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公开(公告)号：US20160061097A1
公开(公告)日：2016-03-03
申请号：US14935889
申请日：2015-11-09
申请人： IHI Corporation
发明人： Takahiro KUGE , Yutaka MASUDA , Takayuki YAMADA , Takeshi YAMADA
CPC分类号： F02B25/04 , F02B75/02 , F02B2075/025 , F02D19/0647 , F02D19/10 , F02M21/0278 , F02M21/042 , Y02T10/32 , Y02T10/36
摘要： A uniflow scavenging 2-cycle engine includes a cylinder inside which a combustion chamber is formed; a piston which slides within the cylinder; a scavenge port which is provided on one end side in a stroke direction of the piston in the cylinder to suck an active gas into the combustion chamber in accordance with the sliding movement of the piston; and a fuel injection unit which has an injection port located on the outside of the cylinder, and injects the fuel gas into the active gas sucked into the scavenge port.
摘要翻译： 单流清扫2循环发动机包括形成燃烧室的缸体; 在气缸内滑动的活塞; 一个清除口，其设置在气缸的活塞的冲程方向的一端侧，以根据活塞的滑动运动将活性气体吸入燃烧室; 以及燃料喷射单元，其具有位于气缸外侧的喷射口，并且将燃料气体喷射到吸入到清除口中的活性气体中。
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公开(公告)号：US20150167537A1
公开(公告)日：2015-06-18
申请号：US14633859
申请日：2015-02-27
申请人： IHI Corporation
CPC分类号： F02B25/02 , F02B7/06 , F02B25/04 , F02B75/02 , F02B2075/025 , F02D19/0647 , F02D19/10 , F02D41/3094 , F02D2400/04 , F02M21/0248 , F02M21/0275 , F02M21/0278 , F02M21/0284 , Y02T10/32 , Y02T10/36
摘要： A uniflow-scavenging-type two-cycle engine according to the present invention includes: a cylinder in which a combustion chamber is formed; a piston that slides in the cylinder; a scavenging port that is provided at one end of the cylinder in a stroke direction of the piston and draws in an active gas into the combustion chamber in accordance with a sliding movement of the piston; a fuel injection section that is provided in the scavenging port on an outer side of the cylinder than a center of a width of the scavenging port in a penetration direction and injects a fuel gas to the active gas drawn in into the scavenging port.
摘要翻译： 根据本发明的单清扫型双冲程发动机包括：形成有燃烧室的气缸; 活塞在气缸中滑动; 清扫口，其沿活塞的行程方向设置在气缸的一端，并根据活塞的滑动运动将活性气体吸入燃烧室; 燃料喷射部，其设置在所述气缸的外侧的所述清扫口中，与所述扫气口的宽度在穿透方向的宽度方向的中心相对，并且将燃料气体喷射到被吸入到所述清扫口内的活性气体。
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公开(公告)号：US20150167538A1
公开(公告)日：2015-06-18
申请号：US14629862
申请日：2015-02-24
申请人： IHI CORPORATION
CPC分类号： F02B25/04 , F02B75/02 , F02B2075/025 , F02D41/0027 , F02D41/3094 , F02D2041/0015 , F02D2400/04 , F02M21/0275 , F02M21/0284 , Y02T10/32 , Y02T10/36
摘要： A uniflow-scavenging-type two-cycle engine of the present invention includes: a cylinder; a piston that slides in the cylinder; an exhaust port that is provided at a first end of the cylinder; an exhaust valve that opens and closes the exhaust port; a scavenging port that is provided in an inner circumferential surface of a second end of the cylinder in the stroke direction of the piston and draws in an active gas into the combustion chamber in accordance with a sliding movement of the piston; and a plurality of fuel injection valves that inject a fuel gas to the active gas, which has been drawn in from the scavenging port to the combustion chamber, to thereby generate a premixed gas. The fuel injection valves at least include: a first fuel injection valve that injects a fuel gas along a swirling flow of the active gas drawn in into the cylinder; and a second fuel injection valve that injects a fuel gas toward a direction closer to a central axis of the cylinder than the direction of the fuel gas from the first fuel injection valve.
