• 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:
    Heat conducting shield member for cylinder heads of internal combustion engines having at least two gas change ports with valve seat rings at their combustion chamber end, with the valve bridge portion between the valve seat rings shielded by the shield member against the combustion chamber. The shield member is formed as a heat conducting shield which in the area of the valve bridge portion between the bridge and the cylinder head wall forms a hollow space and is in full contact with the cylinder head in the area of cylinder head wall members which can be readily cooled.
    公开号:SU974939A3
    申请号:SU792755503
    申请日:1979-04-18
    公开日:1982-11-15
    发明作者:Урлауб Альфред
    申请人:Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to machine building "NIJ and can be used in dviga-: telyah combustion.
    Known cylinder heads of the engine / internal combustion engine, comprising a housing with at least two gas exchange channels equipped with annular seats for valves and a jumper between them, and a heat shield installed in the recess of the cylinder head from the side of the combustion chamber and adjacent at least in the area of the lintel with its lateral side and the outer diameter of the seats [1].
    However, in such devices the heat removal from the aeons of the jumper is poorly organized.
    The purpose of the invention is to increase the cooling efficiency of the cylinder head.
    This goal is achieved by the fact that the screen is provided with a recess, forming an air gap between the screen and the jumper, and fits snugly to the bottom of the head in the area with well-organized cooling. 25
    In addition, the recess is made in the form of a longitudinal groove located in the direction of the axis connecting the middle of the valve seats, the heat shield is made up of two plates overlapping in the direction perpendicular to the axis connecting the middle of the valve seats, the holes for the fuel injector are made in the heat shield and spark plugs, the screen is fixed using screws or welding, etc.
    In FIG. 1 schematically shows the proposed head, view from the side of the Combustion chamber; in FIG. 2 - cylinder head, section; in FIG. 3 - heat shield of another design from the side of the combustion chamber; in FIG. 4 same side view.
    The cylinder head 1 contains inlet 2 and outlet 3 channels, equipped with annular seats of valves 4 and 5, bottom 6. Between the gas exchange channels 2 and 3 there remains a relatively narrow jumper 7, located in the most
    97 unfavorable conditions in terms of heat stress, as it is located quite far from the cooling cavity 8. The jumper 7 is closed by a heat-shielding screen 9, which in the zone of the jumper 7 is equipped with a recess 10 ^ forming an air gap between the screen and the jumper, and in the zone with well-organized cooling it fits snugly on the bottom 6 with its wide parts in areas 11 and 12 of the cylinder head 1 The heat shield 9 is fixed '(Fig. 2) in the bottom 6 by means of nuts 13 and fits snugly against the outer diameter of the seats of the valves 4 and 5, thus forming. way of fencing. As a result, the heat sink runs in prois of jumpers zone 7 in a well-organized cooling zone.
    In FIG. 3 and 4, an embodiment of a heat shield 9 is shown. Here, the recess 14, which forms the insulating hollow space, is laterally closed and open only from the side of the bridge 7. In addition, the heat shield 9 consists of two parts that are overlapped in the middle by an inclined surface 15 or can be joined together by a narrow seam.
    Several recesses 10 and 14 can be made if, for example, it is necessary to shield the nozzle as well.
    The invention improves the heat dissipation from the die bottom zone of the cylinder with a poor thermal state and improve cooling 35 Nia headroom.
    权利要求:
    Claims (5)
    [1]
    adverse conditions from the point of view of heat accumulation, since it is far enough away from cavity 8 is cooled. The jumper 7 is closed with a heat shield 9, which in the area of the pebble 7 is provided with a recess 1O. forming an air gap between the screen and the jumper, and in an area with well organized cooling, the float lies adjacent to the bottom with its wide parts in zones 11 and 12 of the cylinder head 1. The heat shield 9 is strengthened (FIG. 2) in the bottom 6 sec. nuts 13 and fits snugly to the outer diameter of the valve seats 4 and 5, thus forming. way fencing. As a result, the shchuis moves the heat sink from the zone of the eemgchki 7 to the zones with well-organized cooling. FIG. 3 and 4, an embodiment of the heat shield 9 is shown. Here, the recess 14, which forms the insulating hollow space, is laterally closed and open only from the lintel 7. In addition, the heat shield 9 consists of two parts, which in the middle are overlapped with an inclined surface 15 or can join with each other with a narrow schvom. You can perform several notches 10 and 14, if, for example, you need to shield also the nozzle. The invention allows for improved heat removal from the bottom zone of a cylinder head with an unfavorable thermal state and an increase in cooling efficiency in the lintel zone. Claim 1. The cylinder head of an internal combustion engine, comprising a housing with at least two gas exchange chambers equipped with annular DvOI valve seats and a jumper between them, and a heat shield mounted in the bottom of the head of the combustion chamber of the third of the combustion chamber and the adjacent shield adjacent to the combustion chamber the area of the lintel with its side to the outer diameter of the saddles, is characterized in that, in order to increase the cooling efficiency, the screen is provided with a notch forming an air gap between the screen and oh, and it adheres to the bottom of the head in an area with a well-organized cooling,
    [2]
    2. The head of claim 1, wherein the recess is made in the form of a longitudinal groove located in the direction of the axis connecting the middle of the valve seats.
