公开(公告)号：US20030005898A1

公开(公告)日：2003-01-09

申请号：US10183632

申请日：2002-06-28

Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI

Inventor： Laura Gianolio ,  Lorentino Macor ,  Andrea Pecori ,  Costantino Vafidis ,  Francesco Vattaneo

IPC: F01L009/02

CPC classification number: F02D13/0253 ,  F01L1/08 ,  F01L1/26 ,  F01L1/267 ,  F01L9/021 ,  F01L9/025 ,  F01L13/0005 ,  F01L2001/0535 ,  F01L2001/0537 ,  F01L2001/34446 ,  F01L2800/00 ,  F02B1/12 ,  F02B3/06 ,  F02B17/005 ,  F02B23/101 ,  F02B31/02 ,  F02B31/085 ,  F02B47/08 ,  F02B75/20 ,  F02B2275/18 ,  F02B2275/20 ,  F02B2275/32 ,  F02D13/0207 ,  F02D13/0257 ,  F02D13/0269 ,  F02D13/0273 ,  F02D13/0276 ,  F02D13/04 ,  F02D15/04 ,  F02D41/006 ,  F02D41/3035 ,  F02D2013/0292 ,  F02D2041/001 ,  F02F1/4214 ,  F02F2001/247 ,  F02M26/01 ,  Y02T10/142 ,  Y02T10/146 ,  Y02T10/16 ,  Y02T10/47

Abstract: In a Diesel engine with variably actuated valves, the cam controlling each inlet valve is shaped to provoke the opening of the respective inlet valve during the engine's normal exhaust phase and thus realize exhaust gas recirculation within the engine, due to the fact that during the normal exhaust phase, part of the exhaust gas passes from the cylinder into the inlet port, from where it returns to the cylinder during the next induction phase, while part of the exhaust gas that had previously passed into the exhaust port returns to the cylinder during the said induction phase due to the additional opening of the exhaust valve, in consequence of which the exhaust gas charges that return to the cylinder are subjected to further combustion in the next engine cycle.

Abstract translation: 在具有可变致动阀的柴油发动机中，控制每个入口阀的凸轮成形为在发动机正常排气阶段期间引起相应入口阀的开度，从而在发动机内实现排气再循环，这是由于在正常情况下 排气相中的一部分废气从汽缸通入入口，在下一个感应阶段返回到汽缸，同时先前通过排气口的废气的一部分在该排气期间返回到汽缸 由于排气阀的附加打开引起的所述感应阶段，由此，返回到气缸的废气装料在下一个发动机循环中被进一步燃烧。