公开(公告)号：US07644688B2

公开(公告)日：2010-01-12

申请号：US11417097

申请日：2006-05-03

申请人： Craig D. Marriott ,  Zongxuan Sun

发明人： Craig D. Marriott ,  Zongxuan Sun

IPC分类号： F01L9/02

CPC分类号： F01L9/02 ,  Y10T137/86622

摘要： A valve actuator assembly for an engine includes a movable poppet valve, and movable first and second spool valves. The assembly also includes an intermediate channel interconnecting the first and second spool valve, a driving channel, and a first and second feedback channel interconnecting the second spool valve and the poppet valve. The valve actuator assembly includes an actuator cooperating with the first spool valve to position the first spool valve to selectively allow high pressure fluid flow to the second spool valve and the driving channel to position the engine valve. The valve actuator assembly further includes a first and second on/off valve in respective fluid communication with the first feedback channel and the second feedback channel to selectively exhaust the first and second feedback channel to control motion of the second spool valve. The second spool valve includes a detent feature operable to maintain the second spool valve in a center biased position.

摘要翻译： 用于发动机的阀致动器组件包括可动提升阀和可移动的第一和第二滑阀。 组件还包括互连第一和第二滑阀的中间通道，驱动通道以及互连第二滑阀和提升阀的第一和第二反馈通道。 阀致动器组件包括与第一滑阀配合的致动器，以定位第一滑阀以选择性地允许高压流体流向第二滑阀和驱动通道以定位发动机气门。 阀致动器组件还包括与第一反馈通道和第二反馈通道分别流体连通的第一和第二开/关阀，以选择性地排出第一和第二反馈通道以控制第二滑阀的运动。 第二滑阀包括可操作以将第二滑阀保持在中心偏置位置的止动特征。

公开(公告)号：US20060243241A1

公开(公告)日：2006-11-02

申请号：US11386203

申请日：2006-03-22

申请人： Tang-Wei Kuo ,  Zongxuan Sun ,  James Eng ,  Barry Brown ,  Paul Najt ,  Jun-Mo Kang ,  Chen-Fang Chang ,  Man-Feng Chang

发明人： Tang-Wei Kuo ,  Zongxuan Sun ,  James Eng ,  Barry Brown ,  Paul Najt ,  Jun-Mo Kang ,  Chen-Fang Chang ,  Man-Feng Chang

IPC分类号： F02B17/00 ,  F01L1/34 ,  F02M25/07 ,  F02B5/00

CPC分类号： F02D13/0261 ,  F01L13/00 ,  F02B1/12 ,  F02B17/00 ,  F02B2075/125 ,  F02D13/0203 ,  F02D13/0207 ,  F02D13/0265 ,  F02D13/0273 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0002 ,  F02D41/0052 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/402 ,  F02D2041/001 ,  F02M26/01 ,  Y02T10/123 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： The present invention relates to methods for robust controlled auto-ignition and spark ignited combustion controls in gasoline direct-injection engines, including transients, using either exhaust re-breathing or a combination of exhaust re-compression and re-breathing valve strategy. These methods are capable of enabling engine operation with either lean of stoichiometric or stoichiometric air/fuel ratio for oxides of nitrogen (NOx) control, with varying exhaust gas recirculation (EGR) rates and throttle valve positions for knock control, and with a combination of homogeneous charge compression ignition (HCCI) and spark ignition (SI) combustion modes to optimize fuel economy over a wide range of engine operating conditions.

