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公开(公告)号：US11365674B2
公开(公告)日：2022-06-21
申请号：US17303489
申请日：2021-05-29
IPC分类号： F02B75/28 , F02B75/26 , F02B25/08 , F02B57/08 , F02B1/12 , F02B63/04 , F02B11/00 , F02B33/06
摘要： A two cycle-opposed piston, two cycle, homogenous charge compression ignition engine with cylinder sets, each cylinder set having a first cylinder with an intake port; a second cylinder coaxially aligned with the first cylinder and having an exhaust port; a first piston engaged within the first cylinder; a second piston engaged within the second cylinder; a combustion chamber formed between the first piston and the second piston; a first cam mechanically engaged with the first piston; a mechanical device to convert reciprocating motion to rotational motion connected to the second piston; and a charge pump connected to the intake port by an intake passage.
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公开(公告)号：US11156181B1
公开(公告)日：2021-10-26
申请号：US17327391
申请日：2021-05-21
摘要： A method of operating a hydrogen-fueled internal combustion engine. The engine is determined to have a mode control value, which represents a threshold torque. During operation of the engine, a demanded torque of the internal combustion engine is determined and compared to the threshold torque. If the demanded torque is less than the threshold torque, the engine is operated in a low load mode that uses spark ignition and pre-mixed combustion. If the demanded torque is greater than the threshold torque, the engine is operated in a high load mode that uses compression ignition and diffusion combustion.
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公开(公告)号：US20210189945A1
公开(公告)日：2021-06-24
申请号：US17051663
申请日：2019-04-17
发明人： Kota MATSUMOTO , Tomonori URUSHIHARA , Keiji MARUYAMA , Masanari SUEOKA , Ryohei ONO , Yuji HARADA , Toru MIYAMOTO , Atsushi INOUE , Tatsuhiro TOKUNAGA , Takuya OHURA , Yusuke KAWAI , Tomohiro NISHIDA , Keita ARAI , Yodai YAMAGUCHI
摘要： The invention is provided with an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more retarded when fuel concentration specified by a fuel concentration specification section is low than when the fuel concentration is high.
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公开(公告)号：US11015515B2
公开(公告)日：2021-05-25
申请号：US16678305
申请日：2019-11-08
发明人： Satoshi Imamura , Masaki Fukuma , Yasushi Nakahara , Atsushi Inoue , Kota Matsumoto , Michiharu Kawano , Yuya Honda , Futa Nishi
摘要： A combustion chamber structure for an engine includes a combustion chamber where SI combustion by spark ignition and CI combustion by self-ignition are conducted. A crown surface includes a cavity recessed to have a bowl-shape; a pair of first raised portions having a mound-shape along a pent roof shape; and a second raised portion provided to protrude at a position orthogonal to a ridge extending direction of the pair of first raised portions. With a height of the first raised portion relative to a height position of a deepest portion of the cavity being represented as H1 and a height of the second raised portion being represented as H2, H1/H2 as a ratio of the height H1 of the first raised portion to the height H2 of the second raised portion is set to be in a range of 1.92 or more and 2.75 or less.
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5.发明授权公开(公告)号：US09488094B2
公开(公告)日：2016-11-08
申请号：US14343381
申请日：2012-08-28
申请人： Hiroyuki Yamashita , Kazuaki Narahara , Tatsuya Tanaka , Yoshitomo Takahashi , Yusuke Nakao , Takashi Ikai , Hidefumi Fujimoto , Masatoshi Seto , Yoshio Tanita , Kazuo Ichikawa , Shingo Kai , Susumu Masuyama , Hirokazu Nakahashi , Keiji Araki
发明人： Hiroyuki Yamashita , Kazuaki Narahara , Tatsuya Tanaka , Yoshitomo Takahashi , Yusuke Nakao , Takashi Ikai , Hidefumi Fujimoto , Masatoshi Seto , Yoshio Tanita , Kazuo Ichikawa , Shingo Kai , Susumu Masuyama , Hirokazu Nakahashi , Keiji Araki
IPC分类号： F02P5/00 , F02B17/00 , F02B11/00 , F02F3/12 , F02D41/40 , F01L3/04 , F02P5/153 , F01L1/34 , F01L13/00 , F02D41/30 , F02P23/04
CPC分类号： F02B17/005 , F01L1/34 , F01L3/04 , F01L13/0015 , F01L2101/00 , F01L2101/02 , F02B11/00 , F02D41/3035 , F02D41/401 , F02D41/403 , F02D2200/025 , F02F3/12 , F02P5/153 , F02P23/04 , Y02T10/44 , Y02T10/46
摘要： A direct injection engine includes an ignition assistance section applying energy to fuel injected into a cylinder using an injector to assist auto-ignition combustion of the fuel when the engine is within an auto-ignition combustion operation range. A start time of fuel injection is set within a period from a terminal stage of a compression stroke to a compression top dead center. The energy is applied to the fuel injected into the cylinder in a period from start of the fuel injection to an initial stage of an expansion stroke such that a time of a specific crank angle when an increase rate of in-cylinder pressure, which is a ratio of a change in the in-cylinder pressure to a change in a crank angle in motoring the engine, reaches a negative maximum value overlaps a combustion period when a combustion mass percentage of the fuel ranges from 10% to 90%.
