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公开(公告)号：US20180223754A1
公开(公告)日：2018-08-09
申请号：US15940071
申请日：2018-03-29
发明人： Hong Zhang
CPC分类号： F02D41/0085 , F02B23/104 , F02B43/02 , F02D19/024 , F02D41/0002 , F02D41/0027 , F02D41/401 , F02D41/402 , F02D2041/389 , F02D2200/04 , F02D2200/1002 , F02D2200/1004 , F02M21/0275 , Y02T10/32 , Y02T10/42 , Y02T10/44
摘要： A method is disclosed for injecting a gaseous fuel in an internal combustion engine having a combustion chamber and an inlet valve assigned to the combustion chamber. The method includes determining a torque output of the combustion chamber, specifying a comparative value for the torque output, and determining a difference between the torque output and the comparative value. When the difference is less than a given threshold value, the method reduces a first injection quantity of the gaseous fuel depending on the determined difference, which is injected temporally before the inlet valve is closed. When the difference is greater than the given threshold value, the method increases the first injection quantity of the gaseous fuel depending on the determined difference. Also described is a device which may carry out the method.
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公开(公告)号：US09976491B2
公开(公告)日：2018-05-22
申请号：US14916638
申请日：2014-08-29
发明人： Sachio Mori , Koshiro Kimura , Satoshi Tsuda
IPC分类号： F02B31/00 , F02D9/02 , F02B23/10 , F02B31/08 , F01L3/06 , F02B31/06 , F02D41/00 , F02P13/00 , F01L13/00 , F01L1/053 , F01L9/04
CPC分类号： F02D9/02 , F01L3/06 , F01L13/0015 , F01L2001/0537 , F01L2009/0411 , F02B23/104 , F02B31/06 , F02B31/085 , F02B2023/106 , F02B2275/48 , F02D41/0002 , F02D2009/023 , F02D2041/001 , F02P13/00 , Y02T10/125 , Y02T10/146
摘要： Provided is an internal combustion engine including a sparkplug disposed in the vicinity of the center portion of an upper wall surface of a combustion chamber. Tumble flow generated during lean burn operation is controlled such that the tumble flow shape changes according to the engine rotation speed between a first tumble shape (usual tumble shape) in which the flow direction of a gas around the sparkplug at the time of ignition is direction from an intake valve side toward an exhaust valve side in a latter half of a compression stroke, and a second tumble shape (ω tumble shape) in which the flow direction of the gas is reversed in the latter half of the compression stroke from the direction from the intake valve side toward the exhaust valve side to the direction from the exhaust valve side toward the intake valve side.
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公开(公告)号：US09938927B2
公开(公告)日：2018-04-10
申请号：US15257778
申请日：2016-09-06
发明人： Koki Ando , Yuichi Katakura
CPC分类号： F02F3/285 , F02B17/005 , F02B23/104 , F02B2023/103 , F02B2275/40 , F02F1/242 , Y02T10/12 , Y02T10/125
摘要： A piston is used for an engine including: an ignition plug disposed in the vicinity of a central axis of a cylinder; intake and exhaust ports disposed at positions where the ignition plug is interposed therebetween; and an injector disposed at a position offset from the ignition plug toward the intake port to inject fuel sprays toward a crown surface of the piston. The piston includes: a recess formed by recessing the crown surface of the piston with respect to other portions of the crown surface, in which the recess includes a step on an outer peripheral edge over the entire circumference thereof with respect to the other portions, and a pair of lateral sides formed straightly so as to extend substantially in parallel to a straight line connecting the injector and the ignition plug when seen in a direction of the cylinder axis.
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公开(公告)号：US09915231B2
公开(公告)日：2018-03-13
申请号：US14746496
申请日：2015-06-22
IPC分类号： F02M27/06 , F02P23/04 , F02B23/10 , F02M31/18 , F02D41/04 , F02D41/06 , F02N19/04 , F02D13/02 , F02D19/08 , F02B75/12
CPC分类号： F02M27/06 , F02B23/104 , F02B2075/125 , F02D13/0207 , F02D13/0219 , F02D19/084 , F02D41/047 , F02D41/064 , F02D2200/0606 , F02D2250/02 , F02M31/18 , F02M31/183 , F02N19/04 , Y02T10/123 , Y02T10/125 , Y02T10/126 , Y02T10/36
摘要： A method for vaporizing fuel is provided. The method comprises heating the fuel in a cylinder of an engine via radiation to vaporize the fuel without ignition. In this way, the fuel may be heated to increase vaporization efficiency prior to ignition.
