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1. 发明授权

US5868112A Deep angle injection nozzle and piston having complementary combustion bowl 失效
标题翻译：深角注射喷嘴和具有互补燃烧碗的活塞
公开(公告)号：US5868112A
公开(公告)日：1999-02-09
申请号：US770145
申请日：1996-12-19
申请人： Budhadeb Mahakul , David A. Bolis , George E. Crane
发明人： Budhadeb Mahakul , David A. Bolis , George E. Crane
IPC分类号： F02B3/06 , F02B23/06 , F02F1/24 , F02F3/26 , F02M61/14 , F02B31/00
CPC分类号： F02B23/0669 , F02B23/0696 , F02B2275/14 , F02B3/06 , F02F2001/247 , Y02T10/123 , Y02T10/125
摘要： A piston for reciprocal movement within a combustion chamber (4) of a compression ignition engine (2) having a fuel injector (20) for forming a fuel injection plume (40) having a relatively deep angle (7.degree. to 40.degree. from a plane perpendicular to the central axis of the combustion chamber) and a piston (8) having a centrally located symmetrical upwardly opening cavity for forming a combustion bowl (30) especially arranged to complement the plume in a manner to maintain very low entrainment of soot in the lubrication oil of the engine and to maintain other engine emissions, e.g., CO and smoke, within acceptable ranges suitable to meet TALuft standards. In particular, the combustion bowl (30) as formed by an upwardly opening cavity formed as a surface of revolution having a centrally raised floor section (42) with relatively large radius of curvature R.sup.1 and an upwardly flared outer bowl section 48 having relatively smaller radius of curvatures R.sub.2. The ratio of R.sub.2 divided by R.sub.1 is greater than 0.14 and less than or equal to 0.32. Other important dimensional relationships would apply.
摘要翻译：一种用于在具有燃料喷射器（20）的压缩点火式发动机（2）的燃烧室（4）内往复运动的活塞，用于形成具有相对较深的角度（距平面7°至40°）的燃料喷射羽流（40）垂直于燃烧室的中心轴线）和活塞（8），其具有位于中心的对称向上开口空腔，用于形成燃烧碗（30），该燃烧碗（30）特别地布置成以使得烟灰中的非常低的夹带量发动机的润滑油，并保持其他发动机排放，例如CO和烟雾，在适合达到TALuft标准的可接受范围内。特别地，由形成为旋转表面的向上开口腔形成的燃烧碗（30）具有具有相对较大曲率半径R1的中央凸起的地板部分（42）和具有相对较小半径的向上扩张的外碗部分48 的曲率R2。 R2除以R1的比例大于0.14且小于或等于0.32。其他重要的维度关系将适用。

2. 发明申请

US20150078975A1 NATURAL GAS ENGINE AFTERTREATMENT SYSTEM 审中-公开
标题翻译：天然气发动机后处理系统
公开(公告)号：US20150078975A1
公开(公告)日：2015-03-19
申请号：US14027364
申请日：2013-09-16
申请人： Budhadeb Mahakul
发明人： Budhadeb Mahakul
IPC分类号： F01N3/10 , B01D53/94
CPC分类号： F01N3/103 , B01D53/9486 , F01N3/035 , F01N3/0814 , F01N3/0835 , F01N3/101 , F01N3/106 , F01N3/2006 , F01N9/00 , F01N2240/36 , F01N2250/12 , F01N2260/14 , F01N2340/06 , F01N2370/04 , F01N2570/12 , F01N2900/1404 , F01N2900/1406 , F02M26/05 , F02M26/23 , Y02A50/2324 , Y02T10/22 , Y02T10/26 , Y02T10/47
摘要： Systems and methods for reducing methane in an aftertreatment system of a vehicle are described. An oxidation catalyst is disposed in an exhaust path between an engine block and a turbocharger. The oxidation catalyst stores methane in the exhaust gas from the engine block during low temperatures and oxidizes the stored methane during high temperatures. The temperatures at the oxidation catalyst are controlled, in part, by operating engine cycles and/or a back pressure valve that can adjust pressure in the exhaust path and/or increase engine load.
摘要翻译：描述了用于在车辆的后处理系统中降低甲烷的系统和方法。氧化催化剂设置在发动机缸体和涡轮增压器之间的排气路径中。氧化催化剂在低温下将甲烷储存在来自发动机缸体的排气中，并在高温下氧化储存的甲烷。氧化催化剂的温度部分地通过操作发动机循环和/或可以调节排气路径中的压力和/或增加发动机负荷的背压阀来控制。

