-
公开(公告)号：US20150252737A1
公开(公告)日：2015-09-10
申请号：US14639978
申请日：2015-03-05
发明人： Eike Joachim SIXEL , Hannes MARSCHEIDER , Daniel WESTER , Arvind SIVASUBRAMANIAN , Travis BARNES , Chris GALLMEYER , Jedediah A. FREY , Andrew J. NEAVILLE , Robert CALDERWOOD
CPC分类号： F02D19/026 , F02D19/021 , F02D19/025 , F02D19/06 , F02D37/02 , F02D41/0025 , F02D41/221 , F02D41/2467 , F02D2041/2055 , F02D2041/2058 , F02D2041/224 , Y02T10/32 , Y02T10/36 , Y02T10/40
摘要： A method of evaluating operability of a gaseous fuel admission valve of an internal combustion engine is disclosed. The method includes operating the internal combustion engine on gaseous fuel by repeatedly actuating the gaseous fuel admission valve. The method further includes measuring a sequence of temporal developments of an electrical operation parameter respectively associated with an actuation of the gaseous fuel admission valve. The sequence includes a first temporal development to be evaluated and a plurality of temporal developments preceding the first temporal development. The method also includes evaluating operability of the gaseous fuel admission valve based on the first temporal development of the measured sequence and at least one of the plurality of preceding temporal developments of the measured sequence.
摘要翻译： 公开了一种评估内燃机的气体燃料入口阀的可操作性的方法。 该方法包括通过重复地致动气态燃料入口阀来操作气态燃料上的内燃机。 该方法还包括测量分别与气体燃料入口阀的致动相关联的电气操作参数的时间发展顺序。 该序列包括要评估的第一时间发展和第一时间发展之前的多个时间发展。 该方法还包括基于所测量的序列的第一时间发展和所测量的序列的多个先前的时间开发中的至少一个来评估气体燃料准入阀的可操作性。
-
2.发明申请公开(公告)号：US20150241306A1
公开(公告)日：2015-08-27
申请号：US14626788
申请日：2015-02-19
发明人： Eike Joachim SIXEL , Bert RITSCHER , Hendrik HEROLD , Andre SCHMIDT , Stefan HAAS , Arvind SIVASUBRAMANIAN
CPC分类号： G01M15/08 , F02B77/085 , F02D19/0623 , F02D19/0647 , F02D19/0692 , F02D19/105 , F02D35/023 , F02D41/0027 , F02D41/22 , F02D2041/224 , F02D2041/227 , Y02T10/36 , Y02T10/40
摘要： A method of detecting an incomplete combustion, such as a misfire, in an internal combustion engine operating at least partly on a gaseous fuel, includes: receiving pressure data corresponding to a temporal development of a cylinder pressure during a combustion event within a combustion cycle; deriving from the pressure data a combustion energy value of the combustion; determining that the derived combustion energy value is beyond a predetermined combustion-cycle specific combustion threshold level; and associating the combustion event with an incomplete combustion in the combustion cycle.
摘要翻译： 一种在至少部分地基于气体燃料运行的内燃机中检测诸如失火的不完全燃烧的方法包括：在燃烧循环期间的燃烧事件期间接收对应于气缸压力的时间发展的压力数据; 从压力数据得出燃烧的燃烧能量值; 确定所得到的燃烧能量值超过预定的燃烧循环特定燃烧阈值水平; 并且将燃烧事件与燃烧循环中的不完全燃烧相关联。
-
公开(公告)号：US20170204802A1
公开(公告)日：2017-07-20
申请号：US15403373
申请日：2017-01-11
CPC分类号： F02D41/3076 , F02B75/18 , F02D13/06 , F02D17/02 , F02D17/023 , F02D41/0082 , F02D41/0087 , F02D41/062 , F02D41/086 , F02D41/123
摘要： A process of controlling operation in a multi-cylinder engine either during start of operation or low-load conditions is disclosed. The process may include skipping a supply of fuel in a first set of cylinders of the multi-cylinder engine for a pre-defined number of multiple working cycles. The process may further include supplying fuel-air mixture to a second set of cylinders of the multi-cylinder engine for the pre-defined number of multiple working cycles. The process may also include executing combustion of the fuel-air mixture supplied to the second set of cylinders for the pre-defined number of multiple working cycles. In addition the process may include either changing a selection of cylinders included in the first set of cylinders and the second set of cylinders respectively, or switching the supply of fuel, after the pre-defined number of multiple working cycles, from the second set of cylinders to the first set of cylinders.