摘要翻译： 直接喷射发动机包括点火辅助部分，当发动机处于自燃点燃燃烧操作范围内时，使用喷射器将能量喷射到喷射到气缸中的燃料中，以辅助燃料的自燃。 在从压缩冲程的终端到压缩上止点的期间内设定燃料喷射的开始时间。 在从燃料喷射开始到膨胀冲程的初始阶段的期间，将能量施加到喷射到气缸中的燃料，使得当缸内压力的增加率（即 当燃料的燃烧质量百分比为10％至90％时，缸内压力变化与发动机起动时曲柄角变化的比率达到负最大值与燃烧时间重叠。
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公开(公告)号：US09435285B2
公开(公告)日：2016-09-06
申请号：US13692595
申请日：2012-12-03
CPC分类号： F02D41/3064 , F02D19/0613 , F02D19/0615 , F02D19/0621 , F02D19/0642 , F02D19/0649 , F02D41/0025 , F02D41/0027 , F02D41/0087 , Y02T10/36
摘要： A control system for an engine including a fuel delivery system and an ignition source is provided. The control system includes a detector, a processor, and at least one actuator. The detector is configured to sense a signal to change from a compression ignited fuel to a spark ignited fuel. The processor is configured to receive the signal from the detector and generate an actuation signal. The actuator is configured to receive the actuation signal, vary an operating speed of the engine, and selectively control at least one of the fuel delivery system and the ignition source.
摘要翻译： 提供了一种用于包括燃料输送系统和点火源的发动机的控制系统。 控制系统包括检测器，处理器和至少一个致动器。 检测器被配置为感测从压缩点燃的燃料转变为火花点燃燃料的信号。 处理器被配置为从检测器接收信号并产生致动信号。 致动器被配置为接收致动信号，改变发动机的操作速度，并且选择性地控制燃料输送系统和点燃源中的至少一个。
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公开(公告)号：US09429087B2
公开(公告)日：2016-08-30
申请号：US14426010
申请日：2013-03-27
发明人： Kouhei Iwai , Junichi Taga , Keiji Araki
IPC分类号： F02D41/00 , F02D41/30 , F02D21/08 , F02B23/10 , F02B29/04 , F02D13/02 , F02B11/00 , F02B1/12 , F02D41/40 , F02D37/02
CPC分类号： F02D41/0057 , F02B1/12 , F02B11/00 , F02B23/101 , F02B29/0418 , F02B29/0437 , F02D13/0203 , F02D13/0207 , F02D13/0261 , F02D13/0273 , F02D21/08 , F02D35/023 , F02D37/02 , F02D41/0002 , F02D41/0055 , F02D41/006 , F02D41/3035 , F02D41/3064 , F02D41/402 , F02D2041/001 , F02M26/01 , F02M26/25 , F02M26/28 , Y02T10/125 , Y02T10/128 , Y02T10/146 , Y02T10/18 , Y02T10/42 , Y02T10/47
摘要： A controller performs switching between a compression ignition mode in which compression ignition combustion is performed to operate an engine body, and a spark ignition mode in which spark ignition combustion is performed to drive a spark plug to ignite and combust an air-fuel mixture in a cylinder. The controller reduces an EGR ratio to be lower than an EGR ratio set in the compression ignition mode to operate the engine body in a transitional mode in which the compression ignition combustion is performed in switching from the spark ignition mode to the compression ignition mode.
