US3818878A - Improved cylinder head cooling - Google Patents

Improved cylinder head cooling Download PDF

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Publication number
US3818878A
US3818878A US00353587A US35358773A US3818878A US 3818878 A US3818878 A US 3818878A US 00353587 A US00353587 A US 00353587A US 35358773 A US35358773 A US 35358773A US 3818878 A US3818878 A US 3818878A
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United States
Prior art keywords
coolant
openings
chamber
portions
walls
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Expired - Lifetime
Application number
US00353587A
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English (en)
Inventor
K Zaruba
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.)
Motors Liquidation Co
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Motors Liquidation 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
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to US00353587A priority Critical patent/US3818878A/en
Priority to GB1587674A priority patent/GB1422764A/en
Priority to JP4518674A priority patent/JPS534168B2/ja
Priority to DE2420051A priority patent/DE2420051C3/de
Application granted granted Critical
Publication of US3818878A publication Critical patent/US3818878A/en
Assigned to GENERAL MOTORS CORPORATION reassignment GENERAL MOTORS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO LICENSE RECITED Assignors: GENERAL MOTORS CORPORATION
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
    • F02F1/42—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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • a cylinder head assembly for an internal combustion engine includes lower and upper decks and connecting walls defining a coolant chamber with a plurality of exhaust ports for each cylinder extending through the coolant chamber to the lower deck.
  • a longitudinally extending partial intermediate deck intersects the exhaust port walls and partially defines upper and lower sections of the coolant chamber. Connecting walls enclose portions of the lower section of the chamber intermediate the exhaust-ports of adjacent cylinders.
  • Adequate support for cores used in casting the main body of the cylinder head is provided through openings connecting the enclosed portions of the coolant chamber with the remaining lower portions and upper section.
  • tubular inserts are installed in these openings to block communication of the enclosed chamber portion with the: remaining portions and to direct coolant flow into the enclosed portion from an external. supply. The arrangement forces coolant to flowbetween the adjacent exhaust ports and around the fuel injector tube at each cylinder position before passing to other portions of the coolant chamher.
  • This invention relates to cylinder heads for internal combustion engines and more particularly to provisions for improving cooling of a multi-cylinder engine head assembly while facilitating manufacture of the cast main body.
  • the present invention provides a multi-cylinder engine cylinder head construction inwhich a partial intermediate deck is utilized in portions of the coolant chamber intermediate the exhaust ports defining upper and lower sections of the chamber. Portions of; the lower section intermediate the adjacent cylinder posi tions are enclosed by connecting walls and receive coolant flow. through openings in the lower wall or fire deck. The coolant is then directed between and around the adjacent exhaust port walls, past theinjector tube so that these critical areas are adequately cooled before the coolant is permitted to pass into the other areas of the coolant chamber.
  • the casting of the main cylinder head body is facilitated by the provision of openings connecting with the coolant openings in the lower cylinder head, wall and extending through'the vertical connecting walls, and inv some cases the intermediate deck. These openings are used to interconnect the cores provided for theclosed lower cavity portions with those of the adjacent open lower portions and upper section.of the coolantchamher. After casting, these openings are pluggedby tubular inserts which direct cooling water flow throughthe lower wall into the enclosed lower chamber portions and block connection of these portions with the adjacent upper section andthe openlower portionsof the coolant chamber.
  • FIG. 1 is a longitudinal crossssectional view otTa portion of an engine cylinder headformedaccordingto the invention as viewed inithe planegenerally, indicatedby. the line l-l oi FIG. 3;
  • numeral 10 generally indicates a cylinder head for a multi-cylinder diesel engine formed according to the invention.
  • Cylinder head 10 is in the fonn of an assembly including a cast-machined body 12 having a plurality of cylinder positions and assembled together with a plurality of formed metal injector tubes 14' and coolant-directing insert tubes 16 and 18 arranged in a: manner and for purposes to be subsequently described.
  • V cast-machined body 12 having a plurality of cylinder positions and assembled together with a plurality of formed metal injector tubes 14' and coolant-directing insert tubes 16 and 18 arranged in a: manner and for purposes to be subsequently described.
  • the cast body 1201? thecylinder head assembly includes upper and lower decks 20 and 22,, respectively, connected by an interior side wall 24 and by a peripheral side wall 26 and end walls, only one 28 of which is shown. These interior and peripheral walls enclose anddefine an internal coolant jacket or chamber 30 between the decks 20, 22.
  • exhaust port openings are connected by individual upwardly extending exhaust port-defining walls 36a, b, c, d; 38a, b, c, d, etc. with a generally horizontally extending bifurcated exhaust passage 40 at each cylinder location, openingth'rough the side wall 26 of the cylinder head and havingenclosingwalls 42 extending into the coolant jacket 30.
