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    • 4. 发明公开
    • KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
    • KRAFTSTOFFEINSPRITZVENTILFÜRBRENNKRAFTMASCHINEN
    • EP1198672A1
    • 2002-04-24
    • EP01953120.1
    • 2001-06-27
    • ROBERT BOSCH GMBH
    • HAEBERER, RainerOHNMACHT, MarkusCHRIST, WilhelmMAIER, RalfHAUG, StefanFLEINER, WolfgangRUECKLE, Markus
    • F02M61/18
    • F02M61/1873F02M61/047F02M2200/30
    • The invention relates to a fuel injection valve comprising a valve body (1) and a bore (3) configured as a blind bore, whose bottom area faces the combustion chamber. A conical valve seat (9) is formed on said bottom area and accommodates at least one injection opening (11). A piston-shaped valve member (5) is disposed in the bore (3). Said valve member can be displaced in the longitudinal direction against a closing force and is provided with a valve tip (7) which rests against the valve seat (9) when the valve member (5) is in the closed position. A first cone surface (30) and a second cone surface (32) are configured on the valve member tip (7), said second surface being disposed so as to face the combustion chamber relative to the first cone surface. The cone angle (α) of the first cone surface (30) is smaller than the cone angle (η) of the valve seat (9), which in turn is smaller than the cone angle (β) of the second cone surface (32). An annular groove (35) is formed between the first (30) and the second cone surface (32), and an additional continuous annular groove (42) that at least partially overlaps the injection openings (11) in the closed position of the valve member (5) is formed on the second cone surface (32), thereby evenly providing all injection openings (11) with fuel even if the valve member (5) is misaligned.
    • 燃料喷射阀技术领域本发明涉及一种燃料喷射阀,其包括阀体(1)和构造为盲孔的孔(3),其底部区域面向燃烧室。 锥形阀座(9)形成在所述底部区域上并容纳至少一个注入开口(11)。 活塞形阀构件(5)设置在孔(3)中。 所述阀构件可以克服闭合力沿纵向移动并且设置有当阀构件(5)处于关闭位置时抵靠阀座(9)的阀尖(7)。 第一锥形表面(30)和第二锥形表面(32)构造在阀构件尖端(7)上,所述第二表面布置成相对于第一锥形表面面向燃烧室。 第一圆锥表面(30)的圆锥角(α)小于阀座(9)的圆锥角(η),其又小于第二圆锥表面(32)的圆锥角(β) )。 在第一圆锥表面(30)与第二圆锥表面(32)之间形成环形槽(35),并且在阀的关闭位置至少部分地与注射开口(11)重叠的另外的连续环形槽(42) 构件5形成在第二锥形表面32上,从而即使阀构件5未对准,也可均匀地向所有喷射开口11提供燃料。
    • 5. 发明授权
    • MAGNETVENTIL ZUR STEUERUNG EINES EINSPRITZVENTILS EINER BRENNKRAFTMASCHINE
    • EP1259729B1
    • 2006-01-18
    • EP01994586.4
    • 2001-11-16
    • ROBERT BOSCH GMBH
    • HAEBERER, RainerKOCH-GROBER, HermannRAPP, HolgerUHR, ChristofferRETTICH, AndreasFLEINER, WolfgangRUECKLE, Markus
    • F02M47/02F02M59/46
    • F02M47/027F02M63/0036F02M2200/304F02M2200/306F02M2547/003
    • The invention relates to an electromagnetic valve for controlling an injection valve of an internal combustion engine, comprising an electromagnet (29), a moving armature with an armature plate (28) and an armature pin (27); and a control valve member (25) which is moved with the armature and which interacts with a valve seat (24), for opening and closing a fuel drainage channel (17) of a control pressure chamber (14) of the injection valve (1). The armature plate (28) is mounted in such a way that under the influence of its inert mass, the armature plate can slide on the armature pin in the closing direction of the control valve member (25), in the opposite direction to the clamping force of a return spring (35) which acts on the armature plate. The inventive electromagnetic valve also comprises a hydraulic damping device with which the post-oscillation of the armature plate (28) after its dynamic displacement on the armature pin (27) can be damped. In order to simplify the assembly and reduce a disadvantageous post-oscillation process of the armature plate, the invention provides that the return spring (35) is supported on a support part (50) which is situated on the armature pin (27) and which is moved with said armature pin, by the end (62) of the return spring facing away from the armature plate (28). Said support part (50) also forms part (57) of the damping device.
