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公开(公告)号：US07536984B2
公开(公告)日：2009-05-26
申请号：US11787295
申请日：2007-04-16
Applicant: Zheng Lou
Inventor： Zheng Lou
IPC: F01L1/34
CPC classification number: F01L9/02 , F01L9/026 , F01L2001/34446 , F01L2003/258 , F01L2009/028 , F01L2810/05 , Y10S137/906 , Y10T137/87096
Abstract: Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink.
Abstract translation: 致动器以及用于控制这种致动器的相应方法和系统提供具有大的初始或打开力的独立阀控制。 在示例性实施例中，致动器包括驱动器，其进一步包括限定纵向轴线和第一和第二方向的壳体，能够至少在第一方向上产生致动力的致动机构，以及一端与至少可操作地连接的杆 致动机构的一部分，另一端可用于与诸如发动机气门的负载的可操作连接; 至少一个复位弹簧通过弹簧保持器组件与所述杆可操作地连接并且沿所述第二方向偏置所述杆; 以及气动助力器，还包括气动缸，气动活塞，通过所述弹簧保持器组件与所述杆可操作地连接并且沿所述第一方向偏置所述杆;充气机构，其在所述气缸和高压气体之间提供受控的流体连通 源和泄放机构，其在气压缸与低压气体槽之间提供受控的流体连通。
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公开(公告)号：US08146547B2
公开(公告)日：2012-04-03
申请号：US12636051
申请日：2009-12-11
Applicant: Zheng Lou
Inventor： Zheng Lou
IPC: F01L9/02
CPC classification number: F01L9/02 , F01L9/026 , F01L2001/34446 , F01L2003/258 , F01L2009/028 , F01L2810/05 , Y10S137/906 , Y10T137/87096
Abstract: Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink.
Abstract translation: 致动器以及用于控制这种致动器的相应方法和系统提供具有大的初始或打开力的独立阀控制。 在示例性实施例中，致动器包括驱动器，其进一步包括限定纵向轴线和第一和第二方向的壳体，能够至少在第一方向上产生致动力的致动机构，以及一端与至少可操作地连接的杆 致动机构的一部分，另一端可用于与诸如发动机气门的负载的可操作连接; 至少一个复位弹簧通过弹簧保持器组件与所述杆可操作地连接并且沿所述第二方向偏置所述杆; 以及气动助力器，还包括气动缸，气动活塞，通过所述弹簧保持器组件与所述杆可操作地连接并且沿所述第一方向偏置所述杆;充气机构，其在所述气缸和高压气体之间提供受控的流体连通 源和泄放机构，其在气压缸与低压气体槽之间提供受控的流体连通。
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公开(公告)号：US20120017860A1
公开(公告)日：2012-01-26
申请号：US13234258
申请日：2011-09-16
Applicant: Stephen Scuderi , Riccardo Meldolesi
Inventor： Stephen Scuderi , Riccardo Meldolesi
IPC: F01L1/06
CPC classification number: F02B41/08 , F01L1/181 , F01L1/38 , F01L1/46 , F01L1/462 , F01L3/20 , F01L9/026 , F01L2003/258 , F01L2810/05
Abstract: A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve.
Abstract translation: 分相发动机包括可围绕曲轴轴线旋转的曲轴。 压缩活塞可滑动地容纳在压缩气缸中并且可操作地连接到曲轴，使得压缩活塞在曲轴的单次旋转期间通过进气和压缩冲程往复运动。 膨胀活塞可滑动地容纳在膨胀缸内并且可操作地连接到曲轴，使得膨胀活塞在曲轴的单次旋转期间通过膨胀和排气冲程往复运动。 交叉通道将膨胀和压缩气缸相互连接。 交叉通道包括交叉压缩（XovrC）和在其间限定压力室的交叉膨胀（XovrE）阀。 XovrC和XovrE阀中至少有一个是平衡阀。 流体压力平衡器偏压阀，以平衡在打开和关闭方向上作用在阀上的流体压力，从而减少致动阀所需的力。
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公开(公告)号：US20090044778A1
公开(公告)日：2009-02-19
申请号：US12218757
申请日：2008-07-17
Applicant: Stephen P. Scuderi , Riccardo Meldolesi
Inventor： Stephen P. Scuderi , Riccardo Meldolesi
CPC classification number: F02B41/08 , F01L1/181 , F01L1/38 , F01L1/46 , F01L1/462 , F01L3/20 , F01L9/026 , F01L2003/258 , F01L2810/05
Abstract: A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve.
Abstract translation: 分相发动机包括可围绕曲轴轴线旋转的曲轴。 压缩活塞可滑动地容纳在压缩气缸内并且可操作地连接到曲轴，使得压缩活塞在曲轴的单次旋转期间通过进气和压缩冲程往复运动。 膨胀活塞可滑动地容纳在膨胀缸内并且可操作地连接到曲轴，使得膨胀活塞在曲轴的单次旋转期间通过膨胀和排气冲程往复运动。 交叉通道将膨胀和压缩气缸相互连接。 交叉通道包括交叉压缩（XovrC）和在其间限定压力室的交叉膨胀（XovrE）阀。 XovrC和XovrE阀中至少有一个是平衡阀。 流体压力平衡器偏压阀，以平衡在打开和关闭方向上作用在阀上的流体压力，从而减少致动阀所需的力。
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公开(公告)号：US4777916A
公开(公告)日：1988-10-18
申请号：US104231
申请日：1987-10-05
Applicant: Ernst Holmer
Inventor： Ernst Holmer
CPC classification number: F01L1/465 , F01L2810/05
Abstract: The invention relates to a valve spring device for a valve in an internal combustion engine. The valve has a valve disc (4) cooperating with a valve seat (5) to control the flow in an engine duct (3), and a valve spindle (6) extending from the valve disc (4). The valve spring device comprises at least one spring (10,11) which is arranged to act between an abutment surface (12) of the engine and an actuating device (8) joined to the valve spindle (6) to bias the valve disc (4) towards the valve seat (5). According to the invention the spring (10,11) consists of a relatively weak helical compression spring. The actuating device (8) is arranged around the valve spindle (6) and is axially displaceable and sealingly guided to form a chamber (15), which at one end is limited by the abutment surface (12) and at the other end is limited by the actuating device (8). The chamber (15) is in communication (24- 27) with the engine duct (3) in which the valve (4,6) is arranged to control the flow.
