• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a cylinder head (1) with liquid cooling, with an inlet channel (2) opening into a combustion chamber and an outlet channel (3) per cylinder, with one opening into the combustion chamber and adjacent to the inlet channel (2) and the outlet channel (3) Fuel injection device (7), as well as with at least one in the cylinder head (1) arranged cooling space (20), wherein in a region of the fire deck (9) a substantially parallel to the fire deck (9) extending, in particular drilled or pre-cast cooling distribution channel (11) which opens into a ring space (8) surrounding the fuel injection device (7). In order to improve the cooling of thermally critical areas, the annular space (8) has at least one essentially radial first cooling bore which is formed on a valve web area (14) which is formed between inlet channel (2) and outlet channel (3) and adjoins the fire deck (9). is directed.
    公开号:AT511601A4
    申请号:T1104/2011
    申请日:2011-07-28
    公开日:2013-01-15
    发明作者:Manuel Berger；Christian Auer
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    1 56216 I · · · 14 * * * * * * * »i ί *« l * · * »» * * ·· »· · *« ι «*« · · · · * *
    The invention relates to a cylinder head with liquid cooling, with an opening into a combustion chamber inlet port and an outlet port per cylinder, with a merging into the combustion chamber and adjacent to the intake port and the exhaust port fuel injector, and at least one cylinder head arranged in the cooling chamber, wherein in one area of the fire deck is arranged a substantially parallel to the fire deck extending, in particular drilled or pre-cast, cooling distribution channel, which opens into a surrounding the fuel injector annular space.
    From AT 389 565 B, a cylinder head of a water-cooled internal combustion engine with an inlet channel and an outlet channel, as well as an opening into the combustion chamber fuel device is known, wherein in the region of the valve land between the two valves, a cooling distribution channel is arranged, which opens into an annular space surrounding the fuel injection device , The fuel injection device is - viewed in the flow direction of the cooling liquid - arranged after the valve land area. Similar cooling arrangements, in which the cooling of the fuel injection device takes place only after the valve land area, are known from the publications DE 20 37 315 A1, DE 32 08 341 A1 or DE 24 17 925 A1.
    It has been found that in the known arrangement in some operating areas, the cooling of some thermally critical areas, for example in the region of the fuel injection device and / or the outlet channel, may be deficient.
    It is the object of the invention to avoid these disadvantages, and to improve the cooling of thermally critical areas.
    This is achieved according to the invention in that the annular space has at least one essentially radial first cooling bore which is directed into a valve web area formed between inlet channel and outlet channel and adjacent to the fire deck, preferably the valve web area arranged between the inlet channel and the outlet channel Coolant considered - is arranged downstream of the annulus. 2 * »* * * * · ·« «t» i v «« «
    The upstream of the annular space may have a flow cross-section which, for example at least twice, is greater than the flow cross section of the first cooling bore and any further cooling bores. This allows a high heat transfer into the coolant.
    The cooling distribution channel can have the same direction as the first cooling bore (valve throat cooling bore), wherein the axes of the first cooling bore and the cooling distribution channel can be aligned parallel, preferably coaxially. The first cooling bore is thus diametrically opposed to the cooling manifold passage - with respect to the annulus - arranged, whereby the first cooling hole can be drilled from the side of the cooling distribution channel. This is in particular easily possible if the annular space is formed by a cast slug of the cylinder head and a receiving sleeve for the fuel injection device inserted into a bore of the cast iron casing.
    For supplying the coolant, it may be provided that at least one supply bore extending from the cylinder head sealing plane opens into the cooling distributor channel. It is also possible to pre-pour the cooling distribution channel and the supply bore.
    In order to effectively cool further critical region of the outlet channel, it is particularly advantageous if at least one preferably substantially tangentially directed transverse to the outlet channel emanates from the annular space and / or from the cooling distribution channel laterally. From these further cooling holes, a second cooling hole in the region of the fire deck, preferably in the region of the junction of the cooling distribution channel in the annulus, can be arranged. Furthermore, a third cooling bore can emanate from an upper region of the annular space, wherein preferably the third cooling bore is spaced from the second cooling bore-viewed in the direction of the cylinder axis. This third cooling hole can also be used to vent the annulus.
