公开(公告)号：US08726860B2

公开(公告)日：2014-05-20

申请号：US13150358

申请日：2011-06-01

Applicant: Andreas Kufner ,  Michael Berger ,  Calin Petru Itoafa

Inventor： Andreas Kufner ,  Michael Berger ,  Calin Petru Itoafa

IPC: F01L9/02

CPC classification number: F01L9/025

Abstract: An electrohydraulic valve controller for variable actuation of a gas exchange valve of an internal combustion engine. The electrohydraulic valve controller has a first hydraulic valve and, for the purpose of providing an emergency running capability, a second hydraulic valve.

Abstract translation: 一种用于内燃机的气体交换阀的可变致动的电动液压阀控制器。 电液阀控制器具有第一液压阀，并且为了提供紧急运行能力，第二液压阀。

公开(公告)号：US09004032B2

公开(公告)日：2015-04-14

申请号：US14113692

申请日：2012-02-03

Applicant: Calin Petru Itoafa

Inventor： Calin Petru Itoafa

IPC: F01L1/14 ,  F01L1/46 ,  F01L9/02 ,  F01L13/00

CPC classification number: F01L1/46 ,  F01L9/02 ,  F01L9/025 ,  F01L13/0015

Abstract: A switch valve for a hydraulic unit, in particular a quick-acting valve for a hydraulic unit of a hydraulically variable valve gear of a reciprocating internal combustion engine, having a valve body, which is guided in an axially movable manner in a housing part and which is sealed with respect to the housing part by a seal, wherein the seal is designed as a flat seal element, which encloses the valve body in a sealing manner and which is operatively connected to an axial surface of the housing part in a sealing manner.

Abstract translation: 一种用于液压单元的切换阀，特别是用于往复式内燃机的液压可变阀齿轮的液压单元的快动阀，具有阀体，其以轴向移动的方式被引导到壳体部分中， 其通过密封件相对于壳体部分被密封，其中密封件被设计为扁平密封元件，其以密封方式包围阀体并且以密封方式可操作地连接到壳体部件的轴向表面 。

公开(公告)号：US20140041609A1

公开(公告)日：2014-02-13

申请号：US14113692

申请日：2012-02-03

Applicant: Calin Petru Itoafa

Inventor： Calin Petru Itoafa

IPC: F01L1/46 ,  F01L13/00

CPC classification number: F01L1/46 ,  F01L9/02 ,  F01L9/025 ,  F01L13/0015

Abstract: A switch valve for a hydraulic unit, in particular a quick-acting valve for a hydraulic unit of a hydraulically variable valve gear of a reciprocating internal combustion engine, having a valve body, which is guided in an axially movable manner in a housing part and which is sealed with respect to the housing part by a seal, wherein the seal is designed as a flat seal element, which encloses the valve body in a sealing manner and which is operatively connected to an axial surface of the housing part in a sealing manner.

Abstract translation: 一种用于液压单元的切换阀，特别是用于往复式内燃机的液压可变阀齿轮的液压单元的快动阀，具有阀体，其以轴向移动的方式被引导到壳体部分中， 其通过密封件相对于壳体部分被密封，其中密封件被设计为扁平密封元件，其以密封方式包围阀体并且以密封方式可操作地连接到壳体部件的轴向表面 。

公开(公告)号：US09267397B2

公开(公告)日：2016-02-23

申请号：US13985943

申请日：2011-11-17

Applicant: Calin Petru Itoafa ,  Hermann Keller

Inventor： Calin Petru Itoafa ,  Hermann Keller

IPC: F01L9/02 ,  F01L1/34 ,  F01L1/16

CPC classification number: F01L1/34 ,  F01L1/16 ,  F01L9/02 ,  F01L9/025 ,  F01L2103/00

Abstract: The invention proposes a subassembly of a hydraulic variable valve train of an internal combustion engine, having a guide bushing (4) that can be installed in a hydraulic housing (3), and having a piston (5) supported therein so as to be axially movable for actuating a gas exchange valve (1), and having a valve element (7) that, together with the end face (10) of the piston distant from the gas exchange valve, defines a hydraulic pressure chamber (11) in the guide bushing, wherein the valve element is a throttle check valve that allows hydraulic medium to flow out of the pressure chamber throttled by a continuously open throttle opening (16) and allows hydraulic medium to flow into the pressure chamber with little throttling by a ball check valve (17). The subassembly is intended to be implemented as a modular unit assembled outside of the hydraulic housing, wherein the guide bushing and the valve element are fastened to one another, and the piston is secured in a captive manner in the guide bushing.