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公开(公告)号：US20180003140A1
公开(公告)日：2018-01-04
申请号：US15630124
申请日：2017-06-22
CPC分类号： F02M61/14 , F01P3/02 , F01P2003/024 , F02B1/08 , F02B1/10 , F02B5/00 , F02B17/005 , F02B23/104 , F02B2023/106 , F02B2075/125 , F02M69/045 , Y02T10/123 , Y02T10/125
摘要： Examples are directed to a fuel injection device positioned in a cylinder liner. In one example, a cylinder includes a combustion chamber which is jointly formed by a piston crown of a piston, by a cylinder barrel which laterally delimits the combustion chamber, and by a cylinder head. The cylinder includes an injection device positioned in the cylinder barrel for direct introduction of fuel into the combustion chamber, which injection device has at least one opening which, during a course of an injection process, is configured to be activated to introduce fuel into the combustion chamber, the injection device terminating flush, at a combustion chamber side, with the cylinder barrel.
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公开(公告)号：US09695771B2
公开(公告)日：2017-07-04
申请号：US14563147
申请日：2014-12-08
发明人： Shintaro Hotta
CPC分类号： F02D41/3035 , F02B23/104 , F02B29/0406 , F02B37/18 , F02B2023/106 , F02B2275/48 , F02D13/0207 , F02D41/0007 , F02D41/3064 , F02D41/3094 , F02D2041/001 , F02D2041/0015 , F02M35/10177 , Y02T10/125 , Y02T10/144 , Y02T10/146 , Y02T10/18
摘要： An engine control device controls control amounts of a variable valve mechanism and a spark plug, the control amounts in a homogeneous lean operation region set in a first load region are different from that in a non-lean operation region which is a stoichiometric or rich operation region set in a second load region higher than the first load region. The control device performs control, in other operation region set in a third load region between the first and second load region, so that an air-fuel ratio of the internal combustion engine is equal to that of non-lean operation region, the control amount of the variable valve mechanism is equal to that of homogeneous lean operation region and the control amount of the spark plug is equal to that of the non-lean operation region in accordance with an operation amount of an accelerator pedal.
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公开(公告)号：US09664135B2
公开(公告)日：2017-05-30
申请号：US14735547
申请日：2015-06-10
IPC分类号： F02M25/07 , F02D41/30 , F02B1/12 , F02D41/00 , F02D35/02 , F02D13/02 , F01L1/344 , F02M26/01 , F01L13/00 , F02B23/10
CPC分类号： F02D41/3035 , F01L13/0015 , F01L2001/34493 , F01L2800/10 , F02B1/12 , F02B23/104 , F02D13/0211 , F02D13/0219 , F02D13/0261 , F02D35/023 , F02D41/0002 , F02D41/0062 , F02D41/3029 , F02D41/3064 , F02D2041/001 , F02D2200/0411 , F02D2200/0616 , F02M26/01 , Y02T10/128 , Y02T10/18 , Y02T10/42 , Y02T10/47
摘要： An internal combustion engine is configured to operate in a homogeneous-charge compression-ignition combustion mode and a spark-ignition combustion mode employing late intake valve closing. A method for operating the internal combustion engine includes determining an amount of residual gas re-inducted into a combustion chamber from a previous engine cycle and determining an amount of fresh air trapped in the combustion chamber for the present engine cycle based upon the amount of residual gas re-inducted into the combustion chamber from the previous engine cycle. Engine fueling to the cylinder for the present engine cycle is controlled based upon the amount of fresh air trapped in the combustion chamber for the present engine cycle.
