• 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 liquid-cooled internal combustion engine (1) having at least one cylinder (10), in which a lower partial cooling space (7) adjoining a fire deck (18) and having at least one main overflow opening (8) connected thereto upper part of the cooling chamber (6) is arranged. In order to improve the heat removal from thermally critical areas of the fire deck and to increase the strength of the cylinder head (3), it is provided that at least one inflow channel (11), preferably at least one, between the upper part cooling space (6) and the lower part cooling space (7) Inflow channel (11) per cylinder (10), which is connected to the lower part of the cooling chamber (7), preferably in a central region (13) of the cylinder (10), flow-connected.
    公开号:AT510857A4
    申请号:T1082011
    申请日:2011-01-27
    公开日:2012-07-15
    发明作者:Robert Dr Poeschl；Manfred Breitenberger
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    56137
    The invention relates to a liquid-cooled internal combustion engine having at least one cylinder, with a cylinder head, in which a lower partial cooling space adjoining a fire deck and an upper partial cooling space connected thereto via at least one main overflow opening are arranged.
    From AT 501 008 A2 an internal combustion engine with a cylinder head and a crankcase is known, wherein the cylinder head has a lower and an upper part of the cooling chamber, and wherein the two Teilkühiräume are separated by an intermediate deck. The coolant flows from a cooling space from the crankcase into the lower part of the cooling chamber and passes through an annular flow passage between the intermediate deck and a receiving member for a central component in the upper part of the cooling chamber, from which the coolant flows through a lateral outlet opening in a Kühlmittelsammeiraum.
    A similar cylinder head is known from AT 005 939 Ul. However, this cylinder head is designed for reverse coolant flow. The coolant flows from the upper part of the cooling chamber via an annular transfer opening between the intermediate deck and a receiving sleeve for a central component in the lower part of the cooling chamber and is guided via transfer openings in the cooling space of the crankcase. For cylinder heads, which are traversed by the lower part of the cooling chamber to the upper part of the cooling chamber, the cooling of thermally critical areas of the fire deck as a result of flow separation is not sufficient.
    Furthermore, from AT 503 182 A2 a liquid-cooled internal combustion engine with a cylinder housing for at least one cylinder and at least one cylinder head is known. In this case, the upper part of the cooling chamber via flow channels with the cooling space of the crankcase is fluidly connected. The coolant passes from the cooling chamber of the crankcase via the riser channels directly into the upper part of the cooling chamber and flows through an annular transfer opening between the intermediate deck and a receiving sleeve for a central component in the lower part of the refrigerator. The coolant leaves the lower part of the cooling chamber via side outlet openings.
    Known cylinder heads have the disadvantage that the intermediate deck in the region of the cylinder center to the fire deck is supported only slightly by the annular transfer opening between the upper and the lower part of the cooling chamber, whereby relatively large deflections may occur and thereby the durability of the cylinder head is impaired.
    The object of the invention is to avoid these disadvantages and to ensure optimum cooling of highly thermally stressed areas of the fire deck and to increase the rigidity of the cylinder head.
    According to the invention this is achieved in that between the upper part of the cooling chamber and the lower part of the cooling chamber at least one inflow, preferably at least one inflow channel per cylinder is arranged, which is connected to the lower part of the cooling chamber, preferably in a central region of the cylinder. This makes it possible for the coolant to flow in a central region from above into the lower part of the cooling chamber, whereby the critical thermal areas of the fire deck are directly flown. This significantly improves the heat dissipation in the area of the outlet valve seats and the valve bridges, so that thermal stresses can be reduced.
    Preferably, it is provided that the inflow channel in a central region, preferably in the region of the cylinder axis, via at least one preferably annular or ring-segment-shaped inlet opening is flow-connected to the lower Teiikühlraum. This allows a uniform coolant supply, which can be adapted by local variation of the radial extent of the annular inlet opening to the local thermal requirements of the subsequent valve bridge passages. The preferably closed annular space surrounds a component opening into the combustion chamber, for example a fuel injection valve.