3. 发明授权

US07025031B2 Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surface 有权
标题翻译：低排放燃料高效柴油机车发动机，其包括具有环形表面的活塞
公开(公告)号：US07025031B2
公开(公告)日：2006-04-11
申请号：US10476134
申请日：2002-04-27
申请人： Budhadeb Mahakul , Kenneth M. Sinko , Randal K. Albright , Frank M. Graczyk
发明人： Budhadeb Mahakul , Kenneth M. Sinko , Randal K. Albright , Frank M. Graczyk
IPC分类号： F02B3/00
CPC分类号： F02D13/00 , F02B3/06 , F02B23/0621 , F02B23/0696 , Y02T10/125 , Y02T10/18
摘要： A diesel locomotive engine having a piston with a unique bowl geometry. The bowl is defined in part by a center portion having a partial spherical shape. A cone portion (22) is located adjacent the central portion. An annular toroidal surface (24) is connected to the cone portion (22) and is defined by a toroidal major diameter (Dtm) and a toroidal minor radius (Rtm). A crown rim (26) is connected to the annular toroidal surface (24) and to an upper flat rim face of a sidewall.
摘要翻译：一种柴油机车发动机，具有独特的碗几何形状的活塞。碗部分由具有部分球形的中心部分限定。锥形部分（22）位于中心部分附近。环形环形表面（24）连接到锥形部分（22），并且由环形大直径（Dtm）和环形小半径（Rtm）限定。冠环（26）连接到环形环形表面（24）和侧壁的上平坦边缘面。

4. 发明授权

US07311086B2 Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surface 有权
标题翻译：低排放燃料高效柴油机车发动机，其包括具有环形表面的活塞
公开(公告)号：US07311086B2
公开(公告)日：2007-12-25
申请号：US11371119
申请日：2006-03-08
申请人： Budhadeb Mahakul , Kenneth M. Sinko , Randal K. Albright , Frank M. Graczyk
发明人： Budhadeb Mahakul , Kenneth M. Sinko , Randal K. Albright , Frank M. Graczyk
IPC分类号： F02M37/04
CPC分类号： F02D13/00 , F02B3/06 , F02B23/0621 , F02B23/0696 , Y02T10/125 , Y02T10/18
摘要： A diesel locomotive engine having a piston with a unique bowl geometry. The bowl is defined in part by a center portion having a partial spherical shape. A cone portion (22) is located adjacent the central portion. An annular toroidal surface (24) is connected to the cone portion (22) and is defined by a toroidal major diameter (Dtm) and a toroidal minor radius (Rtm). A crown rim (26) is connected to the annular toroidal surface (24) and to an upper flat rim face of a sidewall.
摘要翻译：一种柴油机车发动机，具有独特的碗几何形状的活塞。碗部分由具有部分球形的中心部分限定。锥形部分（22）位于中心部分附近。环形环形表面（24）连接到锥形部分（22），并且由环形大直径（Dtm）和环形小半径（Rtm）限定。冠环（26）连接到环形环形表面（24）和侧壁的上平坦边缘面。

5. 发明申请

US20050188944A1 Optimized low emission two-stroke internal combustion diesel engine 有权
标题翻译：优化低排放二冲程内燃柴油机
公开(公告)号：US20050188944A1
公开(公告)日：2005-09-01
申请号：US11010682
申请日：2004-12-13
申请人： Budhadeb Mahakul , Kenneth Sinko , Rafiqul Islam , Chih Liu , Frank Graczyk , Brent Valesano , Randal Albright
发明人： Budhadeb Mahakul , Kenneth Sinko , Rafiqul Islam , Chih Liu , Frank Graczyk , Brent Valesano , Randal Albright
IPC分类号： F02F3/26 , F02B23/06
CPC分类号： F02M61/1806 , B24B1/00 , B24B33/02 , F02B23/0621 , F02B23/0669 , F02B23/0696 , F02F1/20 , F02F3/26 , F02M61/1846 , Y02T10/125
摘要： An optimized two-stroke internal combustion diesel engine, suitable for locomotive applications, has been developed to meet the EPA locomotive Tier 2 emission standards. To achieve a low emission target below the EPA Tier 2 standards for NO, (5.5 g/bhp-hr) and particulates (0.2 g/bhp-hr), several innovative changes have been made to the engine. These changes include: a new piston bowl geometry; low oil consumption piston rings; optimized surface finish cylinder liner; optimized fuel injection camlobe; modified fuel injector nozzle; new efficient aftercooler; optimized oil separator; and optimized turbocharger.
摘要翻译：已经开发了适用于机车应用的优化二冲程内燃柴油机，以满足EPA机车二级排放标准。为了实现低于EPA Tier 2标准的NO（5.5g / bhp-hr）和颗粒（0.2g / bhp-hr）的低排放目标，对发动机进行了若干创新性改变。这些变化包括：一个新的活塞碗几何; 低油耗活塞环; 优化表面精加工气缸套; 优化燃油喷射凸轮; 改装燃油喷嘴; 新型高效后冷器; 优化油分离器; 和优化的涡轮增压器。

