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公开(公告)号：US07350502B2
公开(公告)日：2008-04-01
申请号：US11030895
申请日：2005-01-10
申请人： Zdenek Meistrick , Todd Perkins
发明人： Zdenek Meistrick , Todd Perkins
IPC分类号： F02D9/06
CPC分类号： F02D9/1065 , F02D9/06
摘要： An apparatus and method of controlling exhaust pressure in an internal combustion engine are disclosed. In one embodiment the apparatus may comprise: a housing; a valve disposed in the housing; an orifice formed in the valve, wherein the orifice defines a gas flowpath through the valve; and a shaft slidably disposed in a bore formed in the valve, the shaft movable between a first position, in which gas is substantially prevented from flowing through said orifice, and a second position in which gas is permitted to flow through said orifice. The position of the shaft may be selectively varied in response to an actuating force.
摘要翻译： 公开了一种控制内燃机排气压力的装置和方法。 在一个实施例中，装置可以包括：壳体; 设置在壳体中的阀; 形成在所述阀中的孔，其中所述孔限定通过所述阀的气体流径; 以及可滑动地设置在形成在所述阀中的孔中的轴，所述轴可在基本上防止气体流过所述孔的第一位置和允许气体流过所述孔的第二位置之间移动。 轴的位置可以响应于致动力而选择性地变化。
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公开(公告)号：US07284533B1
公开(公告)日：2007-10-23
申请号：US11429225
申请日：2006-05-08
申请人： Shengqiang Huang , Zhou Yang , John A. Schwoerer
发明人： Shengqiang Huang , Zhou Yang , John A. Schwoerer
IPC分类号： F02D13/04
CPC分类号： F02D13/04 , F02D9/06 , F02D13/0246 , F02D13/0273 , F02M26/01 , F02M26/615
摘要： Methods and apparatus for actuating an engine valve provided between an engine cylinder and an exhaust manifold to provide compression-release engine braking in combination with exhaust gas restriction and brake gas recirculation are disclosed. In a first embodiment of the present invention, the engine valve used to provide brake gas recirculation and compression-release braking may be maintained slightly open between the brake gas recirculation and compression-release events. In another embodiment of the present invention, the cam closing ramp for a main exhaust event may be extended to terminate near the beginning of a brake gas recirculation event to facilitate refilling a hydraulic valve actuation system used to in association with the exhaust valve.
摘要翻译： 公开了用于致动设置在发动机气缸和排气歧管之间的发动机气门以提供与排气限制和制动气体再循环相结合的压缩释放发动机制动的方法和装置。 在本发明的第一实施例中，用于提供制动气体再循环和压缩释放制动的发动机阀可以在制动气体再循环和压缩释放事件之间保持略微打开。 在本发明的另一个实施例中，用于主排气事件的凸轮闭合斜坡可以延伸以在制动气体再循环事件开始附近终止，以便于重新填充用于与排气阀相关联的液压阀致动系统。
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公开(公告)号：US20240175403A1
公开(公告)日：2024-05-30
申请号：US18524380
申请日：2023-11-30
CPC分类号： F02D41/042 , F01L9/10 , F01L9/40 , F01L13/0005 , F02D13/0203 , F02D13/06 , F02D41/0087 , F01L2009/4094
摘要： Control of engine shutdown of an internal combustion engine comprising a plurality of cylinders and, for each of the plurality of cylinders, a hydraulically controlled lost motion component operatively connected to an engine valve corresponding to the cylinder, is achieved when an engine controller determines that shutdown of the internal combustion engine has been requested. Responsive to the request for shutdown, the engine controller initiates or continues cylinder deactivation operation for each of at least one cylinder of the plurality of cylinders. The initiation or continuation of the cylinder deactivation operation for each of the at least one cylinder comprises, for an input to the hydraulically controlled lost motion component for each of at least one engine valve corresponding to the cylinder, operating the input to provide the cylinder deactivation operation for a duration at least long enough to complete shutdown of the internal combustion engine.
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公开(公告)号：US20230383676A1
公开(公告)日：2023-11-30
申请号：US18249720
申请日：2021-05-07
发明人： Gabriel S. ROBERTS , Marc SILVA , Dong YANG
CPC分类号： F01L13/065 , F01L1/181 , F01L2001/467
摘要： Systems for valve actuation in internal combustion engines provide rocker control components in the form of biasing mechanisms for biasing the valve side of a lost motion rocker toward the engine valves. This may prevent gaps in the valvetrain, particularly when used with cams having sub-base circle auxiliary motion event profiles. Valvetrain components, such as an e-foot engaging a valve bridge, may be provided with a biasing mechanism and stroke limiting and retaining components to maintain engagement between the e-foot and valve bridge, to control stability of the valve bridge, and to make assembly/disassembly easier.
