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公开(公告)号：US20150102135A1
公开(公告)日：2015-04-16
申请号：US14398997
申请日：2013-05-07
发明人： Ileana Romeo
IPC分类号： F02M51/06
CPC分类号： F02M51/0632 , F02M51/0685 , F02M2200/306
摘要： A valve assembly for an injection valve includes a valve body having a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity between a closing position preventing a fluid flow through the fluid outlet portion and further positions releasing the fluid flow through the fluid outlet portion, an electro-magnetic actuator unit that actuates the valve needle, and includes an axially movable armature in the cavity and a disc element fixedly coupled to the valve needle and configured to limit the axial movement of the armature relative to the valve needle towards the fluid outlet portion. An armature spring biases the armature away from the disc element for establishing a fluid-filled gap between the armature and the disc element. The armature is axially displaceable towards the disc element against the armature spring bias to reduce an axial size of the gap.
摘要翻译： 一种用于喷射阀的阀组件包括具有流体入口部分和流体出口部分的空腔的阀体，可在空腔中轴向移动的关闭位置之间的阀针，该关闭位置防止流体流过流体出口部分，并且进一步位置释放 通过流体出口部分的流体流动，致动阀针的电磁致动器单元，并且在空腔中包括可轴向移动的电枢，以及固定地联接到阀针并被配置为限制电枢的轴向运动的盘元件 相对于阀针朝向流体出口部分。 电枢弹簧将电枢偏离盘元件偏置，以在电枢和盘元件之间建立流体填充的间隙。 电枢可抵抗电枢弹簧偏压朝向盘形元件轴向移动以减小间隙的轴向尺寸。
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公开(公告)号：US20170191455A1
公开(公告)日：2017-07-06
申请号：US15468499
申请日：2017-03-24
发明人： Ileana Romeo , Tommaso Rosi
CPC分类号： F02M51/0685 , F02M61/12 , F02M61/188 , F02M2200/02 , F02M2200/07 , F02M2200/9038 , F02M2200/9069
摘要： An injection valve, including a valve body having a longitudinal axis; a valve needle axially movable in the valve body between closed and open positions; and an actuator having a movable armature coupled to the valve needle in order to move same, and a pole element fixed in the body, wherein an armature surface contacts a pole surface when the valve needle reaches the open position. The valve needle has a needle sleeve arranged in a through opening of the pole element such that a lateral surface of the needle sleeve is in sliding contact with the surface of the through opening for guiding valve needle movement. At least one of the surface of the through opening and the lateral surface of the needle sleeve is formed by a chromium nitride layer. The pole surface includes plural annular surfaces, only one of which contacts the armature surface.
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公开(公告)号：US09605636B2
公开(公告)日：2017-03-28
申请号：US13948666
申请日：2013-07-23
发明人： Ileana Romeo , Matteo Soriani , Francesco Lenzi
CPC分类号： F02M61/14 , F02M61/168 , F02M2200/858
摘要： A fuel injector may include a central longitudinal axis and may be arranged in a cylinder head of a combustion engine. The fuel injector has an injector body and an adjustment device, the adjustment device including a ring element configured to be arranged in a recess of a cylinder head between the injector body and the cylinder head to align the fuel injector relative to the recess in radial direction. The ring element comprises a magnetic material. A fuel-injection system is also disclosed that includes a cylinder head of an internal combustion engine and a fuel injector as disclosed above.
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公开(公告)号：US09651011B2
公开(公告)日：2017-05-16
申请号：US14398997
申请日：2013-05-07
发明人： Ileana Romeo
IPC分类号： F02M51/06
CPC分类号： F02M51/0632 , F02M51/0685 , F02M2200/306
摘要： A valve assembly for an injection valve includes a valve body having a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity between a closing position preventing a fluid flow through the fluid outlet portion and further positions releasing the fluid flow through the fluid outlet portion, an electro-magnetic actuator unit that actuates the valve needle, and includes an axially movable armature in the cavity and a disc element fixedly coupled to the valve needle and configured to limit the axial movement of the armature relative to the valve needle towards the fluid outlet portion. An armature spring biases the armature away from the disc element for establishing a fluid-filled gap between the armature and the disc element. The armature is axially displaceable towards the disc element against the armature spring bias to reduce an axial size of the gap.
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公开(公告)号：US09341154B2
公开(公告)日：2016-05-17
申请号：US14249724
申请日：2014-04-10
发明人： Ileana Romeo , Matteo Soriani , Francesco Lenzi
CPC分类号： F02M61/1893 , B05B1/3046 , F02M51/061 , F02M61/12 , F02M61/166 , F02M61/18 , F02M61/20 , F02M61/205
摘要： A valve assembly includes a valve body, a movable valve needle, a movable armature, and an elastic member. The armature is axially moveable with respect to the needle so that, when the needle is in the closing position, the armature is movable from a first position further in the second direction to a second position against the bias of the elastic member. The elastic member has a plurality of beams, each beam having a first end and a second end which are axially and radially offset with respect to each other, and the armature is operable to reduce the axial offset between the first end and the second end when moving from the first to the second position.
摘要翻译： 阀组件包括阀体，可动阀针，可移动衔铁和弹性构件。 电枢相对于针可轴向移动，使得当针处于关闭位置时，衔铁可以抵抗弹性构件的偏压从第二位置的第二位置移动到第二位置。 弹性构件具有多个梁，每个梁具有相对于彼此轴向和径向偏移的第一端和第二端，并且电枢可操作以减小第一端和第二端之间的轴向偏移， 从第一个位置移动到第二个位置。
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公开(公告)号：US20150292461A1
公开(公告)日：2015-10-15
申请号：US14249724
申请日：2014-04-10
发明人： Ileana Romeo , Matteo Soriani , Francesco Lenzi
CPC分类号： F02M61/1893 , B05B1/3046 , F02M51/061 , F02M61/12 , F02M61/166 , F02M61/18 , F02M61/20 , F02M61/205
摘要： A valve assembly includes a valve body, a movable valve needle, a movable armature, and an elastic member. The armature is axially moveable with respect to the needle so that, when the needle is in the closing position, the armature is movable from a first position further in the second direction to a second position against the bias of the elastic member. The elastic member has a plurality of beams, each beam having a first end and a second end which are axially and radially offset with respect to each other, and the armature is operable to reduce the axial offset between the first end and the second end when moving from the first to the second position.
摘要翻译： 阀组件包括阀体，可动阀针，可移动衔铁和弹性构件。 电枢相对于针可轴向移动，使得当针处于关闭位置时，衔铁可以抵抗弹性构件的偏压从第二位置的第二位置移动到第二位置。 弹性构件具有多个梁，每个梁具有相对于彼此轴向和径向偏移的第一端和第二端，并且电枢可操作以减小第一端和第二端之间的轴向偏移，当 从第一个位置移动到第二个位置。
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