    The coolant is led from a central region of the lower part of the cooling chamber via spoke-like channels in the area of the valve bridges to the outside and flows circumferentially around the outlet and inlet channels in the region of the valve seats. The coolant is led into the upper partial cooling space via the main overflow opening, and at least one second overflow opening allows a fine-tuning of the mass flows between the individual valve bridges. After flowing through the upper Teilkühiraumes the coolant leaves the cylinder head through an outlet opening in the region of a first cylinder head longitudinal side. The main transfer opening is ideally arranged in the region of the outlet valve bridges, preferably in the region of a second cylinder head longitudinal side facing away from the outlet opening.
    A simple ducting can be achieved if the inflow channel is hook-shaped and produced by casting technology. In this case, it can be provided that the inflow channel is formed at least in sections substantially normal to the cylinder axis and is preferably flow-connected to a feed channel formed essentially parallel to the cylinder axis, which starts from at least one transfer opening in the fire deck.
    The inflow channel is separated by a partition from the upper part of the refrigerator.
    In order to minimize deflections of the lower partition wall, it is advantageous if the annular space adjoins a receiving surface for the central component, wherein the receiving surface is connected to the fire deck and the lower partition. The receiving plaster thus acts as a central support element for the lower partition. As a result, the stiffness of the cylinder head in the central region and thus both the thermal and the structural robustness can be increased.
    In order to facilitate the filling of the cooling system with coolant, it is provided that at least one degassing step is arranged between the inflow channel and the upper part cooling space, the degassing step preferably being arranged in the region of the first cylinder head longitudinal side or in the region of the receiving boss.
    The invention will be explained in more detail below with reference to FIGS.
    1 shows an internal combustion engine according to the invention in a sectional oblique view, FIG. FIG. 2 shows a cylinder head of this internal combustion engine in a sectional oblique view, and FIG. 3 shows a cylinder head of the internal combustion engine in a further sectional oblique view.
    Functionally identical parts are provided in the embodiments with the same reference numerals.
    The internal combustion engine 1 has a cylinder housing 2 and a cylinder head 3. For cooling, a cooling system 4 is provided with a cooling liquid which flow through a cooling jacket 5 in the cylinder housing 2 and upper and lower part cooling chambers 6, 7 in the cylinder head 3. The upper part of the cooling chamber 6 and the lower part of the cooling chamber 7 are fluidly connected to each other via a Hauptüberströmöffnung 8 per cylinder 10. In the cylinder head 3, a hook-shaped inflow channel 11 is arranged, which starts from a transfer opening 12 in the region of a first longitudinal side 3a in the fire deck 18 and is guided radially between the lower part cooling space 7 and the upper part cooling space 6 into a central area 13 of the cylinder 10. In the central region 13, a receiving socket 14 is arranged for a Auffiahmehülse 25 for receiving a opening into the combustion chamber 15 component, wherein the Aufnahmeabutzen 14 between the upper part of the cooling chamber 6 separating from the lower part of the refrigerator 7 lower partition wall 17 and adjacent to the cylinder housing 2 fire deck 18 extends. The inflow channel 11 is separated by an upper partition wall 16 from the upper part of the cooling chamber 6, which may be formed by the lower partition wall 17. Between the inflow channel 11 and the lower part of the cooling chamber 7, an annular inlet opening 19 is provided, the annular space is designated 19a. Reference numeral 20 designates a degassing transition between the inflow channel 11 and the upper partial cooling space 6.
