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公开(公告)号：US12065995B2
公开(公告)日：2024-08-20
申请号：US18281013
申请日：2022-02-02
申请人： Hitachi Astemo, Ltd.
发明人： Takatoshi Iizuka , Takao Miyake , Masashi Sugaya
CPC分类号： F02M61/12 , F02M45/08 , F02M45/083 , F02M61/1806
摘要： A fuel injection device includes a nozzle holder; a fixed core; an anchor; and a valve member. The valve member has a plunger rod and a spacer. The plunger rod is provided with a shaft portion, and an engaging portion that engages with the anchor during a valve opening operation. The spacer has an accommodating portion in which the engaging portion is accommodated and forms a predetermined gap between the engaging portion and the anchor when the valve is closed. Further, the accommodating portion and the engaging portion are in line contact or point contact.
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2.发明授权公开(公告)号：US10072623B2
公开(公告)日：2018-09-11
申请号：US14436806
申请日：2013-09-24
申请人： Robert Bosch GmbH
CPC分类号： F02M61/12 , F02M61/14 , F02M2200/09 , F02M2200/26 , F02M2200/8023
摘要： A decoupling element, for decoupling a fuel injection valve from a cylinder head, includes a body that, in the mounted state, surrounds a housing of the fuel injection valve. The body is fashioned to include a cylinder-side support region to be supported on the cylinder head, and a valve-side support region for supporting the fuel injection valve. When the fuel injection valve is supported at the valve-side support region, the body is loaded with pressure. Only the cylinder-side support region of the body is fashioned in the shape of a closed ring, which connects segments of the body distributed around a circumference. The decoupling element enables the reduction of the transmission of noise from the fuel injection valve to the cylinder head.
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公开(公告)号：US09995261B2
公开(公告)日：2018-06-12
申请号：US14689307
申请日：2015-04-17
申请人： Caterpillar Inc.
发明人： Hoisan Kim
CPC分类号： F02M43/04 , F02D19/0694 , F02D19/10 , F02M61/12 , F02M2200/16 , F02M2200/44 , Y02T10/36
摘要： A fuel injector includes an injector body defining a liquid fuel passage, a gaseous fuel passage, and a first guide bore; a gaseous fuel check guided within the first guide bore between a retracted position and an advanced position to selectively open and block, respectively, fluid communication between the gaseous fuel passage and a gaseous fuel nozzle outlet; and a sleeve seal seated within the first guide bore, the sleeve seal having an inner surface defining a sleeve seal bore therethrough, and at least a portion of the gaseous fuel check is disposed within the sleeve seal bore; an outer surface of the sleeve seal including a first portion and a second portion, the first portion being disposed closer to a longitudinal axis of the sleeve seal bore along a radial direction than the second portion.
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公开(公告)号：US20180051666A1
公开(公告)日：2018-02-22
申请号：US15240045
申请日：2016-08-18
申请人： Robert Bosch GmbH
发明人： Joel Oudart , Eric Doran
IPC分类号： F02M61/10
CPC分类号： F02M61/10 , F02M61/12 , F02M61/1886 , F02M2200/29
摘要： A rotary needle fuel injector having a housing including a wall having a plurality of non-circular apertures extending through the wall and a rotatable rod inside the housing and having a bore through which fuel is supplied. The rotatable rod has a plurality of apertures communicating with the bore and in selective communication with the non-circular apertures in the housing wall. The non-circular apertures also include an axis of symmetry extending along a direction of rotation of the rotatable rod and an axis of asymmetry perpendicular to the axis of symmetry.
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公开(公告)号：US09822748B2
公开(公告)日：2017-11-21
申请号：US14292860
申请日：2014-05-31
申请人： CUMMINS INC.
发明人： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijaygandeeban Subbaihaannadurai , Deepak Sahini
CPC分类号： F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
摘要： An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
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公开(公告)号：US09795973B2
公开(公告)日：2017-10-24
申请号：US14419206
申请日：2013-09-26
发明人： Xunping Yuan , Zhiqiang Tang
CPC分类号： B05B1/02 , B05B1/3046 , B05B7/0408 , B05B7/06 , F02M51/0678 , F02M61/042 , F02M61/12 , F02M61/163
摘要： A needle for a jet device includes a needle body and a tapered part arranged at the end of the needle body, in which the needle body is circumferentially provided with supporting bodies, so that when the needle is assembled in a nozzle of the jet device, the outer surfaces of the supporting bodies are coordinated with an inner chamber of the nozzle to limit the position of the needle body and form fluid channels among the supporting bodies, thereby to effectively prevent the needle from deviating from the spout of the nozzle or from radially swinging.
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公开(公告)号：US09599083B2
公开(公告)日：2017-03-21
申请号：US14765489
申请日：2014-01-24
发明人： Eiji Ishii , Motoyuki Abe , Yoshihito Yasukawa , Kiyotaka Ogura , Hideharu Ehara , Tohru Ishikawa
CPC分类号： F02M63/0077 , F02M51/0671 , F02M61/12 , F02M61/1813 , F02M61/1833 , F02M61/184 , F02M61/1846 , F02M61/1873 , F02M61/188 , F02M63/0078
摘要： In a fuel injection valve used in an internal combustion engine, fuel spray travel distance is shortened.There is provided a fuel injection valve including a seat member, in which the seat member includes a conical seat surface that seats fuel by coming in contact with a valve body, and inlet opening portions of a plurality of fuel injection holes on the conical seat surface, and is configured such that an axis of the injection hole connecting the centers of an inlet and an outlet of the fuel injection hole is along a plurality of different conical surfaces, and in which, in an outlet section that is configured of a plane parallel to an inlet section of the inlet opening portion of the fuel injection hole and is positioned at the outlet of the fuel injection hole, the seat member includes the injection hole in which a major axis direction of an ellipse of the outlet section has an inclination angle of greater than 0 degrees with respect to a straight line in a fuel injection direction, which is obtained by projecting the axis of the injection hole on the outlet section, and an inclination angle of a degree before being perpendicular to the straight line in the fuel injection direction.