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公开(公告)号：US20170082058A1
公开(公告)日：2017-03-23
申请号：US15257769
申请日：2016-09-06
发明人： Yuichi KATAKURA , Koki ANDO
CPC分类号： F02F1/242 , F02B23/104 , F02B2023/103 , F02D41/38 , F02D41/401 , F02D41/402 , F02D2041/389 , F02F3/285 , Y02T10/125 , Y02T10/44
摘要： A fuel injection apparatus includes: an injector disposed at a position offset from an ignition plug toward an intake port and injecting a fuel spray toward a crown surface of a piston, and an injection controller causing the injector to perform injection in accordance with an amount and timing of fuel injection preset in accordance with an operating state of an engine. The piston includes: a first recess formed by recessing a central portion of the crown surface and a second recess formed by recessing part of the first recess on an injector side further than the first recess. The injector injects 50% or more of fuel to be injected for the last fuel injection toward the second recess during a compression stroke, and injects part of the fuel to be injected for the last fuel injection toward an area of the first recess other than the second recess.
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公开(公告)号：US20170009698A1
公开(公告)日：2017-01-12
申请号：US15183204
申请日：2016-06-15
发明人： Takeshi Tsugawa , Hiroki Morimoto , Nobuhiko Yokoyama , Shouichi Aiga , Yoshitomo Matsuo , Tomoaki Fujiyama , Yoshitaka Wada
CPC分类号： F02D41/401 , F02B23/104 , F02B31/00 , F02B2023/106 , F02B2075/125 , F02B2275/48 , F02D13/0207 , F02D37/02 , F02D41/402 , F02D2041/001 , F02D2041/0015 , F02D2041/389 , F02M61/14 , G01M15/042 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/18 , Y02T10/44
摘要： Provided is a control device of an engine that can certainly suppress and avoid pre-ignition. A control device of an engine is an engine control device for controlling the behavior of fuel that is directly injected into a combustion chamber of a cylinder by a tumble flow, and it has an injector that directly injects the fuel into the combustion chamber, an intake port that generates the tumble flow in the combustion chamber, and an ECU that injects the fuel from the injector at a plurality of injection timings including an intake-stroke-early-half injection timing that is set at an early half of the intake stroke of the cylinder, when an operating state of the engine is in a high-load, low-rotation range.
摘要翻译： 本发明提供一种能够可靠地抑制和避免点火前的发动机的控制装置。 发动机的控制装置是用于通过滚筒控制直接喷射到气缸的燃烧室中的燃料的行为的发动机控制装置，并且其具有将燃料直接喷射到燃烧室中的喷射器，进气口 在燃烧室中产生翻滚流的端口，以及ECU，其以多个喷射定时从喷射器喷射燃料，所述多个喷射定时包括设定在进气冲程的早期一半的进气冲程 - 半预喷射正时 当发动机的操作状态处于高负载，低旋转范围时，气缸。
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公开(公告)号：US09410515B2
公开(公告)日：2016-08-09
申请号：US14115794
申请日：2012-05-10
申请人： Motonari Yarino
发明人： Motonari Yarino
CPC分类号： F02M51/06 , F02B23/104 , F02B2023/103 , F02B2075/125 , F02M61/14 , F02M61/1813 , Y02T10/123 , Y02T10/125
摘要： A fuel injection valve (21) is provided with a plurality of injection holes (25) arranged at intervals in a lateral direction, when a direction in which a central axis (CL) of the cylinder (2) extends is a vertical direction, so that the plurality of injection holes (25) are directed radially. The plurality of injection holes (25) are configured such that, when an angle formed between two adjacent injection axes, among a plurality of injection axes (Axf) defining the respective injection directions of the injection holes, is an included angle, the included angle (θ1) formed by two injection axes closest to the central axis of the cylinder (2) is the smallest of all the included angles (θ1, θ2, θ3).
摘要翻译： 燃料喷射阀（21）在圆筒（2）的中心轴（CL）延伸的方向为垂直方向时，设置有沿横向间隔设置的多个喷射孔（25），因此 多个喷射孔（25）径向地指向。 多个注入孔（25）构成为，在限定喷射孔的各喷射方向的多个喷射轴（Axf）之间形成的两个相邻的喷射轴之间形成的角度为夹角时，夹角 由最靠近气缸（2）的中心轴的两个喷射轴形成的（θ1）是所有夹角（θ1，θ2，θ3）中的最小值。
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