摘要翻译： 本发明涉及用于汽油直喷发动机中稳健的受控自动点火和火花点火燃烧控制的方法，包括使用排气再呼吸或排气再压缩和再呼吸阀策略的组合的瞬变。 这些方法能够实现发动机运行，其中氮气（NOx）控制的氧化物的化学计量或化学计量空气/燃料比为贫，具有改变的废气再循环（EGR）速率和用于爆震控制的节气门位置，以及 均质充气压缩点火（HCCI）和火花点火（SI）燃烧模式，以在广泛的发动机运行条件下优化燃油经济性。

公开(公告)号：US20060236958A1

公开(公告)日：2006-10-26

申请号：US11341282

申请日：2006-01-27

申请人： Zongxuan Sun ,  Tang-Wei Kuo

发明人： Zongxuan Sun ,  Tang-Wei Kuo

IPC分类号： F01L9/02 ,  F01L1/34

CPC分类号： F01L1/2405 ,  F01L1/185 ,  F01L1/462 ,  F01L9/02

摘要： The present invention provides a valve actuation system for an internal combustion engine. The valve actuation system of the present invention may provide an increased range of auto-ignition operation by providing a valve re-opening mechanism to provide products of combustion into the cylinder to increase the thermal efficiency and stability of the auto-ignition combustion process. The present invention allows the poppet valve re-opening timing, lift and duration to be tailored to specific engine architecture and operating conditions. Additionally, the present invention provides a method of re-opening a poppet valve of an internal combustion engine.

摘要翻译： 本发明提供一种用于内燃机的气门致动系统。 本发明的阀致动系统可以通过提供阀重新打开机构来提供自动点火操作的增加范围，以将燃烧产物提供到气缸中，以提高自动点火燃烧过程的热效率和稳定性。 本发明允许根据具体的发动机结构和操作条件来调整提升阀重新打开的正时，升程和持续时间。 另外，本发明提供一种重新打开内燃机的提升阀的方法。

公开(公告)号：US20060196468A1

公开(公告)日：2006-09-07

申请号：US11367047

申请日：2006-03-02

申请人： Chen-Fang Chang ,  Zongxuan Sun ,  Jun-Mo Kang ,  Tang-Wei Kuo ,  James Eng ,  Barry Brown ,  Paul Najt ,  Man-Feng Chang

发明人： Chen-Fang Chang ,  Zongxuan Sun ,  Jun-Mo Kang ,  Tang-Wei Kuo ,  James Eng ,  Barry Brown ,  Paul Najt ,  Man-Feng Chang

IPC分类号： F02D43/00

CPC分类号： F02D41/3035 ,  F02B1/12 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0219 ,  F02D13/0265 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/005 ,  F02D41/2416 ,  F02D41/3064 ,  F02D41/401 ,  F02D41/402 ,  F02D2041/141 ,  F02M26/01 ,  F02M26/13 ,  Y02T10/123 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/44

摘要： A direct injection controlled auto-ignition engine is operated at steady state, within a homogeneous charge compression-ignition (HCCI) load range and with fuel-air-diluent mixtures at predetermined conditions, for each speed and load, of engine control inputs, including at least injection timing (FI), spark timing (SI), throttle position, exhaust gas recirculation (EGR) valve setting and exhaust recompression obtained by negative valve overlap (NVO). During engine speed transients, the control inputs are synchronized to changes in the current engine speed, and also with any concurrent changes in the engine fueling rate. Inputs that are inactive during all or part of a speed change have a zero change rate while inactive. The method maintains robust auto-ignition combustion during speed transients with constant or variable fueling rates and with or without load changes.

摘要翻译： 直喷式控制自动点火发动机在均匀充气压缩点火（HCCI）负载范围内以及燃料 - 空气 - 稀释剂混合物在预定条件下对于发动机控制输入的每个速度和负载运行，包括 至少喷气正时（FI），火花正时（SI），节气门位置，废气再循环（EGR）阀设定和通过负阀重叠（NVO）获得的排气再压缩。 在发动机转速瞬变期间，控制输入与当前发动机转速的变化同步，以及发动机加油速率的任何并发变化。 在全部或部分速度变化期间无效的输入在无效时具有零变化率。 该方法在具有恒定或可变加油速率和有或没有负载变化的速度瞬变期间保持稳定的自点火燃烧。

公开(公告)号：US20060196466A1

公开(公告)日：2006-09-07

申请号：US11367045

申请日：2006-03-02

申请人： Tang-Wei Kuo ,  Zongxuan Sun ,  Jun-Mo Kang ,  James Eng ,  Chen-Fang Chang ,  Barry Brown ,  Paul Najt ,  Man-Feng Chang