-
公开(公告)号：US20150226144A1
公开(公告)日：2015-08-13
申请号：US14612320
申请日：2015-02-03
CPC分类号： F02D41/0085 , F02D19/023 , F02D19/025 , F02D35/023 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/0027 , F02D41/1498 , F02D41/401 , F02D2200/025 , F02P5/045 , F02P5/152 , Y02T10/44
摘要： A method for balancing a plurality of cylinders during operation of an internal combustion engine having a plurality of gas admission valves includes operating the internal combustion engine with a first common ignition timing for each of a plurality of cylinders. While operating with the first common ignition timing, a cylinder having an above-average knock level is determined, and an opening duration of the gas admission valve associated with this cylinder is reduced. This is repeated until the knock levels for all cylinders differ from each other by less than a predetermined amount. When the knock levels for all cylinders differ by less than the predetermined amount, the first common ignition timing is advanced to a second ignition timing.
摘要翻译： 在具有多个气体入口阀的内燃机的操作期间平衡多个气缸的方法包括以多个气缸中的每一个的第一公共点火正时操作内燃机。 当在第一公共点火正时操作时，确定具有高于平均爆震水平的气缸，并且减小与该气缸相关联的进气阀的打开持续时间。 重复这一操作，直到所有气缸的敲击水平彼此相差小于预定量。 当所有气缸的爆震等级相差小于预定量时，第一公共点火正时提前到第二点火正时。
-
公开(公告)号：US20160084179A1
公开(公告)日：2016-03-24
申请号：US14852878
申请日：2015-09-14
发明人： Hauke HOLST , Hendrik Johannes LANGE , Eike Joachim SIXEL , Marius WOLFGRAMM , Arvind SIVASUBRAMANIAN
CPC分类号： F02D41/0027 , F02D19/0642 , F02D35/023 , F02D37/02 , F02D41/1475 , F02P9/002 , Y02T10/36
摘要： A method for controlling an internal combustion engine operating on at least partly gaseous fuel is disclosed. The method may include providing a desired burn rate profile corresponding to a desired operation of the internal combustion engine. The method may further include selecting first operating parameters such that an operation of the internal combustion engine with a first gas composition produces a first burn rate profile that corresponds to the desired burn rate profile. The method may also include operating the internal combustion engine with the first operating parameters using a second gas composition. The method may include determining that the second burn rate profile differs from the desired burn rate profile. In addition, the method may include adjusting an operating parameter from among the first operating parameters of the internal combustion engine to approach the desired burn rate profile.
