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    Magnetic bearing for use in reciprocating internal combustion engines
    1.
    发明授权
    Magnetic bearing for use in reciprocating internal combustion engines 有权
    用于往复式内燃机的磁性轴承

    公开(公告)号：US08944024B2

    公开(公告)日：2015-02-03

    申请号：US13557831

    申请日：2012-07-25

    Applicant: Radu C. Florea ,  Darius Mehta

    Inventor： Radu C. Florea ,  Darius Mehta

    IPC: F02B61/04

    CPC classification number: F16C9/02 ,  F16C32/0402 ,  F16C32/0425 ,  F16C39/066 ,  F16C2360/22

    Abstract: An internal combustion engine comprising a plurality of reciprocating pistons within an engine block, each piston having linear movement convertable to rotating movement via a connecting rod connecting each piston to a crankshaft; the crankshaft rotatable about a linear axis, the crankshaft having a plurality of main journals, each main journal rotatable on a main bearing which supports the crankshaft within the engine block; and wherein at least one of the main bearings comprises a fluid film bearing and a magnetic bearing.

    Abstract translation: 一种内燃机，其包括在发动机缸体内的多个往复运动活塞，每个活塞具有线性运动，可转换成经由将每个活塞连接到曲轴的连杆转动; 所述曲轴可绕线性轴线旋转，所述曲轴具有多个主轴颈，每个主轴颈可在主轴承上旋转，所述主轴承将所述曲轴支撑在所述发动机缸体内; 并且其中所述主轴承中的至少一个包括流体膜轴承和磁性轴承。

    Methods of detecting pre-ignition and preventing it from causing knock in direct injection spark ignition engines
    3.
    发明申请
    Methods of detecting pre-ignition and preventing it from causing knock in direct injection spark ignition engines 审中-公开
    检测预点火并防止直接喷射火花点火发动机爆震的方法

    公开(公告)号：US20120029789A1

    公开(公告)日：2012-02-02

    申请号：US13135698

    申请日：2011-07-12

    Applicant: Darius Mehta ,  Terrence F. Alger, II ,  Manfred Amann ,  Jayant V. Sarlashkar

    Inventor： Darius Mehta ,  Terrence F. Alger, II ,  Manfred Amann ,  Jayant V. Sarlashkar

    IPC: F02P5/152 ,  G01M15/04

    CPC classification number: F02D35/023 ,  F02D35/027 ,  F02D37/02 ,  F02D41/405 ,  Y02T10/44

    Abstract: A method of preventing a pre-ignition event within a cylinder (20) of a spark ignition engine (100) involves taking in-cylinder measurements and using the measurements to determine the instantaneous heat being released within the cylinder (20) as a function crank angle. If significant heat is being released before the intended spark timing, additional fuel is injected into the cylinder (20) immediately following the detection of early heat release (pre-ignition) within the same engine cycle, preferably within 45 crank angle degrees following the detection of pre-ignition. The additional fuel quenches the heat released within the cylinder (20) to prevent a pre-ignition event.

    Abstract translation: 一种防止火花点火发动机（100）的气缸（20）内的预先点火事件的方法包括进行气缸内测量并使用测量来确定作为功能曲柄的气缸（20）内释放的瞬时热量 角度。 如果在预期的火花正时之前释放出明显的热量，则在检测相同发动机循环中的早期放热（预点火）之后，最好在检测之后的45个曲柄角度内，立即将额外的燃料喷入气缸（20） 的预燃。 额外的燃料淬火在气缸（20）内释放的热量以防止预先点火事件。

    Fuel Injection During Negative Valve Overlap for Stoichiometric Diesel Operations
    5.
    发明申请
    Fuel Injection During Negative Valve Overlap for Stoichiometric Diesel Operations 有权
    用于化学计量柴油操作的负阀重叠期间的燃油喷射

    公开(公告)号：US20130006498A1

    公开(公告)日：2013-01-03

    申请号：US13175872

    申请日：2011-07-03

    Applicant: Darius Mehta ,  Chad P. Koci ,  Charles E. Roberts, JR.

    Inventor： Darius Mehta ,  Chad P. Koci ,  Charles E. Roberts, JR.

    IPC: F02D41/30 ,  F02D28/00

    CPC classification number: F02D41/402 ,  F02D13/0265 ,  F02D35/028 ,  Y02T10/44

    Abstract: A method of stoichiometrically operating a diesel-fueled internal combustion engine. During a main (conventional) fuel injection event, fuel is injected into the cylinders. The air-fuel ratio during this main fuel injection event is stoichiometric. The cylinders are operated by either advancing the exhaust valve closing or modifying the phasing of the exhaust and intake valve lift events, to achieve a negative valve overlap period between the end of the exhaust phase and the beginning of the intake phase of the engine cycle. Fuel is injected into the cylinders during the negative valve overlap period, which results in highly reactive fuel and reduces ignition delay during the main fuel injection event.

