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公开(公告)号：US20210190025A1
公开(公告)日：2021-06-24
申请号：US16754824
申请日：2018-11-13
摘要： The conventional penetration control has a problem that the penetrations of all the injection holes change. An object of the invention is to provide a fuel injection valve having a simple structure and capable of selectively controlling a penetration force of spray injected in a piston direction by a lift amount.
In order to solve the above problem, the fuel injection valve of the invention is a fuel injection valve for injecting fuel to a combustion chamber of an internal combustion engine, which includes a valve body that is lifted by any one of a first lift amount of a maximum valve body lift amount and a second lift amount smaller than the first lift amount. In a case where the maximum valve body lift amount of the valve body is the first lift amount, a flow path area of a seat portion is larger than a sum of flow path areas of all injection holes, and in a case where the maximum valve body lift amount of the valve body is the second lift amount, the flow path area of the seat portion is smaller than the sum of flow path areas of all the injection holes.-
公开(公告)号：US20210131372A1
公开(公告)日：2021-05-06
申请号：US16481304
申请日：2018-02-05
发明人： Tomoyuki HOSAKA , Taisuke SUGII , Eiji ISHII , Kazuki YOSHIMURA , Yoshihiro SUKEGAWA , Masayuki SARUWATARI
摘要： An object of the present invention is to provide a control device of an injector capable of suppressing the influence of pressure reduction boiling even if pressure in a combustion chamber is low. In a case where the temperature of fuel injected from a fuel injection valve is within a set high temperature region and the pressure of the combustion chamber is within a set low pressure region, the control device of an in-cylinder direct injection-type injector according to the present invention controls to increase a lift amount of the injector as compared to the case of a low temperature region or a high pressure region.
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公开(公告)号：US20190211763A1
公开(公告)日：2019-07-11
申请号：US16328866
申请日：2017-08-02
CPC分类号： F02D41/06 , F02B2075/125 , F02D41/32 , F02D41/34 , F02D45/00
摘要： Provided is a fuel injection device and a control unit therefor which enable reliable ignition even in a case where fuel pressure is low immediately after starting an engine.In the control unit for controlling an injector injecting fuel into an internal combustion engine, a plurality of injectors is provided in the internal combustion engine, a static flow rate of a first injector is configured to be smaller than a static flow rate of a second injector. In a case where a fuel pressure of fuel supplied by a pressurizing unit is lower than a set value set lower than a fuel pressure in warming up, an injection ratio of the first injector is controlled to increase according to a difference between a fuel pressure of fuel from the pressurizing unit and a fuel pressure in warming up.
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公开(公告)号：US20200049118A1
公开(公告)日：2020-02-13
申请号：US16609256
申请日：2018-04-19
发明人： Takaki ITAYA , Tomoyuki HOSAKA , Noriyuki MAEKAWA , Takao MIYAKE
摘要： An object of the present invention is to provide a fuel injection valve that can be used in a gasoline engine and can take fuel into an injection hole with a small pressure loss near a seat portion on which a valve is seated. Thus, the present invention provides a fuel injection valve for a gasoline engine which includes: a plurality of injection holes; and a seat portion that opens and closes a fuel passage to the plurality of injection holes in cooperation with a valve. At least one fuel injection hole among the plurality of injection holes is configured in a shape such that an injection hole inlet has a long axis and a short axis, and the long axis is directed in a direction in which an extension line intersects with the seat portion.
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公开(公告)号：US20190040814A1
公开(公告)日：2019-02-07
申请号：US16073021
申请日：2016-11-16
发明人： Tomoyuki HOSAKA , Taisuke SUGII , Eiji ISHII , Yoshihiro SUKEGAWA , Masayuki SARUWATARI , Kazuhiro ORYOJI
摘要： A fuel injection valve capable of forming a homogeneous air-fuel mixture in homogeneous combustion at a low engine speed and a control device thereof are provided. According to the present invention, a fluid injection valve that is configured separately from a fuel injection valve and has a function of injecting a fluid is provided and a control device of the fuel injection valve includes a control unit that performs control such that fuel is injected from the fuel injection valve and then controls the fluid injection valve such that the fluid is injected from the fluid injection valve and the fuel injected from the fuel injection valve is stirred.
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公开(公告)号：US20180149127A1
公开(公告)日：2018-05-31
申请号：US15568282
申请日：2016-04-08
发明人： Tomoyuki HOSAKA , Eiji ISHII , Yoshihiro SUKEGAWA , Taisuke SUGII , Kazuki YOSHIMURA , Kazuhiro ORYOJI , Masayuki SARUWATARI
摘要： Provided is a fuel injector that is capable of reducing penetration. The fuel injector of the present invention includes a valve body having a valve body side seat surface, a valve seat side seat surface that abuts on the valve body side seat surface, and an injection hole that is provided downstream of a position at which the valve body side seat surface abuts on the valve seat side seat surface. The valve body has a projection that is formed from the valve body side seat surface toward the injection hole, and the projection is formed to be smaller in a direction of fuel flow between seats than a radius of an upstream opening surface of the injection hole.
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