发明人： Tang-Wei Kuo ,  Zongxuan Sun ,  Jun-Mo Kang ,  James Eng ,  Chen-Fang Chang ,  Barry Brown ,  Paul Najt ,  Man-Feng Chang

IPC分类号： F02B17/00 ,  F02B5/00 ,  F02M25/07 ,  F01L1/34

CPC分类号： F01L1/344 ,  F01L13/0015 ,  F02B1/12 ,  F02B17/005 ,  F02D11/10 ,  F02D13/0207 ,  F02D13/0219 ,  F02D13/0265 ,  F02D41/005 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/402 ,  F02D2041/001 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/42

摘要： A method is provided for control of transition between combustion modes of a direct-injection engine operable in a homogeneous charge compression ignition (HCCI) mode at lower loads and a spark ignition flame propagation (SI) mode at higher loads. The engine includes a variable valve actuation system including two-step high and low lift valve actuation and separate cam phasing for both intake and exhaust valves. The method includes operating the engine at steady state, with fuel-air-exhaust gas mixtures at predetermined conditions, for each speed and load, and controlling the engine during mode changes between the HCCI mode and the SI mode by switching the exhaust and intake valves between low lift for HCCI operation and high lift for SI operation. High load may be an SI throttled mode with an intermediate unthrottled mode (SI/NTLC} in which transition between HCCI and SI/NTLC modes requires switching only the exhaust valve lift and transition between SI/NTLC and SI throttled modes requires switching only the intake valve lift, with predetermined phase adjustments in the valve timing phasing.

摘要翻译： 提供了一种用于控制在较低负载下以均质充气压缩点火（HCCI）模式操作的直喷式发动机的燃烧模式之间的过渡和在较高负载下的火花点火火焰传播（SI）模式下的过渡的方法。 发动机包括可变气门驱动系统，其包括两步高和低升程气门致动以及用于进气门和排气门的单独的凸轮定相。 该方法包括：对于每个速度和负载，在预定条件下以稳定状态操作发动机，并且在HCCI模式和SI模式之间的模式转换期间通过切换排气和进气门来控制发动机 在HCCI操作的低电梯和SI操作的高电梯之间。 高负载可能是具有中间非节流模式（SI / NTLC）的SI节流模式，其中HCCI和SI / NTLC模式之间的转换只需要切换排气门升程，SI / NTLC和SI节流模式之间的转换只需要切换进气 气门升程，在气门正时相定相调整。

公开(公告)号：US20070256651A1

公开(公告)日：2007-11-08

申请号：US11417097

申请日：2006-05-03

申请人： Craig Marriott ,  Zongxuan Sun

发明人： Craig Marriott ,  Zongxuan Sun

IPC分类号： F01L9/02

CPC分类号： F01L9/02 ,  Y10T137/86622

摘要： A valve actuator assembly for an engine includes a movable poppet valve, and movable first and second spool valves. The assembly also includes an intermediate channel interconnecting the first and second spool valve, a driving channel, and a first and second feedback channel interconnecting the second spool valve and the poppet valve. The valve actuator assembly includes an actuator cooperating with the first spool valve to position the first spool valve to selectively allow high pressure fluid flow to the second spool valve and the driving channel to position the engine valve. The valve actuator assembly further includes a first and second on/off valve in respective fluid communication with the first feedback channel and the second feedback channel to selectively exhaust the first and second feedback channel to control motion of the second spool valve. The second spool valve includes a detent feature operable to maintain the second spool valve in a center biased position.

