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31.发明申请公开(公告)号：US20190136790A1
公开(公告)日：2019-05-09
申请号：US16241161
申请日：2019-01-07
发明人： Leslie Bromberg , Daniel R. Cohn
摘要： An optimized port plus direct injection (PFI+DI) fueling system for reducing DI-generated particulates from a spark ignition gasoline engine is disclosed. It uses information from a computational model that includes piston wetting. Means for DI particulate reduction include control of DI timing and duration as a function of various parameters. Illustrative computational results for decreasing particulates in various drive cycles are presented. These calculations illustrate large potential particulate reductions (e.g. 95%) that can be obtained relative to DI operation alone. The optimized PFI+DI system could provide DI generated particulate reduction, efficiency and cost advantages relative to operation of a DI alone engine with a gasoline particulate filter (GPF). Alternatively, it could be used in combination with a GPF to ease GPF operation requirements and provide additional particulate reduction. Techniques for reducing piston wetting generation of particles from use of DI alone are also described.
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32.发明授权公开(公告)号：US10227945B2
公开(公告)日：2019-03-12
申请号：US15713997
申请日：2017-09-25
发明人： Leslie Bromberg , Daniel R. Cohn
IPC分类号： F02D41/00 , F02D41/40 , F01N3/035 , F02D37/02 , F02D41/14 , F02D41/24 , F02D41/30 , F02D35/02 , F02D41/38
摘要： An optimized port plus direct injection (PFI+DI) fueling system for reducing DI-generated particulates from a spark ignition gasoline engine is disclosed. It uses information from a computational model that includes piston wetting. Means for DI particulate reduction include control of DI timing and duration as a function of various parameters. Illustrative computational results for decreasing particulates in various drive cycles are presented. These calculations illustrate large potential particulate reductions (e.g. 95%) that can be obtained relative to DI operation alone. The optimized PFI+DI system could provide DI generated particulate reduction, efficiency and cost advantages relative to operation of a DI alone engine with a gasoline particulate filter (GPF). Alternatively, it could be used in combination with a GPF to ease GPF operation requirements and provide additional particulate reduction. Techniques for reducing piston wetting generation of particles from use of DI alone are also described.
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33.发明授权公开(公告)号：US09976496B2
公开(公告)日：2018-05-22
申请号：US15214533
申请日：2016-07-20
发明人： Daniel R. Cohn , Leslie Bromberg
IPC分类号： F02D41/30 , F02D37/02 , F02D41/06 , F02P5/152 , F02D41/00 , F02D41/34 , F02P5/145 , F02M69/04 , F02D19/08 , F02D13/02 , F02D13/06 , F02B75/12 , F02D41/04 , F02D41/10 , F02D41/38
CPC分类号： F02D37/02 , F02B2075/125 , F02D13/0215 , F02D13/06 , F02D19/084 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D41/047 , F02D41/064 , F02D41/10 , F02D41/1466 , F02D41/3094 , F02D41/345 , F02D41/3836 , F02D2041/001 , F02D2041/389 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1521 , Y02T10/123 , Y02T10/144 , Y02T10/36 , Y02T10/46
摘要： The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.
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公开(公告)号：US20170363035A1
公开(公告)日：2017-12-21
申请号：US15691895
申请日：2017-08-31
发明人： Daniel R. Cohn , Leslie Bromberg
IPC分类号： F02D41/30 , F02D35/02 , F02D37/02 , F02D41/00 , F02M69/04 , F02D41/04 , F02P5/152 , F02P5/15 , F02D41/06 , F02D13/02 , F02P5/145
CPC分类号： F02D41/3094 , F02D13/0215 , F02D13/0242 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/047 , F02D41/064 , F02D41/3023 , F02D2013/0292 , F02D2041/001 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/46
摘要： Additional approaches for the reduction of particulate emissions in gasoline engines using optimized port+direct injection are described. These embodiments include control of the amount of directly injected fuel so as to avoid a threshold increase in particulates due to piston wetting and reduction of cold start emissions by use of air preheating using variable valve timing.
