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    Emission reduction kit for EMD diesel engines
    5.
    发明授权
    Emission reduction kit for EMD diesel engines 有权
    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

    Applicant: Budhadeb Mahakul ,  Verne E. Rezabek ,  Rafiqul Islam ,  Frank M. Graczyk ,  Chih L. Liu

    Inventor： Budhadeb Mahakul ,  Verne E. Rezabek ,  Rafiqul Islam ,  Frank M. Graczyk ,  Chih L. Liu

    IPC: F02B23/06 ,  F02B29/04 ,  F02M61/08

    CPC classification number: F02B29/0443 ,  F02B23/0684 ,  F02B29/0412 ,  F02B29/0418 ,  F02B29/0437 ,  F02B29/0462 ,  F02B29/0475 ,  F02B29/0493 ,  Y02T10/125 ,  Y02T10/146

    Abstract: 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.

    Abstract translation: 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。

    Direct in cylinder injector for gaseous fuel
    6.
    发明授权
    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

    Applicant: Budhadeb Mahakul

    Inventor： Budhadeb Mahakul

    IPC: F02M21/02 ,  F02D19/06

    CPC classification number: F02M21/0257 ,  F02D19/0642 ,  F02D19/0681 ,  F02D19/0689 ,  F02M21/0206 ,  F02M21/0242 ,  F02M21/0254 ,  F02M21/0275

    Abstract: 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.

    STOICHIOMETRIC COMPRESSION IGNITION ENGINE WITH INCREASED POWER OUTPUT
    7.
    发明申请
    STOICHIOMETRIC COMPRESSION IGNITION ENGINE WITH INCREASED POWER OUTPUT 有权
    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

    Applicant: Budhadeb Mahakul ,  Richard E. Winsor

    Inventor： Budhadeb Mahakul ,  Richard E. Winsor

    IPC: F02D23/00

    CPC classification number: F02B41/10 ,  F01N5/04 ,  F01N13/009 ,  F02B29/0406 ,  F02B37/001 ,  F02B37/18 ,  F02D23/02 ,  F02M26/08 ,  F02M26/23 ,  F02M26/34 ,  Y02T10/144 ,  Y02T10/163

    Abstract: 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.

    Abstract translation: 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。

    Fuel injector with VOP loss resistant valve spring for emissions-compliant engine applications
    8.
    发明授权
    Fuel injector with VOP loss resistant valve spring for emissions-compliant engine applications 有权
    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

    Applicant: Budhadeb Mahakul ,  Brent J. Valesano ,  Gary L. Cowden ,  Mike Smith

    Inventor： Budhadeb Mahakul ,  Brent J. Valesano ,  Gary L. Cowden ,  Mike Smith

    IPC: F02M61/20

    CPC classification number: F02M61/168 ,  F02M57/023 ,  F02M61/14 ,  F02M61/16 ,  F02M61/20 ,  F02M2200/02 ,  F02M2200/50 ,  F02M2200/80 ,  F02M2200/8015

    Abstract: 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.

    Abstract translation: 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。

    Deep angle injection nozzle and piston having complementary combustion bowl
    9.
    发明授权
    Deep angle injection nozzle and piston having complementary combustion bowl 失效
    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

    Applicant: Budhadeb Mahakul ,  David A. Bolis ,  George E. Crane

    Inventor： Budhadeb Mahakul ,  David A. Bolis ,  George E. Crane

    IPC: F02B3/06 ,  F02B23/06 ,  F02F1/24 ,  F02F3/26 ,  F02M61/14 ,  F02B31/00

    CPC classification number: F02B23/0669 ,  F02B23/0696 ,  F02B2275/14 ,  F02B3/06 ,  F02F2001/247 ,  Y02T10/123 ,  Y02T10/125

    Abstract: 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.

    Abstract translation: 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。

    Stoichiometric compression ignition engine with increased power output
    10.
    发明授权
    Stoichiometric compression ignition engine with increased power output 有权
    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

    Applicant: Budhadeb Mahakul ,  Richard E. Winsor

    Inventor： Budhadeb Mahakul ,  Richard E. Winsor

    IPC: F02B33/44 ,  F02G3/00 ,  F02M25/07 ,  F02B41/10

    CPC classification number: F02B41/10 ,  F01N5/04 ,  F01N13/009 ,  F02B29/0406 ,  F02B37/001 ,  F02B37/18 ,  F02D23/02 ,  F02M26/08 ,  F02M26/23 ,  F02M26/34 ,  Y02T10/144 ,  Y02T10/163

    Abstract: 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.

    Abstract translation: 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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