公开(公告)号：US11703022B2

公开(公告)日：2023-07-18

申请号：US17021635

申请日：2020-09-15

Applicant: HYUNDAI KEFICO CORPORATION

Inventor： Dong-Hyun Kim ,  Hyung-Ik Kim ,  Hyun-Jick Lee

IPC: F02M51/06 ,  F02M61/16 ,  F02M61/10

CPC classification number: F02M51/0671 ,  F02M61/168 ,  F02M61/10 ,  F02M2200/08 ,  F02M2200/9069

Abstract: A fuel injector is configured such that a non-magnetic member constituting a magnetic circuit is deformed by an axial force generated when the non-magnetic member is combined with a cover and a housing, thereby providing airtight contact. The fuel injector is a device that injects fuel into an engine by raising a needle. A magnetic field generated from a coil forms a magnetic circuit when the coil is magnetized, and the magnetic circuit raises the needle. The fuel injector includes a block ring disposed inside the coil, a cover disposed at an upper end of the block ring, and a housing disposed at a lower end of the block ring. The block ring is made of a non-magnetic material and configured to extend the magnetic circuit. When the cover and the housing are combined by being screwed together, the upper end and the lower end of the block ring are deformed to provide airtight contact with respect to the cover and the housing, respectively.

公开(公告)号：US20170082078A1

公开(公告)日：2017-03-23

申请号：US15364846

申请日：2016-11-30

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yoshihito YASUKAWA ,  Hideharu EHARA ,  Tohru ISHIKAWA ,  Motoyuki ABE ,  Ryo KUSAKABE

IPC: F02M51/06 ,  F02M61/20 ,  F02M61/10

CPC classification number: F02M51/0657 ,  F02D41/20 ,  F02M45/00 ,  F02M45/08 ,  F02M51/061 ,  F02M51/0625 ,  F02M51/066 ,  F02M61/04 ,  F02M61/10 ,  F02M61/20 ,  F02M2200/08

Abstract: A fuel injection valve includes a valve body, a coil, an inner fixed iron core that is arranged on an inner peripheral side of the coil, and an outer fixed iron core that is arranged on an outer peripheral side of the coil. The fuel injection valve also includes a movable element that is configured to be attracted to the inner fixed iron core and the outer fixed iron core, wherein the movable element is configured to be separable from the valve body and is configured to move the valve body.

公开(公告)号：US09551309B2

公开(公告)日：2017-01-24

申请号：US14293581

申请日：2014-06-02

Applicant: Continental Automotive GmbH

Inventor： Stefano Filippi ,  Mauro Grandi ,  Francesco Lenzi ,  Valerio Polidori

IPC: F02M51/06 ,  F02M65/00 ,  F02D41/20 ,  F02D41/24

CPC classification number: F02M51/0621 ,  F02D41/20 ,  F02D41/247 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2079 ,  F02D2200/063 ,  F02M51/0617 ,  F02M65/005 ,  F02M2200/08 ,  F02M2200/9053

Abstract: A fluid injector includes a valve body, a valve needle and axially moveable in the valve body between a closing position that prevents a fluid injection and further positions that permit the fluid injection, an armature coupled to the valve needle for displacing the valve needle away from the closing position, and a solenoid assembly including at least a first and second coil and operable to magnetically actuate the armature via an electrical signal. A method for operating the fluid injector includes applying the electrical signal to the first coil to generate a magnetic field to move the armature for displacing the valve needle away from the closing position, evaluating a voltage across terminals of the first coil, and controlling the second coil with a further electrical signal to saturate a magnetic field in a portion of the valve body between the armature and solenoid assembly during evaluating the voltage.