    The coolant flows according to the arrows S from the cooling chamber 5 of the cylinder housing 2 via the inflow channel 11 and the annular inlet opening 19 in the lower part of the cooling chamber 7 and is guided between the inlet and outlet channels in the region of the valve bridges via radial channels 21 to the outside. After flowing around the inlet and outlet channels, which are designated in Fig. 2 with IN and EX, the coolant enters the closed preferably outside the inlet and outlet channels annular space 22 and further preferably a Hauptüberströmöffnung 8 in the region of the second longitudinal side 3b of Cylinder head 1 in the upper part of the cooling chamber 6. After passing through the upper part of the cooling chamber 6, the coolant flows through a coolant outlet 23 on the first cylinder head longitudinal side 3a from the cylinder head 3 and flows into a coolant collector 24th
    Characterized in that the receiving surface 14 is fixedly connected to the lower partition wall 17 and the fire deck 18, are reduced by bending the lower partition wall 17 and the fire deck 18 and increases the strength of the cylinder head 3. The central inflow of the coolant through the inflow channel 11 from the side of the upper part of the cooling chamber 6 in the lower part of the cooling chamber 7 - under direct flow of thermally critical areas of the fire deck 18 - allows optimal cooling, especially the thermally highly stressed areas around the Auslaßventilbrücken.
    权利要求:
    Claims (11)
    [1]
    1. A liquid-cooled internal combustion engine (1) having at least one cylinder (10), in which a lower partial cooling space (7) adjoining a fire deck (18) and a flow-connected thereto via at least one main overflow opening (8) Upper partial cooling space (6) is arranged, characterized in that between the upper part of the cooling chamber (6) and the lower part of the cooling chamber (7) at least one inflow channel (11), preferably at least one inflow channel (11) per cylinder (10) is arranged, which with the lower part of the cooling chamber (7), preferably in a central region (13) of the cylinder (10), flow connected.
    [2]
    2. Internal combustion engine (1) according to claim 1, characterized in that the inflow channel (11) in a central region (13), preferably in the region of a cylinder axis, via at least one preferably annular or ring-segment-shaped inlet opening (19) with the lower part cooling space (7 ) is fluidly connected.
    [3]
    3. Internal combustion engine (1) according to claim 1 or 2, characterized in that the inflow channel (11) with a preferably substantially parallel to the cylinder axis (10 a) formed feed channel (11 a) is fluidly connected, which of at least one transfer opening (12) in the fire deck (18).
    [4]
    4. Internal combustion engine (1) according to one of claims 1 to 3, characterized in that the inflow channel (11) is shaped like a hook.
    [5]
    5. Internal combustion engine (1) according to any one of claims 1 to 4, characterized in that the inflow channel (11) is formed at least partially substantially normal to the cylinder axis (10 a).
    [6]
    6. Internal combustion engine (1) according to one of claims 1 to 5, characterized in that between the inflow channel (11) and the upper part of the cooling chamber (6) an upper partition (16) is arranged.
    [7]
    7. Internal combustion engine (1) according to one of claims 1 to 6, characterized in that a receiving surface (14) for a central component with the fire deck (18) and a lower partition wall (17) is connected.
    [8]
    8. Internal combustion engine (1) according to any one of claims 1 to 7, characterized in that the inlet opening (19) by an annular space (19 a) is formed, which preferably surrounds the receiving surface (14) for the central component at least partially.
    [9]
    9. Internal combustion engine (1) according to one of claims 1 to 8, characterized in that the upper part of the cooling chamber (6) with at least one coolant outlet (23) is connected, preferably per cylinder (10) in the region of a first cylinder head longitudinal side (3a) arranged coolant outlet (23) is provided.
    [10]
    10. Internal combustion engine (1) according to one of claims 1 to 9, characterized in that the Hauptüberströmöffnung (8) between the lower part of the cooling chamber (7) and the upper part of the cooling chamber (6) in the region of the coolant outlet (23) facing away from the second cylinder head longitudinal side (3b ) is arranged.
    11. Internal combustion engine (1) according to one of claims 1 to 10, characterized in that at least one Hauptüberströmöffnung (8) between the lower part of the cooling chamber (7) and the upper part of the cooling chamber (6) in the region of at least one radial channel (21) between two Auslasska -näle is arranged.
    12. Internal combustion engine (1) according to one of claims 1 to 11, characterized in that between the inflow channel (11) and the upper part of the cooling chamber (6) at least one Entgasungsübertritt (20) is arranged, wherein preferably the Entgasungsübertritt (20) in the region of the first cylinder head longitudinal side (3a) or in the region of the receiving bush (14) is arranged.

