EP1733133B1 - Water-cooled cylinder head for a multi-cylinder internal combustion engine - Google Patents

Water-cooled cylinder head for a multi-cylinder internal combustion engine Download PDF

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Publication number
EP1733133B1
EP1733133B1 EP05726240.4A EP05726240A EP1733133B1 EP 1733133 B1 EP1733133 B1 EP 1733133B1 EP 05726240 A EP05726240 A EP 05726240A EP 1733133 B1 EP1733133 B1 EP 1733133B1
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EP
European Patent Office
Prior art keywords
cylinder head
water
combustion chamber
domes
cooled
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.)
Active
Application number
EP05726240.4A
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German (de)
French (fr)
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EP1733133A1 (en
Inventor
Michael Paul
Frank Ickinger
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP1733133A1 publication Critical patent/EP1733133A1/en
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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
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02F1/42—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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F02F2007/0063—Head bolts; Arrangements of cylinder head bolts

Definitions

  • the invention relates to a water-cooled cylinder head for a multi-cylinder internal combustion engine according to the features of the preamble of patent claim 1.
  • a generic water-cooled cylinder head is for example from the DE 199 55 431 A1 known.
  • an internal combustion engine is known which comprises a rib structure with a longitudinal rib below the water jacket in the cylinder head.
  • the object of the invention is therefore to overcome the aforementioned disadvantages.
  • the cylinder head housing designed in light metal construction can be stiffened and the high-temperature-loaded combustion chamber calipers can be effectively anchored in the cylinder head housing.
  • the rib structure has a longitudinal rib which penetrates the water jacket.
  • a particularly effective support or suspension of the Brennraumkalotten is ensured if the longitudinal rib is provided centrally between the valve inlet and outlet side and connected to the individual spark plug dome.
  • the rib structure has diagonal ribs which are connected to the dome for the cylinder head bolts, the spark plug dome and the valve stem guides.
  • a particularly effective rib structure results when, in addition to the longitudinal and diagonal ribs, transverse ribs are provided which connect the dome for the cylinder head bolts introduced on the inlet and outlet side in the cylinder head housing.
  • FIG. 1 illustrated cylinder head housing 10 has three cylinder head sections 12, 14, 16 which have in its central region Einschraubötechnisch 18, 20, 22 for spark plugs. Above the screw-in openings 18, 20, 22, two valve stem guides 24, 26 and 28, 30 and 32, 34 for the intake valves are shown per cylinder. Corresponding valve stem guides 36, 38 or 40, 42 and 44, 46 for the outlet valves are provided below the screw-in openings 18, 20, 22.
  • the screwing of the cylinder head housing 10 with the crankcase takes place with the aid of four cylinder head bolts per cylinder.
  • four through holes 48a to 48d or 49a to 49d or 50a to 50d are provided in the cylinder head housing 10 for each cylinder head section 12, 14, 16.
  • a chain case 52 is formed, which receives in an upper portion 54, not shown sprocket for driving the intake camshaft.
  • the drive cam for the exhaust camshaft is arranged in a lower portion 56 of the chain box 52.
  • corresponding combustion bowls 58, 60, 62 are formed in the cylinder head housing, which are bounded by the so-called.
  • Brennraumkalotten 64, 66, 68 Above the combustion chamber calottes 64, 66, 68 water jackets 70, 72, 74 are formed, which are traversed transversely in the operation of the internal combustion engine from the cooling water - from the Ventilauslass- to the valve inlet side.
  • a rib structure for stiffening the cylinder head housing 10 and for supporting the Brennraumkalotten 64, 66, 68 is provided, which is described in more detail below.
  • section line II - II is provided over the three cylinder head sections 12, 14, 16 extending longitudinal rib 76 which, as shown Fig. 2 and 3 seen, is connected to the dome 77 of the screw-in openings 18, 20, 22 for the spark plugs.
  • the longitudinal rib extends in the direction of the water jacket 70, 72, 74 and is over - the water jacket penetrating ribs or
  • rib structure furthermore has, for each cylinder head section 12, 14, 16, two transverse ribs 82, which are respectively cast onto the dome 81 for the cylinder head screw connections, relative to the cylinder head longitudinal axis (see line II-II).
  • the webs 78 penetrating the water jacket 70, 72, 74 are aligned in such a way that, as guide ribs, they guide a part of the cooling water into the region of the spark plug dome 77 in a targeted manner.