    In this way, a very effective cooling around the
    Fuel injector, the exhaust passage and the area of the valve land between the two valves can be achieved.
    The invention will be explained in more detail below with reference to FIG. ..... 3 ............ ·· «· · · ·« · «« * «· t I« ·
    1 is a sectional view taken along the line II in FIG. 2, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a sectional view of the cylinder head Line ΙΠ-ΙΙΙ in Fig. 1 and Fig. 4, the cylinder head in an oblique view.
    The cylinder head 1 of an internal combustion engine cooled with coolant has an inlet channel 2 and an outlet channel 3 per cylinder, inlet channel 2 and outlet channel 3 opening via an inlet opening 4 and an outlet opening 5, respectively, into a combustion chamber (not further described). Inlet and outlet ports 4, 5 are controlled by not shown lifting valves. Adjacent to inlet channel 2 and outlet channel 3, a slug 6 (cast slug) for receiving a fuel injection device 7 opening into the combustion chamber is arranged.
    The cylinder head 1 has at least one cooling space 20, wherein in a region of the fire deck 9 of the cylinder head 1 a accumulation of material 10 is arranged with a substantially parallel to the fire deck 9 extending, drilled or cast cooling distribution channel 11, which in a fuel injector 7 surrounding annular space. 8 for cooling the fuel injection device 7 opens. The annular space 8 is formed by the slug 6 and an inserted into the slug 6 receiving sleeve 12 for the fuel injector 7.
    In the area of the fire deck 9, the annular space 8 has a radial first cooling bore 13, which is directed onto a valve web area 14 arranged between the inlet opening 4 and the outlet opening 5. The valve land area 14 is located - viewed in the flow direction of the coolant - downstream of the annular space 8. The first cooling hole 13, which serves to cool the valve land area 14, has the same orientation as the cooling distribution channel 11, the axes 11a, 13a of the cooling distribution channel 11 and the first cooling hole 13 are parallel, preferably coaxially aligned and are easier to produce.
    The cooling distribution channel 11 arranged upstream of the annular space 8 has a flow cross-section which is equal to or substantially larger, for example twice as large as the flow cross-section of the first cooling bore 13. 4 * ι «» < »* * *
    In the exemplary embodiment, a second cooling bore 15 and a third cooling bore 16 extend from the cooling distribution channel 11, the second cooling bore 15 being arranged in the region of the fire deck 9, for example in the region of the junction of the cooling distribution channel 13 into the annular space 8 can. The third cooling bore 16 starts from an upper region 8a of the annular space 8 facing away from the fire deck 9 and is spaced from the second cooling bore 15 - viewed in the direction of the cylinder axis 1a. The second cooling bore 15 and / or the third cooling bore 16 is approximately tangential to the first directed to the cooling chamber 20 outer surface 3a of the outlet channel 3.
    In the cooling distribution channel 13 opens a fire deck 9 penetrating supply bore 17, which emanates from the adjacent to a cylinder block not shown cylinder head density plane 18. About the supply hole 17 of the cooling distribution channel 13 is connected to a cooling jacket in the cylinder block or a water distribution bar in flow communication.
    The coolant flows according to the arrows S coming from the cooling jacket of the cylinder block through the supply hole 17 in the cooling distribution channel 13 and further into the annular space 13, where the receiving sleeve 12 flows around and thus the fuel injection device 7 is cooled. Thereafter, the coolant flows through the first cooling hole 13 to the valve land portion 14 between the inlet port 4 and the outlet port 5, which is thereby sufficiently cooled. At the same time, coolant also flows through the second bore 15 and the third bore 16 to the outer surface 3a of the outlet channel 3 and ensures optimum cooling of the outlet channels. By suitable dimensioning of the cross sections of the first, second and third cooling bores 13, 15, 16, the cooling effect achieved can be adapted to the respective requirements. After cooling the critical areas of the Kraftstoffeinritzeinrichtung 7, the valve land area 14 and the exhaust port 3, the coolant is collected in the cooling chamber 20 and discharged through not shown outlet openings of the cylinder head 1.
