• 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:
    An internal combustion engine has a fuel injector in a side wall of each cylinder to direct a fuel jet onto a flat or concave impingement surface of a shield projecting into the cylinder from the cylinder head, to atomize the fuel in the vicinity of the sparking plug electrodes with minimal wetting of the cylinder walls and of the plug electrodes. The piston head is formed with an asymmetrically located combustion chamber surrounded by extensive "squish" areas arranged to promote the formation of a fuel vortex in which charge stratification occurs centrifugally.
    公开号:SU1080754A3
    申请号:SU802923552
    申请日:1980-05-21
    公开日:1984-03-15
    发明作者:Оччелла Серджо；Ариетти Джулио；Борелло Джанпьеро
    申请人:Чентро Ричерке Фиат С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to map-building and can be used in spark-ignited internal combustion engines. A spark-ignition internal combustion engine is known, comprising a cylinder with a non-piston disposed, a combustion chamber formed by a piston and a cylinder head in which a spark plug is disposed, a fuel injector installed in the side wall of the cylinder near its head, and the head is provided with a screen, axially protruding inside the cylinder and provided with a reflective surface located perpendicularly to the direction of the jet of fuel Qj. A disadvantage of the known engine is poor mixture formation and, as a consequence, high toxicity of exhaust gases. The purpose of the invention is to reduce the toxicity of exhaust gases. This goal is achieved by the fact that in an internal combustion engine with spark ignition, which contains a cylinder with a screw placed in it, a combustion chamber formed by a piston and a cylinder head, in which is placed a spark plug, a fuel injector installed in the side wall of the cylinder near its head the head is provided with a screen protruding axially inside the cylinder and provided with a reflective surface located perpendicular to the direction of the jet of fuel; the combustion chamber is made in a part of the bottoms Rhone hundred piston with the spark plug, the screen is located near the electrodes opposite the last nozzle and the latter is formed with a single axisymmetric, pa pylitelnym opening. The reflective surface of the screen is made concave or spherical, or cylindrical, and is also made with irregularities or a protrusion facing the inside of the cylinder and located near the ignition electrodes. FIG. 1 shows the engine at the time of fuel injection, cross section; figure 2 - piston top view; in fig. 3 - engine at the moment when the piston is at the top dead center, cross section; on Fig.4 the screen with a flat reflective-ncif 2 surface made in the recess; in fig. 5 - the same, with a large surface; in fig. 6 - the same, with a concave surface; Fig. 7 is the same, with a concave surface provided with protrusions; Fig. 8 is the same with a flat surface constituting an obtuse angle with the direction of the fuel jet; in fig. 9 - the same, with a flat surfactant (The mouth, forming an acute angle with the direction of the fuel jet; FIG. 10 - the same, with a reflective surface provided with one protrusion; FIG. 11 - the same, with a flat surface provided with Fig. 12 is the same, with a cylindrical surface provided with irregularities. The internal combustion engine comprises a cylinder 1 with a piston 2 equipped with a combustion chamber 3, a cylinder head 4 with a spark plug 5, a fuel injector 6 and a screen 7 a reflective surface 8 having irregularities 9 or a protrusion 10. In the piston 2 radially deepening 1 1. During engine operation, fuel is injected through each nozzle 1 into each zipingr 1 and collides with the reflective surface 8 of screen 7, which contributes to a thin dissipation of fuel in the region of the spark plug electrodes 5. fuel improves mixing, and the screen 7 prevents wetting of the surface of cylinder 1 opposite nozzle 6 and wetting of spark plug electrodes 5. At the same time, in the space between interacting surfaces g dexterous cylinder 4 and the piston 2 is practically no fuel. As the piston 2 moves toward the top dead center in the cylinder, a vortex is created around the horizontal axis. The outer part of the whirlwind will be enriched by the asymmetric arrangement of the combustion chamber 3 in the piston 2. The fuel-air mixture is ignited first along the periphery of the vortex, and then spreads inside the latter to the depleted air-fuel mixture. Due to the fact that these internal regions of the vortex are colder and, therefore, more dense, they tend to follow a centripetal spiral trajectory, which
    contributes to the rapid combustion of poor mixture.
    Figures 4-12 show the embodiments of the reflective surface 8 of the screen 7. The reflective surface 8 may be flat (| bg.5) or concave with spherical or mi-cylindrical curvature (Fig. 6). In the case. If the reflective surface 8 is flat or cylindrical FIG. 8.9), the angle A from the side of the cylinder head 4 between the axis of the jet of fuel and this reflective surface may differ from 90 and be, for example, 60-100 :. In this case, it is possible to shift the zone in which the mixture is formed.