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35.发明授权公开(公告)号：US09441570B2
公开(公告)日：2016-09-13
申请号：US14840688
申请日：2015-08-31
发明人： Daniel R. Cohn , Leslie Bromberg
IPC分类号： F02D41/30 , F02M69/04 , F02D13/02 , F02D41/06 , F02P5/145 , F02P5/15 , F02P5/152 , F02D37/02 , F02D41/04 , F02D35/02 , F02D41/00
CPC分类号： F02D41/3094 , F02D13/0215 , F02D13/0242 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/047 , F02D41/064 , F02D41/3023 , F02D2013/0292 , F02D2041/001 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/46
摘要： Additional approaches for the reduction of particulate emissions in gasoline engines using optimized port+direct injection are described. These embodiments include control of the amount of directly injected fuel so as to avoid a threshold increase in particulates due to piston wetting and reduction of cold start emissions by use of air preheating using variable valve timing.
摘要翻译： 描述了使用优化的端口+直接喷射来减少汽油发动机中的颗粒物排放的附加方法。 这些实施例包括直接喷射燃料量的控制，以避免使用可变气门正时通过使用空气预热而由于活塞润湿和减少冷启动排放造成的微粒阈值增加。
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36.发明申请公开(公告)号：US20150369162A1
公开(公告)日：2015-12-24
申请号：US14840688
申请日：2015-08-31
发明人： Daniel R. Cohn , Leslie Bromberg
CPC分类号： F02D41/3094 , F02D13/0215 , F02D13/0242 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/047 , F02D41/064 , F02D41/3023 , F02D2013/0292 , F02D2041/001 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/46
摘要： Additional approaches for the reduction of particulate emissions in gasoline engines using optimized port+direct injection are described. These embodiments include control of the amount of directly injected fuel so as to avoid a threshold increase in particulates due to piston wetting and reduction of cold start emissions by use of air preheating using variable valve timing.
摘要翻译： 描述了使用优化的端口+直接喷射来减少汽油发动机中的颗粒物排放的附加方法。 这些实施例包括直接喷射燃料量的控制，以避免使用可变气门正时通过使用空气预热而由于活塞润湿和减少冷启动排放造成的微粒阈值增加。
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公开(公告)号：US08707938B2
公开(公告)日：2014-04-29
申请号：US13956782
申请日：2013-08-01
发明人： Leslie Bromberg , Daniel R. Cohn
CPC分类号： F02D35/027 , F02B17/00 , F02B17/005 , F02B2075/125 , F02D13/0215 , F02D15/00 , F02D19/0655 , F02D19/0665 , F02D19/0689 , F02D19/0692 , F02D19/081 , F02D19/12 , F02D31/001 , F02D37/02 , F02D41/0007 , F02D41/0025 , F02D41/3094 , F02D45/00 , F02M25/0228 , F02M37/0088 , F02P5/152 , Y02T10/12 , Y02T10/123 , Y02T10/36 , Y02T10/46 , Y10T477/688
摘要： A number of systems and methods are disclosed which increase the replenishment interval for anti-knock fluid. This is especially important during activities which require a large amount of anti-knock fluid, such as towing. In some embodiments, the systems and methods are used to reduce anti-knock fluid consumption. For example, changes to engine operation, such as rich operation, spark retarding, upspeeding, and variable valve timing, all serve to reduce the amount of anti-knock fluid required to eliminate knocking. In other embodiments, the composition of the anti-knock fluid is modified, such as by using a higher octane fluid, or through the addition of water to the anti-knock fluid. In other embodiments, the replenishment interval is increased through a larger anti-knock fluid storage capacity. In one embodiment, a three tank system is used where the third tank can be used to store gasoline or anti-knock fluid, depending on the driving conditions.
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