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公开(公告)号：US20150275820A1
公开(公告)日：2015-10-01
申请号：US14666489
申请日：2015-03-24
申请人： Cummins Inc.
发明人： Jason W. Mackey , David M. Barnes
CPC分类号： F02F3/003 , F02B3/06 , F02B23/0657 , F02B23/0672 , F02B23/0675 , F02F2003/0061 , F02M61/14 , Y02T10/125
摘要： A diesel engine includes a cylinder block having a cylinder cavity defined therein. A cylinder head is coupled to the cylinder block and includes a lower semi-hemispherical surface defined thereon that defines an upper boundary of a combustion chamber. The engine includes a piston slideably disposed within the cylinder cavity that includes a piston crown having an upper surface configured to define a first portion of a lower boundary of the combustion chamber. The upper surface of the piston crown includes an axi-symmetric semi-hemispherical shape configured to correspond to the lower semi-hemispherical surface of the cylinder head.
摘要翻译： 柴油发动机包括其中限定有气缸腔的气缸体。 气缸盖联接到气缸体并且包括限定在燃烧室的上边界上的下半半球表面。 发动机包括可滑动地设置在气缸腔内的活塞，其包括活塞冠部，所述活塞冠部具有被配置为限定燃烧室的下边界的第一部分的上表面。 活塞冠的上表面包括被配置为对应于气缸盖的下半半球表面的轴对称半半球形状。
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公开(公告)号：US11454180B1
公开(公告)日：2022-09-27
申请号：US17350611
申请日：2021-06-17
申请人： Cummins Inc.
IPC分类号： F02D41/00 , F02M26/22 , F02M26/17 , F02M26/14 , F02B37/24 , F01N13/10 , F02M35/10 , F02M26/38 , F02M26/05 , F02M26/42 , F02M26/09 , F02M26/25
摘要： A system and method of exhaust gas recirculation (EGR) in an internal combustion engine are provided. The EGR system includes a first EGR flow path and a second EGR flow path independent of the first EGR flow path that are each configured to recirculate high pressure exhaust from the exhaust system back to the engine intake system. The system includes a controller in operable communication with the EGR system configured to selectively control an amount of EGR flow through at least one of the first and second EGR flow paths.
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公开(公告)号：US20170089248A1
公开(公告)日：2017-03-30
申请号：US15277823
申请日：2016-09-27
申请人： Cummins Inc.
发明人： Andrea M. Evans , Michael J. Ruth , David M. Barnes , Jason W. Mackey , Krishna Pradeep Chilumukuru , Rick Vaughan Lewis, JR.
CPC分类号： F01N13/009 , F01N3/021 , F01N3/106 , F01N3/2066 , F01N13/107 , F01N13/1805 , F01N2340/02 , F01N2340/04 , F02B75/22 , Y02A50/2325 , Y02T10/24
摘要： An apparatus includes an internal combustion engine having a plurality of cylinders allocated between a first bank having a first cylinder head and a second bank having a second cylinder head. A medial space is defined between the first bank and the second bank. An exhaust system is in fluid receiving communication with the internal combustion engine and in fluid providing communication with the atmosphere. The exhaust system includes an aftertreatment system that is disposed at least in part at the medial space between the first bank and the second bank of the internal combustion engine.
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公开(公告)号：US09915222B2
公开(公告)日：2018-03-13
申请号：US14666489
申请日：2015-03-24
申请人： Cummins Inc.
发明人： Jason W. Mackey , David M. Barnes
CPC分类号： F02F3/003 , F02B3/06 , F02B23/0657 , F02B23/0672 , F02B23/0675 , F02F2003/0061 , F02M61/14 , Y02T10/125
摘要： A diesel engine includes a cylinder block having a cylinder cavity defined therein. A cylinder head is coupled to the cylinder block and includes a lower semi-hemispherical surface defined thereon that defines an upper boundary of a combustion chamber. The engine includes a piston slideably disposed within the cylinder cavity that includes a piston crown having an upper surface configured to define a first portion of a lower boundary of the combustion chamber. The upper surface of the piston crown includes an axi-symmetric semi-hemispherical shape configured to correspond to the lower semi-hemispherical surface of the cylinder head.
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