  • Casting l0further includes a plurality of columns 43 through 48 extending between the upper and lower walls and enclosing vertically extending bolt openings 50. adapted to receive bolts or studs for securing the cylinder head to an associated engine block. At locations intermediate each of the cylinder positions, vertically extending supporting walls 51 are. provided extending laterally intermediate but separated from the respective columns.
  • An intermediate deck is provided between the upper and lower decks and extending from the endwalls of the cylinder head to and interrnedliate the various exhaust; port walls, intersecting these walls at locations spaced above the lower wall andseparating thecoolant jacket into upper and lower sections.
  • the intermediate deck is actually made up of a plurality. of individual portions. These include end portions 54 intermediate the end walls and the adjacent exhaust ports, central cylinder position andbridge portions 56 extending be tween the exhaust ports of adjacent cylinders and intersecting the vertical support walls 51.
  • the lower portions of the exhaust passage walls 42 connect; thevariousportions 54, 55, 56 and thus also form portions of:
  • connecting walls 60, 61 are provided connecting the edges of intermediate deck portions 54 to the lower deck 22 to nearly enclose these portions of the lower coolant chamber.
  • Connecting walls 58, 59, 60 and 61 and the supporting walls 51 are interrupted by openings 63, 64 which extend through the lower deck 22 and provide communication between the enclosed portions of the lower coolant chamber and the remaining lower portions of the coolant chamber during the manufacturing process. Openings 63 also extend upwardly through the intermediate deck bridge portions 56 to connect the lower portions of the coolant chamber with its upper section.
  • openings 63, 64 permit cores for the upper and lower coolant chamber sections and the closed and open positions of the lower section to support one another at these points during the process of casting the main body of the cylinder head so that there is adequate support for these cores in the casting process.
  • openings 63 and 64 are machined to final size, as shown, and tubular inserts l6 and 18 are installed.
  • lnserts l6 and 18 are tubular members closed at one end and open at the other, inserts 16 having a single outlet opening 66 part way up the side wall thereof, while inserts 18 have a pair of angularly spaced outlet openings 68, 69 spaced part way up their side walls.
  • insert members are preferably made of corrosion-res istant material, such as brass or the like.
  • Openings 66 are positioned to connect with the enclosed lower deck portions at the ends of the cylinder head.
  • lnserts 18 are pressed into openings 63 with their open ends downwardly and their closed upper ends extending through and plugging the portions of the openings 63 in intermediate deck bridge portions 56.
  • inserts l6 and 18 close the openings in the connecting walls 58 61 and block connection of the enclosed lower coolant chamber portions directly with the remaining lower portions of the coolant chamber. outside of the connecting walls.
  • each cylinder position Centrally located within the four exhaust port openings of each cylinder position are vertically aligned openings 74, 75 and 76 through the upper, intermediate and lower decks, respectively. These openings receive the injector tubes 14, which are pressed into place and swaged at their lower ends, the upper ends being sealed in part by press fitting, together with the use of a resilient seal 78.
  • the injector tube is preferably made of formed brass or the like and provides a tubular enclosure within which a fuel injector may be installed in the cylinder head.
  • the groups of exhaust ports 32a d, 340 d etc. are aligned with individual cylinders of the engine, not shown, and the openings 63, 64 in the lower wall are connected with corresponding openings in the engine cylinder block through which liquid coolant is supplied under pressure to the cylinder head.
  • Coolant entering openings 64 is directed by inserts 16 into the enclosed lower coolant chamber portions at the ends of the cylinder head from which it is forced to flow between the adjacent valve port walls (e.g. 36a, 12) and past the injector tube 14 where it merges with coolant coming in the other direction and passes out from under the intermediate deck central portion between the longitudinally adjacent exhaust ports of the end cylinders (e.g.
  • Coolant entering openings 63 is directed by inserts 18 into the two sections of the enclosed lower coolant chamber portions between the cylinders.
  • the coolant supplied to each section is directed between the two adjacent exhaust port walls (e.g. 32c, d) and past the injector boss, where it merges with coolant coming from the opposite direction and is directed transversely out from under the intermediate deck central portion 55 between the longitudinally adjacent exhaust ports (e.g. 32a, d and 32 b,c).
  • the coolant is then free to move into other portions of the lower coolant chamber and upwardly into the upper section of the coolant chamber, where it cools the walls 42 of the exhaust passages and other walls of the cylinder head before passing out through an outlet opening, not shown.
  • the invention provides a cylinder head for a multicylinder engine wherein use is made of an intermediate deck and vertical connecting walls to direct coolant positively between the valve seats and around the injector tube so that adequate cooling of these critical areas is assured.