摘要翻译： 用于发动机的阀致动器组件包括可动提升阀和可移动的第一和第二滑阀。 组件还包括互连第一和第二滑阀的中间通道，驱动通道以及互连第二滑阀和提升阀的第一和第二反馈通道。 阀致动器组件包括与第一滑阀配合的致动器，以定位第一滑阀以选择性地允许高压流体流向第二滑阀和驱动通道以定位发动机气门。 阀致动器组件还包括与第一反馈通道和第二反馈通道分别流体连通的第一和第二开/关阀，以选择性地排出第一和第二反馈通道以控制第二滑阀的运动。 第二滑阀包括可操作以将第二滑阀保持在中心偏置位置的止动特征。

公开(公告)号：US07040266B1

公开(公告)日：2006-05-09

申请号：US11206603

申请日：2005-08-18

申请人： Zongxuan Sun ,  Rodney B. Rask

发明人： Zongxuan Sun ,  Rodney B. Rask

IPC分类号： F01L1/34

CPC分类号： F01L9/02

摘要： Electro-hydraulic engine valve actuation system providing an actuator and an actuator control system. The actuator includes primary and secondary actuation chambers, defined by a piston, connected to the engine valve, and characterized by increasing and correspondingly decreasing chamber volumes, as the piston is urged away from neutral position. A fluid inlet is connected to a flow control valve. A control valve includes an actuator, and has flow states for controlling flow between two fluid inlets and a fluid outlet. The control valve includes first and second opposed, control chambers, each connected to the actuator. There is a spring in the second control chamber. The actuator of the flow control valve is controlled to a first and second state, and there is an electrically uncontrolled third flow state. There is a pair of temperature-compensated orifices which create internal feedback, with the control chambers, between the engine valve motion and the control valve position.

摘要翻译： 提供致动器和致动器控制系统的电动液压发动机气门致动系统。 致动器包括由活塞限定的主动和辅助致动腔室，其连接到发动机气门，并且其特征在于当活塞被迫远离中立位置时增加并相应地减小腔室容积。 流体入口连接到流量控制阀。 控制阀包括致动器，并且具有用于控制两个流体入口和流体出口之间的流动的流动状态。 控制阀包括第一和第二相对的控制室，每个都连接到致动器。 第二个控制室内有一个弹簧。 流量控制阀的致动器被控制到第一和第二状态，并且存在电不受控制的第三流动状态。 有一对温度补偿孔，通过控制室在发动机气门运动和控制阀位置之间产生内部反馈。

公开(公告)号：US06918360B2

公开(公告)日：2005-07-19

申请号：US10405965

申请日：2003-04-02

申请人： Zongxuan Sun ,  Norman Kenneth Bucknor ,  Jie Tong

发明人： Zongxuan Sun ,  Norman Kenneth Bucknor ,  Jie Tong

IPC分类号： F01L9/02

CPC分类号： F01L9/02

摘要： A valve actuator assembly for an engine includes a movable engine valve and a movable spool valve. The valve actuator assembly also includes a driving channel interconnecting the spool valve and the engine valve and a feedback channel interconnecting the spool valve and the engine valve. The valve actuator assembly includes an actuator operatively cooperating with the spool valve to position the spool valve to prevent and allow fluid flow in and out of the driving channel to position the engine valve. The valve actuator assembly further includes an on/off valve in fluid communication with the feedback channel to enable and disable the feedback channel to control motion of the spool valve.

摘要翻译： 用于发动机的阀致动器组件包括可动发动机阀和可动滑阀。 阀致动器组件还包括将滑阀和发动机气门相互连接的驱动通道以及将滑阀和发动机阀互连的反馈通道。 阀致动器组件包括与滑阀可操作地配合的致动器以定位滑阀，以防止和允许流体流入和流出驱动通道以定位发动机气门。 阀致动器组件还包括与反馈通道流体连通的开/关阀，以启用和禁用反馈通道来控制滑阀的运动。

公开(公告)号：US07665431B2

公开(公告)日：2010-02-23

申请号：US11548297

申请日：2006-10-11

申请人： Zongxuan Sun

发明人： Zongxuan Sun

IPC分类号： F01L9/02

CPC分类号： F01L9/02

摘要： A drive piston assembly is provided that is operable to selectively open a poppet valve. The drive piston assembly includes a cartridge defining a generally stepped bore. A drive piston is movable within the generally stepped bore and a boost sleeve is coaxially disposed with respect to the drive piston. A main fluid chamber is at least partially defined by the generally stepped bore, drive piston, and boost sleeve. First and second feedback chambers are at least partially defined by the drive piston and each are disposed at opposite ends of the drive piston. At least one of the drive piston and the boost sleeve is sufficiently configured to move within the generally stepped bore in response to fluid pressure within the main fluid chamber to selectively open the poppet valve. A valve actuator assembly and engine are also provided incorporating the disclosed drive piston assembly.

