EP1126152B1 - Culasse pour un moteur à combustion interne - Google Patents

Culasse pour un moteur à combustion interne Download PDF

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Publication number
EP1126152B1
EP1126152B1 EP01102934A EP01102934A EP1126152B1 EP 1126152 B1 EP1126152 B1 EP 1126152B1 EP 01102934 A EP01102934 A EP 01102934A EP 01102934 A EP01102934 A EP 01102934A EP 1126152 B1 EP1126152 B1 EP 1126152B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
cooling
coolant
cylinder
head according
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.)
Revoked
Application number
EP01102934A
Other languages
German (de)
English (en)
Other versions
EP1126152A3 (fr
EP1126152A2 (fr
Inventor
David James Haugen
Fernando Sandoval
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.)
Deere and Co
Original Assignee
Deere and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24008677&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1126152(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP1126152A2 publication Critical patent/EP1126152A2/fr
Publication of EP1126152A3 publication Critical patent/EP1126152A3/fr
Application granted granted Critical
Publication of EP1126152B1 publication Critical patent/EP1126152B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F02F1/42—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
    • 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
    • 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
    • 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
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the invention relates to a cylinder head for an internal combustion engine having at least two cylinders with a bottom wall which forms an ignition surface for each of the cylinders, and a hollow interior, which forms a cooling water jacket, wherein the cooling water jacket a lower, adjacent to the ignition surfaces Küllebene with the cylinders associated coolant inlets and an upper transport plane having at least one coolant outlet, and the lowerméebene with the upper transport plane above the cylinders associated channels is in communication, and an internal combustion engine.
  • Heavy diesel engines typically include a coolant jacket which transports coolant in a cylinder head from a region adjacent the top dead center of a cylinder farthest from a coolant outlet through the remaining cylinder head to the coolant outlet via respective regions of the remaining cylinders.
  • the area of the cylinder closest to the coolant outlet is thus hotter than the corresponding area of the cylinder farthest from the coolant outlet.
  • US-A-4,291,650 shows a cylinder head with a coolant chamber divided by a wall into a lower and an upper region.
  • the wall has an opening adjacent to each combustion chamber permitting coolant exchange between the upper and lower regions.
  • DE-A1-37 10 630 shows a liquid-cooled cylinder head according to claim 1, Part 1, the individual cooling water chambers are connected via risers with a drain-collecting channel in communication, which extends over the entire length of the cylinder head.
  • a cooling water jacket with two levels is provided for cooling the cylinder head.
  • the lower conductive cooling plane allows the coolant to flow from the engine block into the cylinder head to cool the firing surface of only one cylinder.
  • the coolant flows upwardly from the conductive cooling plane to a transport plane having a cross-flow channel which directs the coolant to an orifice without the coolant contacting the direct cooling of the firing surface of another cylinder.
  • a channel is provided between thedeebene and the upper transport level.
  • this is an annular channel surrounding the injector cuffs.
  • access to the bore surfaces from outside the cylinder head is possible, so that the surface of the bore can be machined. Since the bore surface in the cylinder head as well as the injector cuff surfaces are machined, the size of the channel is within manufacturing and not within molding tolerances. This results in very small flow variations from one cylinder to another, causing uniform cooling of the cylinders.
  • a cylinder head according to the present invention is shown and designated substantially by reference numeral 10.
  • the cylinder head 10 has a cast-iron block 12 which is cast with a plurality of passages in a known manner.
  • the passages include bores 14 for receiving bolts, bores 16 for fuel supply or injection nozzles, a plurality of passages for intake and exhaust valves (shown in Figures 2 and 3) as well as passages forming a cooling water jacket, as described in more detail below becomes.
  • a bottom wall 20 forms the underside of the cylinder head 10, which forms the top dead center of each cylinder and is referred to below as the ignition surface 18.
  • the firing surface 18 forms the top of the combustion chamber of each cylinder and is the area of the cylinder head 10 that requires the most cooling.
  • the cooling water jacket of the cylinder head 10 provides a conductive cooling of the ignition surface 18th
  • the cylinder head 10 of the present invention is provided with a cooling water jacket disposed in two separate planes of the cylinder head 10.
  • a lower, conductive cooling plane has a lower chamber 22, which is shown in FIGS. 1 and 2.
