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    • 2. 发明申请
    • FUEL INJECTION VALVE
    • 燃油喷射阀
    • WO1991002898A1
    • 1991-03-07
    • PCT/DE1990000518
    • 1990-07-11
    • ROBERT BOSCH GMBHPREUSSNER, Christian
    • ROBERT BOSCH GMBH
    • F02M61/18
    • F02M61/1853F02M61/16
    • Protecting caps of fuel injection valves have a through opening aligned with the injection opening in which high-boiling components of the fuel lead to deposits, once the internal combustion engine is stopped, which reduce the cross-section of the through opening or even partially cover the injection opening. The protecting cap (20) disclosed has a recess (29) that extends outwards in the radial direction from the through opening (27) and that is so narrow that it exerts a capillary effect on the fuel, so that when the internal combustion engine is stopped, the high-boiling components of the fuel are deposited, because of the capillary effect, on the outer radial edge of the recess (29), keeping the injection opening (16) free from deposits. This protecting cap can be used with fuel injection valves of various types.
    • 燃料喷射阀的保护盖具有与喷射开口对准的通孔,其中,一旦内燃机停止,燃料的高沸点部分就会沉积,从而减少通孔的横截面或甚至部分覆盖 注射口。 所公开的保护盖(20)具有从通孔(27)沿径向向外延伸的凹部(29),并且其窄使其对燃料施加毛细作用,因此当内燃机是 停止,由于毛细管效应,燃料的高沸点组分沉积在凹部(29)的外径向边缘上,保持注射开口(16)不沉积。 该保护盖可以用于各种类型的燃油喷射阀。
    • 3. 发明申请
    • FUEL INJECTION VALVE
    • 燃料喷射阀
    • WO1997006365A1
    • 1997-02-20
    • PCT/DE1996001358
    • 1996-07-24
    • ROBERT BOSCH GMBHHANS, WaldemarBETZEL, ThomasASSLÄNDER, PeterBRÜCKNER, ReinholdGRYTZ, UwePREUSSNER, ChristianLAUTER, StefanBOTTLER, RainerSCHMIDT-HEBBEL, Robert
    • ROBERT BOSCH GMBH
    • F02M69/04
    • F02M69/047F02M43/04F02M51/06F02M61/1853
    • In known fuel injection valves, gas is supplied in an adapter through gas supply channels oriented towards the fuel in a central opening. These adapters are made of a single piece, so that no variable gas dosage is possible and machining the gas supply channels is made more difficult. The new adapter body (50) for a fuel injection valve (1), however, is made of several pieces, namely a base body (51) and at least one calibrating sleeve (52). Gas is supplied and dosed through the calibrating sleeve (52), whereas the base body (51) serves only for sealing and fixing purposes. Size-accurate calibrating sleeves (52) may be easily and economically machined. This design allows a great diversity of embodiments to be obtained in a simple manner. This fuel injection valve is particularly useful for fuel injection systems of spark-ignited, high compression ratio internal combustion engines.
    • 与已知的燃料喷射器,气体供应是通过气体供给通道,其被引导到燃料中的中央开口实现插头主体。 这些头体是一体,使得没有可变气体计量是可能的,并引入了气体供给通道是困难的。 与此相反,上述燃料喷射阀(1)的新的头本体(50)被构造在几个部分组成,即基体(51)和至少一个校准套筒(52)。 气体供给和-zumessung现在发生由校准套筒(52),而所述基体(51)用于密封和安装。 校准(52)的尺寸精确的加工简单,成本低。 从大范围导致以简单的方式变体的结构设计。 的燃料喷射阀特别适合于混合物点火内燃发动机的燃料喷射系统。
    • 4. 发明申请
    • FUEL-INJECTION VALVE
    • 燃油喷射阀
    • WO1991019900A1
    • 1991-12-26
    • PCT/DE1991000469
    • 1991-06-04
    • ROBERT BOSCH GMBHHANS, WaldemarPREUSSNER, Christian
    • ROBERT BOSCH GMBH
    • F02M61/18
    • F02M61/168F02M61/1853
    • Prior art fuel-injection valves have a cup-shaped protective cap with a recess extending radially outwards from the cap. Together with the injection valve, the recess forms a gap which is small enough to exert a capillary effect on the fuel so that, when the engine is turned off, the high-boiling components of the fuel are deposited at the outer edge of the gap and the injection apertures stay free of deposits. The protective cap (20) proposed by the invention has at least three protuberances (30) integral with the bottom (28) of the cap, the protuberances projecting out a given longitudinal distance (31) towards the injection valve and abutting the orifice plate (15) of the valve. A longitudinal gap (36) of defined width is thus formed by simple means between the floor (28) of the cap and the aperture plate (15). The protective cap disclosed can be used in various types of fuel-injection valve.