摘要翻译： 本发明的单清扫型二冲程发动机包括：气缸; 活塞在气缸中滑动; 排气口，其设置在所述气缸的第一端; 排气阀，其开闭排气口; 清扫口，其设置在所述活塞的行程方向的所述气缸的第二端的内周面中，并且根据所述活塞的滑动运动将活性气体吸入所述燃烧室; 以及多个燃料喷射阀，其向从所述扫气口吸入燃烧室的活性气体喷射燃料气体，从而产生预混合气体。 燃料喷射阀至少包括：第一燃料喷射阀，其沿着被吸入气缸中的活性气体的旋转流喷射燃料气体; 以及第二燃料喷射阀，其将燃料气体朝向比来自第一燃料喷射阀的燃料气体的方向更靠近气缸的中心轴线的方向喷射。
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公开(公告)号：US20160061099A1
公开(公告)日：2016-03-03
申请号：US14935300
申请日：2015-11-06
申请人： IHI Corporation
发明人： Takahiro KUGE , Yutaka MASUDA , Takayuki YAMADA , Takeshi YAMADA , Masafumi KAWAI , Ken SHIZUYA
CPC分类号： F02B25/06 , F02B23/02 , F02B25/04 , F02B75/02 , F02B2075/025 , F02D19/10 , F02D41/0025 , F02D41/3047 , F02D2400/04 , F02M21/02 , F02M21/0275 , F02M21/0278 , Y02T10/125 , Y02T10/32 , Y02T10/36
摘要： A uniflow scavenging two-cycle engine includes a scavenge port and a plurality of injection units which inject a fuel gas into the active gas sucked into the scavenge port and have different positions of the piston in the stroke direction. The plurality of injection units are divided into at least two sets of injection unit groups include first and second injection unit groups, the first injection unit group being a set of one or a plurality of injection units located on the other end side in the stroke direction, and the second injection unit group being a set of one or a plurality of injection units located on one end side in the stroke direction, and the injection stop of the fuel gas is later in the injection unit of the first injection unit group than in the injection unit of the second injection unit group.
摘要翻译： 单流清扫双循环发动机包括清扫口和多个喷射单元，其将吸入入口的活性气体中的燃料气体注入并且在行程方向上具有不同的活塞位置。 多个喷射单元被分成至少两组喷射单元组，包括第一和第二喷射单元组，第一喷射单元组是位于行程方向另一端侧的一个或多个喷射单元的一组 ，第二喷射单元组是位于行程方向一端侧的一个或多个喷射单元的一组，并且在第一喷射单元组的喷射单元中的燃料气体的喷射停止比在 第二注射单元组的注射单元。
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公开(公告)号：US20150075485A1
公开(公告)日：2015-03-19
申请号：US14559555
申请日：2014-12-03
申请人： IHI Corporation
CPC分类号： F02D41/34 , F02B1/10 , F02B25/04 , F02B75/02 , F02B2075/025 , F02D19/061 , F02D19/0689 , F02D19/0692 , F02D19/10 , F02D35/023 , F02D35/024 , F02D41/0025 , F02D41/0027 , F02D41/345 , F02D2041/389 , F02D2250/31 , F02D2400/04 , Y02T10/36 , Y02T10/44
摘要： A two-stroke uniflow engine is provided with: a cylinder; a piston; an exhaust valve that is opened and closed in order to discharge exhaust gas that is generated inside the cylinder; a scavenging port that takes active gas into the interior of the cylinder in accordance with a sliding movement of the piston; a fuel injection port that is provided in the internal circumferential surface of the cylinder; a fuel injection valve that injects fuel gas into the fuel injection port; and a fuel injection control unit that executes control of the injection of the fuel gas in the fuel injection valve, wherein the fuel injection control unit decides at least one of an injection pressure and an injection time of the fuel injection valve based on a change in pressure inside the cylinder that is caused by a reciprocating movement of the piston.
摘要翻译： 一个二冲程单流发动机配有：气缸; 活塞 排气阀，其被打开和关闭以排出在气缸内产生的废气; 一个清除口，根据活塞的滑动运动将活性气体吸入气缸的内部; 燃料喷射口，设置在气缸的内周面上; 燃料喷射阀，其将燃料气体喷射到燃料喷射口中; 以及燃料喷射控制单元，其执行对所述燃料喷射阀中的燃料气体的喷射的控制，其中所述燃料喷射控制单元基于所述燃料喷射阀的变化来决定所述燃料喷射阀的喷射压力和喷射时间中的至少一个 由活塞的往复运动引起的气缸内的压力。
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公开(公告)号：US20170175616A1
公开(公告)日：2017-06-22
申请号：US15450227
申请日：2017-03-06
申请人： IHI Corporation
发明人： Yutaka MASUDA , Takahiro KUGE , Takayuki YAMADA , Takeshi YAMADA , Jun TERAMOTO
CPC分类号： F02B25/04 , F02B23/10 , F02B31/00 , F02B43/02 , F02B75/04 , F02B75/044 , F02B2023/108 , F02D15/02 , F02D19/105 , Y02T10/125 , Y02T10/146 , Y02T10/32 , Y02T10/36
摘要： A uniflow scavenging two-cycle engine includes an scavenging port having a swirling guide portion that guides scavenging gas into a cylinder in a direction inclined with respect to a radial direction of the cylinder, and a center guide portion that is provided to be closer to a crank side of the cylinder than the swirling guide portion and guides the scavenging gas further toward the center side of the cylinder than the swirling guide portion. At least a part of the center guide portion faces a piston when the piston is positioned at bottom dead center during the high compression ratio mode, and the center guide portion and the piston do not face each other or an area of facing the piston is smaller than that during the high compression ratio mode when the piston is positioned at bottom dead center during the low compression ratio mode.