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Patent Agency Ranking
公开(公告)号：US20180355768A1
公开(公告)日：2018-12-13
申请号：US15992739
申请日：2018-05-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Andreas Biermann , Matthias Ammann
CPC classification number: F01L1/46 , F01L1/143 , F01L1/146 , F01L1/185 , F01L1/24 , F01L1/2405 , F01L1/245 , F01L2001/186 , F01L2101/00 , F01L2103/00 , F01L2810/05
Abstract: A hydraulic support element for a variable valve train of an internal combustion engine, which has a cylindrical pot-shaped housing and a hollow cylindrical piston guided for movement in this housing and whose inner end is supported by a compression spring on the base wall of the housing. The outer end extends past the housing and is formed as a hemispherical bearing head. The interior is divided into an inner supply pressure space and an outer switching pressure space that are connected by inlet openings in the cylindrical side walls of the housing and the piston with a cylinder head side supply pressure line and by a non-return valve to a high-pressure space enclosed between the inner end of the piston and the base wall of the housing, or to a cylinder head side switching pressure line and also by a central hole formed in the bearing head to a rocker arm side switching pressure channel. To prevent the entry of harmful particles into the supply pressure space and/or the switching pressure space of the piston, the piston has a ring-shaped recess in its cylindrical side wall in the area of the inlet openings on the outside in the radial direction, and a filter element constructed as a ring filter is inserted into the ring-shaped recess of the piston with an axial positive-fit connection.
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公开(公告)号：US20170342872A1
公开(公告)日：2017-11-30
申请号：US15169306
申请日：2016-05-31
Applicant: Ford Global Technologies, LLC
Inventor： Douglas Raymond Martin , John Eric Rollinger
IPC: F01L1/46
CPC classification number: F01L1/462 , F01L1/46 , F01L3/24 , F01L2001/0537 , F01L2013/001 , F01L2800/10 , F01L2800/11 , F01L2800/14 , F01L2810/05 , F01L2820/041 , F01L2820/042
Abstract: Systems and methods for operating exhaust valves of an internal combustion engine with poppet exhaust valves are described. The systems and methods provide for locking exhaust valves in a closed state when the exhaust valves are in mechanical communication with a base circle of a camshaft lobe. Locking the exhaust valves in a closed state may reduce the possibility of exhaust pressures opening the exhaust valves at times they may not be desired to be open.
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公开(公告)号：US20100126442A1
公开(公告)日：2010-05-27
申请号：US12636051
申请日：2009-12-11
Applicant: Zheng Lou
Inventor： Zheng Lou
IPC: F01L9/02
CPC classification number: F01L9/02 , F01L9/026 , F01L2001/34446 , F01L2003/258 , F01L2009/028 , F01L2810/05 , Y10S137/906 , Y10T137/87096
Abstract: Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink.
Abstract translation: 致动器以及用于控制这种致动器的相应方法和系统提供具有大的初始或打开力的独立阀控制。 在示例性实施例中，致动器包括驱动器，其进一步包括限定纵向轴线和第一和第二方向的壳体，能够至少在第一方向上产生致动力的致动机构，以及一端与至少可操作地连接的杆 致动机构的一部分，另一端可用于与诸如发动机气门的负载的可操作连接; 至少一个复位弹簧通过弹簧保持器组件与所述杆可操作地连接并且沿所述第二方向偏置所述杆; 以及气动助力器，还包括气动缸，气动活塞，通过所述弹簧保持器组件与所述杆可操作地连接并沿所述第一方向偏压所述杆;充气机构，其在所述气缸和高压气体之间提供受控的流体连通 源和泄放机构，其在气压缸与低压气体槽之间提供受控的流体连通。
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公开(公告)号：US09885260B2
公开(公告)日：2018-02-06
申请号：US15169306
申请日：2016-05-31
Applicant: Ford Global Technologies, LLC
Inventor： Douglas Raymond Martin , John Eric Rollinger
CPC classification number: F01L1/462 , F01L1/46 , F01L3/24 , F01L2001/0537 , F01L2013/001 , F01L2800/10 , F01L2800/11 , F01L2800/14 , F01L2810/05 , F01L2820/041 , F01L2820/042
Abstract: Systems and methods for operating exhaust valves of an internal combustion engine with poppet exhaust valves are described. The systems and methods provide for locking exhaust valves in a closed state when the exhaust valves are in mechanical communication with a base circle of a camshaft lobe. Locking the exhaust valves in a closed state may reduce the possibility of exhaust pressures opening the exhaust valves at times they may not be desired to be open.
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公开(公告)号：US08360019B2
公开(公告)日：2013-01-29
申请号：US13234258
申请日：2011-09-16
Applicant: Stephen P. Scuderi , Riccardo Meldolesi
Inventor： Stephen P. Scuderi , Riccardo Meldolesi
IPC: F01L3/20
CPC classification number: F02B41/08 , F01L1/181 , F01L1/38 , F01L1/46 , F01L1/462 , F01L3/20 , F01L9/026 , F01L2003/258 , F01L2810/05
Abstract: A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve.
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