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)

Description

Die Erfindung betrifft einen wassergekühlten Zylinderkopf für eine mehrzylindrige Brennkraftmaschine gemäß den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a water-cooled cylinder head for a multi-cylinder internal combustion engine according to the features of the preamble of patent claim 1.

Ein gattungsgemäßer wassergekühlter Zylinderkopf ist beispielsweise aus der DE 199 55 431 A1 bekannt. Aus der JP 6202655 ist eine Brennkraftmaschine bekannt, die eine Rippenstruktur mit einer Längsrippe unter dem Wassermantel im Zylinderkopf umfasst.A generic water-cooled cylinder head is for example from the DE 199 55 431 A1 known. From the JP 6202655 For example, an internal combustion engine is known which comprises a rib structure with a longitudinal rib below the water jacket in the cylinder head.

Generell ist man bei Kraftfahrzeugen bestrebt, unter anderem aus Gründen der Kraftstoffeinsparung das Gesamtgewicht des Fahrzeuges zu reduzieren. Bei den Motoren werden dazu beispielsweise für das Kurbel- und Zylinderkopfgehäuse zunehmend Leichtmetalllegierungen eingesetzt. Insbesondere bei Hochleistungsmotoren treten jedoch aufgrund der hohen spezifischen Leistung im Zylinderkopf Temperaturspitzen insbesondere im Bereich zwischen den Auslassventilen bzw. zwischen Auslassventil und Zündkerze auf. Dies führt zu Temperaturspannungen im Material und kann in Verbindung mit äußeren Lasten zu bleibenden Verformungen im Sitzringbereich und damit zu Ventilundichtigkeiten führen.In general, one endeavors in motor vehicles, among other things, for reasons of fuel economy, to reduce the overall weight of the vehicle. In the engines, for example, for the crank and cylinder head housing increasingly light metal alloys are used. However, especially in the case of high-performance engines, temperature peaks occur in particular in the region between the exhaust valves or between the exhaust valve and the spark plug due to the high specific power in the cylinder head. This leads to temperature stresses in the material and, in conjunction with external loads, can lead to permanent deformations in the seat ring area and thus valve leaks.

Aufgabe der Erfindung ist es daher, die zuvor genannten Nachteile zu überwinden.The object of the invention is therefore to overcome the aforementioned disadvantages.

Die Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst.The object is solved by the features specified in claim 1.

Dadurch, dass im Zylinderkopfgehäuse eine Rippenstruktur integriert ist, kann das in Leichtmetallbauweise ausgeführte Zylinderkopfgehäuse versteift und die hoch temperaturbelasteten Brennraumkalotten wirksam im Zylinderkopfgehäuse verankert werden. Durch diese Strukturmaßnahmen ist sichergestellt, dass trotz hoher Temperaturbelastung der Zylinderkopf insbesondere im Bereich der Brennraumkalotten formstabil bleibt.Due to the fact that a rib structure is integrated in the cylinder head housing, the cylinder head housing designed in light metal construction can be stiffened and the high-temperature-loaded combustion chamber calipers can be effectively anchored in the cylinder head housing. These structural measures ensure that, in spite of the high temperature load, the cylinder head remains dimensionally stable, especially in the area of the combustion chamber calottes.

Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen aufgeführt.Further, the invention ausgestaltende features are listed in the subclaims.