    Abstract translation: 一种化学计量地操作柴油燃料内燃机的方法。 在主要（常规）燃料喷射事件期间，将燃料喷射到气缸中。 在该主要燃料喷射事件期间的空燃比是化学计量的。 气缸通过推进排气门关闭或改变排气和进气门升程事件的相位来操作，以实现在排气阶段结束与发动机循环的进气阶段开始之间的负阀重叠时段。 在负阀重叠期间，燃料被注入到气缸中，这导致高度反应的燃料并且在主燃料喷射事件期间减少点火延迟。

    Stratified charge gasoline direct injection systems using exhaust gas recirculation
    6.
    发明授权
    Stratified charge gasoline direct injection systems using exhaust gas recirculation 有权
    使用废气再循环的分层汽油直喷系统

    公开(公告)号：US07822531B2

    公开(公告)日：2010-10-26

    申请号：US12111010

    申请日：2008-04-28

    Applicant: Terrence Francis Alger, II ,  Charles Edward Roberts, Jr. ,  Darius Mehta

    Inventor： Terrence Francis Alger, II ,  Charles Edward Roberts, Jr. ,  Darius Mehta

    IPC: G06F19/00 ,  F02B3/02 ,  F02B47/08 ,  F02M25/07 ,  F02M51/00

    CPC classification number: F02B29/0437 ,  F02M26/05 ,  F02M26/06 ,  F02M26/24 ,  F02M26/25 ,  Y02T10/146

    Abstract: An aspect of the present disclosure relates to a method and system for reducing emissions and improving knock-tolerance in an engine. Air, including exhaust gas present at levels greater than 20% by total air mass, may be introduced into a combustion chamber having a volume including a piston and a cylinder head. A first amount of fuel and a second amount of fuel may be directly injected into the combustion chamber at various points during the cycle, wherein the ratio of the air, including the exhaust gas, to the first and second amounts of fuel is 14.0:1 to 15.0:1. The first and second amounts of fuel may then be ignited. An electronic control unit may be utilized to time the injections and control the introduction of exhaust gas.

    Abstract translation: 本公开的一个方面涉及一种用于减少发动机的排放和改善爆震公差的方法和系统。 包括以总空气质量大于20％的废气的空气可以被引入到具有活塞和气缸盖的体积的燃烧室中。 可以在循环期间的各个点处将第一量的燃料和第二量的燃料直接喷射到燃烧室中，其中包括废气在内的空气与第一和第二燃料量之比为14.0:1 至15.0：1。 然后可以点燃第一和第二量的燃料。 可以使用电子控制单元来对喷射进行定时和控制排气的引入。

    Stratified Charge Gasoline Direct Injection Systems Using Exhaust Gas Recirculation
    7.
    发明申请
    Stratified Charge Gasoline Direct Injection Systems Using Exhaust Gas Recirculation 有权
    使用排气再循环的分层充气汽油直喷系统

    公开(公告)号：US20090266344A1

    公开(公告)日：2009-10-29

    申请号：US12111010

    申请日：2008-04-28

    Applicant: Terrence Francis Alger, II ,  Charles Edward Roberts, JR. ,  Darius Mehta

    Inventor： Terrence Francis Alger, II ,  Charles Edward Roberts, JR. ,  Darius Mehta

    IPC: F02M25/07

    CPC classification number: F02B29/0437 ,  F02M26/05 ,  F02M26/06 ,  F02M26/24 ,  F02M26/25 ,  Y02T10/146

    Abstract: An aspect of the present disclosure relates to a method and system for reducing emissions and improving knock-tolerance in an engine. Air, including exhaust gas present at levels greater than 20% by total air mass, may be introduced into a combustion chamber having a volume including a piston and a cylinder head. A first amount of fuel and a second amount of fuel may be directly injected into the combustion chamber at various points during the cycle, wherein the ratio of the air, including the exhaust gas, to the first and second amounts of fuel is 14.0:1 to 15.0:1. The first and second amounts of fuel may then be ignited. An electronic control unit may be utilized to time the injections and control the introduction of exhaust gas.

    Abstract translation: 本公开的一个方面涉及一种用于减少发动机的排放和改善爆震公差的方法和系统。 包括以总空气质量大于20％的废气的空气可以被引入到具有活塞和气缸盖的体积的燃烧室中。 可以在循环期间的各个点处将第一量的燃料和第二量的燃料直接喷射到燃烧室中，其中包括废气在内的空气与第一和第二燃料量之比为14.0:1 至15.0：1。 然后可以点燃第一和第二量的燃料。 可以使用电子控制单元来对喷射进行定时和控制排气的引入。

    Exhaust aftertreatment for NOx-containing exhaust from an internal combustion engine
    10.
    发明授权
    Exhaust aftertreatment for NOx-containing exhaust from an internal combustion engine 有权
    对来自内燃机的含NOx废气进行排气后处理

    公开(公告)号：US08857154B2

    公开(公告)日：2014-10-14

    申请号：US13356258

    申请日：2012-01-23

    Applicant: Darius Mehta

    Inventor： Darius Mehta

    IPC: F01N3/00

    CPC classification number: F01N3/208 ,  F01N3/035 ,  F01N3/0871 ,  F01N3/106 ,  F01N9/00 ,  F01N2610/02 ,  F01N2900/1602 ,  F02D41/0275 ,  F02D41/029 ,  F02D2200/0802 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A method of treating NOx-containing exhaust from an internal combustion engine. An exhaust aftertreatment system has the following devices arranged in the following order downstream the exhaust manifold: a lean NOx trap (LNT), a particulate filter (PF) and a selective reduction catalyst (SCR) device. At least the LNT is located in the engine compartment. The SCR temperature at the input to, or in, the SCR is monitored to determine whether the aftertreatment system is to be operated in a cold mode or warm mode. Only during warm mode is reductant provided to the SCR, and during warm mode the LNT is not regenerated.

    Abstract translation: 一种处理来自内燃机的含氮废气的方法。 排气后处理系统具有以下顺序排列在排气歧管下游的排气后处理系统：贫NOx捕集器（LNT），微粒过滤器（PF）和选择还原催化剂（SCR）装置。 至少LNT位于发动机舱内。 监视SCR输入到或内的SCR温度，以确定后处理系统是在冷模式还是暖模式下运行。 只有在暖模式下，还原剂被提供给SCR，并且在暖模式下，LNT不被再生。

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