  • the lower chamber 22 is arranged directly above the lower wall 20 of the cylinder head 10, the underside of which forms the ignition surface 18.
  • the lower chamber 22 is substantially rectangular, as can best be seen in Figure 2, and has in its four corners coolant inlets 24, the cooling liquid of take the cooling water jacket of the block 12.
  • the lower chamber 22 encloses the passage 26 to the inlet of air and the passage 28 to the outlet of exhaust gases.
  • a plurality of branches 34 extend from the lower chamber 22, which is formed by portions of the casting core, which holds the core in the mold.
  • the branches 34 are closed by freeze plug 48.
  • the lower chamber 22 has branches 30 for coolant flow between the passages 26 and 28 to the center of the lower chamber 22 surrounding the injector collar 32.
  • the injector collar 32 is fitted in the bores 16 and extends through the firing surface 18.
  • a seal 35 is formed between the injector collar 32 and the bottom wall 20 to prevent leakage of coolant from the lower chamber 22 into the combustion chamber below.
  • An O-ring seal 47 seals the top of the nozzle sleeve 32 against the block 12.
  • the coolant jacket further has an upper transport plane, which has a cross-flow channel 36 and a connection region 38.
  • the transport surface is connected to the lower cooling surface via an annular channel 40 formed between the injector collar 32 and an inner surface 42 of the bore 16.
  • the cross-flow passage 36 is shown in FIG. 3 and directs coolant to a reservoir 52 at one end of the cylinder head 10.
  • the cross-flow passage 36 is also provided with branches 54.
  • the branches 54 are formed by portions of the casting core which hold the core in the mold. These branches are closed by additional plugs 56.
  • Figure 3 also shows the air inlet and exhaust gas outlet passages 26, 28 through the Cylinder head 10, as well as the valve guides 64, 66 for the intake and exhaust valves.
  • the reservoir 52 has a cold fluid bypass bypass outlet 68, controlled by a thermostat, not shown, mounted in an upper opening 70 in the reservoir 52 (shown in FIG. 5). Another port in the reservoir 52 is the coolant outlet 72 for heated coolant exiting the cylinder head 10 and is also controlled by a thermostat.
  • the reservoir 52 also has a plug 74.
  • Coolant flows into the cylinder head 10 via the inlets 24 in the four corner regions of the lower chamber 22.
  • the coolant flows radially inwardly around the inlet and outlet passages 26, 28 to the center of the lower chamber 22 and to the annular channel 40. There, the coolant rises to the transport plane, where the coolant passes through the connecting portion 38 to the cross-flow channel 36. Once in the cross flow channel 36, the coolant is directed to the coolant outlet 72 at the end of the cylinder head 10.
  • the lower, directed coolant plane of the coolant jacket has a lower cooling chamber 22 for each cylinder of the multi-cylinder drive, wherein the lower cooling chambers 22 are arranged separately from each other.
  • An area of a lower cooling chamber 22 of an adjacent cylinder is shown in FIG.
  • the adjacent lower cooling chambers 22 are separated by a wall in the cast block 12. Coolant must flow from the lower cooling chamber 22 through the annular channel 40 to the upper transport plane where the coolant is directed through the cross-flow channel 36 to the opening 72 (FIG. 5) at one end of the cylinder head 10.
  • Coolant that has been heated from the firing surface in a lower cooling chamber 22 does not flow into another lower cooling chamber 22.
  • the firing surface 18 of each cylinder experiences the same degree of cooling, thereby providing better control of the mean temperature in the lower cooling chamber 22 and the firing surface 18. There are minor variations in the temperatures between the firing surfaces 18 of the various cylinders.
  • a feature of the cylinder head 10 that improves the control of the flow of coolant through the cylinder head 10 is that the inner surface 42 of the bore 16 is a machined surface, as is the outer surface of the injector sleeve 32.
  • the size of the annular channels 40 is controlled within machining tolerances rather than casting tolerances, thereby more accurately controlling variations in the size of the channels 40 between the cylinders.
  • the precise control of the size of the annular channel 40 is made possible by arranging the channels 40 in the inlet ports, while allowing external access for machining the bore surfaces.
  • FIG. 1 An alternative embodiment is shown in FIG. There, a small communication passage 50 is provided through the wall 44 between adjacent lower cooling chambers 22 on one or both sides.
  • the communication passage 50 is the result of connection areas of the sand core forming the lower cooling chambers 22 in the block 12. Greater stability of the core can be provided by connecting the lower cooling chambers 22 to a small joint forming the communication passages 50.
  • the coolant flow described above is likely to result in little replacement of coolant from one lower cooling chamber 22 to another. As a result, the advantages described above can be substantially achieved even if there is a connection between adjacent lower cooling chambers 22.