    • 现有技术的燃料喷射阀具有杯形保护盖,其具有从盖径向向外延伸的凹部。 与喷射阀一起,凹部形成足够小的间隙以对燃料施加毛细管效应,使得当发动机关闭时,燃料的高沸点组分沉积在间隙的外边缘处 并且注射孔保持没有沉积物。 由本发明提出的保护盖(20)具有至少三个与盖的底部(28)成一体的突起(30),突出部朝向喷射阀突出给定的纵向距离(31)并邻接孔板 15)。 因此,通过在盖的地板(28)和孔板(15)之间的简单装置形成具有限定宽度的纵向间隙(36)。 所公开的保护盖可用于各种类型的燃料喷射阀。
    • 5. 发明申请
    • FUEL INJECTION VALVE
    • 燃料喷射阀
    • WO1998013837A1
    • 1998-04-02
    • PCT/DE1997002160
    • 1997-09-24
    • ROBERT BOSCH GMBHSCHULDT, DietrichREITER, FerdinandMÜLLER, MartinYUAN, BoEICHENDORF, AndreasGLUMANN, ChristianeSEBASTIAN, ThomasSTOKMAIER, GerhardNORGAUER, RainerPREUSSNER, ChristianSCHNEIDER, RainerKEIM, NorbertMARTIN, Ottmar
    • ROBERT BOSCH GMBH
    • H01F03/08
    • H01F3/08F02M51/0671F02M2200/07F02M2200/9092H01F2007/1676
    • The present invention relates to a fuel injection valve for fuel injection systems in internal combustion engines. Said valve is characterized by a core (2) acting as an internal pole made of a soft magnetic powder composite . Powder composite is an iron powder provided with a polymer additive and its individual iron grains are covered with an electrically isolating layer. Such a powder composite enables significant minimization of eddy current in magnetic circuit in comparison with other known materials such as chrome steel, which are usually employed as magnetic composites. The mechanically and fuel sensitive core (2) is encapsulated at least with regard to the fuel circulating components of the fuel injection valve. To this effect a sleeve (10) protrudes through an inner longitudinal opening (7) of the core (2) enabling internal fuel flow and is firmly connected to a pole section (13) occluding the core downwards. The core (2) and the magnetic coil are therefore not exposed to wetting by fuel. The fuel injection valve is particularly suited for use in fuel injection systems in mixture compressing internal combustion engines with externally supplied ignition.
    • 本发明涉及一种燃料喷射阀的内燃机,其特征在于,极作为软磁性粉末复合物(复合材料)的芯(2)由燃料喷射系统。 在复合粉末是设置有聚合物添加剂和其中各个铁颗粒被涂覆有电绝缘层的铁粉。 这样的粉末复合材料确保在相对于先前已知的材料,如不锈钢制成,其通常被用作磁性材料的磁性电路显著涡电流减少。 的机械敏感和相对燃料芯(2)位于至少相对于包封前的喷射阀的燃料载流部件。 在这种情况下,套筒(10)通过所述芯(2)的内纵向开口(7),它允许在其内部,并用一个芯(2)向下最终极片(13)被固定地连接燃料流突出。 因此,芯(2)和磁体线圈(1)暴露于燃料润湿。 燃料喷射器是特别适用于在混合物火花点火内燃发动机的燃料喷射系统中使用。
    • 6. 发明申请
    • INJECTION VALVE, PARTICULARLY FOR DIRECT INJECTION OF FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
    • 喷射器,尤其是对燃料在燃烧室内燃发动机的直喷式
    • WO1998007980A1
    • 1998-02-26
    • PCT/DE1997001213
    • 1997-06-14
    • ROBERT BOSCH GMBHREMBOLD, HelmutMÜLLER, MartinPREUSSNER, Christian
    • ROBERT BOSCH GMBH
    • F02M61/08
    • B23H9/00F02M61/08F02M61/162F02M61/168
    • This invention concerns an injection valve, particularly for direct injection of fuel into a combustion chamber of an internal combustion engine, with a valve body (13) which has a valve inlet (17) surrounded by a valve seat (16) to form an injection orifice (30) and with a valve needle (18) which has a closing head (19) biased in its closed position under spring tension which extends through the valve seat (16), so that the closing head (19), which co-operates with the valve seat (16), seats on the injection side of the valve seat (16) when the valve is closed. To provide exact and constant fuel metering with such an injection valve over time, a plurality of fuel channels (29, 29', 29'') are distributed peripherally in the flow path before the injection orifice (30), so that fuel jets or strands which exit from these channels are essentially preserved until they pass the injection orifice (30) and so that the individual cross sections of the fuel channels (29, 29', 29'') together determine the cross section of the flow route through the valve.