    权利要求:
    Claims (9)
    [1]
    5 «fr 4 * · * 1 I * • * * * - '* * ···· * * * •« · · · · * * · «« »* * tt I * * * CLAIMS 1. Cylinder head ( 1) with liquid cooling, with an opening into a combustion chamber inlet channel (2) and an outlet channel (3) per cylinder, with an opening into the combustion chamber and to the inlet channel (2) and the outlet channel (3) adjacent the fuel injector (7), and with at least one in the cylinder head (1) arranged cooling space (20), wherein in a region of the fire deck (9) a substantially parallel to the fire deck (9) extending, in particular drilled or precast, cooling distribution channel (11) is arranged, which in a The annular space (8) has at least one substantially radial, first cooling bore, which is formed on a between the inlet channel (2) and outlet channel (3) and the fire deck (9 ) gren Zenden valve land area (14) is directed.
    [2]
    2. Cylinder head (1) according to claim 1, characterized in that between the inlet channel (2) and the outlet channel (3) arranged valve land area (14) - viewed in the flow direction of the coolant downstream of the annular space (8) is arranged.
    [3]
    3. Cylinder head (1) according to claim 1 or 2, characterized in that the upstream of the annular space (8) arranged cooling distribution channel (11) has a flow cross section which, preferably at least twice, is greater than the flow cross section of the first Cooling hole (13).
    [4]
    4. Cylinder head (1) according to one of claims 1 to 3, characterized in that the cooling distribution channel (11) has the same direction as the first cooling bore (13) and the axes (13a, 11a) of the first cooling bore (13) and the Cooling distribution channels (11) are parallel, preferably coaxially aligned.
    [5]
    5. Cylinder head (1) according to one of claims 1 to 4, characterized in that in the cooling distribution channel (11) at least one of the 6 • I cylinder head density level (lSJ ^ aüSgjihindfe y & rscärcjungsbohrung (17) opens.
    [6]
    6. Cylinder head (1) according to one of claims 1 to 5, characterized in that from the annular space (8) and / or the cooling distribution channel (11) laterally at least one, preferably substantially tangentially directed to the outlet channel (3), further cooling bore ( 15, 16).
    [7]
    7. Cylinder head (1) according to claim 6, characterized in that at least one second cooling bore (15) in the region of the fire deck (9), preferably in the region of the junction of the cooling distribution channel (11) in the annular space (8) is arranged.
    [8]
    8. Cylinder head (1) according to claim 6 or 7, characterized in that at least one third cooling bore (16) starts from an upper region (8a) of the annular space (8), preferably the third cooling bore (16) of the second cooling bore (16). 15) - viewed in the direction of the cylinder axis (la) - is spaced.