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公开(公告)号：US20160061098A1
公开(公告)日：2016-03-03
申请号：US14935233
申请日：2015-11-06
申请人： IHI Corporation
发明人： Takahiro KUGE , Yutaka MASUDA , Takayuki YAMADA , Takeshi YAMADA , Masafumi KAWAI , Ken SHIZUYA
CPC分类号： F02B25/06 , F02B25/04 , F02B75/02 , F02B2075/025 , F02M21/0218 , F02M21/0275 , F02M21/0278 , Y02T10/32
摘要： A uniflow scavenging 2-cycle engine includes a cylinder inside in which a combustion chamber is formed; a piston which slides within the cylinder; a scavenge port which is provided on one end side in a stroke direction of the piston in the cylinder to suck an active gas into the combustion chamber in accordance with the sliding movement of the piston; and an injection unit which injects a fuel gas into the active gas suctioned to the scavenge port and is provided on an inner circumferential surface of the scavenge port or on the outside of the cylinder rather than the inner circumferential surface. Further, the amount of the fuel gas injected by the injection unit on the other end side in the stroke direction is larger than the amount of fuel gas injected by the injection unit on one end side in the stroke direction.
摘要翻译： 单流清扫2循环发动机包括在其内形成有燃烧室的气缸; 在气缸内滑动的活塞; 一个清除口，其设置在气缸的活塞的冲程方向的一端侧，以根据活塞的滑动运动将活性气体吸入燃烧室; 以及喷射单元，其将燃料气体喷射到被抽吸到所述清除口的活性气体中，并且设置在所述清除口的内周面或所述气缸的外侧而不是所述内周面。 此外，喷射单元在行程方向上的另一端侧喷射的燃料气体的量比在喷射单元在行程方向上的一端侧喷射的燃料气体量大。
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公开(公告)号：US20150176475A1
公开(公告)日：2015-06-25
申请号：US14634113
申请日：2015-02-27
申请人： IHI CORPORATION
CPC分类号： F02B25/02 , F02B7/08 , F02B25/04 , F02B2075/025 , F02D19/10 , F02D41/0027 , F02D41/3094 , F02D41/32 , F02D41/34 , F02D2041/389 , F02D2250/08 , F02D2400/04 , F02M21/0275 , F02M21/0281 , F02M21/0284 , Y02T10/32 , Y02T10/36 , Y02T10/44
摘要： A uniflow-scavenging-type two-cycle engine includes: a cylinder; a piston that slides in the cylinder; an exhaust port that is provided at a first end of the cylinder; an exhaust valve that opens and closes the exhaust port; a scavenging port that is provided in an inner circumferential surface of a second end of the cylinder in the stroke direction of the piston and inhales an active gas into a combustion chamber in accordance with a sliding movement of the piston; a plurality of fuel injection valves that inject a fuel gas to the active gas, which has been drawn in from the scavenging port to the combustion chamber, to thereby generate a premixed gas; and a fuel injection control unit that varies injection directions of fuel gas injected from a part or all of the fuel injection valves.
摘要翻译： 单清扫型双循环发动机包括：气缸; 活塞在气缸中滑动; 排气口，其设置在所述气缸的第一端; 排气阀，其开闭排气口; 清扫口，其设置在所述活塞的行程方向上的所述气缸的第二端的内周面中，并根据所述活塞的滑动运动将活性气体吸入燃烧室; 多个燃料喷射阀，其向从所述扫气口向所述燃烧室吸入的活性气体喷射燃料气体，从而产生预混气体; 以及燃料喷射控制单元，其改变从部分或全部燃料喷射阀喷射的燃料气体的喷射方向。
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