    In case the reflective surface 8 is cylindrical with a horizontal axis and is provided on the edges with protrusions 10 (FIG. 7), then the width B of the surface between the protrusions 10 co8P7544
    10-20 mm for engines with a cylinder capacity of 300-500
    The reflective surface 8 may be provided with one protrusion 10, 5 located on a portion of the surface adjacent to the spark plug 5 (Fig. 10), while the protrusion 10 may have an annular flange or visor of circular shape with the center coinciding with the axis of the fuel jet.
    In addition, the reflective surface 8 may have, as in the case of a flat (Fig. 1 I), and in the case of a cylindrical (Fig. 12) form, irregularities 9 or protrusions 10 directed toward the fuel jet and facilitating the atomization of the fuel. I
    The invention makes it possible to reduce 20 the occurrence of carbon oxides in exhaust gases, increase the burning rate and reduce power losses.
    -
    eight
    CfJuff.6
    权利要求:
    Claims (4)
    [1]
    1. INTERNAL COMBUSTION ENGINE with spark ignition, comprising a cylinder with a piston located therein, a combustion chamber formed by a piston and a cylinder head, in which a spark plug is placed, a fuel nozzle mounted in a side wall of the cylinder near its head, the head being provided with a screen protruding in the axial direction inside the cylinder and equipped with a reflective surface located perpendicular to the direction of the fuel jet, characterized in that, in order to reduce the toxicity of the exhaust gases, and combustion is made in the bottom part of the piston by a spark plug, the screen is located near the last of the electrodes, opposite the nozzle, and the latter is provided with a 'axisymmetric spray hole.
    [2]
    2. The engine according to claim 1, about kicking in that the reflective surface of the screen is made concave.
    [3]
    3. The engine according to claim 2, characterized in that the reflective surface of the screen is made spherical or cylindrical.
    [4]
    4. The engine according to claim 2, characterized in that the reflective surface of the screen is made with irregularities or with a protrusion facing the inside of the cylinder and located near the electrodes of the spark plug.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1080754A3|1984-03-15|Internal combustion engine
    KR100588315B1|2006-06-12|Combustion system for direct injection diesel engines
    US4166436A|1979-09-04|Combustion chamber of an internal combustion engine
    US6013973A|2000-01-11|Spark plug having a sub-combustion chamber for use in fuel ignition systems
    US5335635A|1994-08-09|Combustion chamber for an internal combustion engine
    US5215052A|1993-06-01|Internal-combustion engine with predominantly swirl-free air inflow into a shallow combustion space
    US4538566A|1985-09-03|Combustion chamber in a diesel engine
    CA1326186C|1994-01-18|Spark-ignition air-compressing internal combustion engine
    US6098588A|2000-08-08|Injection device and combustion process for an internal combustion engine
    US6269789B1|2001-08-07|Direct fuel injection-type spark-ignition internal combustion engine
    US4041923A|1977-08-16|Internal combustion engine of lean air-fuel mixture combustion type
    JPH0647929B2|1994-06-22|Sub-chamber alcohol engine
    US5107810A|1992-04-28|Impingement combustion chamber of internal-combustion engine
    US4286557A|1981-09-01|Target injection stratified charge spark ignition engine
    US4191136A|1980-03-04|Combustion chamber of an internal combustion engine
    US11199155B2|2021-12-14|Piston crown for a combustion system and an associated method thereof
    US4237845A|1980-12-09|Internal combustion engine with an auxiliary combustion chamber
    EP1036922B1|2004-12-01|Direct fuel injection-type spark-ignition internal combustion engine
    US4693218A|1987-09-15|Internal combustion engine
    JP4115549B2|2008-07-09|Direct-injection spark ignition internal combustion engine
    JPH0333423A|1991-02-13|Internal combustion engine
    JPH0746733Y2|1995-10-25|Spark assist type alcohol engine
    JP3207624B2|2001-09-10|Engine combustion chamber structure
    KR20200069920A|2020-06-17|Piston combustion chamber structure of engine
    SU989115A2|1983-01-15|Combustion chamber
