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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：US20190048842A1
公开(公告)日：2019-02-14
申请号：US15763808
申请日：2016-08-02
摘要： The invention provides an internal combustion engine control device capable of performing a stable combustion at a lean combustion limit. In an internal combustion engine control device that controls an internal combustion engine provided with an ignition device igniting an air-fuel mixture formed inside a combustion chamber, an intake side air temperature of the internal combustion engine is controlled in response to a compression ratio of the combustion chamber.
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公开(公告)号：US20170009621A1
公开(公告)日：2017-01-12
申请号：US15113142
申请日：2015-01-07
CPC分类号： F01M5/005 , F01M5/001 , F02D35/026 , F02D41/0025 , F02D41/003 , F02D41/22 , F02D2041/224 , F02D2200/023 , F02D2200/0611 , F02D2250/08 , F02D2250/11 , H05B1/0236
摘要： An engine control device sets a target value for the engine oil temperature appropriately in an engine that uses gasoline as a fuel, even when the fuel does not have a single boiling point because the gasoline is a mixed composition, or when the fuel property changes (for example, when the vaporization property changes due to deterioration). In other words, the engine control device prevents excessive heating or insufficient heating by changing the oil temperature to the high side in a condition wherein the fuel being used does not easily vaporize, and changing the oil temperature to the low side in a condition wherein the fuel being used easily vaporizes. This engine control device includes an oil temperature controller that controls the temperature of oil lubricating the interior of the engine; a fuel supply device that supplies fuel to the engine; and a detector for detecting the property of the fuel. The temperature of the oil is controlled on the basis of a signal from the detector.
摘要翻译： 发动机控制装置在使用汽油作为燃料的发动机中适当地设定发动机油温的目标值，即使燃料由于汽油是混合组合物而不具有单一沸点，或者燃料特性变化时 例如，当气化性质因劣化而变化时）。 换句话说，发动机控制装置在所使用的燃料不容易汽化的状态下，通过将油温变更为高压来防止过度的加热或不充分的加热，并且在下述情况下将油温变更为低温 使用的燃料容易蒸发。 该发动机控制装置包括油温控制器，其控制润滑发动机内部的油的温度; 向发动机供给燃料的燃料供给装置; 以及用于检测燃料性质的检测器。 基于来自检测器的信号来控制油的温度。
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公开(公告)号：US20210095608A1
公开(公告)日：2021-04-01
申请号：US17051358
申请日：2019-04-22
IPC分类号： F02D41/00 , F02M25/03 , F02M25/022
摘要： Provided is a control device for an internal combustion engine, which can control an injection amount of water injected into each cylinder of the internal combustion engine to a minimum injection amount that allows knock to be suppressed for each cylinder. Therefore, in a control device 1 that controls water supply valves 35 (water supply devices) that supply water into each of combustion chambers of a plurality of cylinders R (cylinders R1 to R3 in the embodiment) of an internal combustion engine 100, the control device 1 includes a water supply amount calculation unit 2 that calculates a supply amount of water supplied to each of the combustion chambers of the plurality of cylinders R1 to R3 for each cylinder, and a water supply control unit 3 that controls the water supply valves 35 based on the supply amount of water calculated by the water supply amount calculation unit 2 for each cylinder.