    • 本发明涉及一种喷射阀,特别是用于直接喷射燃料到内燃机的燃烧室,与阀本体(13),用于形成从阀座的喷雾开口(30),(16)具有包围所述阀开口(17),并用 预张紧在它们的闭合位置时,闭合通过阀开口,从而延伸头(19),其具有阀针(18)(17)延伸穿过与所述阀座(16)配合关闭头(19)排出侧(与阀关闭到阀座16 )是否存在。 为了保证在长时间内燃料计量准确和恒定在这样的喷射阀设置在所述喷射开口(30)之前,所述流路具有多个圆周分布的燃料导管(29,29“ 29' ”)被布置在这样一种方式,从它们 离开燃料射流或-strähnen基本上保留过去喷孔(30),并且燃料通道(29,29“ 29' ”)的各个横截面一起限定流量通过阀确定的流路的截面。
    • 8. 发明申请
    • FUEL INJECTION VALVE
    • 燃料喷射阀
    • WO1997008453A1
    • 1997-03-06
    • PCT/DE1996000994
    • 1996-06-05
    • ROBERT BOSCH GMBHPREUSSNER, ChristianETZEL, Dieter
    • ROBERT BOSCH GMBH
    • F02M61/18
    • F02M61/1853F02M61/16
    • With fuel injection valves, especially for direct injection into the combustion chamber of internal combustion engines, there is the risk that the fuel injection pattern and fuel metering may be undesirably influenced by the formation of deposits around the injection nozzle aperture. Such effects on the injected fuel owing to deposit formation are to be prevented by the novel fuel injection valve. At the injection end of the fuel injection valve there is a thin perforated injection disc (14) having an injection aperture (18) in a shaped section (20) in its central region. The length (1) of the injection aperture (18) along the longitudinal axis (2) of the valve is larger than the thickness (s) of the injection disc (14). A protective collar (26) prevents the shaped section (20) from damage. The fuel injection valve is especially suitable for direct injection into the combusion chamber of an internal combustion engine.
    • 在燃料喷射阀,特别是与直接注射入内燃机的燃烧室内,存在不期望地由沉积物的形成在喷射口的影响的危险时,燃料喷射的喷射模式和燃油计量。 新的燃料喷射器影响燃料射流应该由沉积物的形成来避免。 在燃料喷射的喷射端阀的薄多孔喷雾盘(14)被布置,从而形成在其中心部分在一个变形(20)喷射口(18)。 在阀纵轴线(2)的方向上的Abspritzloches(18)的长度(l)大于穿孔的喷雾盘(14)的厚度(S)大。 一个保护套环(26)避免了对变形(20)的损坏。 燃料喷射器是特别适用于直接喷射到内燃机的燃烧室。
    • 9. 发明申请
    • GAS DISTRIBUTION DEVICE FOR FUEL INJECTION SYSTEMS
    • 配气装置用于燃料喷射系统
    • WO1996007026A1
    • 1996-03-07
    • PCT/DE1995000694
    • 1995-05-26
    • ROBERT BOSCH GMBHHANS, WaldemarLANGE, JörgBETZEL, ThomasPREUSSNER, Christian
    • ROBERT BOSCH GMBH
    • F02M69/08
    • F02M51/005F02M67/00F02M69/08F02M69/46
    • The novel gas distribution device (1) has a common gas supply line (70) with an internal supply aperture (71), designed to supply gas to several devices (2) arranged, for example, in series, forming a basic body and a number of connectors (7) corresponding to the number of fuel-gas mixture injection devices (2) which extend perpendicularly outwards from the gas supply line (70) and contain branch apertures (73) directly connected to the supply aperture (71). A fixed connection between the gas distribution device (1) and the devices (2) is provided in that on the gas containing bodies (3) at least partially surrounding the devices (2) there are gas inlet channels (13) having functional components (52) projecting into the connectors (7) of the gas distribution device (1). The gas is provided in the supply aperture (71) for all the devices (2) at the same time and then flows via a connector (7) to a device (2). The gas distribution device (1) thus takes the form of a very compact unit which can be fitted and removed very easily. The gas distribution device of the invention is particularly suitable for fuel injection systems of mixture-compressing spark-ignition internal combustion engines.