Abstract translation: 本发明提出了一种内燃机的液压可变气门机构的组件，其具有可安装在液压壳体（3）中的导向套管（4），并且具有支承在其中的活塞（5）以便轴向 可移动用于致动气体交换阀（1），并且具有阀元件（7），其与活塞远离气体交换阀的端面（10）一起在引导件中限定液压室（11） 套管，其中所述阀元件是节气门止回阀，其允许液压介质从连续打开的节流开口（16）节流的压力室流出，并且允许液压介质流入压力室，而通过球止回阀 （17）。 子组件旨在实现为组装在液压壳体外部的模块单元，其中引导衬套和阀元件彼此紧固，并且活塞以捕获方式固定在引导衬套中。

公开(公告)号：US20130174799A1

公开(公告)日：2013-07-11

申请号：US13825590

申请日：2011-07-28

Applicant: Calin Petru Itoafa

Inventor： Calin Petru Itoafa

IPC: F01L1/14

CPC classification number: F01L1/14 ,  F01L1/24

Abstract: The invention relates to an actuator of an electrohydraulic gas exchange valve drive of an internal combustion engine, comprising an actuator housing (4), which can be fixed in the internal combustion engine and which comprises a bore (9); a valve play compensation element (8) which is received in said bore in an axially movable manner and which comprises a compensating housing (12) for actuating the gas exchange valve (1); and an axial stop which limits the extending movement of the compensation housing out of the bore (9) and which comprises stopes (14, 15) that overlap each other radially. The stop (14) on the compensation housing-side is a collar of a sleeve (18) that surrounds the outer casing of the compensation housing said collar extending outwards in a radial manner.

Abstract translation: 本发明涉及一种内燃机的电动液压气体交换阀驱动器的致动器，其包括可固定在内燃机中并包括孔（9）的致动器壳体（4）。 一个以可轴向移动的方式容纳在所述孔中并包括用于致动所述气体交换阀（1）的补偿壳体（12）的阀打补偿元件（8）。 以及轴向止动件，其将补偿壳体的延伸运动限制在孔（9）之外，并且包括径向彼此重叠的挡块（14,15）。 补偿壳体侧上的止动件（14）是围绕补偿壳体的外壳的套筒（18）的套环，所述套环以径向方式向外延伸。

公开(公告)号：US08387946B2

公开(公告)日：2013-03-05

申请号：US13115280

申请日：2011-05-25

Applicant: Calin Petru Itoafa ,  Andreas Kufner

Inventor： Calin Petru Itoafa ,  Andreas Kufner

IPC: F16K31/02

CPC classification number: F16K31/0655 ,  F16K31/0693

Abstract: An electromagnetic valve, which has a magnet armature chamber, a pressure medium chamber, a pressure medium inlet channel and a pressure medium outlet channel respectively connected to the pressure medium chamber, a valve seat, and a valve closure member that, upon bearing contact on the valve seat, blocks the connection between the pressure medium inlet channel and the pressure medium outlet channel, and a valve guide extending between the magnet armature chamber and the pressure medium chamber. A sealing ring made of a polymer, which surrounds the valve closure member and separates the magnet armature chamber from the pressure medium chamber, extends between the valve closure member and the valve guide. The geometric design of the sealing ring to the valve guide provides wear resistance for the sealing ring.

