公开(公告)号：US20070089705A1

公开(公告)日：2007-04-26

申请号：US11470037

申请日：2006-09-05

申请人： David Reuss ,  Tang-Wei Kuo

发明人： David Reuss ,  Tang-Wei Kuo

IPC分类号： F02B5/00 ,  F02B17/00 ,  F02B31/00

CPC分类号： F02D41/3041 ,  F02B23/101 ,  F02D2041/001 ,  F02P9/007 ,  Y02T10/125 ,  Y02T10/128

摘要： A powertrain, and a control method therefor, are provided, wherein ignition of a combustible charge in a combustion chamber of a controlled auto-ignition internal combustion engine equipped with in-cylinder fuel-injection and a spark ignition device is controlled. The method comprises generating a spark-discharge plasma channel between the electrodes of the spark ignition device, and igniting the combustible charge. The spark-discharge plasma channel is moved toward and entrained by the combustible charge, effective to advance phasing of controlled auto-ignition combustion.

摘要翻译： 提供了一种动力总成及其控制方法，其中控制了配备有缸内燃料喷射的控制自动点火内燃机和火花点火装置的燃烧室中的可燃电荷的点火。 该方法包括在火花点火装置的电极之间产生火花放电等离子体通道，并点燃可燃电荷。 火花放电等离子体通道被可燃电荷移动并夹带，有效地推动受控自动点火燃烧的定相。

公开(公告)号：US07150250B2

公开(公告)日：2006-12-19

申请号：US10899443

申请日：2004-07-26

申请人： Tang-Wei Kuo ,  Barry L. Brown

发明人： Tang-Wei Kuo ,  Barry L. Brown

IPC分类号： F02B3/00 ,  F02B75/02

CPC分类号： F02D13/0215 ,  F02B1/12 ,  F02B2075/027 ,  F02B2075/125 ,  F02D13/0234 ,  F02D13/0265 ,  F02D13/0273 ,  F02D41/402 ,  Y02T10/121 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/44

摘要： Low load operating point for a controlled auto-ignition four-stroke internal combustion engine is reduced without compromising combustion stability through a valve control operative to establish sub-atmospheric pressure conditions within the combustion chamber into which fuel and exhaust gases are introduced. A split-injection control operative to introduce a first fuel fraction into the combustion chamber during an intake stroke and a second fuel fraction into the combustion chamber during a compression event, in combination with the valve control, provides further reductions in low load operating points without compromising combustion stability.

摘要翻译： 用于受控自动点火四冲程内燃机的低负载工作点被减少，而不会通过阀控制而不损害燃烧稳定性，该阀控制用于在引入燃料和废气的燃烧室内建立次大气压力条件。 分离喷射控制可操作以在进气冲程期间将第一燃料分数引入燃烧室，并且在压缩事件期间将第二燃料分数引入燃烧室，与阀门控制相结合，进一步降低了低负荷运行点，而没有 危及燃烧稳定性。

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：US07021277B2

公开(公告)日：2006-04-04

申请号：US10899456

申请日：2004-07-26

申请人： Tang-Wei Kuo ,  Barry L. Brown ,  Paul M. Najt ,  James A. Eng

发明人： Tang-Wei Kuo ,  Barry L. Brown ,  Paul M. Najt ,  James A. Eng

IPC分类号： F02B3/04 ,  F02M25/07

CPC分类号： F02D13/0215 ,  F02B1/12 ,  F02B2075/027 ,  F02B2075/125 ,  F02D13/0219 ,  F02D13/0265 ,  F02D13/0273 ,  F02D41/3041 ,  F02D41/402 ,  F02M26/01 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/44

摘要： Part load operating point for a controlled auto-ignition four-stroke internal combustion engine is reduced without compromising combustion stability through load dependent valve controls and fueling strategies. Optimal fuel economy is achieved by employing negative valve overlap to trap and re-compress combusted gases below a predetermined engine load and employing exhaust gas re-breathing above the predetermined engine load. Split-injection fuel controls are implemented during low and intermediate part load operation whereas a single-injection fuel control is implemented during high part load operation. Split-injections are characterized by lean fuel/air ratios and single-injections are characterized by either lean or stoichiometric fuel/air ratios. Controlled autoignition is thereby enabled through an extended range of engine loads while maintaining acceptable combustion stability and emissions at optimal fuel economy.

摘要翻译： 受控自动点火四冲程内燃机的零件负载工作点在不影响通过负载相关阀控制和加油策略的燃烧稳定性的同时减少。 通过使用负阀重叠来捕获并重新压缩低于预定发动机负荷的燃烧气体并且使用在预定发动机负载上方重新呼吸的排气来实现最佳燃料经济性。 在低和中间部分负载操作期间实施分体喷射燃料控制，而在高部分负载操作期间实施单次喷射燃料控制。 分离注射的特征在于贫燃料/空气比，单次注射的特征在于稀燃或化学计量的燃料/空气比。 因此，通过扩展的发动机负载范围可实现受控自燃，同时在最佳燃油经济性的同时保持可接受的燃烧稳定性和排放。