摘要翻译： 公开了一种用于控制在至少部分气态燃料上运行的内燃机的方法。 该方法可以包括提供对应于内燃机的期望操作的期望燃烧速率曲线。 该方法还可以包括选择第一操作参数，使得具有第一气体组合物的内燃机的操作产生对应于期望的燃烧速率曲线的第一燃烧速率曲线。 该方法还可以包括使用第二气体组合物以第一操作参数操作内燃机。 该方法可以包括确定第二燃烧速率曲线与期望的燃烧速率曲线不同。 此外，该方法可以包括从内燃机的第一操作参数中调整操作参数以接近期望的燃烧速率曲线。
-
公开(公告)号：US20150361943A1
公开(公告)日：2015-12-17
申请号：US14734587
申请日：2015-06-09
发明人： Eike Joachim SIXEL , Hauke HOLST
CPC分类号： F02P5/153 , F02D19/024 , F02D19/0647 , F02D19/105 , F02D35/023 , F02D35/028 , F02D41/0027 , F02M21/0278 , G01L23/221 , Y02T10/32 , Y02T10/36 , Y02T10/46
摘要： A method for controlling an engine is disclosed. The method may include receiving a pressure data set of a combustion event. The pressure data set may correspond to a temporal development of a cylinder pressure during the combustion event in a cylinder. The method may also include determining using a controller that the received pressure data set indicates an actual ignition timing within a preset ignition timing window. Further, the method may include deriving an actual combustion duration (D1) of the combustion event from the received pressure data set. The method may also include determining whether the actual combustion duration (D1) is shorter than a preset combustion duration for the cylinder. In addition, the method may include providing a control signal to control an operation of the internal combustion engine when the actual combustion duration is shorter than the preset combustion duration.
摘要翻译： 公开了一种用于控制发动机的方法。 该方法可以包括接收燃烧事件的压力数据集。 压力数据集可以对应于气缸内的燃烧事件期间气缸压力的时间变化。 该方法还可以包括使用控制器确定所接收的压力数据集指示在预设点火正时窗口内的实际点火正时。 此外，该方法可以包括从接收的压力数据集导出燃烧事件的实际燃烧持续时间（D1）。 该方法还可以包括确定实际燃烧持续时间（D1）是否短于气缸的预设燃烧持续时间。 此外，该方法可以包括当实际燃烧持续时间短于预设燃烧持续时间时提供控制信号来控制内燃机的操作。
-
公开(公告)号：US20150252741A1
公开(公告)日：2015-09-10
申请号：US14639982
申请日：2015-03-05
发明人： Eike Joachim SIXEL , Daniel WESTER , Adam STUBBS , Michael SNOPKO
CPC分类号： F02D35/023 , F02D19/0621 , F02D19/0623 , F02D19/0628 , F02D19/0642 , F02D19/0647 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/221 , F02D2041/224 , Y02T10/36
摘要： A method of evaluating operability of a gaseous fuel admission valve of an internal combustion engine is disclosed. The internal combustion engine includes a plurality of cylinders and at least one gaseous fuel admission valve for each cylinder of the plurality of cylinders. The method includes operating the dual fuel internal combustion engine on liquid fuel. The method further includes supplying gaseous fuel to the gaseous fuel admission valves at a pressure above an intake manifold air pressure thereby setting a differential gas pressure across the gaseous fuel admission valves. The method also includes operating the gaseous fuel admission valves to add gaseous fuel to intake air while operating the dual fuel internal combustion engine primarily on liquid fuel. Further, the method includes measuring combustion process parameters for the cylinders. The method also includes evaluating operability of the gaseous fuel admission valves based on the measured combustion process parameters.
摘要翻译： 公开了一种评估内燃机的气体燃料入口阀的可操作性的方法。 所述内燃机包括多个气缸和用于所述多个气缸中的每个气缸的至少一个气体燃料入口阀。 该方法包括在液体燃料上操作双燃料内燃机。 该方法还包括在高于进气歧管空气压力的压力下将气体燃料供应到气体燃料入口阀，从而在气体燃料入口阀上设定差压气体压力。 该方法还包括操作气体燃料入口阀以将气体燃料添加到进气中，同时主要以液体燃料操作双燃料内燃机。 此外，该方法包括测量气缸的燃烧过程参数。 该方法还包括基于所测量的燃烧过程参数评估气体燃料进入阀的可操作性。
-
公开(公告)号：US20170284320A1
公开(公告)日：2017-10-05
申请号：US15509697
申请日：2015-08-10
发明人： Hauke HOLST , Eike Joachim SIXEL
CPC分类号： F02D41/0027 , F02B19/1019 , F02B19/108 , F02B19/1085 , F02B19/12 , F02D19/02 , F02D37/02 , F02D2200/0602 , F02P5/1502 , Y02T10/125 , Y02T10/46
摘要： A method for operating a spark ignited gaseous fuel internal combustion engine is disclosed. The engine may have at least one main combustion chamber and at least one ignition device configured to initiate an ignition event within an ignition region. The method may include supplying pressurized fuel to the ignition region at times between about 30° to about 0° crank angle before the ignition event is initiated by the ignition device for enriching the ignition region with fuel. The method may also include initiating an ignition event in the ignition region for combusting an enriched air/fuel mixture within the ignition region.