Abstract translation: 流体注射器包括阀体，阀针，并且可在阀体内轴向移动，该阀体在阻止流体注入的关闭位置和允许流体注入的另外位置之间轴向移动;联接到阀针的电枢，用于使阀针移离 所述关闭位置以及包括至少第一和第二线圈并且可操作以经由电信号磁性地驱动所述电枢的螺线管组件。 用于操作流体注射器的方法包括将电信号施加到第一线圈以产生磁场以移动衔铁以使阀针移离闭合位置，评估第一线圈的端子两端的电压，并且控制第二线圈 线圈具有另外的电信号，以在评估电压期间使电枢和螺线管组件之间的阀体的一部分中的磁场饱和。

公开(公告)号：US20150332833A1

公开(公告)日：2015-11-19

申请号：US14714893

申请日：2015-05-18

Applicant: Robert Bosch GmbH

Inventor： Axel BORMANN ,  Thorsten BAUER ,  Juergen GRANER

IPC: H01F7/08 ,  F16K31/08

CPC classification number: H01F7/081 ,  B23P15/001 ,  F01N2610/02 ,  F01N2610/1453 ,  F02M51/0671 ,  F02M61/168 ,  F02M2200/08 ,  F02M2200/8069 ,  F02M2200/8084 ,  F16K31/0675 ,  F16K31/08 ,  H01F7/1607 ,  H01F2007/086 ,  Y10T29/49407

Abstract: A magnetic actuator, which is used particularly for devices of internal combustion engines, includes a magnetic coil and at least one ferromagnetic component. In this instance, a magnetic flux caused by the magnetic coil is able to be guided via the component. On ferromagnetic component, a magnetic choke point is provided, which is used to adjust the magnetic flux. The magnetic choke point may be formed by a local microstructural modification of a ferromagnetic material of the ferromagnetic component. Furthermore, a valve having such a magnetic actuator and a method for producing such a magnetic actuator are indicated.

Abstract translation: 专门用于内燃机装置的磁致动器包括一个磁性线圈和至少一个铁磁部件。 在这种情况下，能够通过该部件引导由该线圈产生的磁通量。 在铁磁元件上，提供了一个磁阻点，用于调节磁通量。 磁阻点可以由铁磁性部件的铁磁材料的局部显微结构修改形成。 此外，示出了具有这种磁致动器的阀和用于制造这种磁致动器的方法。

公开(公告)号：US09068542B2

公开(公告)日：2015-06-30

申请号：US13823893

申请日：2011-07-26

Applicant: Juergen Graner ,  Martin Maier ,  Bernd Rieg ,  Volker Sohm ,  Juergen Lander ,  Takuya Mizobe

Inventor： Juergen Graner ,  Martin Maier ,  Bernd Rieg ,  Volker Sohm ,  Juergen Lander ,  Takuya Mizobe

IPC: F02M51/06 ,  F02M63/00 ,  H01F7/16

CPC classification number: F02M51/0625 ,  F02M51/0682 ,  F02M63/0019 ,  F02M2200/08 ,  F02M2200/9061 ,  H01F7/1607

Abstract: A fuel injector for fuel injection systems of internal combustion engines. The valve includes an electromagnetic actuating element which has a solenoid, a solid core, an external magnetic circuit component, and a movable armature for activating a valve closing member which cooperates with a valve seat surface provided on a valve seat member. The valve has extremely small outer dimensions. By optimizing the dimensions of the electromagnetic circuit, the outer diameter of the external magnetic circuit component in the peripheral area of the solenoid is 10.5 mm

Abstract translation: 一种用于内燃机燃料喷射系统的燃料喷射器。 该阀包括电磁致动元件，该电磁致动元件具有螺线管，固体铁芯，外部磁路部件，以及用于启动与设置在阀座部件上的阀座表面配合的阀关闭部件的活动衔铁。 该阀具有非常小的外形尺寸。 通过优化电磁电路的尺寸，螺线管外围区域的外部磁路部件的外径为10.5mm

公开(公告)号：US09022304B2

公开(公告)日：2015-05-05

申请号：US13914503

申请日：2013-06-10

Applicant: Mazda Motor Corporation

Inventor： Masami Nishida ,  Keiji Gotoh ,  Takao Miyazaki

IPC: F02M51/06 ,  F02M61/10 ,  F02M63/00 ,  F02M61/16 ,  F02M61/18

CPC classification number: F02M61/10 ,  F02M51/0617 ,  F02M51/0671 ,  F02M51/0682 ,  F02M51/0685 ,  F02M61/166 ,  F02M61/1813 ,  F02M61/1853 ,  F02M63/0063 ,  F02M2200/03 ,  F02M2200/08 ,  F02M2200/8061

Abstract: A fuel injection device of a direct injection engine is provided. The device includes an engine body, a fuel injection valve, and a controller for controlling a fuel injection by the fuel injection valve. The fuel injection valve has a nozzle hole, a valve body for opening and closing the nozzle hole, and first and solenoid coils for stroking the valve body by first and second stroke amounts, respectively. The controller performs the fuel injection by the first solenoid coil in an intake stroke period within an engine operating range with an engine load below a predetermined load. The controller performs the fuel injection with a fuel pressure of 40 MPa or above by the second solenoid coil in a period between a compression stroke late stage and an expansion stroke early stage within a low-engine-speed range with an engine speed below a predetermined speed and within a high-engine-load range.

