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1. 发明申请

WO2014020454A1 INTERNAL-COMBUSTION ENGINE HAVING A SYSTEM FOR VARIABLE ACTUATION OF THE INTAKE VALVES, PROVIDED WITH THREE-WAY SOLENOID VALVES, AND METHOD FOR CONTROLLING SAID ENGINE 审中-公开
标题翻译：具有用于可变致动阀的系统的内燃机，具有三路电磁阀，以及用于控制发动机的方法
公开(公告)号：WO2014020454A1
公开(公告)日：2014-02-06
申请号：PCT/IB2013/053383
申请日：2013-04-29
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI
发明人： STUCCHI, Sergio , DE MICHELE, Onofrio , RICCO, Raffaele , GARGANO, Marcello , VATTANEO, Francesco , LEPORE, Domenico
IPC分类号： F01L9/02 , F01L1/26
CPC分类号： F02D43/04 , F01L1/267 , F01L9/025
摘要： An internal-combustion engine with two intake valves (7A, 7B) for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single solenoid valve for each cylinder that controls communication of the pressurized- fluid chamber (C) of the system with an exhaust channel (23). The solenoid valve is a three-way, three-position solenoid valve, comprising an inlet (i) permanently communicating with the pressurized-fluid chamber and with the hydraulic actuator of an intake valve (7B), and two outlets (u1, u2) communicating, respectively, with the actuator of the other intake valve (7A) and with said exhaust channel. The solenoid valve has a first position (P1), in which the inlet communicates with both of the outlets, a second position (P2), in which the inlet communicates only with the aforesaid outlet (u1) connected to the actuator of an intake valve (7A) and does not communicate, instead, with the outlet (u2) connected to the exhaust channel (23), and a third position (P3), in which the inlet (i) does not communicate with any of the two outlets (u1, u2). There is envisaged an operating mode in which the solenoid valve is brought into said second position (P2) in an active phase of the tappet in which the tappet (15) tends to bring about opening of the second intake valve (7A) so that said second intake valve (7A) opens. The solenoid valve (24) is then brought into said third position (P3) when the aforesaid active phase of the tappet is still in progress, so that the hydraulic actuator of the second intake valve (7A) remains isolated and the second intake valve (7A) remains blocked in the open position in which it is, even when the tappet (15) no longer tends to keep it open.
摘要翻译：具有用于每个气缸的两个进气门（7A，7B）的内燃机设置有用于可变致动进气门的系统，包括用于控制加压流体室（C）的连通的每个气缸的单个电磁阀，具有排气通道（23）的系统。电磁阀是三通三位电磁阀，包括与加压流体室和进气阀（7B）的液压致动器永久连通的入口（i）和两个出口（u1，u2）分别与另一个进气门（7A）的致动器和所述排气通道连通。电磁阀具有第一位置（P1），其中入口与两个出口连通，第二位置（P2），其中入口仅与连接到进气阀的致动器的前述出口（u1）连通（7A），并且不与连接到排气通道（23）的出口（u2）通信，并且第三位置（P3），其中入口（i）不与两个出口中的任一个连通 u1，u2）。设想了一种操作模式，其中电磁阀在挺杆的活动阶段进入所述第二位置（P2），其中挺杆（15）倾向于使第二进气门（7A）打开，使得所述第二进气门（7A）打开。当上述挺杆的活动阶段仍在进行中时，电磁阀（24）进入所述第三位置（P3），使得第二进气门（7A）的液压致动器保持隔离，并且第二进气门即使当挺杆（15）不再趋于保持打开状态时，其仍然在其打开位置被阻塞。

