公开(公告)号：US06994072B2

公开(公告)日：2006-02-07

申请号：US10997661

申请日：2004-11-24

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

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

IPC: F02B17/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US07337762B2

公开(公告)日：2008-03-04

申请号：US11538085

申请日：2006-10-03

Applicant: James A. Eng ,  William R. Leppard ,  Paul M. Najt ,  Tang-Wei Kuo

Inventor： James A. Eng ,  William R. Leppard ,  Paul M. Najt ,  Tang-Wei Kuo

IPC: F02B5/00 ,  F02D41/40

CPC classification number: F01L1/34 ,  F02D13/0265 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0052 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/40 ,  F02D2041/001 ,  F02M26/01 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/47

Abstract: Operation of a homogeneous charge compression ignition engine is adapted to fuel variations. A variable valve actuating system is employed to effect conditions conducive to homogeneous charge compression ignition operation. Nominal valve timing is selected and adjustments thereto are made based on deviations in combustion phasing from a desired combustion phasing. Fuel delivery timing and quantity are adjusted once valve timing authority limits are reached to achieve further combustion phasing improvement.

Abstract translation: 均质充气压缩点火发动机的操作适于燃料变化。 采用可变阀致动系统来实现有利于均匀充气压缩点火操作的条件。 选择标称气门正时，并根据期望的燃烧定相的燃烧定相的偏差进行调节。 一旦达到阀门限位限制，燃油分配时间和数量就进行了调整，以达到进一步的燃烧阶段改进。

公开(公告)号：US07228839B2

公开(公告)日：2007-06-12

申请号：US11172505

申请日：2005-06-30

Applicant: Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Barry L. Brown ,  Chen-Fang Chang ,  Jun-Mo Kang

Inventor： Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Barry L. Brown ,  Chen-Fang Chang ,  Jun-Mo Kang

IPC: F01L1/34 ,  F02B3/00 ,  F02M25/07

CPC classification number: F02D41/3076 ,  F01L1/34 ,  F01L13/0015 ,  F02B1/12 ,  F02B2075/125 ,  F02D13/0215 ,  F02D13/0219 ,  F02D13/0234 ,  F02D13/0249 ,  F02D13/0265 ,  F02D13/0273 ,  F02D35/027 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/1461 ,  F02D41/1462 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/001 ,  F02M26/01 ,  Y02T10/18 ,  Y02T10/47

Abstract: A four-stroke internal combustion engine is operated in controlled auto-ignition mode by any of a variety of valve control strategies conducive to controlled auto-ignition conditions in conjunction with in-cylinder fuel charges that are at either stoichiometric or lean of stoichiometric air-fuel ratios. A measure of engine NOx emission is provided and when it crosses a predetermined threshold, the in-cylinder fuel charge is transitioned from the operative one of the stoichiometric or lean of stoichiometric air-fuel ratios to the inoperative one of the stoichiometric or lean of stoichiometric air-fuel ratios.

Abstract translation: 四冲程内燃机以受控的自动点火模式通过各种阀门控制策略运行，这些阀门控制策略有助于受控的自动点火条件以及理论空燃比的理想空燃比， 燃油比。 提供发动机NOx排放的量度，当其超过预定阈值时，缸内燃料电荷从理论空燃比的理论空燃比或者理想空燃比转化为化学计量或化学计量偏差 空燃比。

公开(公告)号：US07152559B2

公开(公告)日：2006-12-26

申请号：US10899442

申请日：2004-07-26

Applicant: Tang-Wei Kuo ,  Barry L. Brown ,  Paul M. Najt ,  James A. Eng ,  David J. Cleary

Inventor： Tang-Wei Kuo ,  Barry L. Brown ,  Paul M. Najt ,  James A. Eng ,  David J. Cleary

IPC: F02B3/04 ,  F02M25/07

CPC classification number: F02D13/0207 ,  F02B1/12 ,  F02B2075/027 ,  F02B2075/125 ,  F02D13/0238 ,  F02D13/0242 ,  F02D13/0273 ,  F02D41/402 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44

Abstract: Part 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 low pressure conditions within the combustion chamber into which fuel and exhaust gases are introduced. Combustion chamber pressures during the intake cycle are controlled lower as engine load decreases. Combusted gases are recirculated into the combustion chamber through a variety of internal and external recirculation mechanizations. A split-injection fuel control is implemented during low part load operation whereas a single-injection fuel control is implemented during intermediate and 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.