Abstract translation: 提供直喷式发动机的燃料喷射装置。 该装置包括发动机主体，燃料喷射阀和用于控制燃料喷射阀的燃料喷射的控制器。 燃料喷射阀具有喷嘴孔，用于打开和关闭喷嘴孔的阀体，以及分别通过第一和第二冲程量对阀体进行冲程的第一和电磁线圈。 控制器在发动机工作范围内的发动机工作范围内，在发动机负荷低于预定负荷的情况下，通过第一螺线管线圈进行燃料喷射。 控制器在发动机转速低于预定值的低发动机转速范围内，在压缩冲程后期阶段与膨胀冲程早期阶段之间，通过第二螺线管线圈以40MPa以上的燃料压力进行燃料喷射。 在高发动机负载范围内。

公开(公告)号：US20140124602A1

公开(公告)日：2014-05-08

申请号：US14071228

申请日：2013-11-04

Applicant: DENSO CORPORATION

Inventor： Keita IMAI

IPC: F02M51/06

CPC classification number: F02M51/061 ,  F02D41/20 ,  F02D2041/2006 ,  F02D2041/2041 ,  F02D2041/2058 ,  F02D2200/0602 ,  F02M51/0671 ,  F02M2200/08

Abstract: A fuel injection device includes a fuel injector and a control portion. The fuel injector is inserted into an attachment hole which is placed at a predetermined position of a cylinder head. The fuel injector has a housing in which a coil is provided. At least a part of the housing which accumulates the coil is surrounded over the whole circumference by an inner circumference surface of the attachment hole. The control portion has an increasing control portion and a holding control portion. The increasing control portion increases a current flowing through the coil to a first target value. The holding control portion holds the current to the first target value.

Abstract translation: 燃料喷射装置包括燃料喷射器和控制部分。 燃料喷射器插入到安装在气缸盖的预定位置的安装孔中。 燃料喷射器具有其中设置有线圈的壳体。 蓄积线圈的壳体的至少一部分通过安装孔的内周面在整个圆周上被包围。 控制部分具有增加的控制部分和保持控制部分。 增加的控制部分将流过线圈的电流增加到第一目标值。 保持控制部将电流保持为第一目标值。

公开(公告)号：US20130075501A1

公开(公告)日：2013-03-28

申请号：US13544512

申请日：2012-07-09

Applicant: Takao Miyake ,  Ryo Kusakabe ,  Motoyuki Abe ,  Masahiro Soma

Inventor： Takao Miyake ,  Ryo Kusakabe ,  Motoyuki Abe ,  Masahiro Soma

IPC: F02M51/00

CPC classification number: F02M51/0664 ,  F02M51/0671 ,  F02M2200/02 ,  F02M2200/07 ,  F02M2200/08

Abstract: Improving the injection fuel mass accuracy of fuel injector, it is necessary to make the fuel injector perform seat valve opening and closing operation quickly. When the shapes of a fixed core and an anchor are optimized to improve the responsiveness of a magnetic flux, it is necessary to ensure a sufficient fuel path area while preventing adhesion by making the adherence phenomenon rarely occur between an end face of the anchor and an end face of the fixed core. A through hole passes through an anchor forming an armature of an electromagnetic fuel injector from a face of the anchor where the anchor faces a fixed core to a back face where the through hole has a large-diameter portion and a small-diameter portion, and the large-diameter portion is located in an upstream part and is offset to the outer periphery with respect to the small-diameter portion.