    同族专利:
    公开号 | 公开日
    US4318377A|1982-03-09|
    GB2049811A|1980-12-31|
    DE8013729U1|1981-12-17|
    FR2457376A1|1980-12-19|
    GB2049811B|1983-04-27|
    DE3019467A1|1980-11-27|
    IT7968082D0|1979-05-22|
    JPS55156213A|1980-12-05|
    IT1118641B|1986-03-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1967243A|1926-12-31|1934-07-24|Hesselman Motor Corp Ltd|Internal combustion engine|
    US2246019A|1938-01-26|1941-06-17|Steinlein Gustav|Two stroke internal combustion engine operating with fuel injection|
    DE958789C|1952-07-06|1957-02-21|Daimler Benz Ag|Internal combustion engine with mixture control and with external ignition of the mixture|
    US2800118A|1953-03-24|1957-07-23|Daimler Benz Ag|Four-cycle internal combustion engine having fuel injection means|
    FR1382110A|1963-07-04|1964-12-18|Inst Khim Fiz|Internal combustion engine|
    FR1449256A|1965-10-05|1966-08-12|Ford France|Advanced internal combustion engine|
    FR1536850A|1967-09-15|1968-08-16|Daimler Benz Ag|Method for injecting an adjustable quantity of fuel into the compression stroke of an internal combustion engine with independent ignition, and internal combustion engine for carrying out the method|
    GB1517117A|1976-07-02|1978-07-12|Ford Motor Co|Divided combustion chamber internal combustion engine|
    US4270498A|1978-04-18|1981-06-02|Centro Ricerche Fiat S.P.A.|Internal combustion engine|US4548172A|1983-06-22|1985-10-22|Caterpillar Tractor Co.|Ignition-assisted fuel combustion system|
    DE3626757A1|1985-12-20|1987-06-25|Glotur Trust Reg|INTERNAL COMBUSTION ENGINE WITH ONE OR SEVERAL CRUSH GAPS BETWEEN PISTON AND CYLINDER HEAD|
    DE3641601A1|1986-12-05|1988-06-16|Glotur Trust Reg|TWO-STROKE DOUBLE PISTON ENGINE|
    DE3702899A1|1987-01-31|1988-08-11|Porsche Ag|COMBUSTION CHAMBER FOR A PISTON PISTON COMBUSTION ENGINE|
    US5249557A|1991-02-18|1993-10-05|Sanshin Kogyo Kabushiki Kaisha|Fuel injection system for two cycle engine|
    JP3252196B2|1991-02-06|2002-01-28|ヤマハ発動機株式会社|In-cylinder two-stroke engine|
    US5305720A|1992-02-28|1994-04-26|Mitsubishi Jidosha Kogyo Kabushiki Kaisha|Internal combustion engine|
    US5421301A|1994-02-14|1995-06-06|Feuling; James J.|Direct cylinder fuel injection system for internal combustion engines|
    WO1996035044A1|1994-02-14|1996-11-07|Feuling James J|Direct cylinder fuel injector system|
    US5735240A|1995-06-19|1998-04-07|Yamaha Hatsudoki Kabushiki Kaisha|Direct injected engine|
    US5692468A|1995-07-25|1997-12-02|Outboard Marine Corporation|Fuel-injected internal combustion engine with improved combustion|
    JP3746344B2|1996-12-24|2006-02-15|トヨタ自動車株式会社|Combustion chamber structure of internal combustion engine|
    JPH10299486A|1997-04-30|1998-11-10|Yamaha Motor Co Ltd|Cylinder fuel injection engine|
    US5941207A|1997-09-08|1999-08-24|Ford Global Technologies, Inc.|Direct injection spark ignition engine|
    US5950596A|1997-10-28|1999-09-14|Brunswick Corporation|Fuel injector deflector|
    US6003488A|1998-07-15|1999-12-21|Chrysler Corporation|Direct injection spark ignition engine|
    US6386175B2|1999-03-05|2002-05-14|Ford Global Technologies, Inc.|Fuel injection|
    US6435159B1|2000-05-10|2002-08-20|Bombardier Motor Corporation Of America|Fuel injected internal combustion engine with reduced squish factor|
    DE10131110A1|2001-06-27|2003-01-09|Mann & Hummel Filter|Intermediate flange system for a direct injection internal combustion engine|
    US7111593B2|2004-01-29|2006-09-26|Ford Global Technologies, Llc|Engine control to compensate for fueling dynamics|
    US8141532B2|2007-03-22|2012-03-27|Ngk Spark Plug Co., Ltd.|Spark plug|
    TR201514417A2|2015-11-16|2017-02-21|Bosch Sanayi Ve Tic A S|An engine block which protects fuel injector against corrosion|
    DE102016212951A1|2016-07-15|2018-02-01|Ford Global Technologies, Llc|Direct-injection spark-ignition internal combustion engine with injection device arranged in the cylinder tube and method for operating such an internal combustion engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT68082/79A|IT1118641B|1979-05-22|1979-05-22|INTERNAL COMBUSTION ENGINE WITH COMMAND IGNITION AND PETROL INJECTION IN THE CYLINDER|
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