-
公开(公告)号：US10240567B2
公开(公告)日：2019-03-26
申请号：US15640838
申请日：2017-07-03
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihito Yasukawa , Hideharu Ehara , Tohru Ishikawa , Motoyuki Abe , Ryo Kusakabe
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：US09528481B2
公开(公告)日：2016-12-27
申请号：US14819037
申请日：2015-08-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihito Yasukawa , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Eiji Ishii
CPC classification number: F02M51/061 , F02M61/162 , F02M61/1806 , F02M61/1813 , F02M61/182 , F02M61/1833
Abstract: Fuel injection valve with conical valve seat surface that abuts a valve body to seal fuel, fuel injection orifices having an inlet opening formed on the valve seat surface, wherein fuel sprays injected from the plurality of fuel injection orifices include a first fuel spray constituted by a fuel spray injected from at least one fuel injection orifice and a second fuel spray constituted by a plurality of fuel sprays injected at an outer periphery of the first fuel spray, and a fuel injection orifice that injects the first fuel spray constituted with a plane that includes an orifice axis connecting a center of an inlet with a center of an outlet of the fuel injection orifice, parallel to a center axis of the fuel injection valve intersecting a plane, a conical apex that forms the valve seat surface to form an inclination angle that is larger than 0°.
-
公开(公告)号：US10900435B2
公开(公告)日：2021-01-26
申请号：US16366168
申请日：2019-03-27
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Takuya Mayuzumi , Kenji Hiraku
Abstract: In a drive unit of a fuel injection device, an electric current is supplied to the fuel injection device by applying a high voltage to the fuel injection device from a high voltage source whose voltage is boosted to a voltage higher than a battery voltage at the time of opening a valve of the fuel injection device. Thereafter, the electric current supplied to the fuel injection device is lowered to a current value at which a valve element cannot be held in a valve open state by stopping the applying of the high voltage from the high voltage source. Thereafter, in a stage where a supply current is switched to a hold current, another high voltage is applied to the fuel injection device from the high voltage source.
-
公开(公告)号：US09541046B2
公开(公告)日：2017-01-10
申请号：US14763029
申请日：2014-01-10
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihito Yasukawa , Hideharu Ehara , Tohru Ishikawa , Motoyuki Abe , Ryo Kusakabe
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 having a variable stroke mechanism is constructed. A valve body provided to be slidable; a first movable element for cooperating with the valve body; an inner fixed iron core provided at a position to oppose a second movable element; an outer fixed iron core; and a coil are included. A lift amount of the second movable element is set larger than a lift amount of the first movable element, and a portion of the second movable element is projected into the first movable element. In this way, large and small lifts are constituted by using a difference between magnetic attractive forces that are generated in the first movable element and the second movable element by a current supplied to the coil.
Abstract translation: 具有可变冲程机构的燃料喷射阀构成。 设置为可滑动的阀体; 用于与阀体配合的第一可移动元件; 内固定铁芯，设置在与第二可移动元件相对的位置; 外固定铁芯; 并包括线圈。 第二可移动元件的提升量被设定为大于第一可移动元件的提升量，并且第二可移动元件的一部分突出到第一可移动元件中。 以这种方式，通过使用通过提供给线圈的电流在第一可移动元件和第二可移动元件中产生的吸引力之间的差异来构成大而小的电梯。
-
公开(公告)号：US09534573B2
公开(公告)日：2017-01-03
申请号：US14765455
申请日：2014-01-24
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Kiyotaka Ogura , Hideharu Ehara , Motoyuki Abe , Eiji Ishii , Masanori Mifuji , Atsushi Takaoku , Takao Miyake
CPC classification number: F02M61/162 , F02M51/0664 , F02M51/0671
Abstract: An object of the invention is to provide a fuel injection valve that applies a swirl to an upstream side of a seat section to shorten spray penetration.When flows into injection hole entries are indicated by arrows 101a to 106a and injection hole exit directions are indicated by arrows 201 to 206, an angle α defined by the inflow direction 101a and the exit direction 201 of an injection hole 71 can be increased. In a method for applying the twisted angle α, a side groove 15a on an outer peripheral side of a guide member 12a is set to be accompanied with a twist with respect to an axis O1. Furthermore, a flow passage area of the side groove 15a is set smaller than a flow passage area on an upstream side of the guide member 12a and is also set larger than a flow passage area of a seat section 7B that is constructed by a gap between a valve body 7 and an orifice cup 7.