    Dipl.-Ing. Michael Babeluk A-1150 Vienna, Mariahilfer GQrtal 39/17 Tel. (+431) 892 99 33-0 Fax: (+43 1) 892 89 333 * a * «*" · twi ^ Ht »K» Kai mrst 2011 01 27 Fu / St



    -3b COMPLETED 4 / [ΑΛΑ ζ >

    filed later Λ ος2 > 1 56137vlp Aktenz .: 2Α Α 108/2011 Class: F 02 F (new) PATENT CLAIMS 1. A liquid-cooled internal combustion engine (1) with at least one cylinder (10), with a cylinder head (3), in which a lower partial cooling space (7) adjoining a fire deck (18) and an upper partial cooling space (6) connected to it via at least one main overflow opening (8), at least one inflow channel between the upper part cooling space (6) and the lower part cooling space (7) (11), preferably at least one inflow channel (11) per cylinder (10) is arranged, which is fluidly connected to the lower part of the cooling chamber (7), characterized in that the inflow channel (11) in a central region (13), preferably in the region of a cylinder axis, via at least one preferably annular or annular segment-shaped inlet opening (19) with the lower part of the cooling chamber (7) is fluidly connected. 2. Internal combustion engine (1) according to claim 1, characterized in that the inflow channel (11) with a preferably substantially parallel to the cylinder axis (10 a) formed feed channel (11 a) is flow-connected, which of at least one transfer opening (12) in the fire deck (18 ). 3. internal combustion engine (1) according to claim 1 or 2, characterized in that the inflow channel (11) is shaped like a hook. 4. internal combustion engine (1) according to one of claims 1 to 3, characterized in that the inflow channel (11) is formed at least partially substantially normal to the cylinder axis (10 a). 5. internal combustion engine (1) according to one of claims 1 to 4, characterized in that between the inflow channel (11) and the upper part of the cooling chamber (6) an upper partition wall (16) is arranged. 6. Internal combustion engine (1) according to one of claims 1 to 5, characterized in that a receiving surface (14) for a central component with the fire deck (18) and a lower partition wall (17) is connected. 7. Internal combustion engine (1) according to one of claims 1 to 6, characterized in that the inlet opening (19) by an annular space (19a) is formed, which preferably the receiving surface (14) for the central component at least partially surrounds. 8. Internal combustion engine (1) according to one of claims 1 to 7, characterized in that the upper part of the cooling chamber (6) with at least one coolant outlet (23) is connected, preferably per cylinder (10) in the region of a first Zyiinderkopflängsseite (3a) arranged coolant outlet (23) is provided. 9. Internal combustion engine (1) according to one of claims 1 to 8, characterized in that the Hauptüberströmöffnung (8) between the lower part of the cooling chamber (7) and the upper part of the cooling chamber (6) in the region of the coolant outlet (23) facing away from the second Zyiinderkopflängsseite (3b ) is arranged. 10. Internal combustion engine (1) according to one of claims 1 to 9, characterized in that at least one Hauptüberströmöffnung (8) between the lower part of the cooling chamber (7) and the upper part of the cooling chamber (6) in the region of at least one radial channel (21) between two Auslaßkanäie is arranged.