  • the arrangement is such that tubular inserts serve the dual purpose of directing water flow into the desired portions of the coolant chamber while closing off openings connecting otherwise closed chamber portions with transversely and vertically adjacent portions of the chamber to provide for suitable contact between casting cores in the manufacturing process.
  • said head comprising a cast member having spaced upper and .lower decks connected by enclosing walls to define a coolant chamber,
  • said lower deck having a plurality of coolant openings therethrough and communicating with said closed portion of said coolant chamber, said coolant openings being vertically aligned with connecting openings in said connecting walls and said intermediate deck, permitting interconnection during manufacture of said closed lower chamber portion, with said upper chamber section and the adjacent open portions of said lower chamber section, and
  • a tubular insert in each of said connecting openings said inserts being closed atone end and open at the other, said closed end extending into and blocking said connecting openings in said intermediate deck, and the sides of said inserts blocking direct communication between said closed portion of said lower coolant chamber section and the remainder of said lower section, and openings in the walls of said inserts communicating said closed chamber portion with the open ends of said inserts to permit coolant flow through said inserts from the exterior of said head lower deck to said closed chamber portion, said closed coolant chamber portion communicating with the remainder of said coolant chamber through openings intermediate the laterally adjacent exhaust port walls of said two adjacent pairs of ports.
  • said means including a lower deck having portions exposed to combustion in the engine cylinders, plurality of exhaust port-defining walls extending upwardly into said coolant chamber from said lower deck and each terminating at a single exhaust opening through said lower deck, said exhaust ports being arranged in longitudinally spaced groups, the ports of each group being adapted for connection with an individual cylinder of an associated engine, said groups each including four ports laterally and longitudinally spaced in rectangular fashion, wall means enclosing a lower portion of said coolant chamber adjacent said lower deck and between two of said longitudinally spaced groups of exhaust ports, said enclosed lower portion communicating with the remainder of said coolant chamber through spaces between the pairs of exhaust port walls adjacent said enclosed lower portion, said lower deck having a pair of coolant openings therethrough, communicating with said enclosed lower portion of the coolant chamber, and said enclosing wall means having openings therethrough aligned with said pair of lower deck coolant openings and adapted to connect said enclosed lower portion laterally and vertically with other portions of said coolant chamber to provide inter
  • tubular insert members each enclosed at one end and open at the other, with at least one opening in the tubular wall thereof spaced between the ends, said insert members each being mounted in one of said lower deck coolant openings and having their closed ends extending into the respective aligned openings in said enclosing wall means, said insert members being oriented (at) with their tubular wall openings connecting with the interior of said enclosed lower coolant chamber portion to communicate said enclosed portion with the exterior of said head through said insert members and bustion engine, said head comprising i a cast member having spaced upper and lower decks connected by enclosing side and end walls to define a coolant chamber,
  • a component receiving tube secured in openings in the upper and lower decks at each cylinder position and spaced intermediate the exhaust port-defining walls for the respective position
  • first, second and third intermediate deck portions spaced between said upper and lower decks, said first portions extending longitudinally between said end walls and the adjacent exhaust passage walls, .said second portions extending between the adjacent exhaust passages of the various cylinder positions and intersecting said lateral supporting walls and said third portions extending between the four exhaust port walls of each cylinder position and engaging their respective component receiving tubes, said intermediate deck portions together with said exhaust passage walls defining a partial intermediate deck separating said coolant chamber longitudinally of said exhaust ports into upper and lower sections,
  • said lower deck having a plurality of coolant openings therethrough, including first coolant openings communicating with said first closed lower chamber portions and second coolant openings commu nicating with said second closed lower chamber portions, said coolant openings being vertically aligned with connecting openings in said connecting walls, and said second coolant openings being further aligned with connecting openings in said second intermediate deck portions, thereby permitting interconnection during manufacture of said closed lower chamber portions with said upper chamber section and the remaining adjacent lower portions of said lower chamber section, and
  • tubular insert in each of said connecting openings, said inserts being closed at one end and open at the other, said inserts closed ends extending into and blocking said connecting openings in said second to said closed chamber portions, said closed chamber portions communicating with the remainder of said coolant chamber through openings intermediate the respective laterally adjacent pairs of exhaust port walls.

