公开(公告)号：US07165529B2

公开(公告)日：2007-01-23

申请号：US11002640

申请日：2004-12-02

申请人： Diana D. Brehob ,  Julia H. Buckland

发明人： Diana D. Brehob ,  Julia H. Buckland

IPC分类号： F02B5/00 ,  F02B5/02

CPC分类号： F02D41/0002 ,  F01L9/04 ,  F01L2800/00 ,  F02D13/0223 ,  F02D13/0253 ,  F02D41/2406 ,  Y02T10/18 ,  Y02T10/42

摘要： A system and method are disclosed for operating an internal combustion engine in which the intake valves are electromechanical valves and the engine has direct fuel injection. By opening the intake valves during the intake stroke when the piston is moving at its maximum speed, the turbulence through the intake valve is enhanced, thereby increasing combustion speed, and hence combustion stability at low torque, low speed operating conditions. Furthermore, if the fuel injection interval occurs when flow of gases through the intake is highest, air-fuel mixing is improved.

摘要翻译： 公开了一种用于操作内燃机的系统和方法，其中进气门是机电阀，并且发动机具有直接燃料喷射。 通过在活塞以其最大速度移动时在进气冲程期间打开进气门，通过进气门的湍流增强，从而提高燃烧速度，从而提高低扭矩，低速运行条件下的燃烧稳定性。 此外，如果在通过进气口的气体流动最高时发生燃料喷射间隔，则提高了空气 - 燃料混合。