Abstract translation: 一种电磁阀，其具有分别连接到压力介质室的磁体衔铁室，压力介质室，压力介质入口通道和压力介质出口通道，阀座和阀关闭构件，其在轴承接触时 阀座阻塞压力介质入口通道和压力介质出口通道之间的连接，以及在磁体衔铁室和压力介质室之间延伸的阀导向件。 由聚合物制成的密封环围绕阀闭合构件并将磁体衔铁室与压力介质室分离，在阀关闭构件和阀引导件之间延伸。 密封环到阀门导轨的几何设计为密封圈提供了耐磨性。

公开(公告)号：US08826875B2

公开(公告)日：2014-09-09

申请号：US13825590

申请日：2011-07-28

Applicant: Calin Petru Itoafa

Inventor： Calin Petru Itoafa

IPC: F01L1/14 ,  F01L1/24

CPC classification number: F01L1/14 ,  F01L1/24

Abstract: The invention relates to an actuator of an electrohydraulic gas exchange valve drive of an internal combustion engine, comprising an actuator housing (4), which can be fixed in the internal combustion engine and which comprises a bore (9); a valve play compensation element (8) which is received in said bore in an axially movable manner and which comprises a compensating housing (12) for actuating the gas exchange valve (1); and an axial stop which limits the extending movement of the compensation housing out of the bore (9) and which comprises stopes (14, 15) that overlap each other radially. The stop (14) on the compensation housing-side is a collar of a sleeve (18) that surrounds the outer casing of the compensation housing said collar extending outwards in a radial manner.

Abstract translation: 本发明涉及一种内燃机的电动液压气体交换阀驱动器的致动器，其包括可固定在内燃机中并包括孔（9）的致动器壳体（4）。 一个以可轴向移动的方式容纳在所述孔中并包括用于致动所述气体交换阀（1）的补偿壳体（12）的阀打补偿元件（8）。 以及轴向止动件，其将补偿壳体的延伸运动限制在孔（9）之外，并且包括径向彼此重叠的挡块（14,15）。 补偿壳体侧上的止动件（14）是围绕补偿壳体的外壳的套筒（18）的套环，所述套环以径向方式向外延伸。

公开(公告)号：US07389757B2

公开(公告)日：2008-06-24

申请号：US11298733

申请日：2005-12-09

Applicant: Calin Petru Itoafa ,  Friedrich Hieronymus

Inventor： Calin Petru Itoafa ,  Friedrich Hieronymus

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/24 ,  F01L13/0005 ,  F01L2001/256 ,  F01L2105/00 ,  F01L2800/01 ,  F01L2800/12

Abstract: A force-transmitting arrangement (4) for a valve train (1) of an internal-combustion engine (2) with hydraulic valve play compensation device (6) with a hollow cylindrical compensation piston (15) is provided. The compensation piston (15) borders, on one end, a working space (32) of the valve play compensation device (6) and, on the other end, a hydraulic medium reservoir (33), which is used for supplying the working space (32) and which is connected to a hydraulic medium supply (18) of the internal-combustion engine (2). A run-off safety device (22, 22a, 22b) at least partially prevents a hydraulic medium flow from the hydraulic medium reservoir (33) in the direction of the hydraulic medium supply (18). The hydraulic medium reservoir (33) includes an inner storage space (17) enclosed by the compensation piston (15) and at least one outer storage space (31) located outside the compensation piston (15), wherein the run-off safety device (22, 22a, 22b) extends between the hydraulic medium supply (18) and hydraulic medium reservoir (33) into a supply bore (35) arranged in the force-transmitting arrangement (4).