Zur optimalen Abstützung bzw. Strukturversteifung der Brennraumkalotten weist die Rippenstruktur eine den Wassermantel durchdringende Längsrippe auf.For optimum support or structural stiffening of the combustion chamber calotte, the rib structure has a longitudinal rib which penetrates the water jacket.

Damit trotz der den Wassermantel durchdringenden Längsrippe ein ungehinderter Kühlmittelfluss von der Ventilauslass- zur Ventileinlassseite erfolgen kann, sind in der Längsrippe entsprechende Durchlassöffnungen ausgebildet.In order that, despite the longitudinal rib penetrating the water jacket, an unhindered flow of coolant can take place from the valve outlet to the valve inlet side, corresponding passage openings are formed in the longitudinal rib.

Eine besonders wirksame Abstützung bzw. Aufhängung der Brennraumkalotten ist gewährleistet, wenn die Längsrippe zentral zwischen Ventilein- und auslassseite vorgesehen und an die einzelnen Zündkerzendome angebunden ist.A particularly effective support or suspension of the Brennraumkalotten is ensured if the longitudinal rib is provided centrally between the valve inlet and outlet side and connected to the individual spark plug dome.

Zur weiteren Versteifung des Zylinderkopfgehäuses weist die Rippenstruktur Diagonalrippen auf, die an die Dome für die Zylinderkopfschrauben, die Zündkerzendome sowie die Ventilschaftführungen angebunden sind.To further stiffen the cylinder head housing, the rib structure has diagonal ribs which are connected to the dome for the cylinder head bolts, the spark plug dome and the valve stem guides.

Eine besonders wirksame Rippenstruktur ergibt sich, wenn zusätzlich zu den Längs- und Diagonalrippen Querrippen vorgesehen sind, die die auf der Ein- und Auslassseite im Zylinderkopfgehäuse eingebrachten Dome für die Zylinderkopfschrauben miteinander verbinden.A particularly effective rib structure results when, in addition to the longitudinal and diagonal ribs, transverse ribs are provided which connect the dome for the cylinder head bolts introduced on the inlet and outlet side in the cylinder head housing.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, das nachstehend näher beschrieben ist.In the drawing, an embodiment of the invention is shown, which is described in more detail below.

Es zeigen:

Fig. 1
eine Draufsicht auf ein Zylinderkopfgehäuse,
Fig. 2
einen Längsschnitt durch das Zylinderkopfgehäuse gemäß der Linie II - II in Fig. 1 und
Fig. 3
eine Perspektivansicht des entlang der Linie II-II aufgeschnittenen Zylinderkopfes.
Show it:
Fig. 1
a top view of a cylinder head housing,
Fig. 2
a longitudinal section through the cylinder head housing according to the line II - II in Fig. 1 and
Fig. 3
a perspective view of the cut along the line II-II cylinder head.

Das in Fig. 1 dargestellte Zylinderkopfgehäuse 10 weist drei Zylinderkopfabschnitte 12, 14, 16 auf, die in ihrem zentralen Bereich Einschrauböffnungen 18, 20, 22 für Zündkerzen aufweisen. Oberhalb der Einschrauböffnungen 18, 20, 22 sind jeweils pro Zylinder zwei Ventilschaftführungen 24, 26 bzw. 28, 30 bzw. 32, 34 für die Einlassventile dargestellt. Entsprechende Ventilschaftführungen 36, 38 bzw. 40, 42 bzw. 44, 46 für die Auslassventile sind unterhalb der Einschrauböffnungen 18, 20, 22 vorgesehen.This in Fig. 1 illustrated cylinder head housing 10 has three cylinder head sections 12, 14, 16 which have in its central region Einschrauböffnungen 18, 20, 22 for spark plugs. Above the screw-in openings 18, 20, 22, two valve stem guides 24, 26 and 28, 30 and 32, 34 for the intake valves are shown per cylinder. Corresponding valve stem guides 36, 38 or 40, 42 and 44, 46 for the outlet valves are provided below the screw-in openings 18, 20, 22.