Abstract translation: 当流入喷射孔入口时，箭头101a至106a表示出喷射孔出射方向，箭头201至206表示喷射孔71的流入方向101a和出射方向201所限定的角度α。 在施加扭转角α的方法中，引导构件12a的外周侧上的侧槽15a被设定为相对于轴线O1而扭转。 此外，侧槽15a的流路面积被设定为小于引导构件12a的上游侧的流路面积，并且也设定为大于由座部7B的流路面积构成的座部7B的流路面积， 阀体7和孔口杯7。
-
Patent Agency Ranking
公开(公告)号：US20150267665A1
公开(公告)日：2015-09-24
申请号：US14416693
申请日：2013-06-19
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Motoyuki Abe , Ryo Kusakabe , Hideharu Ehara , Yoshihito Yasukawa
CPC classification number: F02M51/0675 , F02M51/0685 , F02M61/12 , F02M61/20
Abstract: Provided is an electromagnetic fuel injection valve in which in both operations of opening and closing a valve, a movable element is made to free run before a valve element starts to operate, and bounding motion of the movable element occurring at the time of the valve opening operation is reduced, thereby balancing improvement of responsiveness and improvement of stability of operation. There are equipped with: a first movable element 105, which is biased by a first spring 106 biasing in a valve closing direction, as a movable element which opens and closes a valve when being attracted by a magnetic core 109 of the electromagnetic fuel injection valve; and a second movable element 104 biased toward the magnetic core 109 by a second spring 112 biasing in a valve opening direction.
Abstract translation: 提供了一种电磁燃料喷射阀，其中在打开和关闭阀的两个操作中，在阀元件开始运行之前使可动元件自由运动，并且在阀开启时发生可动元件的边界运动 操作减少，从而平衡响应性的提高和操作稳定性的提高。 配备有：第一可动元件105，其被以关闭方向偏置的第一弹簧106偏压作为当被电磁燃料喷射阀的磁芯109吸引时打开和关闭阀的可动元件 ; 以及通过沿阀打开方向偏压的第二弹簧112朝向磁芯109偏压的第二可移动元件104。
-
公开(公告)号：US20140367498A1
公开(公告)日：2014-12-18
申请号：US14374782
申请日：2013-01-16
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Atsushi Takaoku , Yasuo Namaizawa , Hideharu Ehara , Masahiro Soma
CPC classification number: F02M63/0071 , F02M51/061 , F02M51/0671 , F02M61/168 , F02M61/18 , F02M61/1813 , F02M2200/8084 , F02M2200/8092
Abstract: A fuel injection valve is provided that can reduce variations in stroke length by reducing distortion during welding, and consequently can reduce variations in flow rate of injected fuel. The fuel injection valve has a nozzle; a fixed valve that is press-fit into a tip of the nozzle and has a fuel injection port from which the fuel is injected; and a movable element that forms a fuel seal section by abutting against the fixed valve, and opens and closes the fuel injection port. The fixed valve and the nozzle are fixed in place by welding at a position with no space due to press-fitting. A groove that serves as an empty space is provided in a continuation of a welded section that is formed in the fixed valve and the nozzle by the welding.
