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1. 发明授权

US06712030B2 Internal-combustion engine with hydraulic system for variable operation of the engine valves 有权
标题翻译：具有液压系统的内燃机，用于发动机气门的可变运行
公开(公告)号：US06712030B2
公开(公告)日：2004-03-30
申请号：US10102922
申请日：2002-03-22
申请人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
发明人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
IPC分类号： F01L902
CPC分类号： F01L9/025 , F01L9/021 , F01L2001/34446
摘要： 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.
摘要翻译：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。

2. 发明授权

US06530350B2 Internal-combustion engine with hydraulic system for variable operation of the valves and means for compensating variations in volume of the hydraulic fluid 有权
公开(公告)号：US06530350B2
公开(公告)日：2003-03-11
申请号：US10102727
申请日：2002-03-22
申请人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
发明人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
IPC分类号： F01L902
CPC分类号： F01L9/021 , F01L9/025 , F01L2001/34446 , F01L2760/001
摘要： 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.

3. 发明授权

US06553950B2 Internal-combustion engine with variable-operation valves and auxiliary hydraulic tappet 有权
公开(公告)号：US06553950B2
公开(公告)日：2003-04-29
申请号：US10102753
申请日：2002-03-22
申请人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
发明人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
IPC分类号： F01L902
CPC分类号： F01L9/023 , F01L1/053 , F01L2001/34446
摘要： 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.

4. 发明授权

US06520130B2 Internal-combustion engine with hydraulic system for variable operation of the valves and with means for bleeding the hydraulic system 有权
公开(公告)号：US06520130B2
公开(公告)日：2003-02-18
申请号：US10102924
申请日：2002-03-22
申请人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
发明人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
IPC分类号： F01L902
CPC分类号： F01L9/025 , F01L9/021 , F01L2001/34446 , F01L2760/001
摘要： 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.

5. 发明授权

US06520129B2 Internal combustion engine with an hydraulic system for the variable driving of valves and a double-piston tappet 有权
公开(公告)号：US06520129B2
公开(公告)日：2003-02-18
申请号：US10102750
申请日：2002-03-22
申请人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
发明人： Stefano Chiappini , Andrea Pecori , Francesco Vattaneo
IPC分类号： F01L902
CPC分类号： F01L9/021 , F01L9/02 , F01L2001/34446
摘要： In an internal combustion engine comprising an hydraulic system for the variable driving of valves, one tappet comprises two separate piston sections that are connected to two distinct pressure chambers, which control the driving pistons of two separate valves of the same engine cylinder.

6. 发明申请

US20060054120A1 Internal combustion engine having valves with variable actuation each provided with a hydraulic tappet at the outside of the associated actuating unit 有权
标题翻译：具有可变致动阀的内燃机在相关联的致动单元的外部设有液压挺杆
公开(公告)号：US20060054120A1
公开(公告)日：2006-03-16
申请号：US11154568
申请日：2005-06-17
申请人： Gianluca Canino , Stefano Chiappini , Francesco Vattaneo
发明人： Gianluca Canino , Stefano Chiappini , Francesco Vattaneo
IPC分类号： F01L1/34
CPC分类号： F01L9/025 , F01L1/25 , F01L2001/34446
摘要： In an internal combustion engine with variable actuation valves, each variable actuation valve is actuated by an actuator assembly including an actuating piston slidably mounted in a guide bushing. Between the actuating piston and the stem of the respective valve is interposed an auxiliary hydraulic tappet comprising a first bushing and a second bushing positioned inside the first bushing in such a way as to define a first chamber between the second bushing and the actuating piston, and a second chamber between the two bushings of the hydraulic tappet. The first chamber is fed a pressurised chamber of the engine lubrication loop. A check valve controls a communication between the two chambers of the tappet, to allow the passage of fluid in the direction of the second chamber. The first bushing of the auxiliary hydraulic tappet is positioned outside the guide bushing of the actuating piston, so that said bushing can be dimensioned with a relatively small diameter, regardless of the outer diameter of the auxiliary hydraulic tappet.
摘要翻译：在具有可变致动阀的内燃机中，每个可变致动阀由包括可滑动地安装在引导衬套中的致动活塞的致动器组件致动。在致动活塞和相应阀的杆之间插入有辅助液压挺杆，其包括第一衬套和位于第一衬套内部的第二衬套，以便限定第二衬套和致动活塞之间的第一室，以及在液压挺杆的两个衬套之间的第二室。第一个室被供给发动机润滑回路的加压室。止回阀控制挺杆的两个腔室之间的连通，以允许流体沿第二腔室的方向通过。辅助液压挺杆的第一衬套位于致动活塞的引导衬套的外侧，使得所述衬套的尺寸可以相对较小的直径，而与辅助液压挺杆的外径无关。