6. 发明授权

US06866028B2 Emission reduction kit for EMD diesel engines 有权
标题翻译： EMD柴油发动机减排套件
公开(公告)号：US06866028B2
公开(公告)日：2005-03-15
申请号：US10727351
申请日：2003-12-03
申请人： Budhadeb Mahakul , Verne E. Rezabek , Rafiqul Islam , Frank M. Graczyk , Chih L. Liu
发明人： Budhadeb Mahakul , Verne E. Rezabek , Rafiqul Islam , Frank M. Graczyk , Chih L. Liu
IPC分类号： F02B23/06 , F02B29/04 , F02M61/08
CPC分类号： F02B29/0443 , F02B23/0684 , F02B29/0412 , F02B29/0418 , F02B29/0437 , F02B29/0462 , F02B29/0475 , F02B29/0493 , Y02T10/125 , Y02T10/146
摘要： Engine reconfiguration kits are developed for NOx emission reduction in Electro-Motive Division of General Motors Corporation model 645 diesel engines. The kits feature improved unit fuel injectors providing better fuel atomization with retarded injection timing and other improvements. Included new higher efficiency four pass counterflow aftercoolers provide reduced airbox inlet air temperatures. New connector pipes for the counterflow aftercoolers may also be included. Optional higher compression ratio pistons are available for increased fuel efficiency in some engine types. The kits reduce NOx emissions without increasing smoke, CO or particulate emissions or reducing performance.
摘要翻译：发动机重新配置套件是针对通用汽车公司645型柴油发动机的电动部门进行NOx排放减排开发的。该套件具有改进的单元燃油喷射器，提供更好的燃料雾化，延迟喷射正时和其他改进。包括新的更高效率的四通逆流后冷却器提供降低的空气箱入口空气温度。还可以包括用于逆流后冷却器的新的连接管。可选的更高压缩比的活塞可用于在某些发动机类型中提高燃油效率。这些套件可以减少NOx排放，而不会增加烟雾，CO或颗粒物排放或降低性能。

7. 发明授权

US12104560B1 Direct in cylinder injector for gaseous fuel 有权
公开(公告)号：US12104560B1
公开(公告)日：2024-10-01
申请号：US18487684
申请日：2023-10-16
申请人： Budhadeb Mahakul
发明人： Budhadeb Mahakul
IPC分类号： F02M21/02 , F02D19/06
CPC分类号： F02M21/0257 , F02D19/0642 , F02D19/0681 , F02D19/0689 , F02M21/0206 , F02M21/0242 , F02M21/0254 , F02M21/0275
摘要： A novel in-cylinder fuel injector has been created for internal combustion engines using gaseous fuels such as hydrogen and low-carbon alternatives. This injector enhances the reliability and fuel efficiency of both spark-ignited and compression-ignition engines. The injector's innovative design encompasses a poppet-style valve for fuel injection and a fuel supply valve to govern fuel flow. Furthermore, it incorporates a distinct lubrication system that caters to the valve, seat, and sliding surface. Additionally, the injector includes valve actuators and a control system, effectively managing fuel injector actuation, injection timing, quantity, and valve actuation sequence. Notably, the design also integrates a lubrication system with a control valve.

8. 发明申请

US20100071364A1 STOICHIOMETRIC COMPRESSION IGNITION ENGINE WITH INCREASED POWER OUTPUT 有权
标题翻译：具有增加功率输出的STOICHIOMETRIC压缩点火发动机
公开(公告)号：US20100071364A1
公开(公告)日：2010-03-25
申请号：US12236863
申请日：2008-09-24
申请人： Budhadeb Mahakul , Richard E. Winsor
发明人： Budhadeb Mahakul , Richard E. Winsor
IPC分类号： F02D23/00
CPC分类号： F02B41/10 , F01N5/04 , F01N13/009 , F02B29/0406 , F02B37/001 , F02B37/18 , F02D23/02 , F02M26/08 , F02M26/23 , F02M26/34 , Y02T10/144 , Y02T10/163
摘要： A stoichiometric compression ignition engine has a turbocharger coupled to it so that the exhaust from the engine feeds the turbine and the compressor provides combustion air past a throttle and intercooler to the engine intake manifold. An exhaust after treatment device is positioned before the exhaust of the engine. A power turbine is connected in parallel relation to the turbocharger turbine and is controlled by a valve to operate the power turbine whenever either the turbocharger compressor boost or the turbocharger turbine back pressure exceed given limits. The power turbine is connected by a power transmission device to either couple to the engine output or to an electrical generator. An EGR loop may be driven by a pump also connected to the power turbine to lower in cylinder pressures.
摘要翻译：化学计量压缩点火发动机具有联接到其上的涡轮增压器，使得来自发动机的排气供给涡轮机，并且压缩机将燃烧空气经过节气门和中间冷却器提供给发动机进气歧管。排气后处理装置位于发动机排气之前。动力涡轮机与涡轮增压器涡轮并联连接，并且每当涡轮增压器压缩机升压或涡轮增压器涡轮机背压超过给定极限时，都由阀控制以操作动力涡轮机。动力涡轮机通过动力传递装置连接以耦合到发动机输出或发电机。 EGR回路可以由也连接到动力涡轮机的泵驱动以在气缸压力下降。