Abstract translation: 受控自动点火四冲程内燃机的部分负载工作点在不损害燃烧稳定性的情况下被减少，通过阀门控制来操作，以便在引入燃料和废气的燃烧室内建立低压条件。 进气循环期间的燃烧室压力随着发动机负荷的降低而受到控制。 燃烧的气体通过各种内部和外部再循环机械化再循环进入燃烧室。 在低部分负载操作期间实施分体喷射燃料控制，而在中部和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能够实现受控自燃，同时保持可接受的燃烧稳定性和排放。

公开(公告)号：US07370633B2

公开(公告)日：2008-05-13

申请号：US11366217

申请日：2006-03-02

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

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

IPC: F02B47/08 ,  F02M51/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07128062B2

公开(公告)日：2006-10-31

申请号：US11064320

申请日：2005-02-23

Applicant: Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Junseok Chang ,  Zoran S. Filipi ,  Dionissios N. Assanis ,  Orgun A. Guralp

Inventor： Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Junseok Chang ,  Zoran S. Filipi ,  Dionissios N. Assanis ,  Orgun A. Guralp

IPC: F02M25/07 ,  F02B3/08 ,  F02B75/10 ,  G06F19/00

CPC classification number: F02D13/0207 ,  F02B1/12 ,  F02B23/101 ,  F02B31/085 ,  F02B2023/108 ,  F02B2075/125 ,  F02D13/0246 ,  F02D13/0273 ,  F02D41/3035 ,  F02M26/01 ,  Y02T10/123 ,  Y02T10/18

Abstract: A method is disclosed for expanding the mid load range of a four-stroke gasoline direct-injection controlled auto-ignition combustion engine. The engine includes at least one cylinder containing a piston reciprocably connected with a crank and defining a variable volume combustion chamber including an intake valve controlling communication with an air intake and an exhaust valve controlling communication with an exhaust outlet. A system is employed for variably actuating the intake and exhaust valves. The valve actuating system is employable to operate the intake and exhaust valves with an exhaust re-compression or an exhaust re-breathing valve strategy. A reservoir chamber in communication with the combustion chamber is provided for temporary holding of residual burned gas. Residual burned gas in the combustion chamber and the exhaust outlet enters into the reservoir chamber and then loses thermal energy while in the reservoir chamber before being drawn back into the combustion chamber.

Abstract translation: 公开了一种用于扩大四冲程汽油直喷式控制自点火内燃机的中间载荷范围的方法。 发动机包括至少一个缸体，该缸体包括与曲柄往复运动的活塞，并且限定可变体积燃烧室，该燃烧室包括控制与进气口连通的进气门和控制与排气出口连通的排气门。 采用系统来可变地致动进气门和排气门。 阀致动系统可用于利用排气再压缩或排气再呼吸阀策略操作进气门和排气门。 提供与燃烧室连通的储存室用于暂时保持残留的燃烧气体。 燃烧室中的残余燃烧气体和排气出口进入储存室，然后在被抽回燃烧室之前在储存室中失去热能。

公开(公告)号：US07004124B2

公开(公告)日：2006-02-28

申请号：US10611845

申请日：2003-07-01

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

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

IPC: F01L1/34

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US06971365B1

公开(公告)日：2005-12-06

申请号：US10987523

申请日：2004-11-12

Applicant: Paul M. Najt ,  Tang-Wei Kuo ,  David J. Cleary ,  James A. Eng ,  Barry L. Brown

Inventor： Paul M. Najt ,  Tang-Wei Kuo ,  David J. Cleary ,  James A. Eng ,  Barry L. Brown

IPC: F02B1/12 ,  F02B5/00 ,  F02B23/10 ,  F02B75/12 ,  F02D13/02 ,  F02D41/30 ,  F02D41/40 ,  F02F1/24 ,  F02M25/07

CPC classification number: F02D13/0215 ,  F02B1/12 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0253 ,  F02D13/0265 ,  F02D13/0273 ,  F02D41/3035 ,  F02D41/3041 ,  F02D41/402 ,  F02F1/242 ,  F02M26/01 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/18

Abstract: A combustion chamber for an internal combustion engine includes a closed end cylinder having an axis. A piston is reciprocable in the cylinder and includes a generally flat rim having an inner edge surrounding a recessed bowl into which the fuel is primarily injected, the bowl having a floor and a surrounding side formed by an arcuate surface connecting tangentially with the floor and extending to the rim inner edge.A spark plug has a centerline through the spark gap and is offset to one side of the cylinder axis with the spark gap extending into the combustion chamber toward the axis. A fuel injector is offset to an opposite side of the axis with the spray tip aimed to direct a generally conical fuel spray into the piston bowl with a portion of the fuel spray passing near the spark gap. Various dimensional characteristics are disclosed.