    • 新的气体分配器装置(1)包括一个共同的气体供应,多个布置,例如,在串联装置(2)服务,构成气体供给管(70)具有内供应孔口(71)和设备(2)的数目中的一个用于喷射燃料的基体 包含对应的气体供给管(70)的连接件(7)的数量由其垂直和直接延伸到所述供给开口(71)进行通信的分支开口部(73)上的气体混合物。 气体分配器装置(1),并创建在(2)的设备之间的固定连接装置(2)至少部分地围绕Gasumfassungskörpern(3)的气体入口通道(13)被布置,其具有的功能元件(52)和与这些 在气体分配器装置的连接件(7)(1)突出。 的气体被提供用于所有装置(2)在所述供给开口(71)同时,然后经由相应的连接件(7)的装置(2)流动。 气体分配器装置(1)因此代表了非常紧凑的装置,这是非常容易组装和拆卸。 本发明的气体分配装置特别适合于混合物中,火花点火式内燃机的燃料喷射系统。
    • 10. 发明申请
    • ELECTROMAGNETICALLY OPERATED FUEL-INJECTION VALVE
    • 电磁操作燃油喷射阀
    • WO1991019089A1
    • 1991-12-12
    • PCT/DE1991000331
    • 1991-04-24
    • ROBERT BOSCH GMBHHANS, WaldemarPREUSSNER, Christian
    • ROBERT BOSCH GMBH
    • F02M51/06
    • F02M51/0678F02M51/0671
    • In prior art fuel-injection valves, a stop plate which limits the stroke of the valve needle is located between a stop shoulder on the valve needle and an inner shoulder of the valve housing, the stop plate having a mounting slot between its port and its periphery. When the valve housing is flanged, the high axial forces produced give a high pressure acting on the edge of the mounting slot and causing non-uniform distortion of the valve housing. In the new fuel-injection valve proposed, there are at least two recesses (75) in an upper stop surface (73) of the stop plate (16) abutting the inner shoulder of the valve housing. These recesses are symmetrically disposed with respect to the centre line (76) of the mounting slot (70) and in the half of the stop plate (16) not containing the mounting slot (70). The recesses (75) ensure that the stop plate (16) deforms uniformly and to a limited extent into the valve housing. This design of fuel-injection valve is particularly suitable for fuel-injection systems in externally ignited internal-combustion engines.
    • 已知的燃料喷射阀模型包括在阀针的止动台肩和阀笼的内肩之间的限定针的行程的止动板,该止动板包括 安装槽位于其通孔与其周边之间。 由于阀笼的翻边和相应较大的轴向力,安装槽处的脊部受到相当大的压缩以及保持架的不规则变形。 在新的燃料喷射阀中,抵靠阀笼的内肩部布置的止动板(16)的上部止动表面(73)具有至少两个凹部(75)。 相对于安装槽(70)的中心线(76)对称地设置,并且在不包含安装槽(70)的止动板(16)的一半中。 凹槽(75)导致阀笼中的支座板(16)的规则且减小的变形。 燃料喷射阀的这种构造特别适用于具有外部点火的内燃机的燃料喷射装置。