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  • 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)
US00353587A 1973-04-23 1973-04-23 Improved cylinder head cooling Expired - Lifetime US3818878A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00353587A US3818878A (en) 1973-04-23 1973-04-23 Improved cylinder head cooling
GB1587674A GB1422764A (de) 1973-04-23 1974-04-10
JP4518674A JPS534168B2 (de) 1973-04-23 1974-04-23
DE2420051A DE2420051C3 (de) 1973-04-23 1974-04-23 FifissigkeitsgekUhlter Zylinderkopf für mehrzylindrige Brennkraftmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00353587A US3818878A (en) 1973-04-23 1973-04-23 Improved cylinder head cooling

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US3818878A true US3818878A (en) 1974-06-25

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US (1) US3818878A (de)
JP (1) JPS534168B2 (de)
DE (1) DE2420051C3 (de)
GB (1) GB1422764A (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901200A (en) * 1974-06-05 1975-08-26 Gen Motors Corp Engine with improved cooling system
US4083333A (en) * 1974-12-21 1978-04-11 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Cylinder head construction for an internal combustion engine
US4092956A (en) * 1975-09-04 1978-06-06 Hans List Water cooled internal combustion engine, particularly a diesel engine
US4121550A (en) * 1974-08-07 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Liquid-cooled cylinder head
FR2457387A1 (fr) * 1979-05-23 1980-12-19 Fiat Veicoli Ind Culasse de moteur diesel a chambres de precombustion
EP0367055A2 (de) * 1988-10-29 1990-05-09 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Wassergekühlter Reihenzylinderkopf einer Brennkraftmaschine
EP0430258A1 (de) * 1989-11-29 1991-06-05 Yamaha Hatsudoki Kabushiki Kaisha Kühlsystem für eine Brennkraftmaschine mit mehreren Ventilen
EP0527684A1 (de) * 1991-08-13 1993-02-17 Regie Nationale Des Usines Renault S.A. Zylinderkopf für Brennkraftmaschine
FR2688267A1 (fr) * 1992-03-09 1993-09-10 Peugeot Culasse d'un moteur a combustion interne refroidi par un liquide de refroidissement.
EP0838585A1 (de) * 1996-10-25 1998-04-29 Daimler-Benz Aktiengesellschaft Zylinderkopf einer Mehrzylinder-Brennkraftmaschine
US6116198A (en) * 1997-07-21 2000-09-12 Cummins Engine Company, Inc. Replaceable cylinder liner with improved cooling
US20040173168A1 (en) * 2002-07-23 2004-09-09 Bertram Obermayer Cylinder head for a multicylinder liquid-cooled internal combustion engine
DE102004040227A1 (de) * 2004-08-18 2006-02-23 Bayerische Motoren Werke Ag Zylinderkopf für eine wassergekühlte Mehrzylinder-Brennkraftmaschine
EP1884647A2 (de) * 2006-08-04 2008-02-06 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
FR2907504A1 (fr) * 2006-10-19 2008-04-25 Renault Sas Dispositif de refroidissement pour moteur a combustion interne et procede de realisation d'une chambre d'eau culasse
US20160215677A1 (en) * 2015-01-26 2016-07-28 Toyota Jidosha Kabushiki Kaisha Cylinder head and method of manufacturing cylinder head
US20160258381A1 (en) * 2015-03-04 2016-09-08 GM Global Technology Operations LLC Water jacket for an internal combustion engine
CN109642517A (zh) * 2016-08-24 2019-04-16 Fpt工业股份公司 包括液体冷却回路的内燃发动机