    [11]
    11. Internal combustion engine (1) according to one of claims 1 to 10, characterized in that between the inflow channel (11) and the upper part of the cooling chamber (6) at least one Entgasungsübertritt (20) is arranged, wherein preferably the Entgasungsübertritt (20) in the region of first Zyiinderkopflagsseite (3a) or in the region of the receiving bush (14) is arranged. 2011 10 20 ft / h FOLLOW-UP I
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    同族专利:
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    CN103597194B|2016-03-30|
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    WO2012101014A1|2012-08-02|
    DE112012000592A5|2014-02-13|
    RU2013139538A|2015-03-10|
    US20140020639A1|2014-01-23|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB931882A|1961-05-15|1963-07-17|Ricardo & Co Engineers|Liquid-cooled cylinder heads for internal combustion engines|
    JPS5445436A|1977-09-16|1979-04-10|Hino Motors Ltd|Cooler for diesel engine|
    AT5939U1|2002-01-25|2003-01-27|Avl List Gmbh|CYLINDER HEAD|
    AT501008A2|2006-02-02|2006-05-15|Avl List Gmbh|LIQUID-COOLED INTERNAL COMBUSTION ENGINE|
    AT503182A2|2007-04-05|2007-08-15|Avl List Gmbh|LIQUID-COOLED INTERNAL COMBUSTION ENGINE|AT518998B1|2016-12-07|2018-03-15|Avl List Gmbh|CYLINDER HEAD|
    AT523950A1|2020-06-18|2022-01-15|Avl List Gmbh|Cylinder head for an internal combustion engine|SU1559215A1|1987-04-27|1990-04-23|Ленинградский Кораблестроительный Институт|Cylinder head, ,particularly,, of low-speed liquid-cooled ic engine|
    JPS63186923U|1987-05-26|1988-11-30|
    JP2001200753A|2000-01-18|2001-07-27|Yanmar Diesel Engine Co Ltd|Cylinder head structure of engine|
    AT6342U1|2002-07-23|2003-08-25|Avl List Gmbh|CYLINDER HEAD FOR A LIQUID-COOLED MULTI-CYLINDER INTERNAL COMBUSTION ENGINE|US8869758B1|2013-10-09|2014-10-28|Ford Global Technologies, Llc|Exhaust valve bridge and cylinder cooling|
    SE1351555A1|2013-12-20|2014-12-09|Scania Cv Ab|Cooling arrangement for cooling at least one cylinder of a single-combustion engine|
    EP3040547B1|2015-01-02|2020-12-23|AVL Hungary LTD.|Cooling structure for a cylinder head of an internal combustion engine|
    IT201600087064A1|2016-08-24|2018-02-24|Fpt Ind Spa|INTERNAL COMBUSTION ENGINE INCLUDING A LIQUID COOLING CIRCUIT|
    IT201600087054A1|2016-08-24|2018-02-24|Fpt Ind Spa|INTERNAL COMBUSTION ENGINE INCLUDING A LIQUID COOLING CIRCUIT|
    CN106762192B|2016-12-21|2019-01-04|东风商用车有限公司|A kind of reverse-flow efficiently cooling four-valve engine cylinder head|
    CN106762193B|2016-12-21|2019-01-04|东风商用车有限公司|A kind of efficiently cooling four-valve engine cylinder head|
    DE102017109185A1|2017-04-28|2018-10-31|Volkswagen Aktiengesellschaft|Cylinder head housing and method for producing a cylinder head housing and casting core|
    DE102017212645A1|2017-07-24|2019-01-24|Bayerische Motoren Werke Aktiengesellschaft|Cylinder head for an internal combustion engine|
    AT521514B1|2018-09-14|2020-02-15|Avl List Gmbh|cylinder head|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT1082011A|AT510857B1|2011-01-27|2011-01-27|LIQUID-COOLED INTERNAL COMBUSTION ENGINE|AT1082011A| AT510857B1|2011-01-27|2011-01-27|LIQUID-COOLED INTERNAL COMBUSTION ENGINE|
    CN201280014866.7A| CN103597194B|2011-01-27|2012-01-18|The internal-combustion engine of liquid cooling|
    US13/983,612| US8939116B2|2011-01-27|2012-01-18|Liquid-cooled internal combustion engine|
    PCT/EP2012/050678| WO2012101014A1|2011-01-27|2012-01-18|Liquid-cooled internal combustion engine|
    RU2013139538/06A| RU2580570C2|2011-01-27|2012-01-18|Liquid cooled internal combustion engine|
    DE201211000592| DE112012000592A5|2011-01-27|2012-01-18|Liquid-cooled internal combustion engine|
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