公开(公告)号：US20020134328A1

公开(公告)日：2002-09-26

申请号：US10102727

申请日：2002-03-22

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

Inventor： Stefano Chiappini ,  Andrea Pecori ,  Francesco Vattaneo

IPC: F01L009/02 ,  F01L001/34

CPC classification number: F01L9/021 ,  F01L9/025 ,  F01L2001/34446 ,  F01L2760/001

Abstract: In an internal-combustion engine with a hydraulic system for variable operation of the engine valves, there is envisaged at least one supplementary reservoir bled off to the atmosphere, communicating with the low-pressure circuit for compensating for the variations in volume of the hydraulic fluid that derive from the variations in temperature and for thus preventing air bubbles from forming in the circuit.

Abstract translation: 在具有用于可变运行发动机气门的液压系统的内燃机中，设想有至少一个补充储存器排放到大气中，与低压回路连通以补偿液压流体的体积变化 这是因为温度变化导致的，从而防止在电路中形成气泡。

公开(公告)号：US20020134331A1

公开(公告)日：2002-09-26

申请号：US10102922

申请日：2002-03-22

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

Inventor： Stefano Chiappini ,  Andrea Pecori ,  Francesco Vattaneo

IPC: F01L001/34 ,  F01L001/14

CPC classification number: F01L9/025 ,  F01L9/021 ,  F01L2001/34446

Abstract: In an internal-combustion engine with a hydraulic system for variable operation of the valves, the tappet actuated by each cam of the camshaft is slidably mounted in a tubular body which is made of a single piece with a bushing for guiding the valve-actuating piston.

Abstract translation: 在具有用于阀的可变操作的液压系统的内燃机中，由凸轮轴的每个凸轮致动的挺杆可滑动地安装在管状体中，管状体由具有用于引导阀致动活塞的衬套的单件制成 。

公开(公告)号：US20020134330A1

公开(公告)日：2002-09-26

申请号：US10102753

申请日：2002-03-22

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

Inventor： Stefano Chiappini ,  Andrea Pecori ,  Francesco Vattaneo

IPC: F01L001/34

CPC classification number: F01L9/023 ,  F01L1/053 ,  F01L2001/34446

Abstract: In an internal-combustion engine with a hydraulic system for variable operation of the valves, the piston for operating each valve includes an auxiliary hydraulic tappet.

Abstract translation: 在具有用于阀的可变操作的液压系统的内燃机中，用于操作每个阀的活塞包括辅助液压挺杆。

公开(公告)号：US20030154938A1

公开(公告)日：2003-08-21

申请号：US10259450

申请日：2002-09-30

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

Inventor： Francesco Vattaneo ,  Andrea Pecori ,  Lorentino Macor

IPC: F01L009/04 ,  F01L009/02 ,  F01L001/34

CPC classification number: F01L1/143 ,  F01L9/021 ,  F01L2001/34446

Abstract: Described herein is an internal-combustion engine provided with an electro-hydraulic device of an improved type for controlling variable actuation of the valves of the engine.

Abstract translation: 这里描述了一种内燃机，其具有用于控制发动机的阀的可变致动的改进型电动液压装置。

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。

公开(公告)号：US20020134332A1

公开(公告)日：2002-09-26

申请号：US10102924

申请日：2002-03-22

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

Inventor： Stefano Chiappini ,  Andrea Pecori ,  Francesco Vattaneo

IPC: F01L001/34 ,  F01L001/02 ,  F01L001/14

CPC classification number: F01L9/025 ,  F01L9/021 ,  F01L2001/34446 ,  F01L2760/001

Abstract: In an internal-combustion engine with a hydraulic system for variable operation of the valves, associated to the tappet controlled by each cam of the cam shaft is a passage for bleeding the hydraulic system.

Abstract translation: 在具有用于阀的可变操作的液压系统的内燃机中，与由凸轮轴的每个凸轮控制的挺杆相关联的是用于使液压系统流出的通道。