    • 本发明涉及一种用于控制内燃机的喷射阀的电磁阀,其包括电磁体(29),具有电枢板(28)和电枢销(27)的活动电枢; 和一个与电枢一起运动并与阀座(24)相互作用的控制阀元件(25),用于打开和关闭喷射阀(1)的控制压力室(14)的燃料排放通道(17) )。 衔铁板(28)以这样的方式安装,即,在其惰性质量的作用下,衔铁板可以沿着控制阀构件(25)的关闭方向在衔铁销上沿与夹紧方向相反的方向 作用在衔铁板上的复位弹簧(35)的力。 本发明的电磁阀还包括液压阻尼装置,利用该液压阻尼装置可以衰减衔铁板(28)在衔铁销(27)上的动态位移后的后摆动。 为了简化组装并减少衔铁板的不利的后摆动过程,本发明规定复位弹簧(35)支撑在位于衔铁销(27)上的支撑部件(50)上,并且该支撑部件 通过复位弹簧的远离衔铁板(28)的端部(62)与所述衔铁销一起移动。 所述支撑部件(50)还形成阻尼装置的部分(57)。
    • 10. 发明授权
    • KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
    • KRAFTSTOFFEINSPRITZVENTILFÜRBRENNKRAFTMASCHINEN
    • EP1198672B1
    • 2003-09-17
    • EP01953120.1
    • 2001-06-27
    • ROBERT BOSCH GMBH
    • HAEBERER, RainerOHNMACHT, MarkusCHRIST, WilhelmMAIER, RalfHAUG, StefanFLEINER, WolfgangRUECKLE, Markus
    • F02M61/18
    • F02M61/1873F02M61/047F02M2200/30
    • The invention relates to a fuel injection valve comprising a valve body (1) and a bore (3) configured as a blind bore, whose bottom area faces the combustion chamber. A conical valve seat (9) is formed on said bottom area and accommodates at least one injection opening (11). A piston-shaped valve member (5) is disposed in the bore (3). Said valve member can be displaced in the longitudinal direction against a closing force and is provided with a valve tip (7) which rests against the valve seat (9) when the valve member (5) is in the closed position. A first cone surface (30) and a second cone surface (32) are configured on the valve member tip (7), said second surface being disposed so as to face the combustion chamber relative to the first cone surface. The cone angle ( alpha ) of the first cone surface (30) is smaller than the cone angle ( gamma ) of the valve seat (9), which in turn is smaller than the cone angle ( beta ) of the second cone surface (32). An annular groove (35) is formed between the first (30) and the second cone surface (32), and an additional continuous annular groove (42) that at least partially overlaps the injection openings (11) in the closed position of the valve member (5) is formed on the second cone surface (32), thereby evenly providing all injection openings (11) with fuel even if the valve member (5) is misaligned.
    • 燃料喷射阀技术领域本发明涉及一种燃料喷射阀,其包括阀体(1)和构造为盲孔的孔(3),其底部区域面向燃烧室。 锥形阀座(9)形成在所述底部区域上并容纳至少一个注入开口(11)。 活塞形阀构件(5)设置在孔(3)中。 所述阀构件可以克服闭合力沿纵向移动并且设置有当阀构件(5)处于关闭位置时抵靠阀座(9)的阀尖(7)。 第一锥形表面(30)和第二锥形表面(32)构造在阀构件尖端(7)上,所述第二表面布置成相对于第一锥形表面面向燃烧室。 第一锥形表面(30)的锥角(α)小于阀座(9)的锥角(γ),其又小于第二锥形表面(32)的锥角(β) )。 在第一圆锥表面(30)与第二圆锥表面(32)之间形成环形槽(35),并且在阀的关闭位置至少部分地与注射开口(11)重叠的另外的连续环形槽(42) 构件5形成在第二锥形表面32上,从而即使阀构件5未对准,也可均匀地向所有喷射开口11提供燃料。