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公开(公告)号：US20170067430A1
公开(公告)日：2017-03-09
申请号：US15355380
申请日：2016-11-18
发明人： Motoyuki ABE , Ryo KUSAKABE , Hideharu EHARA , Yoshihito YASUKAWA
CPC分类号： F02M51/0675 , F02M51/0685 , F02M61/12 , F02M61/20
摘要： An electromagnetic fuel injection valve includes a valve element, a movable element, a magnetic core, and a coil. The movable element includes an inner movable element that faces a radially inner part of the magnetic attractive surface of the magnetic core in a moving direction of the valve element. The inner movable element is biased in a valve closing direction by a first spring. The movable element also includes an outer movable element that faces a radially outer part of the magnetic attractive surface of the magnetic core in the moving direction of the valve element. The outer movable element biased in a valve opening direction by a second spring.
摘要翻译： 电磁燃料喷射阀包括阀元件，可动元件，磁芯和线圈。 可动元件包括在阀元件的移动方向上面向磁芯的吸引磁性表面的径向内部的内部可移动元件。 内部可移动元件通过第一弹簧以关闭方向偏置。 可移动元件还包括外部可移动元件，该外部可移动元件在阀元件的移动方向上面对磁芯的吸引磁性表面的径向外部。 外部可动元件通过第二弹簧以阀打开方向偏压。
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公开(公告)号：US09574535B2
公开(公告)日：2017-02-21
申请号：US14434196
申请日：2013-10-03
申请人： Tatsuo Kobayashi
发明人： Tatsuo Kobayashi
IPC分类号： F02M61/00 , F02M61/08 , F02M51/06 , F02M61/18 , B05B1/34 , B05B1/26 , F02M61/06 , F02M61/12 , F02M61/16
CPC分类号： F02M61/08 , B05B1/26 , B05B1/265 , B05B1/3405 , F02M51/061 , F02M61/06 , F02M61/12 , F02M61/163 , F02M61/1806
摘要： A fuel injection valve includes: a needle valve including a seat portion on a tip side thereof; a nozzle body including a seat surface on which the seat portion is placed, and a swirl stabilization chamber on a downstream side of the seat surface, the nozzle body having an injection hole formed so as to have an inlet in the swirl stabilization chamber; a swirl flow generating portion having swirl grooves configured to give a swirling component to fuel to be introduced into the swirl stabilization chamber; and a fuel collision portion provided in a tip portion of the needle valve, the fuel collision portion being configured such that, in a state where the needle valve is opened, the fuel collision portion intersects with a virtual surface extended toward the injection hole from the seat surface included in the nozzle body. This allows dead fuel to be retained in the swirl stabilization chamber and to be introduced into the injection hole in a state where a swirling component has been given to the dead fuel from fuel having the swirling component.
摘要翻译： 一种燃料喷射阀，包括：针阀，包括在其顶端侧的座部; 一个喷嘴体，其包括一个座位表面，座位部分放置在该座面上;一个旋流稳定室，位于该座表面的下游侧，该喷嘴主体具有形成为在该旋流稳定室中具有入口的喷射孔; 涡旋流产生部分具有涡旋槽，其构造成给涡流稳定室中引入燃料的旋动分量; 以及设置在针阀的前端部的燃料碰撞部，所述燃料碰撞部构成为，在所述针阀打开的状态下，所述燃料碰撞部与从所述喷射孔延伸的虚拟表面相交， 包括在喷嘴体内的座面。 这允许死燃料被保持在旋流稳定室中并且在从具有旋动分量的燃料向已停止的燃料提供旋转部件的状态下被引入到喷射孔中。
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公开(公告)号：US09518542B2
公开(公告)日：2016-12-13
申请号：US14426433
申请日：2013-07-22
申请人： Robert Bosch GmbH
发明人： Philipp Rogler , Martin Scheffel
CPC分类号： F02M51/0675 , F02M51/061 , F02M51/066 , F02M51/0685 , F02M61/12
摘要： An injection valve is provided for injecting a medium, especially for injecting fuel into a combustion chamber, including: a housing having at least one spray orifice on a discharge side, a solenoid coil, a magneto armature, which is linearly movable by the solenoid coil, a linearly movable valve needle for opening and closing the spray orifice, a first stop on a side of the magneto armature facing away from the discharge side, and a second stop on a side of the magneto armature facing the discharge side, the magneto armature being linearly movable between the first stop and the second stop with respect to the valve needle, and a guide element which is joined to the valve needle, an outer area of the guide element serving as guide for the linear motion of the magneto armature, and the second stop being an integral part of the guide element.
摘要翻译： 一种喷射阀，用于喷射介质，特别是用于将燃料喷射到燃烧室中，包括：壳体，其具有在排放侧的至少一个喷射孔，螺线管线圈，磁电枢，其可由螺线管线圈 ，用于打开和关闭喷射孔的可直线运动的阀针，位于远离排出侧的磁电枢侧的第一挡块和面向排出侧的磁电枢侧的第二挡块，磁电枢 可相对于阀针在第一止动件和第二止动件之间线性移动;以及导向元件，其连接到阀针，引导元件的外部区域用作磁电枢线性运动的引导件，以及 第二个停止位置是引导元件的组成部分。
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