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US4075292A (en) * 1976-06-01 1978-02-21 Bayer Aktiengesellschaft Production of O,O-dialkyl-phosphorochloridothionates
JPS54129206A (en) * 1978-03-28 1979-10-06 Honda Motor Co Ltd Internal combustion engine
JPS566047A (en) * 1979-06-25 1981-01-22 Yamaha Motor Co Ltd Structure of cooling water passage in cylinder head
JPS59169061U (ja) * 1983-04-28 1984-11-12 株式会社村田製作所 高周波回路用基板
DE3513126C2 (de) * 1985-04-12 1987-02-12 Daimler-Benz Ag, 7000 Stuttgart Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
DE3546436C2 (de) * 1985-04-12 1987-01-29 Daimler-Benz Ag, 7000 Stuttgart Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
DE3516453A1 (de) * 1985-05-08 1986-11-13 Audi AG, 8070 Ingolstadt Fluessigkeitsgekuehlter zylinderkopf
AT402325B (de) * 1990-02-13 1997-04-25 Avl Verbrennungskraft Messtech Zylinderkopf einer flüssigkeitsgekühlten brennkraftmaschine mit in reihe angeordneten zylindern
DE4103669C1 (en) * 1991-02-07 1992-02-13 Bayerische Motoren Werke Ag, 8000 Muenchen, De Liq. cooled cylinder head for IC engine - has four charge-changing channels round spraking plug well
JPH04122388U (ja) * 1991-04-18 1992-11-02 セイコーエプソン株式会社 電子機器の回路構造
DE19548342A1 (de) * 1995-12-22 1997-07-03 Daimler Benz Ag Zylinderkopf für eine gleichstromgespülte Zweitakt-Brennkraftmaschine
DE102004001908A1 (de) * 2004-01-14 2005-08-04 Daimlerchrysler Ag Zylinderkopf für eine flüssigkeitsgekühlte Brennkraftmaschine
JP2008180183A (ja) * 2007-01-25 2008-08-07 Daihatsu Motor Co Ltd シリンダヘッド

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US3130461A (en) * 1961-08-01 1964-04-28 Gen Motors Corp Cooling passages in cast aluminum cylinder heads and blocks
US3176666A (en) * 1964-02-03 1965-04-06 Herbert A Whitehead Internal combustion engine cylinder heads
US3315652A (en) * 1965-01-05 1967-04-25 Motoren Werke Mannheim Ag Cylinder for a water-cooled internal combustion engine
US3420215A (en) * 1965-12-10 1969-01-07 Maybach Mercedes Benz Motorenb Liquid-cooled cylinder head for internal combustion engines
US3547086A (en) * 1967-11-29 1970-12-15 List Hans Cylinder head for internal combustion engines
US3769948A (en) * 1971-08-03 1973-11-06 List H Cylinder head for a water-cooled internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130461A (en) * 1961-08-01 1964-04-28 Gen Motors Corp Cooling passages in cast aluminum cylinder heads and blocks
US3176666A (en) * 1964-02-03 1965-04-06 Herbert A Whitehead Internal combustion engine cylinder heads
US3315652A (en) * 1965-01-05 1967-04-25 Motoren Werke Mannheim Ag Cylinder for a water-cooled internal combustion engine
US3420215A (en) * 1965-12-10 1969-01-07 Maybach Mercedes Benz Motorenb Liquid-cooled cylinder head for internal combustion engines
US3547086A (en) * 1967-11-29 1970-12-15 List Hans Cylinder head for internal combustion engines
US3769948A (en) * 1971-08-03 1973-11-06 List H Cylinder head for a water-cooled internal combustion engine