Abstract translation: 提高燃油喷射器的喷射燃料质量精度，需要使燃油喷射器快速进行座阀开启和关闭操作。 当固定芯和锚固体的形状被优化以改善磁通量的响应性时，需要确保足够的燃料路径面积，同时通过使锚固件的端面和锚固件的端面之间很少发生粘附现象而防止粘附 固定芯的端面。 通孔穿过形成电磁燃料喷射器的电枢的锚固体，锚固体的面向固定芯的表面到通孔具有大直径部分和小直径部分的背面，并且 大直径部分位于上游部分并且相对于小直径部分偏移到外周边。

公开(公告)号：US08215573B2

公开(公告)日：2012-07-10

申请号：US12779984

申请日：2010-05-14

Applicant: Michael J. Hornby

Inventor： Michael J. Hornby

IPC: F02M51/06 ,  F02M51/00 ,  F16K31/02

CPC classification number: F02M51/0685 ,  F02M51/0671 ,  F02M61/188 ,  F02M61/1886 ,  F02M2200/08 ,  F02M2200/304 ,  F02M2200/306 ,  Y10S239/90

Abstract: A direct fuel injector (10) includes a body (12) having a passage between inlet and outlet ends. A seat (16) is at the outlet end and a closure member (28) is associated with the seat. A needle member (30) is associated with the closure member and is movable with respect to a pole piece (35) between a first, closed position and a second, open position. A spring (42) biases the needle member to the first position. An armature (32) is free-floating with respect to the needle member. An intermediate pole structure (38) is coupled with the needle member and is disposed between the pole piece and the armature and is decoupled there-from. An armature stop (40) is coupled to the needle member and is spaced from the intermediate pole structure. An electromagnetic coil (46) is associated with the pole piece, intermediate pole structure and armature. The injector reduces bounce of the needle assembly.

Abstract translation: 直接燃料喷射器（10）包括具有在入口端和出口端之间的通道的本体（12）。 座（16）位于出口端，封闭构件（28）与座相关联。 针构件（30）与闭合构件相关联并且可相对于在第一闭合位置和第二打开位置之间的极片（35）移动。 弹簧（42）将针构件偏压到第一位置。 电枢（32）相对于针构件自由浮动。 中间杆结构（38）与针构件联接并且设置在极靴和衔铁之间并且在其之间脱开。 电枢止动器（40）联接到针构件并与中间杆结构间隔开。 电磁线圈（46）与极片，中间极结构和电枢相关联。 喷射器减少针组件的反弹。

公开(公告)号：US07942381B2

公开(公告)日：2011-05-17

申请号：US12053043

申请日：2008-03-21

Applicant: Kouichi Sugiyama ,  Kazunari Kuroiwa

Inventor： Kouichi Sugiyama ,  Kazunari Kuroiwa

IPC: F16K31/02

CPC classification number: F16K31/0675 ,  F02M51/0685 ,  F02M61/042 ,  F02M63/0015 ,  F02M2200/08 ,  F02M2200/9069 ,  H01F7/081

Abstract: A solenoid valve includes a movable core, a magnetic opposed portion opposed to the movable core, a nonmagnetic cylindrical portion, a first magnetic cylindrical portion axially close to the movable core, and a second magnetic cylindrical portion located radially outside of the magnetic opposed portion. The nonmagnetic cylindrical portion surrounds radially outside of a gap between the magnetic opposed portion and the movable core. A coil is provided radially outside of the nonmagnetic cylindrical portion. A thickness t of the nonmagnetic cylindrical portion, a cross-sectional area S1 of the magnetic opposed portion, and a total cross-sectional area S2 of both the magnetic opposed portion and the second magnetic cylindrical portion having the thickness t satisfy the relationships of t≦0.6 mm and 0.55≦(S1/S2).

Abstract translation: 电磁阀包括可动铁芯，与可动铁芯相对的磁性相对部分，非磁性圆柱形部分，轴向靠近可动铁芯的第一磁性圆柱形部分和位于磁性相对部分径向外侧的第二磁性圆柱形部分。 非磁性圆柱形部分围绕磁性相对部分和可动芯之间的间隙的径向外侧。 线圈设置在非磁性圆柱形部分的径向外侧。 非磁性圆筒部的厚度t，磁性相对部分的横截面面积S1和具有厚度t的磁性相对部分和第二磁性圆筒部分的总横截面积S2满足t＆nlE的关系 ; 0.6mm和0.55＆nlE;（S1 / S2）。