Die Verschraubung des Zylinderkopfgehäuses 10 mit dem Kurbelgehäuse erfolgt mit Hilfe von vier Zylinderkopfschrauben pro Zylinder. Dafür sind im Zylinderkopfgehäuse 10 für jeden Zylinderkopfabschnitt 12, 14, 16 vier Durchgangsbohrungen 48a bis 48d bzw. 49a bis 49d bzw. 50a bis 50d vorgesehen. Stirnseitig am Zylinderkopfgehäuse 10 ist ein Kettenkasten 52 ausgebildet, der in einem oberen Abschnitt 54 ein nicht dargestelltes Kettenritzel für den Antrieb der Einlassnockenwelle aufnimmt. In einem unteren Abschnitt 56 des Kettenkastens 52 ist das Antriebsritzel für die Auslassnockenwelle angeordnet.The screwing of the cylinder head housing 10 with the crankcase takes place with the aid of four cylinder head bolts per cylinder. For this purpose, four through holes 48a to 48d or 49a to 49d or 50a to 50d are provided in the cylinder head housing 10 for each cylinder head section 12, 14, 16. On the front side of the cylinder head housing 10, a chain case 52 is formed, which receives in an upper portion 54, not shown sprocket for driving the intake camshaft. In a lower portion 56 of the chain box 52, the drive cam for the exhaust camshaft is arranged.

Wie aus Fig. 3 ersichtlich, sind in dem Zylinderkopfgehäuse 10 entsprechende Brennraummulden 58, 60, 62 ausgebildet, die durch die sog. Brennraumkalotten 64, 66, 68 begrenzt sind. Oberhalb der Brennraumkalotten 64, 66, 68 sind Wassermäntel 70, 72, 74 ausgebildet, die im Betrieb der Brennkraftmaschine vom Kühlwasser - von der Ventilauslass- zur Ventileinlassseite - quer durchströmt sind.How out Fig. 3 can be seen, 10 corresponding combustion bowls 58, 60, 62 are formed in the cylinder head housing, which are bounded by the so-called. Brennraumkalotten 64, 66, 68. Above the combustion chamber calottes 64, 66, 68 water jackets 70, 72, 74 are formed, which are traversed transversely in the operation of the internal combustion engine from the cooling water - from the Ventilauslass- to the valve inlet side.

Im Zylinderkopfgehäuse 10 ist eine Rippenstruktur zur Versteifung des Zylinderkopfgehäuses 10 und zur Abstützung der Brennraumkalotten 64, 66, 68 vorgesehen, die nachfolgend näher beschrieben ist.In the cylinder head housing 10, a rib structure for stiffening the cylinder head housing 10 and for supporting the Brennraumkalotten 64, 66, 68 is provided, which is described in more detail below.

Entlang der in Fig. 1 dargestellten Schnittlinie II - II ist eine sich über die drei Zylinderkopfabschnitte 12, 14, 16 erstreckende Längsrippe 76 vorgesehen, die, wie aus Fig. 2 und 3 ersichtlich, an die Dome 77 der Einschrauböffnungen 18, 20, 22 für die Zündkerzen angebunden ist. Die Längsrippe erstreckt sich in Richtung des Wassermantels 70, 72, 74 und ist über - den Wassermantel durchdringende Rippen bzw.Along the in Fig. 1 shown section line II - II is provided over the three cylinder head sections 12, 14, 16 extending longitudinal rib 76 which, as shown Fig. 2 and 3 seen, is connected to the dome 77 of the screw-in openings 18, 20, 22 for the spark plugs. The longitudinal rib extends in the direction of the water jacket 70, 72, 74 and is over - the water jacket penetrating ribs or

Stege 78 - an die Brennraumkalotten 64, 66, 68 angegossen. Damit wird einerseits eine Versteifung des Zylinderkopfgehäuses 10 und andererseits eine Abstützung bzw. sichere Aufhängung der Brennraumkalotten 64, 66, 68 erreicht.Webs 78 - cast on the Brennraumkalotten 64, 66, 68. This on the one hand, a stiffening of the cylinder head housing 10 and on the other hand a support or secure suspension of the Brennraumkalotten 64, 66, 68 is achieved.

