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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：US5062395A
公开(公告)日：1991-11-05
申请号：US465159
申请日：1990-03-30
申请人： Manabu Tateno
发明人： Manabu Tateno
IPC分类号： F02B17/00 , F02B1/10 , F02B23/10 , F02B25/14 , F02B75/02 , F02B75/12 , F02M61/14 , F02M69/04 , F02M69/08 , F02M69/46
CPC分类号： F02B23/104 , F02B25/145 , F02M69/045 , F02M69/08 , F02M69/465 , F02B1/10 , F02B2023/107 , F02B2075/025 , F02B2075/125 , Y02T10/123 , Y02T10/125
摘要： A two-stroke internal combustion engine provided with a masking wall (8a, 40b) which is disposed between an intake valve (6) and exhaust valve (7) disposed on a cylinder head inner wall surface (3a) and which closes the opening between the peripheral edge of the intake valve (6) and valve seat (9) positioned at the exhaust valve (7) side, over the period of full opening of the intake valve (6), and a fuel injection valve (14, 42) which is disposed at the peripheral side portion of the cylinder head inner wall surface (3a) at the intake valve (6) side, wherein the fuel injection from the fuel injection valve (14, 42) to the cylinder (1) is started when the intake valve (6) opens. By this, it is possible to easily ignite the fuel and to stabilize the combustion after ignition.
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公开(公告)号：US4117813A
公开(公告)日：1978-10-03
申请号：US736461
申请日：1976-10-28
IPC分类号： F01N3/26 , F02B1/04 , F02B1/08 , F02B1/10 , F02B23/08 , F02B75/02 , F02D13/02 , F02D37/02 , F02M1/04 , F02M3/12 , F02M7/17 , F02M25/07 , F02M31/04 , F02M33/04 , F02M33/06 , F02M69/04 , F02M7/00 , F02M25/06 , F02M31/00 , F02P5/04
CPC分类号： F02D13/0234 , F01N3/26 , F02B1/10 , F02B23/08 , F02D13/0261 , F02D37/02 , F02M1/046 , F02M26/01 , F02M26/23 , F02M26/39 , F02M26/44 , F02M26/58 , F02M26/61 , F02M26/70 , F02M26/71 , F02M3/12 , F02M31/045 , F02M33/04 , F02M33/06 , F02M69/043 , F02M69/044 , F02M7/17 , F02B1/04 , F02B1/08 , F02B2075/027 , F02B2275/18 , F02M2026/002 , F02M26/27 , Y02T10/125 , Y02T10/126 , Y02T10/18
摘要： An internal combustion engine and means to operate the same to produce minimal quantities and concentrations of oxides of nitrogen (NOx), carbon monoxide (CO) and unburned hydrocarbons (HC). The engine is operated with a lean air/fuel mixture at both low and high load conditions, thereby minimizing said emissions. Low load operation on lean mixtures is made possible by means and methods for maintaining at a suitably low numerical value the residual fraction which is defined as the ratio of gases in a cylinder from a previous cycle and the total gases in the cylinder for the next cycle (said gases from a previous cycle plus new mixture). Said means may comprise apparatus to shorten the duration of intake and exhaust valve overlap, or of opening the engine throttle wider than normal and retarding the ignition to reduce the engine speed at low loads. Means is preferably provided wherein the fuel in the air/fuel mixture is well-vaporized and the mixture is uniform and homogeneous. Some of such means may comprise vaporizing means whereby fuel film adherent to the wall of the engine's induction means is vaporized by heat, or is collected and discharged into the air stream.