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901200A (en) * 1974-06-05 1975-08-26 Gen Motors Corp Engine with improved cooling system
US4121550A (en) * 1974-08-07 1978-10-24 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Liquid-cooled cylinder head
US4083333A (en) * 1974-12-21 1978-04-11 Motoren-Und Turbinen-Union Friedrichshafen Gmbh Cylinder head construction for an internal combustion engine
US4092956A (en) * 1975-09-04 1978-06-06 Hans List Water cooled internal combustion engine, particularly a diesel engine
FR2457387A1 (fr) * 1979-05-23 1980-12-19 Fiat Veicoli Ind Culasse de moteur diesel a chambres de precombustion
EP0367055A2 (de) * 1988-10-29 1990-05-09 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Wassergekühlter Reihenzylinderkopf einer Brennkraftmaschine
EP0367055A3 (de) * 1988-10-29 1990-07-04 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Wassergekühlter Reihenzylinderkopf einer Brennkraftmaschine
EP0430258A1 (de) * 1989-11-29 1991-06-05 Yamaha Hatsudoki Kabushiki Kaisha Kühlsystem für eine Brennkraftmaschine mit mehreren Ventilen
EP0527684A1 (de) * 1991-08-13 1993-02-17 Regie Nationale Des Usines Renault S.A. Zylinderkopf für Brennkraftmaschine
FR2680387A1 (fr) * 1991-08-13 1993-02-19 Renault Culasse pour moteur a combustion interne.
FR2688267A1 (fr) * 1992-03-09 1993-09-10 Peugeot Culasse d'un moteur a combustion interne refroidi par un liquide de refroidissement.
US5868106A (en) * 1996-10-25 1999-02-09 Daimler-Benz Ag Cylinderhead of a multicylinder internal combustion engine
EP0838585A1 (de) * 1996-10-25 1998-04-29 Daimler-Benz Aktiengesellschaft Zylinderkopf einer Mehrzylinder-Brennkraftmaschine
US6116198A (en) * 1997-07-21 2000-09-12 Cummins Engine Company, Inc. Replaceable cylinder liner with improved cooling
US6328001B1 (en) 1997-07-21 2001-12-11 Cummins Engine Company, Inc. Replaceable cylinder liner with improved cooling
DE10331918B4 (de) * 2002-07-23 2014-08-07 Avl List Gmbh Zylinderkopf für eine flüssigkeitsgekühlte Mehrzylinder-Brennkraftmaschine
US6899063B2 (en) 2002-07-23 2005-05-31 Avl List Gmbh Cylinder head for a multicylinder liquid-cooled internal combustion engine
US20040173168A1 (en) * 2002-07-23 2004-09-09 Bertram Obermayer Cylinder head for a multicylinder liquid-cooled internal combustion engine
DE102004040227A1 (de) * 2004-08-18 2006-02-23 Bayerische Motoren Werke Ag Zylinderkopf für eine wassergekühlte Mehrzylinder-Brennkraftmaschine
EP1884647A2 (de) * 2006-08-04 2008-02-06 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
EP1884647A3 (de) * 2006-08-04 2008-05-07 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
FR2907504A1 (fr) * 2006-10-19 2008-04-25 Renault Sas Dispositif de refroidissement pour moteur a combustion interne et procede de realisation d'une chambre d'eau culasse
US20160215677A1 (en) * 2015-01-26 2016-07-28 Toyota Jidosha Kabushiki Kaisha Cylinder head and method of manufacturing cylinder head
US20160258381A1 (en) * 2015-03-04 2016-09-08 GM Global Technology Operations LLC Water jacket for an internal combustion engine
US10184420B2 (en) * 2015-03-04 2019-01-22 GM Global Technology Operations LLC Water jacket for an internal combustion engine
CN109642517A (zh) * 2016-08-24 2019-04-16 Fpt工业股份公司 包括液体冷却回路的内燃发动机
CN109642517B (zh) * 2016-08-24 2022-03-04 Fpt工业股份公司 包括液体冷却回路的内燃发动机

Also Published As

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DE2420051C3 (de) 1979-05-31
DE2420051A1 (de) 1975-01-23
GB1422764A (de) 1976-01-28
JPS534168B2 (de) 1978-02-15
JPS5012413A (de) 1975-02-08
DE2420051B2 (de) 1978-09-28

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