Wie aus Fig. 1 weiterhin ersichtlich, sind neben der Längsrippe 76 zur weiteren Versteifung des Zylinderkopfgehäuses 10 Diagonalrippen 80 vorgesehen, die an die Dome 81 für die Zylinderkopfschrauben, die Ventilschaftführungen 83 sowie die Zündkerzendome 77 angebunden bzw. angegossen sind. Die Rippenstruktur weist weiterhin für jeden Zylinderkopfabschnitt 12, 14, 16 zwei - bezogen auf die Zylinderkopflängsachse (siehe Linie II-II) - Querrippen 82 auf, die jeweils an die Dome 81 für die Zylinderkopfverschraubungen angegossen sind. Darüber hinaus sind die den Wassermantel 70, 72, 74 durchdringenden Stege 78 so ausgerichtet, dass sie als Leitrippen ein Teil des Kühlwassers gezielt in den Bereich des Zündkerzendomes 77 führen.How out Fig. 1 Furthermore, in addition to the longitudinal rib 76 for further stiffening of the cylinder head housing 10 diagonal ribs 80 are provided, which are connected to the dome 81 for the cylinder head bolts, the valve stem guides 83 and the spark plug domes 77 or molded. The rib structure furthermore has, for each cylinder head section 12, 14, 16, two transverse ribs 82, which are respectively cast onto the dome 81 for the cylinder head screw connections, relative to the cylinder head longitudinal axis (see line II-II). In addition, the webs 78 penetrating the water jacket 70, 72, 74 are aligned in such a way that, as guide ribs, they guide a part of the cooling water into the region of the spark plug dome 77 in a targeted manner.

Claims (5)

  1. Water-cooled cylinder head for a multi-cylinder internal combustion engine, having a cylinder head housing (10) which has gas exchange ducts, having passage bores (48, 49, 50) for receiving cylinder head bolts, and having a valve shank guides (24 to 46) for inlet and outlet valves, and having calotte-shaped combustion chamber structures (64, 66, 68) which are delimited, on the side averted from the combustion chamber, by a water jacket (70, 72, 74), and having in each case one ignition plug dome (77), the opening (18, 20, 22) of which leads to the combustion chamber of the respective cylinder, wherein, for stiffening of the cylinder head housing (10) and/or for support of the calotte-shaped combustion chamber structures (64, 66, 68), a rib structure (76, 80, 82) is integrated in the cylinder head housing,
    characterized in that
    the rib structure has a longitudinal rib (76), on which the calotte-shaped combustion chamber structures (64, 66, 68) of the individual cylinder head sections (12, 14, 16) are supported, wherein the longitudinal rib (76) is attached to the domes (77) of screw-in openings (18, 20, 22) for ignition plugs positioned in a central region of the combustion chamber (58, 60, 62), and wherein the longitudinal rib (76) is integrally cast, by way of webs (78) which extend through the water jacket (70, 72, 74), onto the calotte-shaped combustion chamber structures (64, 66, 68), which webs are oriented such that, as guide ribs, they targetedly guide some of the cooling water into the region of the ignition plug dome (77).
  2. Water-cooled cylinder head according to Claim 1, characterized in that the longitudinal rib (76) has, in the region of the water jacket (70, 72, 74), ribs or webs (78) for forming passage openings for the cooling water.
  3. Water-cooled cylinder head according to Claim 1 or 2, characterized in that the longitudinal rib (76) is provided between valve inlet side and valve outlet side and is integrally cast onto the individual ignition plug domes (77).
  4. Water-cooled cylinder head according to one of the preceding claims, characterized in that the rib structure has diagonal ribs (80) which are integrally cast onto the domes (81) for the cylinder head bolts, the domes (83) for the valve shank guides (24 to 46) and the ignition plug domes (77).
  5. Water-cooled cylinder head according to one of Claims 1 to 4, characterized in that the rib structure has transverse ribs (82) which are integrally cast onto the domes (81) for the cylinder head bolts.
EP05726240.4A 2004-03-27 2005-03-15 Water-cooled cylinder head for a multi-cylinder internal combustion engine Active EP1733133B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015135A DE102004015135A1 (en) 2004-03-27 2004-03-27 Water-cooled cylinder head for a multi-cylinder internal combustion engine
PCT/EP2005/002724 WO2005093243A1 (en) 2004-03-27 2005-03-15 Water-cooled cylinder head for a multi-cylinder internal combustion engine