7. 发明授权

US07210438B2 Internal combustion engine having valves with variable actuation each provided with a hydraulic tappet at the outside of the associated actuating unit 有权
标题翻译：具有可变致动阀的内燃机在相关联的致动单元的外部设有液压挺杆
公开(公告)号：US07210438B2
公开(公告)日：2007-05-01
申请号：US11154568
申请日：2005-06-17
申请人： Gianluca Canino , Stefano Chiappini , Francesco Vattaneo
发明人： Gianluca Canino , Stefano Chiappini , Francesco Vattaneo
IPC分类号： F01L1/14
CPC分类号： F01L9/025 , F01L1/25 , F01L2001/34446
摘要： In an internal combustion engine with variable actuation valves, each variable actuation valve is actuated by an actuator assembly including an actuating piston slidably mounted in a guide bushing. Between the actuating piston and the stem of the respective valve is interposed an auxiliary hydraulic tappet comprising a first bushing and a second bushing positioned inside the first bushing in such a way as to define a first chamber between the second bushing and the actuating piston, and a second chamber between the two bushings of the hydraulic tappet. The first chamber is fed a pressurized chamber of the engine lubrication loop. A check valve controls a communication between the two chambers of the tappet, to allow the passage of fluid in the direction of the second chamber. The first bushing of the auxiliary hydraulic tappet is positioned outside the guide bushing of the actuating piston, so that said bushing can be dimensioned with a relatively small diameter, regardless of the outer diameter of the auxiliary hydraulic tappet.
摘要翻译：在具有可变致动阀的内燃机中，每个可变致动阀由包括可滑动地安装在引导衬套中的致动活塞的致动器组件致动。在致动活塞和相应阀的杆之间插入有辅助液压挺杆，其包括第一衬套和位于第一衬套内部的第二衬套，以便限定第二衬套和致动活塞之间的第一室，以及在液压挺杆的两个衬套之间的第二室。第一个室被供给发动机润滑回路的加压室。止回阀控制挺杆的两个腔室之间的连通，以允许流体沿第二腔室的方向通过。辅助液压挺杆的第一衬套位于致动活塞的引导衬套的外侧，使得所述衬套的尺寸可以相对较小的直径，而与辅助液压挺杆的外径无关。

8. 发明授权

US06918364B2 Multicylinder engine with valve variable actuation, and an improved valve braking device therefor 有权
标题翻译：具有阀门可变致动的多缸发动机，以及改进的阀门制动装置
公开(公告)号：US06918364B2
公开(公告)日：2005-07-19
申请号：US10259527
申请日：2002-09-30
申请人： Francesco Vattaneo , Stefano Chiappini , Macor Lorentino , Dante Malatto
发明人： Francesco Vattaneo , Stefano Chiappini , Macor Lorentino , Dante Malatto
IPC分类号： F01L13/00 , F01L9/02 , F02D13/02 , F01L1/14
CPC分类号： F01L9/025 , F01L9/02 , F01L9/021 , F01L2001/0537 , F01L2001/34446 , F01L2820/02
摘要： Described herein is a multicylinder internal-combustion engine provided with an electronically controlled hydraulic device for controlling variable actuation of the valves of the engine. The final phase of the movement of closing the intake valves is slowed down by a hydraulic braking device of an improved type.
摘要翻译：本文描述了一种多缸内燃机，其具有用于控制发动机的阀的可变致动的电控液压装置。关闭进气门的运动的最后阶段由改进型液压制动装置减速。

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