摘要翻译： 一种内燃机及其操作装置，以产生最小量和浓度的氮氧化物（NOx），一氧化碳（CO）和未燃碳氢化合物（HC））。 发动机在低负荷和低负载条件下都能用稀薄的空气/燃料混合物进行操作，从而使排放最小化。 在贫混合物上的低负载运行是通过用于将数值保持在适当的低数值的方式和方法实现的，残余分数被定义为来自前一循环的气缸中气体与下一循环中气缸中的总气体的比率 （来自前一个循环的气体加上新的混合物）。 所述装置可以包括用于缩短进气和排气门重叠的持续时间，或者比正常情况更宽地打开发动机节气门并延迟点火以降低低负载时的发动机转速的装置。 优选提供装置，其中空气/燃料混合物中的燃料被良好蒸发并且混合物是均匀和均匀的。 这些装置中的一些可以包括蒸发装置，由此附着在发动机的感应装置的壁上的燃料膜被热蒸发，或被收集并排出到气流中。
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公开(公告)号：US20190186395A1
公开(公告)日：2019-06-20
申请号：US16189857
申请日：2018-11-13
CPC分类号： F02D41/0057 , F02B1/10 , F02B1/14 , F02D13/0261 , F02D35/026 , F02D41/006 , F02D41/0062 , F02D41/0065 , F02D41/0077 , F02D41/3041 , F02D41/401 , F02D2041/0015 , F02D2200/101 , F02M26/33 , F02P5/1502
摘要： A control system for a compression-ignition engine is provided, which includes an engine having a combustion chamber formed by a cylinder, a piston and a cylinder head, an injector, a spark plug, an exhaust gas recirculation (EGR) device configured to introduce into the combustion chamber a portion of burned gas generated inside the combustion chamber as EGR gas, an EGR controller configured to change an EGR ratio, the EGR controller changing the EGR ratio so that a compression start temperature of the combustion chamber rises as an engine load is reduced, and a controller connected to the injector and the spark plug to control them. The controller includes a processor configured to execute a combustion controlling module to output an instruction to the spark plug so as to ignite at an ignition timing after the EGR ratio adjustment so that partial compression-ignition combustion is performed.
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公开(公告)号：US09556818B2
公开(公告)日：2017-01-31
申请号：US14559555
申请日：2014-12-03
申请人： IHI Corporation
IPC分类号： F02M69/10 , F02D41/34 , F02B25/04 , F02D19/10 , F02D19/06 , F02D41/00 , F02B1/10 , F02D35/02 , F02B75/02 , F02D41/38
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：US5806483A
公开(公告)日：1998-09-15
申请号：US855240
申请日：1997-05-13
申请人： Yukuaki Mitarai , Takashi Mizusawa , Shigeo Hagino
发明人： Yukuaki Mitarai , Takashi Mizusawa , Shigeo Hagino
IPC分类号： F02B23/00 , F02B1/10 , F02B3/06 , F02B23/10 , F02B43/00 , F02B51/02 , F02B75/02 , F02D41/22 , F02M27/02 , F02M45/02 , F02P23/02 , F02B3/00 , F02P23/00
CPC分类号： F02B1/10 , F02B43/00 , F02B51/02 , F02B75/02 , F02P23/02 , F02B2275/14 , F02B23/101 , F02B3/06 , F02D2200/0606 , F05C2201/0448 , F05C2201/046 , Y02T10/123 , Y02T10/126 , Y02T10/32
摘要： A combustion method for an internal combustion engine which prevents the occurrence of engine knock and improves fuel consumption and economy, by spray injecting part of the fuel used in one cycle into a combustion chamber, performing preliminary combustion of a diluted air-fuel mixture below combustible limits at a temperature lower than the self-igniting temperature of the fuel, then injecting the remaining fuel into the combustion chamber, and performing main combustion by flame propagation using spark plugs as ignition sources. Accordingly, the combustion method for an internal combustion engine of the present invention can attain stable combustion even at high air-fuel ratios and makes high compression ratios possible.
摘要翻译： 一种用于内燃机的燃烧方法，其通过将一个循环中使用的燃料的一部分喷射喷射到燃烧室中，防止发动机爆震的发生并提高燃料消耗和经济性，将低于可燃物体的稀释空气 - 燃料混合物进行预燃 在低于燃料的自燃温度的温度下限制，然后将剩余的燃料注入燃烧室，并通过使用火花塞作为点火源的火焰传播进行主燃烧。 因此，本发明的内燃机的燃烧方法即使在高空燃比下也能够得到稳定的燃烧，并且能够实现高的压缩比。
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公开(公告)号：US4123996A
公开(公告)日：1978-11-07
申请号：US720388
申请日：1976-09-03
摘要： A spark ignited Otto cycle type engine have a fixed compression ratio which is supplied with a mixture of air and fuel having an octane number lower than that which would normally be appropriate for the compression ratio. The engine operates in a range below a predetermined high load without spontaneous combustion of the fuel-air mixture but will be susceptible to spontaneous combustion when operated above the predetermined high load. The engine includes means for controlling combustion of the fuel-air mixture when operating above the predetermined high load in a manner to decrease the efficiency of the engine and to prevent spontaneous combustion which would otherwise occur.