2. 发明申请

WO2010076645A1 HIGH OPERATION REPEATABILITY AND STABILITY FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的高操作重复性和稳定性燃油喷射系统
公开(公告)号：WO2010076645A1
公开(公告)日：2010-07-08
申请号：PCT/IB2009/007907
申请日：2009-12-29
申请人： C.R.F. Società Consortile per Azioni , STUCCHI, Sergio , DE MICHELE, Onofrio , RICCO, Raffaele , LEPORE, Domenico , ALTAMURA, Chiara , GARGANO, Marcello
发明人： STUCCHI, Sergio , DE MICHELE, Onofrio , RICCO, Raffaele , LEPORE, Domenico , ALTAMURA, Chiara , GARGANO, Marcello
IPC分类号： F02D41/20 , F02D41/40 , F02M63/00
CPC分类号： F02M47/027 , F02D41/20 , F02D41/403 , F02M45/08 , F02M63/0024 , F02M63/004 , F02M63/007 , F02M63/0075 , F02M63/008 , F02M2200/306 , F02M2547/003
摘要： A fuel injection system for an internal combustion engine, comprising: at least one fuel electroinjector; and one electronic control unit designed to supply the fuel electroinjector, in a fuel injection phase in an engine cylinder, with at least a first electrical command to perform a pilot fuel injection, and a second electrical command to perform a main fuel injection. The first and second electrical commands are separated in time by an electrical dwell time such that the main fuel injection starts without interruption with respect to the pilot fuel injection. The electrical dwell time between the first and second electrical commands belongs to an electrical dwell time range in which the total fuel amount injected in the pilot and main fuel injections in a fuel injection phase in an engine cylinder is substantially constant.
摘要翻译：一种用于内燃机的燃料喷射系统，包括：至少一个燃料电喷射器; 以及一个电子控制单元，其设计成在发动机气缸中的燃料喷射阶段中至少提供第一电气指令以执行先导燃料喷射，以及执行主燃料喷射的第二电气命令。第一和第二电命令在时间上被电停留时间分开，使得主燃料喷射相对于引燃燃料喷射而不间断地开始。第一和第二电气指令之间的电停留时间属于电停留时间范围，其中在发动机气缸中的燃料喷射阶段中在先导和主燃料喷射的总燃料量基本上恒定。

3. 发明申请

WO2012004368A1 FUEL-INJECTION SYSTEM FOR AN INTERNAL-COMBUSTION ENGINE 审中-公开
标题翻译：内燃机燃油喷射系统
公开(公告)号：WO2012004368A1
公开(公告)日：2012-01-12
申请号：PCT/EP2011/061558
申请日：2011-07-07
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI , STUCCHI, Sergio , RICCO, Raffaele , DE MICHELE, Onofrio , GARGANO, Marcello
发明人： STUCCHI, Sergio , RICCO, Raffaele , DE MICHELE, Onofrio , GARGANO, Marcello
IPC分类号： F02D41/40 , F02M45/08 , F02M51/06 , F02D41/20
CPC分类号： F02M69/04 , F02D41/20 , F02D41/2096 , F02D41/402 , F02D2041/389 , F02M45/08 , F02M47/027 , F02M63/0015 , F02M63/0078 , Y02T10/44
摘要： A fuel-injection system (2) for an internal-combustion engine has at least one fuel injector (1) with a fuel-metering servo valve (9) for controlling the discharge of fuel from a metering chamber (12); the fuel pressure in the metering chamber (12) controls an open/close needle (7) for carrying out fuel injections into a cylinder; an electronic control unit (11) issues two electrical commands (S1, S2) separated by an electrical dwell time (DT), one for carrying out a pilot injection (P) and one for carrying out a main injection (M), such that the main injection (M) starts before the pilot injection (P) ends, while the open/close needle (7) remains at a lift value in which the fuel flow rate is negligible; in particular, the second electrical command (S2) is issued during a rebound phase (T) of an open/close element (15) of the fuel-metering servo valve (9).
摘要翻译：用于内燃机的燃料喷射系统（2）具有至少一个燃料喷射器（1），其具有用于控制来自计量室（12）的燃料排出的燃料计量伺服阀（9）。计量室（12）中的燃料压力控制用于对气缸进行燃料喷射的打开/关闭针（7）电子控制单元（11）发出由电停留时间（DT）分开的两个电命令（S1，S2），一个用于执行先导喷射（P），一个用于执行主喷射（M），以使得主喷射（M）在先导喷射（P）结束之前开始，而打开/关闭针（7）保持在燃油流量可忽略的升程值; 特别地，在燃料计量伺服阀（9）的打开/关闭元件（15）的回弹阶段（T）期间发出第二电气指令（S2）。

4. 发明申请

WO2022130045A1 INTERNAL COMBUSTION ENGINE WITH FAST COMBUSTION, AND METHOD FOR CONTROLLING THE ENGINE 审中-公开
公开(公告)号：WO2022130045A1
公开(公告)日：2022-06-23
申请号：PCT/IB2021/059496
申请日：2021-10-15
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI
发明人： RICCO, Raffaele , STUCCHI, Sergio , GARGANO, Marcello , MAZZARELLA, Carlo , LEPORE, Domenico
IPC分类号： F01L9/11 , F01L9/14 , F01L13/00 , F02D41/00 , F02D13/02 , F02B27/02 , F02B31/08
摘要： In an internal combustion engine provided with an electro-hydraulic system for variable actuation of the intake valves of the engine, each cylinder has two intake valves (VT, VS), associated with two intake conduits. A first intake conduit (4T) is configured so as to generate, within the cylinder, a main tumble motion, a cross-tumble motion and a swirl motion of the airflow. A second intake conduit (4S) has a scroll-type configuration, so as to generate a swirl motion of the airflow within the cylinder in a direction opposite to that of the swirl motion induced by the first intake conduit (4T). An electronic controller (25) is configured to partially or entirely open the intake valve (VT) associated to the first intake conduit in a condition of reduced operation of the engine, below a predetermined engine load and/or below a predetermined engine rotational speed, and to always open both the intake valves (VT, VS) in the remaining conditions of operation of the engine.