-
公开(公告)号：US20170159612A1
公开(公告)日：2017-06-08
申请号：US15369314
申请日：2016-12-05
CPC分类号： F02M23/06 , F02B21/00 , F02D19/023 , F02D19/10 , F02D21/10 , F02D23/00 , F02D33/02 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D41/10 , Y02T10/144 , Y02T10/146 , Y02T10/32 , Y02T10/36
摘要： A method for operating an engine is disclosed. The method may include supplying air from a primary air supply unit to an intake conduit. The method may also include supplying air to the engine from the intake conduit. The method may further include selectively supplying air from a secondary air supply unit to the intake conduit. In addition, the method may include maintaining an air fuel ratio between a first threshold value and a second threshold value during an increase in engine load increase by controlling a supply of air from the secondary supply unit to the intake conduit.
-
公开(公告)号：US20160341147A1
公开(公告)日：2016-11-24
申请号：US15159988
申请日：2016-05-20
发明人： Sascha BURKHARD , Dirk MOOSER , Ingo LANGSCHWAGER , Eike Joachim SIXEL , Kai RUSCHMEYER , Marius WOLFGRAMM , Hendrik Johannes LANGE , Michael STURM
CPC分类号： F02F3/0015 , F02B23/10 , F02B2023/106 , F02D19/10 , F02F3/22 , F02M21/0215 , Y02T10/125 , Y02T10/36
摘要： A piston top structural unit for an internal combustion engine may include a piston crown structure providing a top surface and a peripheral surface, wherein, regarding a center axis of the piston, the top surface is configured to delimit the piston top structural unit axially with respect to a combustion chamber of the internal combustion engine and the peripheral surface is configured to delimit the piston top structural unit radially. The top surface may include a rim surface extending around the center axis, and an inner surface delimiting a piston bowl radially within the peripheral surface. The inner surface may include an area of lowest positions of the piston bowl, a first side wall surface extending essentially along the direction of the center axis from a first border section of the area of the lowest positions to the rim surface, a deflecting bottom surface raising from a second border section of the area of the lowest positions to form an asymmetric piston bowl bottom, and at least one second side wall surface extending essentially along the direction of the center axis from a respective border section of the deflecting bottom surface to the rim surface. The asymmetric shape may allow the generation of a tumble flow of charged air for improving ignition.
摘要翻译： 用于内燃机的活塞顶部结构单元可以包括提供顶表面和外周表面的活塞冠结构，其中，关于活塞的中心轴线，顶表面被构造成将活塞顶部结构单元轴向地限定 到内燃机的燃烧室，并且周面被构造成径向地界定活塞顶部结构单元。 顶表面可以包括围绕中心轴线延伸的边缘表面，以及在周边表面内径向限定活塞碗的内表面。 内表面可以包括活塞碗的最低位置的区域，基本上沿着中心轴线的方向从最低位置的区域的第一边界部分延伸到边缘表面的第一侧壁表面，偏转底表面 从最低位置的区域的第二边界部分升高以形成不对称的活塞碗底部，以及至少一个第二侧壁表面，其至少一个第二侧壁表面基本上沿着中心轴线的方向从偏转的底部表面的相应边界部分延伸到 轮辋表面。 不对称形状可以允许产生用于改善点火的带电空气的翻滚流。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.016 秒)