• 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:
    A valve is provided comprising a nozzle body formed with an internal space having an axis and a single valve seat adapted to receive fuel under pressure. It further includes a single nozzle needle movable in said space relative to and axially of said valve seat; and means including a single spray passage communicating with said valve seat for discharging from said nozzle body a jet of fuel having a spray pattern and an angular orientation relative to said axis which varies as a function of the distance of the single needle from the single valve seat.
    公开号:SU837334A3
    申请号:SU802877104
    申请日:1980-01-22
    公开日:1981-06-07
    发明作者:Мюллер Экарт
    申请人:Машиненфабрик Аугсбург-Нюрнберг(Фирма)；
    IPC主号:
    专利说明:

    (54) FUEL JET
    one
    FIELD: engine building.
    A known fuel injector for an internal combustion engine, containing an atomizer with a nozzle opening inclined to its axis and a sealing seat, is made with the possibility of axial movement i under the action of fuel pressure of a needle l flj. This nozzle has a complex structure.
    The purpose of the invention is to simplify the design of the nozzle.
    This goal is achieved by d - (5 that the projection along the nozzle axis of the outlet part of the nozzle hole to its input part is made with an overlap of an area equal to at least 20% of the total cross section of the nozzle hole, 20 and its length is less than or maximum equal to twice its diameter. The outer surface of the atomizer, to which the nozzle hole extends, may be flat and 25 perpendicular to the nozzle axis, it may be in the form of a conical surface located symmetrically in the nozzle axis, and also in the form of asymmetrical Noah conical surface or in the form of AOR
    the plane passing obliquely to the nozzle axis. .
    FIG. 1 shows a nozzle with a fully open needle; in fig. 2 partial view of the nozzle from the bottom; in fig. 3 - nozzle with partially open
    ; needle; in fig. 4 - nozzle with a local extension of the nozzle inlet; in fig. 5 - nozzle with asymmetrical local expansion inlet | Yes nozzle hole; in fig. 6 a nozzle with a line of intersection of the surfaces of the local expansion of the inlet and the nozzle opening inclined to its axis; in fig. 7 — nozzle with a cylindrical local expansion of the nozzle orifice inlet; 8 - nozzle with a cylindrical local expansion of the inlet of the nozzle opening, provided with a smooth transition.
    The nozzle contains a spreader 1 with a nozzle orifice 2 inclined to its axis and a sealing seat 3 and capable of axial movement of Il 4. The nozzle orifice can be made with a local extension of the inlet 5. Projection along the nozzle axis of the outlet part 6 of the nozzle orifice his input
    Part 7 is made with overlap in an area equal to at least 20% of the total cross section of the nozzle orifice, and the length of the latter is less or maximum, equal to twice its diameter. The outer surface of the atomizer 1, onto which the nozzle opening extends, can be made flat 8, located perpendicular to the nozzle axis, in the form of a symmetric conical surface 9, in the form of an asymmetrical conical surface 10.
    The nozzle works as follows.
    When the fuel pressure is increased, the needle 4 rises from its seat 3. Through the gap between it and the nozzle 1, fuel enters hole 2 and then into the combustion chamber of the engine. When the pressure is reduced, the needle is lowered onto the saddle and the fuel supply is stopped.
    权利要求:
    Claims (4)
    [1]
    Thus, the considered nozzle design, with ease of implementation, provides improved fuel delivery by adjusting the free section of the nozzle orifice. Claims 1. Fuel nozzle for an internal combustion engine, comprising an atomizer with a nozzle orifice inclined to its axis
    saddle and axially displaced under the action of fuel pressure, a needle, characterized in that, in order to simplify the design, the projection along the nozzle axis of the outlet part of the nozzle orifice onto its inlet part is made with an overlap of at least 20% of the total cross section of the nozzle holes, and the length of the latter is less than or maximum, equal to twice its diameter.
    [2]
    2. The injector according to claim 1, characterized in that the outer surface of the atomizer, to which the nozzle opening extends, is made
    5 is flat and perpendicular to the nozzle axis.
    [3]
    3. A nozzle according to claim 1, about tl and -, so that the outer surface of the atomizer, onto which the nozzle opening extends, is designed as a conical surface symmetrically aligned with the nozzle axis.
    [4]
    4. The injector according to claim 1, characterized in that the outer surface of the atomizer, onto which the emergence hole is located, is filled as an asymmetrical conical surface or as flat, passing inclined towards the nozzle axis. Sources of information taken into account in the examination 1. USSR author's certificate in patent No. 2674150 / 25-06, cl. F 02 M 61/10, 1978.
