公开(公告)号：US07124746B2

公开(公告)日：2006-10-24

申请号：US10196645

申请日：2002-07-16

申请人： Douglas S. Brocco ,  Dana R. Coldren ,  Daniel R. Ibrahim ,  Berfan K. Kochgiri

发明人： Douglas S. Brocco ,  Dana R. Coldren ,  Daniel R. Ibrahim ,  Berfan K. Kochgiri

IPC分类号： F02M37/04

CPC分类号： F02M63/0068 ,  F02M45/12 ,  F02M47/06 ,  F02M63/0007 ,  F02M63/004 ,  F02M63/0045 ,  F02M63/0225 ,  F02M2200/21

摘要： Controlling fuel injectors to create varying injection rates and injection rate shapes typically involves using multiple control valves to control fuel pressure and check valve opening pressure independently. The fuel injector of this application uses a single control valve positioned between a fuel supply passage and a tip supply passage. The control valve has at least three positions. In a second position allowing a first maximum fuel injection rate and allowing a second maximum fuel injection rate in a third position.

摘要翻译： 控制燃料喷射器以产生变化的喷射速率和喷射速率形状通常涉及使用多个控制阀以独立地控制燃料压力和单独的阀门打开压力。 该应用的燃料喷射器使用位于燃料供给通道和末端供给通道之间的单个控制阀。 控制阀具有至少三个位置。 在第二位置允许第一最大燃料喷射速率并允许在第三位置的第二最大燃料喷射速率。

公开(公告)号：US06959699B2

公开(公告)日：2005-11-01

申请号：US10700182

申请日：2003-11-03

申请人： Ronald D. Shinogle ,  Berfan K. Kochgiri ,  Mark S. Cavanagh

发明人： Ronald D. Shinogle ,  Berfan K. Kochgiri ,  Mark S. Cavanagh

IPC分类号： F02B1/12 ,  F02M47/02 ,  F02M57/02 ,  F02M67/00 ,  F02M67/04 ,  F02M67/12 ,  F02M23/00

CPC分类号： F02M67/12 ,  F02B1/12 ,  F02M47/027 ,  F02M57/025 ,  F02M67/005 ,  F02M67/04

摘要： One strategy for reducing undesirable emissions from internal combustion engines relates to finding ways to better mix fuel and air prior to combustion. One such method is commonly referred to as homogenous charge compression ignition (HCCI); however, that strategy is problematic in both controlling ignition timing and avoiding overstressing the engine at higher speeds and loads. The present invention addresses these issues by mixing air and fuel vapor within an injector instead of within the engine cylinder. The air/fuel mixture is then injected into the engine cylinder at some desired timing and over some desired duration. Such a strategy permits for lower emissions due to better mixing of air and fuel, while also permitting control over some aspects of combustion timing and duration not apparently possible with a conventional HCCI strategy. The present invention is generally applicable to all internal combustion engines, but especially applicable to diesel engines.