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    • 4. 发明申请
    • ELECTROMAGNETICALLY CONTROLLED VALVE
    • 电磁驱动阀
    • WO9943948A3
    • 1999-10-28
    • PCT/DE9803476
    • 1998-11-26
    • BOSCH GMBH ROBERTEICHENDORF ANDREASSEBASTIAN THOMASTRUTSCHEL RALF
    • EICHENDORF ANDREASSEBASTIAN THOMASTRUTSCHEL RALF
    • F02M51/06F02M51/08
    • F02M51/061F02M51/0614F02M51/0682
    • The invention relates to an electromagnetically controlled valve, especially an injection valve for fuel injection systems of internal combustion engines, comprising a throttle point (10) which connects a core (2) and a connecting piece (8). The invention is characterised in that a ring-shaped insert (31) which supports the throttle point (10) in a radial direction is provided. The introduction of the ring-shaped insert (31) makes it possible to exploit the advantages of the construction of the valve tube (9) with the throttle point (10) whilst providing the stability necessary for high pressure valves. The invention is especially advantageous if the ring-shaped insert (31) is either made from an electrically non-conductive material or is interrupted in at least one place and secured so that it is electrically insulated. This prevents eddy currents from arising in the ring-shaped insert (31) when a magnetic field is changing, said insert lying at least partially within the range of the magnetic field of the magnet coil (1). Such eddy currents would have a negative effect on the switching times of the valve.
    • 本发明涉及一种电磁操作阀,特别是喷射阀的内燃机的燃料喷射系统,具有一个芯(2)和(8)相互连接的节流点(10),其特征在于,连接部设置的环状插入件(31) 是它支持在径向方向上的节流点(10)。 通过使用环形插入件(31)中,阀门管(9)与一个节流点(10)的构造的优点可在提供了用于高压阀门所需的稳定性的同时被利用。 特别有利的是,该环形插入物(31),以产生任一非导电材料制成,或者,以形成在至少一个点与中断附加电绝缘。 通过这种措施,可以防止在环形插入件(31),该变化磁场中至少部分地位于的磁线圈(1)的磁场的影响的范围内,涡流产生,这对阀的开关时间产生负面影响 ,