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公开(公告)号：US20210140388A1
公开(公告)日：2021-05-13
申请号：US16617375
申请日：2018-05-11
IPC分类号： F02D41/40
摘要： Combustion stability can be improved while HC and PN discharged from a combustion chamber are prevented. In an ECU that controls a fuel injection device installed in a combustion chamber of an internal-combustion engine so as to be able to inject fuel in a direction intersecting with a sliding direction of a piston, a pressure value of the fuel supplied to the fuel injection device is acquired, control is performed such that the fuel injection device injects the fuel at least twice in a compression stroke, and control is performed such that fuel injection timing of at least one time in the compression stroke is advanced earlier than fuel injection timing of a time corresponding to the high pressure value of the fuel when the acquired fuel pressure value is low.
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公开(公告)号：US20190218987A1
公开(公告)日：2019-07-18
申请号：US16366168
申请日：2019-03-27
发明人： Ryo KUSAKABE , Motoyuki ABE , Hideharu EHARA , Tohru ISHIKAWA , Takuya MAYUZUMI , Kenji HIRAKU
CPC分类号： F02D41/20 , F02D41/3005 , F02D2041/2003 , F02D2041/2013 , F02D2041/2037 , F02D2041/2051 , F02M51/061 , F02M69/04
摘要： 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.
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公开(公告)号：US20180209366A1
公开(公告)日：2018-07-26
申请号：US15891909
申请日：2018-02-08
发明人： Ryo KUSAKABE , Motoyuki ABE , Ayumu HATANAKA , Toshihiro AONO , Teppei HIROTSU , Hideyuki SAKAMOTO , Masahiro TOYOHARA , Osamu MUKAIHARA , Takao FUKUDA , Yoshihito YASUKAWA , Akiyasu MIYAMOTO
CPC分类号： F02D41/20 , F02D41/0085 , F02D2041/2003 , F02D2041/2037 , F02D2041/2055 , F02D2041/2058 , F02D2200/063 , F02M51/0685 , F02M61/1833 , F02M65/005
摘要： A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that close a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder a housing and a needle and when a current is supplied to the solenoid a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.
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公开(公告)号：US20200182210A1
公开(公告)日：2020-06-11
申请号：US16622389
申请日：2018-05-22
摘要： An object of the present invention is to provide a high-pressure fuel supply pump having a structure capable of adjusting the moving speed of an anchor. Therefore, the high-pressure fuel supply pump of the present invention is provided with a protrusion that protrudes toward an anchor side on a fixed core facing surface of a fixed core. The protrusion is configured in such a manner that a minimum distance between the protrusion and an anchor facing surface is smaller than an axial gap dimension configured between the fixed core facing surface and the anchor facing surface in a direction along a central axis in a state where the anchor is stationary at the time of non-energization.
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公开(公告)号：US20190063387A1
公开(公告)日：2019-02-28
申请号：US16169598
申请日：2018-10-24
摘要： 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.
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公开(公告)号：US20180135579A1
公开(公告)日：2018-05-17
申请号：US15736464
申请日：2016-06-03
发明人： Ryo KUSAKABE , Kenichiro TOKUO , Satoshi USUI , Minoru HASHIDA , Masayuki SUGANAMI , Atsushi HOHKITA , Eiichi KUBOTA , Daisuke KITAJIMA , Hiroshi HORIE
摘要： Responsiveness of an electromagnetic flow-rate control valve provided for closing a suction valve is improved and a discharge flow rate is controlled to a desired value. A flow-rate control valve includes a fixed core arranged on an inner circumferential side of a coil, a yoke arranged on an outer circumferential side of the coil, and a cover portion opposed to the coil in an axial direction, in which the fixed core has an enlarged portion in contact with the cover portion in the axial direction and enlarging toward the coil, and the cover portion is regulated in the axial direction only by a contact portion with the fixed core.
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公开(公告)号：US20210363937A1
公开(公告)日：2021-11-25
申请号：US17057272
申请日：2019-02-13
摘要： In an internal combustion engine, combustion stability is improved while exhaust gas emission is suppressed. For this purpose, a control device (1) for controlling an injector (103) is configured to include a control unit (21) that controls the injector (103) to perform a first fuel injection (1001) for injecting fuel at a first fuel pressure from the injector (103) in an intake stroke (S1) in one combustion cycle of an internal combustion engine (100) and a second fuel injection (1002) for injecting fuel at a second fuel pressure higher than the first fuel pressure from the injector (103) after the first fuel injection (1001) in the same one combustion cycle in the intake stroke (S1).
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公开(公告)号：US20210310452A1
公开(公告)日：2021-10-07
申请号：US17352665
申请日：2021-06-21
发明人： Ryo KUSAKABE , Motoyuki ABE , Tohru ISHIKAWA , Noriyuki MAEKAWA , Masahiro SOMA , Takao MIYAKE , Yasuo NAMAIZAWA
摘要： In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.
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公开(公告)号：US20190040790A1
公开(公告)日：2019-02-07
申请号：US16075027
申请日：2017-01-10
发明人： Ryo KUSAKABE , Takuya WATAI , Shirou YAMAOKA , Kiyotaka OGURA
摘要： An object of the present invention is to provide a fuel injection device in which fuel sprays hardly adhere to an intake valve, a wall surface in an engine cylinder, or a piston.In a fuel injection device including a valve body 114 and a seat surface 601 to perform injection and sealing of fuel cooperatively and a plurality of injection holes 501 and 502 of which inlet opening surfaces are formed on the seat surface 601, a first injection hole 501 and a second injection hole 501 and 502 arranged closest to the first injection hole 501, which configure the plurality of injection holes 501 and 502, are configured such that the first injection hole 501 is larger than the second injection hole 502 in an injection hole angle to be an angle formed by a normal direction 601a of the seat surface 601 and a center axis 119a of the injection hole (θ1>θ2) and the second injection hole 502 is larger than the first injection hole 501 in an area of a cross-section perpendicular to the center axis 119a of the injection hole (injection hole diameter Da2>injection hole diameter Da1).
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公开(公告)号：US20180306137A1
公开(公告)日：2018-10-25
申请号：US15769280
申请日：2016-10-13
发明人： Shirou YAMAOKA , Ryo KUSAKABE , Kiyotaka OGURA
摘要： In view of the foregoing issues, an object of the present invention is to provide a vehicle control device that reduces the constraints of heat generation and charging time of a booster circuit, and decreases favorably the fuel consumption and exhaust emission of an engine. A vehicle control device installed in a vehicle, the device includes: a battery; a high-voltage battery that has a voltage higher than a voltage of the battery; and a fuel injection device that injects fuel into an internal combustion engine, wherein the vehicle control device includes a control unit that determines whether to supply a drive current to the fuel injection device by the battery or supply a drive current to the fuel injection device by the high-voltage battery, and controls the fuel injection device.
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