公开(公告)号：US20060005804A1

公开(公告)日：2006-01-12

申请号：US10997661

申请日：2004-11-24

申请人： Tang-Wei Kuo ,  Barry Brown ,  James Eng ,  Paul Najt

发明人： Tang-Wei Kuo ,  Barry Brown ,  James Eng ,  Paul Najt

IPC分类号： F02B17/00

CPC分类号： F02D41/3047 ,  F02B1/12 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0207 ,  F02D13/0242 ,  F02D13/0265 ,  F02D13/0273 ,  F02D41/006 ,  F02D41/402 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/13 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A method is disclosed for expanding the mid load operation limit in a four-stroke gasoline direct-injection controlled auto-ignition combustion engine. A system is employed for variably actuating the intake and exhaust valves and for operating the valves with an exhaust re-compression or exhaust re-breathing valve strategy. A spark plug is provided. A fuel injector having multiple injection capability is employed. A first fuel charge is injected into the combustion chamber to form a lean air-fuel mixture. A second fuel charge is injected into the combustion chamber to form a stratified air-fuel mixture having an ignitable mixture located near the spark plug. The ignitable mixture is ignited at the spark gap, thereby causing spark-ignition combustion that causes a sufficient increase in chamber pressure and temperature to trigger auto-ignition of the lean air-fuel mixture, resulting in the obtaining of a higher engine load before a pressure rise rate in the combustion chamber exceeds a prescribed threshold value.

摘要翻译： 公开了一种用于扩大四冲程汽油直喷式自动点火内燃机的中负荷运行极限的方法。 采用系统来可变地致动进气门和排气门，并且用排气再压缩或排气再呼吸阀策略操作阀。 提供火花塞。 采用具有多个喷射能力的燃料喷射器。 将第一燃料装料注入到燃烧室中以形成稀薄的空气 - 燃料混合物。 第二燃料装料被注入到燃烧室中以形成具有位于火花塞附近的可燃混合物的分层空气 - 燃料混合物。 可点燃的混合物在火花隙处点燃，从而引起火花点火燃烧，导致室压力和温度的充分增加，以引起稀空燃混合物的自动点火，导致在一个 燃烧室内的压力上升率超过规定的阈值。

公开(公告)号：US20050000478A1

公开(公告)日：2005-01-06

申请号：US10611845

申请日：2003-07-01

申请人： Tang-Wei Kuo ,  Barry Brown ,  James Eng ,  Paul Najt

发明人： Tang-Wei Kuo ,  Barry Brown ,  James Eng ,  Paul Najt

IPC分类号： F02B1/12 ,  F02B41/00 ,  F02B75/02 ,  F02B75/12 ,  F02D13/02 ,  F02D41/30 ,  F01L1/34

CPC分类号： F02D13/0215 ,  F02B1/12 ,  F02B41/00 ,  F02B75/02 ,  F02B2075/027 ,  F02B2075/125 ,  F02D13/0246 ,  F02D13/0265 ,  F02D13/0273 ,  F02D41/3035 ,  F02D2041/001 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02M26/01 ,  Y02T10/18

摘要： Low load operating point for a controlled auto-ignition four-stroke internal combustion engine is reduced without compromising combustion stability through a valve control operative to establish sub-atmospheric pressure conditions within the combustion chamber into which fuel and exhaust gases are introduced.

摘要翻译： 用于受控自动点火四冲程内燃机的低负载工作点被减少，而不会通过阀控制而不损害燃烧稳定性，该阀控制用于在引入燃料和废气的燃烧室内建立次大气压力条件。

公开(公告)号：US06588396B1

公开(公告)日：2003-07-08

申请号：US10061724

申请日：2002-02-01

申请人： David J. Cleary ,  Tang-Wei Kuo ,  Paul M. Najt ,  Rodney Brewer Rask ,  Arun Sushilkumar Paulraj Solomon ,  Andreas M. Lippert ,  Gerald Andrew Szekely, Jr.

发明人： David J. Cleary ,  Tang-Wei Kuo ,  Paul M. Najt ,  Rodney Brewer Rask ,  Arun Sushilkumar Paulraj Solomon ,  Andreas M. Lippert ,  Gerald Andrew Szekely, Jr.

IPC分类号： F02F326

CPC分类号： F02F3/26 ,  F02B23/104 ,  F02B2075/125 ,  F02F1/4214 ,  F02M69/045 ,  Y02T10/123 ,  Y02T10/125

摘要： The present invention provides a fuel injector mounted on a side of a combustion chamber and delivers an ovalized fuel spray toward an oblong piston bowl of the chamber. The ovality of the spray is selected in relation to the oblong piston bowl and the motion of the combustion chamber air charge during the piston compression stroke to maintain the fuel charge within the piston bowl volume (including the space above the bowl) during compression and combustion of the fuel charge in the chamber. The shape of the oval spray may be adjusted as desired. In a specific embodiment, the ovality of the fuel spray indicated by the ratio of the major dimension to the minor dimension is in the range of about 2/1 to 4/1 for delivery into an oblong piston bowl with an ovality of about 1.2/1 to 1.5/1.

摘要翻译： 本发明提供一种燃料喷射器，其安装在燃烧室的一侧并将椭圆形的燃料喷雾朝着腔室的长方形活塞碗输送。 在活塞压缩行程期间，相对于长方形活塞碗和燃烧室空气充气的运动选择喷雾的椭圆度，以在压缩和燃烧期间将燃料充量保持在活塞碗体积内（包括碗上方的空间） 的燃料电荷。 可以根据需要调节椭圆形喷雾的形状。 在具体实施例中，由主尺寸与次尺寸的比率指示的燃料喷雾的椭圆度在约2/1至4/1的范围内，用于输送到椭圆形为约1.2 / 1〜1.5 / 1。