公开(公告)号：EP3236043A4

公开(公告)日：2018-01-24

申请号：EP16735114

申请日：2016-01-12

申请人： MITSUBISHI HEAVY IND LTD

发明人： HOTTA KAZURO ,  FURUKAWA YUTA ,  OGURA KAZUO

IPC分类号： F02B37/013 ,  F02B37/00 ,  F02B37/007

CPC分类号： F02B37/013 ,  F02B37/001 ,  F02B37/004 ,  F02B37/007 ,  Y02T10/144

摘要： A engine system (1) is provided with: a plurality of cylinder groups (10,20) which burn a gas mixture and discharge an exhaust gas; a plurality of high-pressure stage superchargers (11, 21) each having high-pressure stage turbines (13, 23) driven by the exhaust gas from the corresponding cylinder group and high-pressure stage compressors (14, 24) rotated by driving of the high-pressure stage turbines and configured to compress a gas supplied to the corresponding cylinder group; and a plurality of low-pressure stage superchargers (12,22) having a low-pressure stage turbine (15) driven by an exhaust gas discharged from the high-pressure stage turbine (13) of the high-pressure supercharger (11) which is any one of the plurality of high-pressure stage superchargers, and a low-pressure stage compressor (16) rotated by driving of the low-pressure stage turbine (15) and configured to compress a gas supplied to the high-pressure stage compressor (24) of the high-pressure stage supercharger (21) other than the one high-pressure stage supercharger (11).

公开(公告)号：EP2940281A4

公开(公告)日：2015-11-04

申请号：EP13875482

申请日：2013-02-20

申请人： MITSUBISHI HEAVY IND LTD

发明人： FURUKAWA YUTA ,  OGURA KAZUO

IPC分类号： F02F1/24

CPC分类号： F02F1/4285 ,  F01L1/26 ,  F01L3/06 ,  F02F1/42 ,  Y02T10/146

摘要： A cylinder head includes a cylinder head body provided with intake and exhaust ports opened toward a combustion chamber and capable of being closed by valves, the intake and exhaust ports being separated from each other in a circumferential direction around a cylinder central axis. An opening section of at least one of the intake and exhaust ports facing the combustion chamber is provided with a seat surface centered on a valve axis and a tapered surface disposed closer to the combustion chamber than the seat surface, the tapered surface being gradually increased in diameter as close to the combustion chamber. A central axis of the tapered surface is disposed eccentrically from the valve axis toward the cylinder central axis.

摘要翻译： 气缸盖包括气缸盖体，其具有朝向燃烧室开口并且能够被阀关闭的进气和排气口，所述进气和排气口在围绕气缸中心轴线的圆周方向上彼此分离。 面向燃烧室的进气排气口和排气口中的至少一个的开口部设置有以阀座为中心的座表面和比座面更靠近燃烧室设置的锥形表面，锥形表面逐渐增加 直径接近燃烧室。 锥形表面的中心轴线从阀轴线朝向气缸中心轴偏心设置。