Abstract translation: 用于内燃机的燃烧室包括具有轴线的封闭端筒。 活塞可在气缸中往复运动并且包括大致平坦的边缘，该边缘具有围绕着凹入的碗的内边缘，燃料主要被注入到其中，碗具有由与地板切向连接并延伸的弓形表面形成的地板和围绕侧面 到边缘内缘。 火花塞具有穿过火花隙的中心线，并且在气缸轴线的一侧偏移，而火花隙延伸到燃烧室中朝向轴线。 燃料喷射器偏移到轴线的相对侧，喷射尖端旨在将一般为锥形的燃料喷雾引导到活塞碗中，一部分燃料喷雾通过火花隙附近。 公开了各种尺寸特性。

公开(公告)号：US6106619A

公开(公告)日：2000-08-22

申请号：US47768

申请日：1998-03-25

Applicant: James A. Eng

Inventor： James A. Eng

IPC: B05C3/18 ,  B05C11/02 ,  D21H23/32 ,  D21H25/12 ,  B05C3/02

CPC classification number: B05C11/025 ,  D21H23/32 ,  B05C3/18 ,  D21H25/12

Abstract: A coater for applying a coating medium to a moving surface includes a mounting; a coater rod bed connected to the mounting; and a coater rod carried by the coater rod bed. The coater rod is configured for applying the coating medium to the moving surface, and includes a hollow rod with a longitudinal bore interconnecting opposite ends thereof. A pair of fluid couplings are respectively attached to each end of the coater rod. Each fluid coupling has an internal fluid passage which is disposed in fluid communication with the longitudinal bore of the coater rod, whereby a thermal transfer fluid may be transported through the longitudinal bore of the coater rod.

Abstract translation: 用于将涂布介质施加到移动表面的涂布机包括安装件; 连接到安装件的涂布机杆床; 以及由涂布机杆床承载的涂布机杆。 涂布机杆被配置为将涂覆介质施加到移动表面，并且包括具有互连其相对端的纵向孔的中空杆。 一对流体联轴器分别连接在涂布机杆的每一端。 每个流体联接器具有内部流体通道，其设置成与涂布机杆的纵向孔流体连通，由此传热流体可以通过涂布机棒的纵向孔传送。

公开(公告)号：US07637251B2

公开(公告)日：2009-12-29

申请号：US12048477

申请日：2008-03-14

Applicant: Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Rodney B. Rask ,  Orgun A. Guralp ,  Zoran S. Filipi ,  Dionissios N. Assanis ,  Mark A. Hoffman

Inventor： Tang-Wei Kuo ,  Paul M. Najt ,  James A. Eng ,  Rodney B. Rask ,  Orgun A. Guralp ,  Zoran S. Filipi ,  Dionissios N. Assanis ,  Mark A. Hoffman

IPC: F02B5/00 ,  G01L3/26

CPC classification number: F02B23/0672 ,  F02D13/0234 ,  F02D35/02 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/18

Abstract: A method to dynamically determine a parametric value for combustion chamber deposits (CCD), e.g. in a controlled auto-ignition engine, including in-situ evaluation of thickness of CCD, based on a sensor which monitors combustion in a homogeneous charge compression ignition engine. It includes a temperature sensor operative to monitor the combustion chamber, and a CCD parameter that is based upon a peak combustion temperature measured at a crank angle. A CCD parameter can also be determined utilizing an in-cylinder pressure monitor, wherein a combustion chamber deposit parameter is based upon crank angle location of a peak in-cylinder pressure parameter.

Abstract translation: 动态确定燃烧室沉积物（CCD）的参数值的方法，例如， 在受控自动点火发动机中，包括基于监测均质充气压缩点火发动机中的燃烧的传感器的CCD的厚度现场评估。 它包括用于监测燃烧室的温度传感器和基于在曲柄角度下测量的峰值燃烧温度的CCD参数。 也可以使用缸内压力监测器来确定CCD参数，其中燃烧室沉积参数基于峰值缸内压力参数的曲柄角位置。