    [3]
    3. The head according to claim 1, wherein the heat shield is made of a composite of two plates overlapped in the direction perpendicular to the axis connecting the middle of the valve seats.
    [4]
    4. The head according to claim 1, characterized in that openings for the fuel injector and the spark plug are filled in the heat shield.
    [5]
    5. The head of claim 1, so that the screen is fixed with screws or welding, etc. Sources of information taken into account in the examination 1. Application of Germany No. 2459186 cl. CHB2R 1/42, published. 1976.
    类似技术:
    公开号 | 公开日 | 专利标题
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    US4294203A|1981-10-13|Internal combustion engine with integral upper cylinder section and head
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    US1231903A|1917-07-03|Cylinder of internal-combustion engines and other similar machines.
    US2622579A|1952-12-23|Combustion chamber for internal-combustion engines
    JPH0674042A|1994-03-15|Structure of cylinder head for four-valve type internal combustion engine
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    EP3051092B1|2018-03-28|Cooling of pre-chamber in internal combustion engine
    US6584948B2|2003-07-01|Internal combustion engine
    EP0203531B1|1990-08-22|Cylinder head with coolant passage following squish area and of generally uniform cross sectional area
    US2985155A|1961-05-23|Air-cooled internal combustion engines
    US2808041A|1957-10-01|Engine
    GB2073335A|1981-10-14|Internal combustion engine gasket
    同族专利:
    公开号 | 公开日
    GB2021685B|1982-09-22|
    DE2816923A1|1979-10-31|
    FR2423643A1|1979-11-16|
    HU179763B|1982-12-28|
    IT1113886B|1986-01-27|
    JPS54140012A|1979-10-30|
    IT7921800D0|1979-04-12|
    RO77468A|1981-11-04|
    DE2816923C2|1983-01-27|
    DD143094A1|1980-07-30|
    GB2021685A|1979-12-05|
    SE7903412L|1979-10-20|
    IN151902B|1983-09-03|
    US4290396A|1981-09-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3125082A|1964-03-17|Internal combustion engine cylinder heads |
    FR807651A|1935-06-15|1937-01-19|Internal combustion engine|
    DE1098283B|1956-09-18|1961-01-26|Maschf Augsburg Nuernberg Ag|Air-compressing, self-igniting internal combustion engine|
    GB968342A|1961-03-01|1964-09-02|Ruston & Hornsby Ltd|Improvements in internal combustion engine cylinder heads|
    US3115127A|1961-10-02|1963-12-24|Charles O Spencer|Removable insert for internal combustion chambers|
    US3408995A|1967-05-22|1968-11-05|Thomas A. Johnson|Combustion chamber design and material for internal combustion cylinders and engines|
    DE2061930C2|1970-12-16|1983-10-20|Klöckner-Humboldt-Deutz AG, 5000 Köln|IC engine light alloy cylinder head - has cooling passages in ribbed zone of plate between valve seats|
    DE2459186C3|1974-12-14|1980-02-14|Kloeckner-Humboldt-Deutz Ag, 5000 Koeln|Cylinder head for a reciprocating internal combustion engine|
    JPS5426409Y2|1975-03-14|1979-08-31|
    US4034723A|1975-10-06|1977-07-12|General Motors Corporation|Insulated, high efficiency, low heat rejection, engine cylinder head|DE2816989A1|1978-04-19|1979-10-25|Maschf Augsburg Nuernberg Ag|APPLICATION OF A PROCESS FOR PASTING A MATERIAL ON A PREFABRICATED WORKPIECE WITH SPECIAL MATERIAL PROPERTIES|
    FR2509372B1|1981-07-10|1983-12-02|Renault Vehicules Ind|
    DE3331145C2|1983-08-30|1986-08-28|Audi AG, 8070 Ingolstadt|Light alloy cylinder head for reciprocating internal combustion engines|
    DE3544787A1|1985-12-18|1987-06-19|Kloeckner Humboldt Deutz Ag|Cylinder head with a divided heat shield for an internal combustion engine|
    IT1235593B|1989-09-12|1992-09-11|Vm Motori Spa|ENGINE HEAD, IN PARTICULAR OF THE COMPRESSION IGNITION TYPE|
    FR2736968B1|1995-07-18|1997-08-29|Renault|CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE PROVIDED WITH A THERMAL SHIELD OF PONTET|
    DE102007053371A1|2007-11-09|2009-05-14|Man Nutzfahrzeuge Ag|Cylinder head for internal combustion engine, has chamber-side cylinder head surface facing combustion chamber of internal combustion engine|
    US8061030B2|2008-01-07|2011-11-22|Outhouse Henry J|Cylinder head insert method|
    JP4815513B2|2009-07-06|2011-11-16|川崎重工業株式会社|Gas turbine combustor|
    WO2012112084A1|2011-02-17|2012-08-23|Volvo Lastvagnar Ab|Cylinder head cooling insert|
    WO2017082846A1|2015-11-11|2017-05-18|Ford Otomotiv Sanayi A. S.|Multi-piece cylinder head|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2816923A|DE2816923C2|1978-04-19|1978-04-19|Cylinder head for internal combustion engines|
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