摘要翻译： 火花点火奥托循环型发动机具有固定的压缩比，其被提供有空气和燃料的混合物，该混合物的辛烷值低于通常适合于压缩比的辛烷值。 发动机在低于预定高负荷的范围内工作，而不会燃料 - 空气混合物自发燃烧，但是在高于预定的高负荷运行时将容易发生自燃。 发动机包括用于在以预定的高负载运行时控制燃料 - 空气混合物的燃烧的方法，以降低发动机的效率并防止否则将发生的自燃。
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公开(公告)号：US20190145337A1
公开(公告)日：2019-05-16
申请号：US16167891
申请日：2018-10-23
发明人： Daisuke Tanaka , Taichi Masuoka
CPC分类号： F02D41/3041 , F02B1/10 , F02B1/14 , F02D13/0261 , F02D35/023 , F02D37/02 , F02D41/0057 , F02D41/006 , F02D41/0065 , F02D41/0077 , F02D41/401 , F02D2041/0015 , F02D2200/025 , F02D2200/101 , F02D2200/501 , F02M26/33 , F02P5/1502
摘要： A control device for an on-board compression-ignition engine in which partial compression-ignition combustion including spark ignition (SI) combustion performed by combusting a portion of mixture gas inside a cylinder by spark ignition followed by compression ignition (CI) combustion performed by causing the rest of the mixture gas inside the cylinder to self-ignite is executed within at least a part of an operating range of the engine, is provided. The device includes a detector configured to detect a parameter related to noise caused by the combustion inside the cylinder, and a combustion controller configured to control the combustion inside the cylinder during the partial compression-ignition combustion based on a combustion noise index value identified by the detected parameter of the detector and a given reference value defined as an upper limit of the combustion noise index value, the reference value increasing as a vehicle speed increases.
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公开(公告)号：US20190120053A1
公开(公告)日：2019-04-25
申请号：US16139265
申请日：2018-09-24
申请人： ROLLS-ROYCE plc
CPC分类号： F01B17/025 , F01K25/06 , F01L1/38 , F02B1/10 , F02B1/14 , F02B75/02 , F02B2075/028 , F02M23/00 , F02M25/00 , F02M31/00 , F02M2023/008 , F02M2700/43
摘要： A method of controlling a reciprocating internal combustion engine comprising: a cylinder defining a cavity having a first end and a second end; and a piston moveable within the cavity of the cylinder between the first end and the second end, the method comprising: receiving at least a first signal; determining a quantity of liquid air to be injected using at least the received first signal; controlling injection of the determined quantity of liquid air into the first end of the cavity at a first time when the piston is closer to the first end than the second end.
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公开(公告)号：US20190078510A1
公开(公告)日：2019-03-14
申请号：US15702597
申请日：2017-09-12
申请人： James T. Ganley
发明人： James T. Ganley
CPC分类号： F02B41/00 , F02B1/10 , F02B75/02 , F02B2075/025 , F02D19/021 , F02D41/0002 , F02D41/0027 , F02D41/38 , F02D2041/389 , F02D2400/04 , F02M21/0206
摘要： A two-stroke internal combustion engine achieves high performance levels by using an innovatively timed sequence of injecting and igniting fuel and oxidant. The operating cycle of the engine does not utilize a compression process. This permits the injection of fuel and oxidant to be coordinated with the initiation of the combustion process in such a way that the engine achieves high efficiency and provides high torque, while at the same time producing low thermal loading of engine components and low levels of engine noise and vibration.
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