Abstract translation: 提供一种具有带有中空圆柱形补偿活塞（15）的液压阀游戏补偿装置（6）的用于内燃机（2）的气门机构（1）的力传递装置（4）。 补偿活塞（15）的一端与阀打补偿装置（6）的工作空间（32）相接，另一端与用于供给工作空间的液压介质贮存器（33） （32），并且连接到内燃机（2）的液压介质供应源（18）。 径流安全装置（22,22a，22b）至少部分地防止液压介质沿着液压介质供应（18）的方向从液压介质储存器（33）流出。 液压介质储存器（33）包括由补偿活塞（15）包围的内部存储空间（17）和位于补偿活塞（15）外部的至少一个外部存储空间（31），其中，径向安全装置 22,22a，22b）在液压介质供应（18）和液压介质储存器（33）之间延伸到设置在力传递装置（4）中的供应孔（35）中。

公开(公告)号：US06988474B2

公开(公告)日：2006-01-24

申请号：US10935935

申请日：2004-09-08

Applicant: Calin Petru Itoafa

Inventor： Calin Petru Itoafa

IPC: F01L1/18

CPC classification number: F01L1/24 ,  F01L1/146 ,  F01L13/0005 ,  F01L13/0031 ,  F01L2101/00 ,  F01L2105/00

Abstract: The invention proposes a cam follower (1) comprising a hydraulic clearance compensation device (27) from whose reservoir (8) a controlled and throttled supply of hydraulic medium to lubricating points of the abutting tappet push rod and the associated rocker arm is realized with the help of an oil distributing disk (12) that extends in the reservoir (8). Projections (19) configured, for example, as bulging formations (21), are arranged on an underside (13) of a support (7) for the tappet push rod. In the presence of hydraulic medium pressure, the oil distributing disk (12) is pressed against the projections (19) and enables a purposed and throttled transfer of hydraulic medium between its upper side (18) and the underside (13) into an axial passage (11) of the support (7).

Abstract translation: 本发明提出了一种凸轮从动件（1），其包括液压间隙补偿装置（27），其储存器（8）被控制和节流地供应液压介质到抵靠挺杆推杆的润滑点，并且相关联的摇臂由 帮助在油箱（8）中延伸的油分配盘（12）。 例如，构造为凸起结构（21）的突起（19）布置在用于挺杆推杆的支撑件（7）的下侧（13）上。 在存在液压介质压力的情况下，油分配盘（12）被压在突起（19）上，并且使得液压介质在其上侧（18）和下侧（13）之间的目的和节流传递成轴向通道 （7）的支撑件（11）。

公开(公告)号：US20140048024A1

公开(公告)日：2014-02-20

申请号：US13985943

申请日：2011-11-17

Applicant: Calin Petru Itoafa ,  Hermann Keller

Inventor： Calin Petru Itoafa ,  Hermann Keller

IPC: F01L1/34

CPC classification number: F01L1/34 ,  F01L1/16 ,  F01L9/02 ,  F01L9/025 ,  F01L2103/00

Abstract: The invention proposes a subassembly of a hydraulic variable valve train of an internal combustion engine, having a guide bushing (4) that can be installed in a hydraulic housing (3), and having a piston (5) supported therein so as to be axially movable for actuating a gas exchange valve (1), and having a valve element (7) that, together with the end face (10) of the piston distant from the gas exchange valve, defines a hydraulic pressure chamber (11) in the guide bushing, wherein the valve element is a throttle check valve that allows hydraulic medium to flow out of the pressure chamber throttled by a continuously open throttle opening (16) and allows hydraulic medium to flow into the pressure chamber with little throttling by a ball check valve (17). The subassembly is intended to be implemented as a modular unit assembled outside of the hydraulic housing, wherein the guide bushing and the valve element are fastened to one another, and the piston is secured in a captive manner in the guide bushing.

Abstract translation: 本发明提出了一种内燃机的液压可变气门机构的组件，其具有可安装在液压壳体（3）中的导向套管（4），并且具有支承在其中的活塞（5）以便轴向 可移动用于致动气体交换阀（1），并且具有阀元件（7），其与活塞远离气体交换阀的端面（10）一起在引导件中限定液压室（11） 套管，其中所述阀元件是节气门止回阀，其允许液压介质从连续打开的节流开口（16）节流的压力室流出，并且允许液压介质流入压力室，而通过球止回阀 （17）。 子组件旨在实现为组装在液压壳体外部的模块单元，其中引导衬套和阀元件彼此紧固，并且活塞以捕获方式固定在引导衬套中。