5. 发明申请

WO2023089464A1 MULTI-CYLINDER INTERNAL COMBUSTION ENGINE, WITH CYLINDERS EQUIPPED WITH INTAKE VALVE VARIABLE ACTUATION SYSTEMS HAVING HYDRAULIC CIRCUITS WHICH CROSS EACH OTHER 审中-公开
公开(公告)号：WO2023089464A1
公开(公告)日：2023-05-25
申请号：PCT/IB2022/060915
申请日：2022-11-14
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI
发明人： RICCO, Raffaele , STUCCHI, Sergio , GARGANO, Marcello , DE MICHELE, Onofrio , ALTAMURA, Chiara
IPC分类号： F01L1/26 , F01L9/14 , F01L13/00 , F01L1/344
摘要： An internal-combustion engine has a plurality of cylinders each provided with two intake valves (V1, V2) that are driven by respective pumping pistons (16) operatively associated to the cams (CAM 1, CAM 2, CAM 3, CAM 4) of a camshaft (11), by means of respective hydraulic circuits. The hydraulic circuit associated to each pumping piston (16) and to the respective cam (CAM 1, CAM 2, CAM 3, CAM 4) has its pressure chamber (C) communicating with hydraulic actuators (21) of two intake valves (V1, V2) associated to two different cylinders (CYL1, CYL 2, CYL 3, CYL 4) of the engine, so that the two intake valves (V1, V2) of each cylinder (CYL1, CYL 2, CYL 3, CYL 4) are controlled, via two different hydraulic circuits, by cams associated to two different cylinders. Each cam (CAM1, CAM 2, CAM 3, CAM 4) is configured in such a way as to give rise to a cycle of opening and closing of each of the intake valves of the engine in an angular range of rotation of the crankshaft considerably less than 180° in such a way that, in each operating cycle of a cylinder, only one first intake valve (V1) initially opens and closes while the second intake valve (V2) remains closed, and then the second intake valve (V2) opens and closes while the first intake valve (V1) remains closed.

6. 发明申请

WO2014128526A1 INTERNAL-COMBUSTION ENGINE HAVING A SYSTEM FOR VARIABLE ACTUATION OF THE INTAKE VALVES, PROVIDED WITH THREE-WAY SOLENOID VALVES 审中-公开
标题翻译：具有三路电磁阀阀门的内燃机可变阀门的系统
公开(公告)号：WO2014128526A1
公开(公告)日：2014-08-28
申请号：PCT/IB2013/051383
申请日：2013-02-20
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI
发明人： STUCCHI, Sergio , DE MICHELE, Onofrio , RICCO, Raffaele , GARGANO, Marcello , VATTANEO, Francesco , LEPORE, Domenico
IPC分类号： F01L9/02 , F01L1/26 , F16K11/10 , F16K31/06
CPC分类号： F01L1/267 , F01L9/025 , F16K31/0624
摘要： An internal-combustion engine with two intake valves (7A, 7B) for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single solenoid valve for each cylinder that controls communication of the pressurized-fluid chamber (C) of the system with an exhaust channel (23). The solenoid valve is a three-way, three-position solenoid valve, comprising an inlet (i) permanently communicating with the pressurized-fluid chamber and with the hydraulic actuator of an intake valve (7B), and two outlets (u1, u2) communicating, respectively, with the actuator of the other intake valve (7A) and with said exhaust channel. The solenoid valve has a first position (P1), in which the inlet communicates with both of the outlets, a second position (P2), in which the inlet communicates only with the aforesaid outlet (u1) connected to the actuator of an intake valve (7A) and does not communicate, instead, with the outlet (u2) connected to the exhaust channel (23), and a third position (P3), in which the inlet (i) does not communicate with any of the two outlets (u1, u2).
摘要翻译：具有用于每个气缸的两个进气门（7A，7B）的内燃机设置有用于可变致动进气门的系统，包括用于控制加压流体室（C）的连通的每个气缸的单个电磁阀，具有排气通道（23）的系统。电磁阀是三通三位电磁阀，包括与加压流体室和进气阀（7B）的液压致动器永久连通的入口（i）和两个出口（u1，u2）分别与另一个进气门（7A）的致动器和所述排气通道连通。电磁阀具有第一位置（P1），其中入口与两个出口连通，第二位置（P2），其中入口仅与连接到进气阀的致动器的前述出口（u1）连通（7A），并且不与连接到排气通道（23）的出口（u2）通信，并且第三位置（P3），其中入口（i）不与两个出口中的任一个连通 u1，u2）。