Publications (2)

Publication Number Publication Date
EP1733133A1 EP1733133A1 (en) 2006-12-20
EP1733133B1 true EP1733133B1 (en) 2016-06-22

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ID=34963960

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EP05726240.4A Active EP1733133B1 (en) 2004-03-27 2005-03-15 Water-cooled cylinder head for a multi-cylinder internal combustion engine

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US (1) US7128028B2 (en)
EP (1) EP1733133B1 (en)
JP (1) JP2007530852A (en)
DE (1) DE102004015135A1 (en)
WO (1) WO2005093243A1 (en)

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WO2008045972A2 (en) * 2006-10-10 2008-04-17 Asm America, Inc. Precursor delivery system
US8601995B2 (en) 2011-08-03 2013-12-10 Cummins Intellectual Property, Inc. Cylinder liner seal arrangement and method of providing the same
US8950374B2 (en) * 2012-06-25 2015-02-10 Cummins Intellectual Property, Inc. Cylinder head for internal combustion engine
CN105257423B (en) * 2015-11-13 2017-08-25 广西玉柴机器股份有限公司 Cylinder head
RU2704708C2 (en) * 2017-08-24 2019-10-30 Акционерное общество "АвтоВАЗ" Internal combustion engine cylinder block head
US11371465B2 (en) * 2018-10-29 2022-06-28 Komatsu Ltd. Cylinder head and engine
AT522060B1 (en) * 2019-01-23 2021-04-15 Avl List Gmbh LIQUID-COOLED CYLINDER HEAD
CN110541771A (en) * 2019-09-18 2019-12-06 广西玉柴机器股份有限公司 Cylinder cover

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US2339972A (en) * 1942-04-15 1944-01-25 Aluminum Co Of America Cylinder head
JPH0762464B2 (en) 1985-07-17 1995-07-05 本田技研工業株式会社 Cooling device for cylinder head of multi-cylinder internal combustion engine
JPH07103828B2 (en) * 1987-11-17 1995-11-08 本田技研工業株式会社 Cylinder head for water-cooled multi-cylinder engine
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JPH0381548A (en) * 1989-08-23 1991-04-05 Yamaha Motor Co Ltd Liquid-cooling jacket structure of cylinder head
JPH11336608A (en) * 1998-05-22 1999-12-07 Honda Motor Co Ltd Cylinder head cooling structure
JP4199355B2 (en) * 1999-02-09 2008-12-17 トヨタ自動車株式会社 Cylinder head of internal combustion engine
JP4113997B2 (en) * 1999-10-18 2008-07-09 株式会社豊田自動織機 Industrial vehicle inching control device
DE19955431B4 (en) 1999-11-18 2013-04-04 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Cylinder head for an internal combustion engine
JP3700836B2 (en) * 2001-05-17 2005-09-28 本田技研工業株式会社 Cylinder head cooling structure for internal combustion engine

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Also Published As

Publication number Publication date
WO2005093243A1 (en) 2005-10-06
US7128028B2 (en) 2006-10-31
EP1733133A1 (en) 2006-12-20
DE102004015135A1 (en) 2005-10-13
US20060016404A1 (en) 2006-01-26
JP2007530852A (en) 2007-11-01

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