    [9]
    9. Cylinder head (1) according to one of claims 1 to 8, characterized in that the annular space (8) of a slug (6) of the cylinder head (1) and in a bore of the Butzens (6) inserted receiving sleeve (12) for the fuel injection device (7) is formed. 2011-07-28 Fu / St
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    同族专利:
    公开号 | 公开日
    WO2013014113A1|2013-01-31|
    CN103827461B|2017-11-17|
    CN103827461A|2014-05-28|
    AT511601B1|2013-01-15|
    US9309830B2|2016-04-12|
    US20140305400A1|2014-10-16|
    EP2737188A1|2014-06-04|
    RU2596084C2|2016-08-27|
    EP2737188B1|2017-01-11|
    RU2014107706A|2015-09-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2037315A1|1970-07-28|1972-02-10|Klockner Humboldt Deutz AG, 5000 Köln|Liquid-cooled cylinder cylinder head unit|
    DE2417925A1|1973-04-12|1974-10-17|Perkins Engines Ltd|COMBUSTION ENGINE|
    DE2429355A1|1973-06-21|1975-01-16|Nat Research Dev Corp London|COMBUSTION ENGINE|
    AT389565B|1980-06-16|1989-12-27|List Hans|MULTI-CYLINDER WATER-COOLED INTERNAL COMBUSTION ENGINE|
    DE3208341A1|1982-03-09|1983-09-15|Klöckner-Humboldt-Deutz AG, 5000 Köln|CYLINDER HEAD FOR A WATER-COOLED INTERNAL COMBUSTION ENGINE|
    JPS62169221U|1986-04-18|1987-10-27|
    JPH01114917U|1988-01-28|1989-08-02|
    DE2236028A1|1971-08-03|1973-03-01|List Hans|CYLINDER HEAD FOR A WATER-COOLED COMBUSTION ENGINE|
    CS214379B1|1980-12-11|1982-04-09|Jindrich Jaluvka|Cylinder head of air-cooled engine|
    JP2002256966A|2001-03-06|2002-09-11|Toyota Motor Corp|Cooling structure of cylinder head|
    US20020124815A1|2001-03-06|2002-09-12|Toyota Jidosha Kabushiki Kaisha|Cooling structure of cylinder head and method for manufacturing cylinder head|
    JP3916056B2|2002-04-11|2007-05-16|いすゞ自動車株式会社|cylinder head|
    AT6342U1|2002-07-23|2003-08-25|Avl List Gmbh|CYLINDER HEAD FOR A LIQUID-COOLED MULTI-CYLINDER INTERNAL COMBUSTION ENGINE|
    JP2004116387A|2002-09-26|2004-04-15|Nissan Diesel Motor Co Ltd|Cooling structure for fuel injection nozzle|
    DE20216452U1|2002-10-25|2002-12-19|Fev Motorentech Gmbh|Cylinder head for a water-cooled piston internal combustion engine with internal reinforcement|
    AT6654U1|2002-10-31|2004-01-26|Avl List Gmbh|CYLINDER HEAD FOR A LIQUID-COOLED MULTI-CYLINDER INTERNAL COMBUSTION ENGINE|
    DE102005048566A1|2005-10-11|2007-04-12|Man Nutzfahrzeuge Ag|Auto-ignition internal combustion engine with combustion chambers for high ignition pressures|
    JP2008248894A|2008-07-15|2008-10-16|Yanmar Co Ltd|Cooling structure of cylinder head|US10605213B2|2015-08-21|2020-03-31|Cummins Inc.|Nozzle combustion shield and sealing member with improved heat transfer capabilities|
    US10385800B2|2017-06-02|2019-08-20|Caterpillar Inc.|Cylinder head assembly, cylinder head, and method|
    RU2704708C2|2017-08-24|2019-10-30|Акционерное общество "АвтоВАЗ"|Internal combustion engine cylinder block head|
    US11181032B2|2018-09-18|2021-11-23|Deere & Company|Cylinder head with improved valve bridge cooling|
    US11022020B2|2018-09-18|2021-06-01|Deere & Company|Cylinder head with improved valve bridge cooling|
    JP2020070726A|2018-10-29|2020-05-07|トヨタ自動車株式会社|cylinder head|
    法律状态:
    2020-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20190728 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1104/2011A|AT511601B1|2011-07-28|2011-07-28|CYLINDER HEAD WITH LIQUID COOLING|ATA1104/2011A| AT511601B1|2011-07-28|2011-07-28|CYLINDER HEAD WITH LIQUID COOLING|
    RU2014107706/06A| RU2596084C2|2011-07-28|2012-07-23|Cylinder head with liquid-type cooling|
    EP12740346.7A| EP2737188B1|2011-07-28|2012-07-23|Cylinder head with liquid-type cooling|
    US14/235,506| US9309830B2|2011-07-28|2012-07-23|Cylinder head with liquid-type cooling|
    PCT/EP2012/064366| WO2013014113A1|2011-07-28|2012-07-23|Cylinder head with liquid-type cooling|
    CN201280046399.6A| CN103827461B|2011-07-28|2012-07-23|Cylinder head with liquid-type cooling|
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