder head cooling space back along the row of cylinder heads to the input side Cylinder head cooling chamber is arranged and being in the return line
  • One web hole per cylinder via a connecting hole flows into.
  • Such an internal combustion engine is known from DE 43 25 141 A1.
  • This internal combustion engine is oil-cooled in the specified manner.
  • the cooling system is designed so that at a maximum provided power the internal combustion engine, especially in the area Piston, cylinder and cylinder head is reliably cooled.
  • the invention has for its object the cooling system of such to further develop oil-cooled internal combustion engine in the form that even more effective cooling, especially of the cylinder head guaranteed even with further increase in performance of the internal combustion engine is.
  • a second return line arranged at least approximately parallel to the first return line and is connected to the end cylinder head cooling space. This design ensures that part of the through the cylinder head flowing cooling oil deliberately to the end Cylinder head cooling chamber is guided and only in this unhindered the second return line can drain.
  • the second return line runs along the area of the valve stem seals of the exhaust valves and in the immediate vicinity of a vent hole, which Oil-containing air to the crankcase ventilation socket integrated in the cylinder head cover leads without further confluence or branch of a channel.
  • the thermal highly stressed area of the exhaust valves especially in the area the valve stem seals, is intensively cooled and on the other hand Coking of the oil-containing crankcase leakage gases is prevented.
  • the cylinder cooling rooms as glasses-shaped cold rooms in the one adjacent to the circumference of the cylinder Cylinder head area formed. This ensures a low flow resistance flow around the individual cylinders, wherein in that the flow cross-sections of adjacent cylinders the glasses-shaped cold rooms are on different sides, intensive and good cooling of the endangered area between two cylinders is guaranteed.
  • the return lines in the cylinder head are at least approximated arranged parallel to each other and in the crankcase or the oil pan of the internal combustion engine merged.
  • Both lines can preferably be arranged in parallel, for example in a single drilling process.
  • the outlet channel is through a Connection to the surrounding air gap from the cylinder head floor largely decoupled and by the also glasses-shaped Cylinder head cooling space below the air gap is an extensive one Separation of the heat flow from the inside to the inside outer area of the cylinder head base.
  • this middle Cooling channel can also be a very targeted cooling thermally high stressed parts of the cylinder head. It is in further Embodiment of the invention, this middle cooling channel meandering trained and runs from an internal combustion engine end side the opposite end of the engine.
  • This middle one Cooling channel is formed by appropriately trained cores during the casting process of the cylinder head.
  • the middle cooling channel largely encloses and affects the individual inlet channels however, the outlet channels as little as possible.
  • the middle cooling channel in turn close to the injection nozzle bores passed by, so that the injection valve is again intensively cooled.
  • the middle cooling channel with the oil space of the crankcase connects. Through this separate discharge the cooling oil from the middle cooling channel is an influence of the cooling oil flow through in particular the first and second return lines locked out.
  • the cylinder head 1 according to FIG. 1 comes with a 4-cylinder self-igniting Internal combustion engine for use.
  • the cylinder head designed as a block cylinder head and is especially made of Cast iron.
  • the cylinder head can too designed for other numbers of cylinders, for example 2- or 3-cylinder and cast from other materials, such as light metal his.
  • the internal combustion engine can be used as an in-line engine or be designed as a V-engine.
  • the cylinder head is still a 2-valve cylinder head with one Inlet and an exhaust valve 2 provided per cylinder. Be operated the intake valves and exhaust valves 2 from one in the crankcase the internal combustion engine mounted camshaft each own push rods and rocker arms 3.
  • the rocker arms 3 are open a shaft in the cylinder head 1 and with conventional valve lash adjusters 4 provided.
  • the bearings of the rocker arms 3 on the shaft are lubricated by oil holes, not shown.
  • the valves are - as shown in the exhaust valve 2 - via valve springs 5, which are on the cylinder head 1 and on with the valves support connected valve spring retainers, set in cylinder head 1.
  • the valve stems of the valves are over valve stem seals 7 sealed against the cylinder head 1.
  • valve stem seals 7 prevent lubricating oil from entering the gap between the valve stem and the bore surrounding it.
  • Right and left along the valve stems run in the area close a first one for valve stem seals 7 along the row of cylinders Return line 8a and a second return line 8b for the in the Cylinder head 1 introduced cooling oil.
  • the valve stem seals 7 are thermal against the hot exhaust gases in the outlet channels 9 heating cylinder head areas, which are located between the valve stem seals 7 and the outlet channels 9 are isolated. Farther the outlet channels 9 are in communication with the environment standing air gaps 10 largely from the cylinder head floor 11 decoupled.
  • the cylinder head cooling rooms 12 In the bottom of the cylinder head are the cylinder head cooling rooms 12 as an annular or glasses-shaped Recesses are inserted, which are in the extension of the neighboring Cylinder cold rooms extend.
  • the crankcase otherwise designed as a so-called open deck.
  • the cylinder head cold rooms 12a, 12b, 12c, 12d are part of the casting process Possibilities embedded deep in the cylinder head base 11. This allows a relatively high amount of cooling oil through the cylinder head cooling chambers 12a, 12b, 12c, 12d are promoted. Otherwise they are Cylinder head cold rooms 12a, 12b, 12c, 12d from the cylinder cold rooms separated by the cylinder head gasket and it is for the Cooling oil transfer only overflow openings 13 (Fig.
  • Fig. 1 is also an oil-containing crankcase bleeding vent hole 24 recognizable. By the next to it Bore 8b prevents the oily gases from coking.
  • FIG. 2 is the cooling diagram of a 4-cylinder head 1 shown schematically.
  • the ring-shaped cylinder head cold rooms 12a, 12b, 12c, 12d have an inlet-side cylinder head cooling space 12a in which the cooling oil from the underlying Cylinder cooling chamber via transfer openings 13 in the cylinder head gasket entry.
  • Part of the incoming cooling oil is (through the Size or depth of the flow connections favored) directly along the cylinder head cooling chambers 12a, 12b, 12c up to the end cylinder head cooling chamber 12d and there via a connecting line 14 passed into the second return line 8b.
  • This Return line 8b runs - as previously stated - along the cylinder head 1 and opens into the cylinder head area on the inlet side into a drain line 15b.
  • This drain line 15b carries the cooling oil through the cylinder head 1 back into the crankcase, being in the crankcase meets a drain line 15a.
  • This drain line 15a leads the coming from the return line 8a Cooling oil back.
  • the return line 8a is over each cylinder Web bores 16a, 16b, 16c, 16d and connecting bores 17a, 17b, 17c, 17d with the respective cylinder head cooling spaces 12a, 12b, 12c, 12d connected.
  • the cylinder head cooling chamber is also located here 12d via a connecting line 14a to the return line 8a connected.
  • Cooling oil via transfer openings 13 from the cylinder cooling chamber underneath into the cylinder head cooling space 12a to run therefrom the subsequent cylinder head cooling chambers 12b, 12c to the end cylinder head cooling chamber 12d to be directed.
  • the cooling oil passes through transfers 20 and a branch channel 20 ' on the "cold" injection side of the cylinder head cooling chamber, which is also interrupted here 12d in the middle cooling channel 19.
  • This middle Cooling channel 19 is meandering and extends to the input side cylinder head side.
  • the middle encloses Cooling channel largely the inlet channels and is also close to the Injection nozzle holes passed.
  • the middle cooling channel 19 is descending Opening 23 connected to the oil space of the crankcase.
  • the first and second return lines 8a, 8b are fed in parallel from inlets 21 in this embodiment above the transfer openings 13 from the cylinder head cooling chamber Branch 12a.
  • the cooling oil also passed via leads 22 into the central cooling channel 19.