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)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Claims (9)

  1. Culasse (10) pour un moteur à combustion interne comportant au moins deux cylindres, avec une paroi inférieure, qui forme une surface d'allumage (18) pour chacun des cylindres, et un intérieur creux, qui forme un corps pour eau de refroidissement, le corps pour eau de refroidissement comportant un plan de refroidissement inférieur, adjacent aux surfaces d'allumage (18) et muni d'entrées pour fluide de refroidissement (24), et un plan de transport supérieur muni d'au moins une sortie pour fluide de refroidissement (72), et le plan de refroidissement inférieur étant relié au plan de transport supérieur par l'intermédiaire de canaux (40) associés aux cylindres, caractérisée en ce qu'un manchon à injecteurs (32) est agencé dans le canal (40) et le canal (40) est formé entre la face intérieure d'une forure (16), prévue pour recevoir un injecteur, et le manchon à injecteurs (32).
  2. Culasse selon la revendication 1, caractérisée en ce que la face intérieure (42) de la forure (16) est une surface usinée.
  3. Culasse selon la revendication 1 ou 2, caractérisée en ce que le plan de refroidissement comporte des chambres de refroidissement (22) adjacentes aux surfaces d'allumage (18).
  4. Culasse selon la revendication 3, caractérisée en ce que les chambres de refroidissement (22) sont au moins sensiblement séparées l'une de l'autre.
  5. Culasse selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'au moins l'un des canaux (40) est formé par une forure avec une surface réalisée de préférence mécaniquement.
  6. Culasse selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'au moins l'un des canaux (40) est au moins sensiblement annulaire.
  7. Culasse selon une ou plusieurs des revendications 2 à 6, caractérisée en ce qu'au moins l'un des canaux (40) est dérivé au moins sensiblement au centre d'une chambre de refroidissement (22).
  8. Culasse selon une ou plusieurs des revendications 2 à 7, caractérisée en ce que la chambre de refroidissement (22) comporte une pluralité d'entrées pour fluide de refroidissement (24), qui débouchent dans la chambre de refroidissement (22) si possible loin du canal (40) et/ou en ce que la chambre de refroidissement (22) est au moins sensiblement rectangulaire et les entrées pour fluide de refroidissement (24) débouchent de préférence dans les zones d'angle de la chambre de refroidissement (22).
  9. Moteur à combustion interne comportant une culasse (10) selon une ou plusieurs des revendications précédentes.
EP01102934A 2000-02-16 2001-02-08 Culasse pour un moteur à combustion interne Revoked EP1126152B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/505,022 US6279516B1 (en) 2000-02-16 2000-02-16 Cylinder head with two-plane water jacket
US505022 2000-02-16

Publications (3)

Publication Number Publication Date
EP1126152A2 EP1126152A2 (fr) 2001-08-22
EP1126152A3 EP1126152A3 (fr) 2002-06-05
EP1126152B1 true EP1126152B1 (fr) 2006-09-13

Family

ID=24008677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102934A Revoked EP1126152B1 (fr) 2000-02-16 2001-02-08 Culasse pour un moteur à combustion interne

Country Status (6)

Country Link
US (1) US6279516B1 (fr)
EP (1) EP1126152B1 (fr)
AT (1) ATE339609T1 (fr)
CA (1) CA2327642C (fr)
DE (1) DE50110973D1 (fr)
ZA (1) ZA200101287B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011001231A1 (de) 2011-03-11 2012-09-13 Fev Gmbh Injektorhülsenform mit Kühlung
WO2013020357A1 (fr) * 2011-08-05 2013-02-14 无锡开普动力有限公司 Mécanisme de refroidissement de la culasse d'un moteur à quatre temps

Families Citing this family (29)