    6 /
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU837334A3|1981-06-07|Fuel jet
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    KR100342093B1|2002-06-26|A swirl generator in a fuel injector
    US5570841A|1996-11-05|Multiple disk swirl atomizer for fuel injector
    AU596679B2|1990-05-10|Improvements relating to the injection of fuel to an engine
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    US4082224A|1978-04-04|Fuel injection nozzle
    GB1311801A|1973-03-28|Fluid atomisers
    US5044561A|1991-09-03|Injection valve for fuel injection systems
    JP2002500308A|2002-01-08|Flat needle of pressurized vortex fuel injector
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    JPH0343658A|1991-02-25|Electromagnetic fuel injector for diesel engine
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    JPS62186112A|1987-08-14|Fuel spray nozzle device of burner for liquid fuel combustion
    SU981664A1|1982-12-15|I.c. engine injection nozzle sprayer body
    EP0308855A3|1990-07-25|Fuel injection nozzle
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    US5012983A|1991-05-07|Perforated plate for a fuel injection valve
    US2995121A|1961-08-08|Compression ignition fuel injection engine
    US5607109A|1997-03-04|Fuel injection nozzle and method of making
    SU968507A1|1982-10-23|Injection nozzle sprayer
    同族专利:
    公开号 | 公开日
    DE2902417C2|1988-09-08|
    JPS6250661B2|1987-10-26|
    FR2447471A1|1980-08-22|
    DD148808A1|1981-06-10|
    RO78800A|1982-04-12|
    GB2046835B|1983-04-20|
    AT368251B|1982-09-27|
    US4467966A|1984-08-28|
    SE441950B|1985-11-18|
    GB2046835A|1980-11-19|
    FR2447471B1|1985-11-22|
    JPS5598656A|1980-07-26|
    SE8000544L|1980-07-24|
    IT8019350D0|1980-01-22|
    IN154909B|1984-12-22|
    DE2902417A1|1980-07-31|
    CH642430A5|1984-04-13|
    IT1130874B|1986-06-18|
    HU182090B|1983-12-28|
    ATA29380A|1982-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2186216A|1935-02-04|1940-01-09|John W Smith|Apparatus for spraying liquid fuel into a combustion chamber having the required turbulence|
    DE662061C|1935-07-21|1938-07-04|Bosch Gmbh Robert|Fluid-controlled injection nozzle for internal combustion engines|
    FR899598A|1942-02-09|1945-06-05|Daimler Benz Ag|Injection process for internal combustion engines with injection into the pre-ignition chamber|
    GB651526A|1947-03-25|1951-04-04|Texaco Development Corp|Improvements in or relating to the method of operating internal combustion engines and to fuel injection devices for the same|
    FR1197303A|1957-07-05|1959-11-30|Maschf Augsburg Nuernberg Ag|Injector, especially for internal combustion engines|
    DE1252968B|1966-08-01|1967-10-26|Kugelfischer G Schaefer & Co|Pressure-controlled injection nozzle for internal combustion engines|
    DE2746010C2|1977-10-13|1985-02-14|M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg|Fuel injector for internal combustion engines|
    DE2750929C2|1977-11-15|1985-02-14|M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg|Fuel injector for internal combustion engines|
    DE2902417C2|1979-01-23|1988-09-08|Man Nutzfahrzeuge Gmbh, 8000 Muenchen, De|DE2902417C2|1979-01-23|1988-09-08|Man Nutzfahrzeuge Gmbh, 8000 Muenchen, De|
    JPS58139578U|1982-03-16|1983-09-20|
    DE3502642A1|1985-01-26|1986-07-31|Daimler-Benz Ag, 7000 Stuttgart|FUEL INJECTION VALVE FOR AN AIR-COMPRESSING INJECTION COMBUSTION ENGINE|
    US4621772A|1985-05-06|1986-11-11|General Motors Corporation|Electromagnetic fuel injector with thin orifice director plate|
    IT1213039B|1986-02-18|1989-12-07|Spica Spa|INTERNAL COMBUSTION. ELECTROMAGNETIC INJECTOR FOR ENGINES|
    US5033679A|1987-10-30|1991-07-23|Golev Vladislav I|Injector nozzle for a diesel engine|
    US5383597A|1993-08-06|1995-01-24|Ford Motor Company|Apparatus and method for controlling the cone angle of an atomized spray from a low pressure fuel injector|
    WO1995004881A1|1993-08-06|1995-02-16|Ford Motor Company|A fuel injector|
    JPH07204292A|1994-01-14|1995-08-08|Nippon Kinzoku Kogyosho:Kk|Dumbbell|
    US6935578B1|1998-11-25|2005-08-30|Hitachi, Ltd.|Fuel injection valve|
    JP3771361B2|1997-11-26|2006-04-26|株式会社日立製作所|Fuel injection valve|
    DE19825826A1|1998-06-09|1999-12-16|Siemens Ag|Fuel measurement and metering device for motor vehicle IC engine cylinder|
    DE19907897A1|1999-02-24|2000-08-31|Bosch Gmbh Robert|Fuel injector|
    US6308901B1|2000-02-08|2001-10-30|Siemens Automotive Corporation|Fuel injector with a cone shaped bent spray|
    WO2004070200A1|2003-02-04|2004-08-19|Mitsubishi Denki Kabushiki Kaisha|Fuel injection valve|
    US20080006713A1|2006-07-06|2008-01-10|Parish James R|Fuel injector having an internally mounted cross-flow nozzle for enhanced compressed natural gas jet spray|
    US9546633B2|2012-03-30|2017-01-17|Electro-Motive Diesel, Inc.|Nozzle for skewed fuel injection|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2902417A|DE2902417C2|1979-01-23|1979-01-23|
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