9. 发明授权

US07628344B2 Fuel injector with VOP loss resistant valve spring for emissions-compliant engine applications 有权
标题翻译：燃油喷射器，具有VOP损失的阀门弹簧，用于符合排放标准的发动机应用
公开(公告)号：US07628344B2
公开(公告)日：2009-12-08
申请号：US11236237
申请日：2005-09-27
申请人： Budhadeb Mahakul , Brent J. Valesano , Gary L. Cowden , Mike Smith
发明人： Budhadeb Mahakul , Brent J. Valesano , Gary L. Cowden , Mike Smith
IPC分类号： F02M61/20
CPC分类号： F02M61/168 , F02M57/023 , F02M61/14 , F02M61/16 , F02M61/20 , F02M2200/02 , F02M2200/50 , F02M2200/80 , F02M2200/8015
摘要： A fuel injector assembly for an emissions-based EMD 710 locomotive dieselengine. The fuel injector assembly includes a needle slidably positioned within a bore of a valve body of the injector assembly, where fuel pressure introduced into a bore chamber causes the needle to open a spray tip. A spring mounted within the bore forces the needle to close the spray tip when the fuel is not being applied. The spring is a dead coil spring including inactive coils where at least portions of the coils at both ends of the spring are in intimate contact with each other so as to reduce spring wear during operation of the assembly. Because the dead coil spring has reduced wear, the VOP set point of the fuel injector assembly can be reduced, which reduces NOx emissions.
摘要翻译：一种用于基于排放物的EMD 710机车柴油发动机的燃料喷射器组件。燃料喷射器组件包括可滑动地定位在喷射器组件的阀体的孔内的针，其中引入孔腔的燃料压力导致针打开喷嘴。安装在孔内的弹簧迫使针头在燃料未被施加时关闭喷嘴。弹簧是包括惰性线圈的死螺旋弹簧，其中弹簧两端的线圈的至少部分彼此紧密接触，以便在组件的操作期间减少弹簧磨损。因为死螺旋弹簧具有减少的磨损，所以可以减少燃料喷射器组件的VOP设定点，这降低了NOx排放。

10. 发明授权

US08474258B2 Stoichiometric compression ignition engine with increased power output 有权
标题翻译：化学计量压缩点火发动机功率输出增加
公开(公告)号：US08474258B2
公开(公告)日：2013-07-02
申请号：US12236863
申请日：2008-09-24
申请人： Budhadeb Mahakul , Richard E. Winsor
发明人： Budhadeb Mahakul , Richard E. Winsor
IPC分类号： F02B33/44 , F02G3/00 , F02M25/07 , F02B41/10
CPC分类号： F02B41/10 , F01N5/04 , F01N13/009 , F02B29/0406 , F02B37/001 , F02B37/18 , F02D23/02 , F02M26/08 , F02M26/23 , F02M26/34 , Y02T10/144 , Y02T10/163
摘要： A stoichiometric compression ignition engine has a turbocharger coupled to it so that the exhaust from the engine feeds the turbine and the compressor provides combustion air past a throttle and intercooler to the engine intake manifold. An exhaust after treatment device is positioned before the exhaust of the engine. A power turbine is connected in parallel relation to the turbocharger turbine and is controlled by a valve to operate the power turbine whenever either the turbocharger compressor boost or the turbocharger turbine back pressure exceed given limits. The power turbine is connected by a power transmission device to either couple to the engine output or to an electrical generator. An EGR loop may be driven by a pump also connected to the power turbine to lower in cylinder pressures.
摘要翻译：化学计量压缩点火发动机具有联接到其上的涡轮增压器，使得来自发动机的排气供给涡轮机，并且压缩机将燃烧空气经过节气门和中间冷却器提供给发动机进气歧管。排气后处理装置位于发动机排气之前。动力涡轮机与涡轮增压器涡轮并联连接，并且每当涡轮增压器压缩机升压或涡轮增压器涡轮机背压超过给定极限时，都由阀控制以操作动力涡轮机。动力涡轮机通过动力传递装置连接以耦合到发动机输出或发电机。 EGR回路可以由也连接到动力涡轮机的泵驱动以在气缸压力下降。

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