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AT5301U1 (de) * 2001-01-29 2002-05-27 Avl List Gmbh Zylinderkopf für mehrere zylinder
US6626160B2 (en) * 2001-06-01 2003-09-30 General Motors Corporation Engine with air-assisted fuel injection and engine integrated air feed
JP3730900B2 (ja) * 2001-11-02 2006-01-05 本田技研工業株式会社 内燃機関
AT6342U1 (de) * 2002-07-23 2003-08-25 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte mehrzylinder-brennkraftmaschine
US6769409B2 (en) * 2002-10-11 2004-08-03 Caterpillar Inc Fuel injector supporting device
AT6654U1 (de) * 2002-10-31 2004-01-26 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte mehrzylinder-brennkraftmaschine
US7021250B2 (en) 2003-06-11 2006-04-04 Daimlerchrysler Corporation Precision cooling system
DE112004002081B4 (de) * 2003-11-03 2016-09-15 Avl List Gmbh Brennkraftmaschine
AT414023B (de) * 2003-11-03 2006-08-15 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte brennkraftmaschine
AT414022B (de) * 2004-05-04 2006-08-15 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte brennkraftmaschine
AT413860B (de) * 2003-11-27 2006-06-15 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte mehrzylinder-brennkraftmaschine
AT500628B1 (de) * 2005-11-04 2007-12-15 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte brennkraftmaschine
JP4756381B2 (ja) * 2007-02-07 2011-08-24 トヨタ自動車株式会社 多気筒エンジンの冷却装置
US8544443B2 (en) 2008-03-12 2013-10-01 Cameron International Corporation Pre-chamber
US9938886B2 (en) 2008-03-12 2018-04-10 Ge Oil & Gas Compression Systems, Llc Internal combustion engine with shrouded injection valve and pre-combustion chamber system
US9382887B2 (en) 2009-09-23 2016-07-05 Cummins Intellectual Property. Inc. Engine component seal assembly and method of sealing a coolant passage from an engine component
US8230838B2 (en) * 2009-09-23 2012-07-31 Cummins Intellectual Properties, Inc. Injector seal assembly and method of sealing a coolant passage from an injector
JP5553055B2 (ja) * 2010-06-29 2014-07-16 マツダ株式会社 水冷式エンジンの冷却装置
US9080540B2 (en) * 2010-08-11 2015-07-14 Cummins Inc. Engine with injector mounting and cooling arrangement
EP2644861B1 (fr) * 2012-03-28 2016-05-18 Honda Motor Co., Ltd. Motocycle avec structure de système de refroidissement et moteur à combustion interne refroidi par eau
GB2516647B (en) 2013-07-29 2016-02-03 Jaguar Land Rover Ltd Vehicle water jacket
USD771144S1 (en) * 2014-05-06 2016-11-08 Champion Engine Technology, LLC Internal combustion engine cylinder head intake port
US10605213B2 (en) * 2015-08-21 2020-03-31 Cummins Inc. Nozzle combustion shield and sealing member with improved heat transfer capabilities
US10041440B2 (en) * 2015-12-02 2018-08-07 Aaron Di Pietro Fuel injector insert
CN109854403B (zh) * 2018-12-21 2020-08-21 潍柴动力股份有限公司 气缸盖及具有其的发动机
NO346039B1 (en) * 2019-06-17 2022-01-17 Bergen Engines As Cooling sleeve for a cylinder head
KR20210003434A (ko) * 2019-07-02 2021-01-12 현대자동차주식회사 엔진의 워터자켓
US11585288B1 (en) * 2021-11-19 2023-02-21 Caterpillar Inc. Cylinder head assembly and axially located igniter sleeve for same
US12215651B1 (en) * 2023-12-18 2025-02-04 Caterpillar Inc. Cylinder head configured for improved cooling performance and manufacturability

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011001231A1 (de) 2011-03-11 2012-09-13 Fev Gmbh Injektorhülsenform mit Kühlung
WO2013020357A1 (fr) * 2011-08-05 2013-02-14 无锡开普动力有限公司 Mécanisme de refroidissement de la culasse d'un moteur à quatre temps

Also Published As

Publication number Publication date
ATE339609T1 (de) 2006-10-15
ZA200101287B (en) 2002-08-15
DE50110973D1 (de) 2006-10-26
CA2327642A1 (fr) 2001-08-16
EP1126152A3 (fr) 2002-06-05
EP1126152A2 (fr) 2001-08-22
US6279516B1 (en) 2001-08-28
CA2327642C (fr) 2003-03-18

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