公开(公告)号：WO2016145570A8

公开(公告)日：2016-12-22

申请号：PCT/CN2015074198

申请日：2015-03-13

Applicant: GM GLOBAL TECH OPERATIONS LLC

Inventor： HE YONGSHENG ,  CLEARY DAVID J ,  NAJT PAUL M ,  LIU JIM ,  SUN DAVID ,  ZHU BIN

IPC: F02D23/02 ,  F01L1/08 ,  F02B37/013 ,  F02D13/02 ,  F02D15/00

CPC classification number: F01L1/08 ,  F01L1/185 ,  F01L9/04 ,  F01L13/0063 ,  F01L2105/00 ,  F02B37/04 ,  F02D13/02 ,  F02D23/02 ,  Y02T10/144 ,  Y02T10/18

Abstract: An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head mounted to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides a constant peak lift of the intake valve over an angle of rotation of the crankshaft that is at least 5 degrees, i.e., an extended dwell at peak lift. A multi-stage boosting system having first and second gas compressors is selectively controlled to pressurize air that is received from the ambient for delivery to the cylinder. A vehicle having such an engine is also disclosed.

Abstract translation: 内燃机包括限定气缸的缸体和安装到气缸体的气缸盖。 往复式活塞设置在气缸内部，用于以至少10:1的几何压缩比压缩空气和燃料混合物。 曲轴布置在气缸体中并由活塞旋转。 进气阀可操作地连接到气缸盖，并且控制空气输送到气缸以在其中燃烧。 一种机构提供进气阀在曲轴的旋转角度上至少为5度的恒定峰值升程，即在峰值提升时的延伸停留。 选择性地控制具有第一和第二气体压缩机的多级升压系统以对从环境接收的空气进行加压以输送到气缸。 还公开了具有这种发动机的车辆。