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)
  • Lubrication Of Internal Combustion Engines (AREA)
EP99123616A 1998-12-12 1999-11-26 Culasse refroidie à l'huile Expired - Lifetime EP1008733B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19857458A DE19857458A1 (de) 1998-12-12 1998-12-12 Ölgekühlter Zylinderkopf
DE19857458 1998-12-12

Publications (3)

Publication Number Publication Date
EP1008733A2 true EP1008733A2 (fr) 2000-06-14
EP1008733A3 EP1008733A3 (fr) 2000-12-06
EP1008733B1 EP1008733B1 (fr) 2003-08-13

Family

ID=7890923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123616A Expired - Lifetime EP1008733B1 (fr) 1998-12-12 1999-11-26 Culasse refroidie à l'huile

Country Status (2)

Country Link
EP (1) EP1008733B1 (fr)
DE (2) DE19857458A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510680A3 (fr) * 2003-08-28 2005-11-30 DEUTZ Aktiengesellschaft Noyau minimalisé pour une culasse
CN108291474A (zh) * 2015-12-01 2018-07-17 标致雪铁龙汽车股份有限公司 包括集成有气缸盖脱气功能的发动机支撑件的内燃机组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT505591B8 (de) 2008-10-02 2010-04-15 Avl List Gmbh Brennkraftmaschine mit einem zylinderkopf
JP6205730B2 (ja) 2013-01-21 2017-10-04 スズキ株式会社 シリンダヘッド

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054431C3 (de) * 1970-11-05 1974-03-14 Daimler Benz Ag Mehrzylindrige flüssigkeitsgekühlte Brennkraftmaschine mit Zwangsumlaufkühlung
US4131093A (en) * 1973-06-21 1978-12-26 National Research Development Corporation Internal combustion engines
JPS5352969Y2 (fr) * 1975-04-25 1978-12-18
AT389565B (de) * 1980-06-16 1989-12-27 List Hans Wassergekuehlte mehrzylinder-brennkraftmaschine
FR2660694B1 (fr) * 1990-04-05 1992-07-31 Peugeot Moteur a combustion interne comprenant un circuit de refroidissement perfectionne.
DE4325141A1 (de) * 1993-07-27 1995-02-02 Kloeckner Humboldt Deutz Ag Brennkraftmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510680A3 (fr) * 2003-08-28 2005-11-30 DEUTZ Aktiengesellschaft Noyau minimalisé pour une culasse
CN108291474A (zh) * 2015-12-01 2018-07-17 标致雪铁龙汽车股份有限公司 包括集成有气缸盖脱气功能的发动机支撑件的内燃机组件

Also Published As

Publication number Publication date
DE19857458A1 (de) 2000-06-15
DE59906579D1 (de) 2003-09-18
EP1008733A3 (fr) 2000-12-06
EP1008733B1 (fr) 2003-08-13

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