摘要翻译： 控制器执行在执行压缩点火燃烧以操作发动机主体的压缩点火模式和进行火花点火燃烧以驱动火花塞以点燃和燃烧空气燃料混合物的火花点火模式之间的切换 圆筒。 控制器将EGR率降低到低于在压缩点火模式中设定的EGR率，以在以从火花点火模式切换到压缩点火模式进行压缩点火燃烧的过渡模式来操作发动机主体。
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公开(公告)号：US09200611B2
公开(公告)日：2015-12-01
申请号：US14001259
申请日：2011-02-24
CPC分类号： F02P17/12 , F02B11/00 , F02D19/06 , F02D19/0628 , F02D19/0647 , F02D19/0692 , F02D19/081 , F02D35/021 , F02D35/023 , F02D37/02 , F02D41/0025 , F02D41/0027 , F02D41/1446 , F02D41/1498 , F02D41/22 , F02D41/221 , F02D2041/228 , F02D2200/1015 , F02P5/045 , F02P5/1502 , F02P5/151 , F02P17/02 , F02P2017/121 , F02P2017/128 , Y02T10/36 , Y02T10/46
摘要： The present invention has been made in view of the above-mentioned problems, and is intended to carry out ignition to a mixture in a more stable manner in a multi-fuel internal combustion engine. In the control apparatus for a multi-fuel internal combustion engine which is able to be operated by mixed combustion of a plurality of kinds of fuels, a mixing ratio of the plurality of kinds of fuels is controlled by a mixing ratio control unit, and ignition timing of a spark plug is controlled by an ignition timing control unit, in such manner that a required discharge voltage is made equal to or less than a voltage which is lower by a fixed value than a voltage to be applied to said spark plug (S104, S108).
摘要翻译： 鉴于上述问题而作出本发明，旨在在多燃料内燃机中以更稳定的方式对混合物进行点火。 在能够通过多种燃料的混合燃烧进行操作的多燃料内燃机的控制装置中，多种燃料的混合比由混合比率控制单元控制，点火 火花塞的定时由点火正时控制单元控制，使得要求的放电电压等于或小于比施加到所述火花塞的电压低一个固定值的电压（S104 ，S108）。
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公开(公告)号：US20150053171A1
公开(公告)日：2015-02-26
申请号：US14152895
申请日：2014-01-10
发明人： Shizuo Sasaki
IPC分类号： F02B11/00
CPC分类号： F02B11/00 , F01P2025/30 , F02B29/0412 , F02B29/0418 , F02B29/0493 , F02D37/02 , F02D41/0057 , F02D41/3035 , F02D41/3041 , F02D41/3064 , F02D41/401 , F02D41/402 , F02D2200/021 , F02D2200/0414 , F02D2200/0606 , F02D2200/101 , F02M26/06 , F02M26/08 , F02M26/15 , F02M26/23 , F02M26/64 , F02M26/70 , F02M31/042 , F02P5/045 , Y02T10/126 , Y02T10/146 , Y02T10/47
摘要： Set forth herein are apparatuses and systems that utilize high temperature fuel injection to eliminate knocking within a combustion systems, and more particularly internal combustion engines. In some embodiments, the combustion system of the present invention can eliminate knocking through the use of high compression ratios and high intake boost pressures. The combustion system can have a high exhaust gas recirculation (EGR) tolerance, as well as an increased range of fuel-air ratio with improved ignitability and increased combustion speed of the system. In some embodiments, combustion in the present invention takes place using a compression ignition process, a spark assisted compression ignition process or a combination thereof.
摘要翻译： 这里提出的是利用高温燃料喷射以消除燃烧系统内的爆震，特别是内燃机的装置和系统。 在一些实施例中，本发明的燃烧系统可以通过使用高压缩比和高进气增压压力来消除爆震。 燃烧系统可以具有高废气再循环（EGR）公差，以及燃料 - 空气比范围的增加，燃烧系统的燃烧速度提高。 在一些实施例中，本发明中的燃烧使用压缩点火方法，火花辅助压缩点火方法或其组合进行。
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公开(公告)号：US07032378B2
公开(公告)日：2006-04-25
申请号：US10847358
申请日：2004-05-18
申请人： Kensuke Ioku , Jun Nakano
发明人： Kensuke Ioku , Jun Nakano
CPC分类号： E02F9/2267 , E02F3/433 , E02F9/2225 , E02F9/2271 , F15B11/20
摘要： There is provided a flow divider system in a hydraulic circuit for a work machine including a boom cylinder and a bucket cylinder. The flow divider system divides a pressured oil drained from a one-boom cylinder into an other-bucket cylinder and a tank via a first orifice, a second orifice and a flow dividing valve, maintaining a specified pressure difference between pressures downstream the first and second orifices. The first and second orifice are configured of a variable orifice respectively, and in the event that the oil flow from the one-boom chamber decreases, respective opening degrees of the first and second orifices are controlled so as to be reduced. Accordingly, changing of a divisional ratio of oil flow can be suppressed properly regardless of a small oil flow drained from the boom cylinder.
摘要翻译： 在包括动臂缸和铲斗缸的作业机械的液压回路中设置有分流器系统。 分流器系统通过第一孔，第二孔和分流阀将从单臂液压缸排出的加压油分成另一桶缸和罐，在第一和第二下游的压力之间保持规定的压力差 孔。 第一和第二孔口分别由可变孔口构成，并且在来自单臂室的油流量减小的情况下，第一和第二孔口的相应开度被控制以减小。 因此，能够适当地抑制油流量的分割比的变化，而不管从动臂油缸排出的小的油流。
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