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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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公开(公告)号：US20170314500A1
公开(公告)日：2017-11-02
申请号：US15520200
申请日：2015-09-16
发明人： Kenichiroh OGATA , Takashi OKAMOTO , Yoshinobu ARIHARA , Kazuhiro ORYOJI , Yoshihiro SUKEGAWA , Yuusuke KIHARA
CPC分类号： F02D41/402 , F02D13/0219 , F02D13/0261 , F02D35/021 , F02D35/023 , F02D35/027 , F02D41/005 , F02D41/006 , F02D41/0072 , F02D41/0077 , F02D41/009 , F02D41/0225 , F02D41/047 , F02D41/18 , F02D41/40 , F02D2041/001 , F02D2041/288 , F02D2200/021 , F02D2200/023 , F02D2200/0414 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02M26/00 , F02M26/14 , F02M26/46 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/44 , Y02T10/47
摘要： The purpose of the present invention is to provide an engine control device with which it is possible to minimize decreases in combustion speed even when the EGR rate has been increased. The present invention is an engine control device for: controlling an engine provided with an injector for injecting fuel directly into a cylinder, an ignition device for igniting the injected fuel, and an EGR means capable of recycling combustion gas and varying the EGR rate of the recycling combustion gas; and commanding the injector to perform multiple injections during one cycle, wherein a command is given to perform a control for increasing the injection quantity per compression stroke relative to the total injection quantity in one cycle so that the injection quantity per compression stroke is greater when the EGR rate is high than when the EGR rate is low, and/or a control for increasing the number of injections per compression stroke relative to the total number of injections in one cycle so that the number of injections per compression stroke is greater when the EGR rate is high than when the EGR rate is low.
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公开(公告)号：US20210285395A1
公开(公告)日：2021-09-16
申请号：US16626643
申请日：2018-07-05
摘要： Provided is a novel internal-combustion engine control device that can accurately determine a combustion state of an air-fuel mixture in a combustion chamber even in a case where operation is switched between a steady operation state and a transient operation state. For this purpose, the internal-combustion engine control device includes a physical quantity detection unit that detects a physical quantity that fluctuates output of the internal-combustion engine, an output fluctuation value calculation unit that calculates an output fluctuation value for each cylinder based on a detection result of the physical quantity detection unit, and a state determination unit that determines a transient operation state or a steady operation state based on a difference or a ratio between a first output fluctuation value of a predetermined first cylinder and a second output fluctuation value of a predetermined second cylinder calculated by the output fluctuation value calculation unit. Since combustion failure determination is performed in a section determined as the steady state, it is possible to accurately determine a combustion failure state of an air-fuel mixture of a cylinder even in a case where operation is switched between the steady operation state and the transient operation state.
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公开(公告)号：US20210293200A1
公开(公告)日：2021-09-23
申请号：US17258352
申请日：2019-08-08
摘要： Emission of unburned hydrocarbons and soot is reduced while ensuring startability (ignitability) in a cold start mode of an internal combustion engine. Thus, fuel is injected with a first injection rate as an injection rate of a fuel injection valve 100 in a warm state in which a temperature of an engine 30 is equal to or higher than a set temperature, and the fuel is injected with a second injection rate lower than the first injection rate as the injection rate of the fuel injection valve 100 in a cold state in which the temperature of the engine 30 is lower than the set temperature at the same fuel pressure as that in the warm state.
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10.发明申请公开(公告)号：US20210102511A1
公开(公告)日：2021-04-08
申请号：US16606992
申请日：2018-04-12
摘要： It is an object of the present invention to provide a novel internal-combustion engine piston which makes it possible to achieve both an improvement in thermal efficiency and a reduction in exhaust harmful components, and to suppress the occurrence of abnormal combustion such as knocking and pre-ignition. A cooling passage is formed in a piston, and on a top face of the piston are provided a first heat shielding layer composed of a material having a lower thermal conductivity and volumetric specific heat than those of a piston base material, and a second heat shielding layer composed of a material having a lower thermal conductivity and volumetric specific heat than those of the first heat shielding layer, wherein a first distance between the first heat shielding layer and the cooling passage is set to be less than a second distance between the second heat shielding layer and the cooling passage. A cooling loss can be reduced by the second heat shielding layer, and the vaporization of fuel adhering to the piston can be promoted by the first heat shielding layer to reduce exhaust gas harmful components. Since the first distance is less than the second distance, the temperature of the first heat shielding layer does not rise excessively, whereby the occurrence of knocking and pre-ignition can be suppressed.
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