Abstract translation: 提供一种燃料喷射阀，其可以通过减少焊接过程中的变形而减小行程长度的变化，从而可以减少喷射燃料的流量变化。 燃料喷射阀具有喷嘴; 固定阀，其压配合到喷嘴的尖端中，并具有喷射燃料的燃料喷射口; 以及通过抵靠固定阀形成燃料密封部的可动元件，并且打开和关闭燃料喷射口。 固定阀和喷嘴通过在没有空间的位置通过焊接固定就位。 在通过焊接形成在固定阀和喷嘴中的焊接部的延续部中设置有用作空白的槽。
-
公开(公告)号：US09765740B2
公开(公告)日：2017-09-19
申请号：US14374782
申请日：2013-01-16
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Atsushi Takaoku , Yasuo Namaizawa , Hideharu Ehara , Masahiro Soma
CPC classification number: F02M63/0071 , F02M51/061 , F02M51/0671 , F02M61/168 , F02M61/18 , F02M61/1813 , F02M2200/8084 , F02M2200/8092
Abstract: A fuel injection valve is provided that can reduce variations in stroke length by reducing distortion during welding, and consequently can reduce variations in flow rate of injected fuel. The fuel injection valve has a nozzle; a fixed valve that is press-fit into a tip of the nozzle and has a fuel injection port from which the fuel is injected; and a movable element that forms a fuel seal section by abutting against the fixed valve, and opens and closes the fuel injection port. The fixed valve and the nozzle are fixed in place by welding at a position with no space due to press-fitting. A groove that serves as an empty space is provided in a continuation of a welded section that is formed in the fixed valve and the nozzle by the welding.
-
公开(公告)号：US09714626B2
公开(公告)日：2017-07-25
申请号：US14766253
申请日：2014-01-24
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Ayumu Hatanaka , Ryo Kusakabe , Motoyuki Abe , Toshihiro Aono , Teppei Hirotsu , Hideyuki Sakamoto , Takao Fukuda , Hideharu Ehara , Masahiro Toyohara , Akira Nishioka , Toshio Hori , Kiyoshi Aiki
IPC: F02M51/06 , F02D41/20 , F02D41/34 , F02M51/00 , F02M61/10 , F16K31/06 , F02D41/40 , F02D41/30 , F02M63/00
CPC classification number: F02D41/401 , F02D41/20 , F02D41/3011 , F02D2041/2006 , F02D2041/2055 , F02D2041/2058 , F02M51/061 , F02M63/0017
Abstract: An object of this disclosure is to provide a fuel injection device that can reliably detect an operation timing of a valve body, that is, a valve opening timing with high accuracy. The current of an electromagnetic valve reaches I2 at time t3, an FET 201 and an FET 221 are turned on, and a battery voltage VB is applied to the electromagnetic valve until time t5 is reached. The amount of displacement of the valve body reaches a target amount of control lift at time t4 between time t3 and time t5, that is, a movable core 304 comes into contact with a fixed core 301. The detection of the valve opening timing is performed during the period from time t3 to time t5.
-
公开(公告)号：US09528482B2
公开(公告)日：2016-12-27
申请号：US14416693
申请日：2013-06-19
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Motoyuki Abe , Ryo Kusakabe , Hideharu Ehara , Yoshihito Yasukawa
CPC classification number: F02M51/0675 , F02M51/0685 , F02M61/12 , F02M61/20
Abstract: Provided is an electromagnetic fuel injection valve in which in both operations of opening and closing a valve, a movable element is made to free run before a valve element starts to operate, and bounding motion of the movable element occurring at the time of the valve opening operation is reduced, thereby balancing improvement of responsiveness and improvement of stability of operation. There are equipped with: a first movable element 105, which is biased by a first spring 106 biasing in a valve closing direction, as a movable element which opens and closes a valve when being attracted by a magnetic core 109 of the electromagnetic fuel injection valve; and a second movable element 104 biased toward the magnetic core 109 by a second spring 112 biasing in a valve opening direction.
Abstract translation: 提供了一种电磁燃料喷射阀，其中在打开和关闭阀的两个操作中，在阀元件开始运行之前使可动元件自由运动，并且在阀开启时发生可动元件的边界运动 操作减少，从而平衡响应性的提高和操作稳定性的提高。 配备有：第一可动元件105，其被以关闭方向偏置的第一弹簧106偏压作为当被电磁燃料喷射阀的磁芯109吸引时打开和关闭阀的可动元件 ; 以及通过沿阀打开方向偏压的第二弹簧112朝向磁芯109偏压的第二可移动元件104。
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.095 seconds)