7. 发明申请

WO2009157030A8 FUEL INJECTOR SERVOVALVE 审中-公开
公开(公告)号：WO2009157030A8
公开(公告)日：2009-12-30
申请号：PCT/IT2009/000156
申请日：2009-04-09
申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI , RICCO, Mario , STUCCHI, Sergio , RICCO, Raffaele , DE MICHELE, Onofrio , GRAVINA, Antonio , GARGANO, Marcello , ALTAMURA, Chiara , LEPORE, Domenico , MAZZARELLA, Carlo
发明人： RICCO, Mario , STUCCHI, Sergio , RICCO, Raffaele , DE MICHELE, Onofrio , GRAVINA, Antonio , GARGANO, Marcello , ALTAMURA, Chiara , LEPORE, Domenico , MAZZARELLA, Carlo
IPC分类号： F02M47/02 , F02M51/06 , F02M63/00
摘要： A fuel injector servovalve (5) has a control chamber and a fixed stem (38), on which a slidable sleeve (41) is fitted; the sleeve ' (41) is actuated by a spring (23) and by an electromagnet (16) for opening/closing a discharge duct outlet made on the side surface (39) of the fixed stem; the servovalve has a lamina (13), which is located between the core (19) of the electromagnet and an armature (17) coupled to the sleeve (20); when the armature (17) is attracted into the end-of -travel position by the electromagnet, the lamina is located in axial contact against a surface of the armature and against a surface of the core, and there are gaps for the fuel in the axial direction between such surfaces.

8. 发明公开

EP3181842A1 SYSTEM AND METHOD FOR VARIABLE ACTUATION OF A VALVE OF AN INTERNAL COMBUSTION ENGINE, WITH AN ELECTRICALLY OPERATED CONTROL VALVE HAVING AN IMPROVED CONTROL 审中-公开
标题翻译：对于电动内燃发动机可变气门操作的系统和方法操作的控制阀，改进的控制
公开(公告)号：EP3181842A1
公开(公告)日：2017-06-21
申请号：EP15200888.4
申请日：2015-12-17
申请人： C.R.F. Società Consortile per Azioni
发明人： STUCCHI, Sergio , RICCO, Raffaele , GARGANO, Marcello , DE MICHELE, Onofrio , ALTAMURA, Chiara , LEPORE, Domenico
IPC分类号： F01L9/02
CPC分类号： F01L1/24 , F01L1/047 , F01L1/462 , F01L9/023 , F01L9/025 , F01L2001/2444 , F01L2800/19 , F16H25/10 , F16H25/14
摘要： A system for variable actuation of an engine valve of an internalcombustion engine comprises a master piston (16) driven directly or indirectly by a cam (14) of a camshaft (11). A slave piston (21) is driven by said master piston (16) by means of a volume of pressurized fluid (C) interposed between the master piston (16) and the slave piston (21). The slave piston (21) causes the engine valve (7) to open, against the action of a spring (9). An electrically operated control valve (24) controls a communication between the volume of pressurized fluid (C) and an environment at lower pressure (23), with which a fluid accumulator (270) is in communication. An electronic control unit (25) is programmed for controlling the electrically operated control valve (24), so as to actuate the engine valve (7), depending upon the operating conditions, according to one or more different valve modes, including a late-valve-opening (LVO) mode and/or a multilift (ML) valve mode. When one of these valve modes is actuated, the control valve (24) opens the aforesaid communication in advance with respect to the end of the lift cycle of the cam (14), and not after closing of the engine valve (7), in such a way as to prevent or reduce a decrease in pressure in the volume of pressurized fluid (C) after closing of the engine valve (7).
摘要翻译：一种用于发动机的internalcombustion的发动机气门的可变致动系统包括由凸轮轴（11）的凸轮（14）直接或间接驱动的主活塞（16）。从动活塞（21）由所述主活塞（16）由所述主活塞（16）和从动活塞（21）之间的加压流体（C）的体积的装置驱动。从动活塞（21）使所述发动机阀（7）打开，克服弹簧（9）的作用。（270）是在通信的电在较低的压力（23），利用该一流体蓄能器操作的控制阀（24）控制的加压流体（C）的体积之间的通信和对环境。的电子控制单元（25）被编程用于控制电动操作的控制阀（24），以便致动发动机阀（7），在所述操作条件根据雅丁到一个或多个不同的阀模式，包括晚期开阀（LVO）模式和/或一个MULTILIFT（ML）阀模式。当的合成阀模式中的一个被致动时，控制阀（24）打开上述连通预先相对于所述凸轮（14）的升程周期结束时，而不是在发动机阀（7）的闭合后求的方式的发动机阀（7）的开闭之后，以防止或减少在压在加压流体（C）的体积的减少。