摘要翻译： 提供了可操作以选择性地打开提升阀的驱动活塞组件。 驱动活塞组件包括限定大致阶梯孔的筒。 驱动活塞可在大体上阶梯形的孔内移动，并且升压套筒相对于驱动活塞同轴设置。 主流体室至少部分地由大体上阶梯形的孔，驱动活塞和升压套筒限定。 第一和第二反馈室至少部分地由驱动活塞限定，并且各自设置在驱动活塞的相对端。 驱动活塞和升压套筒中的至少一个被充分地构造成响应于主流体室内的流体压力在大致阶梯形的孔内移动，以选择性地打开提升阀。 还提供了结合所公开的驱动活塞组件的阀致动器组件和发动机。

公开(公告)号：US07370633B2

公开(公告)日：2008-05-13

申请号：US11366217

申请日：2006-03-02

申请人： Jun-Mo Kang ,  Chen-Fang Chang ,  Zongxuan Sun ,  Tang-Wei Kuo ,  James A. Eng ,  Barry L. Brown ,  Paul M. Najt ,  Man-Feng Chang

发明人： Jun-Mo Kang ,  Chen-Fang Chang ,  Zongxuan Sun ,  Tang-Wei Kuo ,  James A. Eng ,  Barry L. Brown ,  Paul M. Najt ,  Man-Feng Chang

IPC分类号： F02B47/08 ,  F02M51/00

CPC分类号： F02B47/08 ,  F02B1/12 ,  F02B23/101 ,  F02B2075/125 ,  F02B2275/14 ,  F02D9/02 ,  F02D13/0215 ,  F02D13/0219 ,  F02D13/0265 ,  F02D41/0052 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/107 ,  F02D41/126 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/402 ,  F02D2041/001 ,  F02D2041/141 ,  F02D2200/0614 ,  F02M26/01 ,  F02M26/13 ,  Y02T10/123 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/47

摘要： A direct injection controlled auto-ignition engine is operated at steady state, within a homogeneous charge compression-ignition (HCCI) load range and with fuel-air-diluent mixtures at predetermined conditions, for each speed and load, of engine control inputs, including at least fueling mass flow rate, injection timing (FI), spark timing (SI) and exhaust recompression obtained by negative valve overlap (NVO). During load change rates below a predetermined threshold, SI, FI and NVO change rates are synchronized to current changes in the fueling mass flow rate. For fast load increases above the threshold, the cylinder charge is temporarily enriched by increasing the percentage of residual gas or reducing the percentage of fresh air mass in the charge sufficiently to maintain auto-ignition temperature during the load change. This may be done by delaying NVO action for a predetermined speed-dependent number of engine cycles. At very low loads, stable fuel rate reduction may require an alternate method involving deceleration fuel cut-off followed by a step change during refire.

摘要翻译： 直喷式控制自动点火发动机在均匀充气压缩点火（HCCI）负载范围内以及燃料 - 空气 - 稀释剂混合物在预定条件下对于发动机控制输入的每个速度和负载运行，包括 至少燃料质量流量，喷射正时（FI），火花正时（SI）和通过负阀重叠获得的排气再压缩（NVO）。 在负载变化率低于预定阈值时，SI，FI和NVO变化率与加油质量流量当前的变化同步。 对于快速负载增加超过阈值，通过增加残余气体的百分比或减少充电中的新鲜空气质量百分比来充分地保持气缸充量，以在负载变化期间保持自燃温度，从而暂时增加气瓶充量。 这可以通过将NVO动作延迟到预定的速度相关数量的发动机循环来完成。 在非常低的负载下，稳定的燃油速率降低可能需要一种替代方法，包括减速燃料切断，然后在重新启动期间改变阶跃。