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公开(公告)号：US11319842B2
公开(公告)日：2022-05-03
申请号：US17305165
申请日：2021-07-01
IPC分类号： F01L1/26
摘要： A valve bridge comprises a central body and at least first and second valve interface portions extending from the central body, each of the at least first and second valve interface portions defining a chamber configured to receive an engine valve and corresponding valve spring and spring retainer. Each chamber comprises a valve bridge control surface configured to selectively contact at least one of the corresponding valve spring and spring retainer, wherein each valve bridge control surface is a concave surface configured to extend downward around the corresponding valve spring.
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26.发明授权公开(公告)号：US11313259B2
公开(公告)日：2022-04-26
申请号：US16796653
申请日：2020-02-20
发明人： Peter Jo , Justin Baltrucki , David Ferreira , Neenad Wamane
摘要： In an internal combustion engine, a linkage is provided between an auxiliary motion source and a main motion load path, such that motions received by the linkage from the auxiliary motion source result in provision of a first force to at least one engine valve and a second force to the main motion load path in a direction toward a main motion source. Where an automatic lash adjuster is associated with the main motion load path, the second force may be selected to aid in the control of lash adjustments made by the automatic lash adjuster. In various embodiments, the linkage may be embodied in an mechanical linkage, whereas in other embodiments, an hydraulic linkage may be employed. The linkage may be incorporated into, or otherwise cooperate, a valve bridge or a rocker arm.
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公开(公告)号：US11261805B2
公开(公告)日：2022-03-01
申请号：US16947239
申请日：2020-07-24
发明人： Justin D. Baltrucki
摘要： In an embodiment, an internal combustion engine comprises a plurality of cylinders, each of the plurality of cylinders comprising at least one intake deactivator operatively connected to at least one intake valve and at least one exhaust deactivator operatively connected to at least one exhaust. An intake deactivator controller is operatively connected to the intake deactivators associated with at least two cylinders of the plurality of cylinders, and an exhaust deactivator controller is operatively connected to the exhaust deactivators associated with the at least two cylinders. In another embodiment, only a single deactivator controller is operatively connected to both the intake deactivators and to the exhaust deactivators associated with the at least two cylinders of the plurality of cylinders.
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28.发明申请公开(公告)号：US20210340891A1
公开(公告)日：2021-11-04
申请号：US17302475
申请日：2021-05-04
发明人： Gabriel S. ROBERTS , Steven BENN , Dong YANG , Eric HODGKINSON , Dominick GUARNA
摘要： A valve actuation system comprising a valve actuation motion source configured to provide a main event valve actuation motion to at least one engine valve via a main motion load path that comprises at least one valve train component. The valve actuation system further includes a lost motion component arranged within a first valve train component in the main motion load path, the lost motion component being controllable to operate in a motion conveying state or a motion absorbing state. The valve actuation system also comprises a high lift transfer component arranged in the main motion load path, with the high lift transfer component being configured to permit the main motion load path to convey at least a high lift portion of the main event valve actuation motion when the lost motion component is in the motion absorbing state.
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29.发明申请公开(公告)号：US20210340886A1
公开(公告)日：2021-11-04
申请号：US17305637
申请日：2021-07-12
摘要： A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower body and interacts with a lever to provide a constant contact geometry. The finger follower may be configured as a lost motion device and may include a biasing assembly and a travel limiter. The latch may support the lever in at least one precise position and may support the lever in a second position for partial lost motion, or permit the lever to pivot free of the latch for complete lost motion, as in cylinder deactivation applications.
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30.发明授权公开(公告)号：US11162438B2
公开(公告)日：2021-11-02
申请号：US17301419
申请日：2021-04-02
发明人： Justin D. Baltrucki , Robb Janak
摘要： Systems and methods for controlling valves in valve actuation systems in internal combustion engines systems may be particularly suitable for sequencing valve motion in engine environments that combine cylinder deactivation and high-power density (HPD) engine braking. A main event motion system is configured to produce main event motion in one or more valve sets. An engine braking system produces engine braking motion and a cylinder deactivation system selectively deactivates main event motion of the intake and exhaust valves the valve set. A blocking system selectively prevents the cylinder deactivation system from deactivating main event motion of at least one intake valve during the engine braking operation. Thus, main event intake valve motions may be available for braking operations, such as HPD braking where main event intake valve motion may be used to enhance CR braking. One actuator can control deactivation of paired intake and exhaust main event motion.
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