9. 发明公开

EP3156619A1 SYSTEM AND METHOD FOR VARIABLE ACTUATION OF A VALVE OF AN INTERNAL COMBUSTION ENGINE, WITH A DEVICE FOR DAMPENING PRESSURE OSCILLATIONS 有权
标题翻译：系统和方法与设备内燃发动机可变气门操作阻尼压力VIBRATIONS
公开(公告)号：EP3156619A1
公开(公告)日：2017-04-19
申请号：EP15189506.7
申请日：2015-10-13
申请人： C.R.F. Società Consortile per Azioni
发明人： STUCCHI, Sergio , RICCO, Raffaele , GARGANO, Marcello , DE MICHELE, Onofrio , MAZZARELLA, Carlo
IPC分类号： F01L9/02
CPC分类号： F01L1/25 , F01L9/025 , F01L2001/0537 , F01L2810/03 , F01L2810/04 , F02D13/0207
摘要： A system for variable actuation of an engine valve of an internal-combustion engine, comprises a master piston (16) and a slave piston (21), which drives the engine valve (7) and is hydraulically driven by said master piston (16) by means of a volume of pressurized fluid (C). The system further comprises an electrically operated control valve (24), which controls a communication of the volume of pressurized fluid (C) with a lower pressure environment (23). A device (D) for dampening pressure oscillations is connected to the volume of pressurized fluid (C) and comprises an additional volume adapted for receiving fluid from the volume of pressurized fluid (C) only when, following upon oscillations of the pressure in the volume of pressurized fluid (C), the pressure exceeds a maximum threshold value, which is higher than a mean pressure value that is set up in the volume of pressurized fluid (C).
摘要翻译：一种用于内燃发动机的发动机气门的可变致动系统，包括一个主活塞（16）和一个从活塞（21），其驱动所述发动机阀（7）和被液压由所述主活塞驱动（16）由加压流体（C）的体积的装置。该系统电进一步包括操作控制阀（24），其控制加压流体（C）以较低的压力环境（23）的体积的通信。一种用于阻尼压力振荡装置（D）被连接到加压流体（C）和附加的体积angepasst包括的体积用于接收流体从加压流体（C）的体积仅当，继后在体积中的压力的振荡加压流体（C）时，压力超过最大阈值值时，所有的比的平均压力值也被设置在加压流体（C）的体积更高。

10. 发明公开

EP2373877A1 HIGH OPERATION REPEATABILITY AND STABILITY FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：随着对内燃机高BETRIEBSWIEDERHOLBARKEIT和稳定性燃油喷射系统
公开(公告)号：EP2373877A1
公开(公告)日：2011-10-12
申请号：EP09806199.7
申请日：2009-12-29
申请人： C.R.F. Società Consortile per Azioni
发明人： STUCCHI, Sergio , DE MICHELE, Onofrio , RICCO, Raffaele , LEPORE, Domenico , ALTAMURA, Chiara , GARGANO, Marcello
IPC分类号： F02D41/20 , F02D41/40 , F02M63/00
CPC分类号： F02M47/027 , F02D41/20 , F02D41/403 , F02M45/08 , F02M63/0024 , F02M63/004 , F02M63/007 , F02M63/0075 , F02M63/008 , F02M2200/306 , F02M2547/003
摘要： A fuel injection system for an internal combustion engine, comprising: at least one fuel electroinjector; and one electronic control unit designed to supply the fuel electroinjector, in a fuel injection phase in an engine cylinder, with at least a first electrical command to perform a pilot fuel injection, and a second electrical command to perform a main fuel injection. The first and second electrical commands are separated in time by an electrical dwell time such that the main fuel injection starts without interruption with respect to the pilot fuel injection. The electrical dwell time between the first and second electrical commands belongs to an electrical dwell time range in which the total fuel amount injected in the pilot and main fuel injections in a fuel injection phase in an engine cylinder is substantially constant.

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