公开(公告)号：US10066572B2

公开(公告)日：2018-09-04

申请号：US14915074

申请日：2014-08-27

申请人： ETH Zurich

发明人： Christopher H Onder ,  Tobias Ott

IPC分类号： F02M7/00 ,  F02D41/40 ,  F02D41/30 ,  F02D35/02 ,  F02D41/00

摘要： Feedback control of combustion in a gas diesel dual-fuel engine (20), based on the measured cylinder pressure, has been invented. The center of combustion and pressure rise rate is controlled by manipulating the start of diesel injection and duration of diesel injection. Measurements of transient engine operation show, that the proposed controller is able to control the center of combustion and the maximum pressure rise rate. The influence of changing intake manifold pressure, changing exhaust gas recirculation rate and changing air-fuel ratio can be compensated by the controller (10). Steady state measurements show that the gas diesel dual fuel engine reaches efficiencies around 40% with stoichiometric air-fuel ratio and diesel ratios below 5%. The results have been obtained on a slightly modified production type common-rail diesel engine with four cylinders and a displacement volume of 2 liters.

公开(公告)号：US10001067B2

公开(公告)日：2018-06-19

申请号：US15119145

申请日：2015-02-26

申请人： Walbro LLC

发明人： Teruhiko Tobinai

IPC分类号： F02M17/00 ,  F02M7/00 ,  F02D9/10 ,  F02M7/12 ,  F02M7/06 ,  F02M1/02 ,  F02M17/04

CPC分类号： F02D9/101 ,  F02M1/02 ,  F02M7/06 ,  F02M7/12 ,  F02M17/04

摘要： A carburetor may include a body having a main bore from which a fuel and air mixture is discharged for use by an engine, a throttle valve head, a choke valve head and a flow directing feature. The throttle valve head may be carried by the body and is moveable between an idle position and a wide open position to control at least some fluid flow through the main bore. The choke valve head may also be carried by the body and is moveable between a first position and a second position to at least in part control fluid flow through the main bore. And the flow directing feature associated with the choke valve head or the throttle valve head may alter at least one of the velocity or direction of at least a portion of the fluid that flows in the main bore.

公开(公告)号：US09732683B2

公开(公告)日：2017-08-15

申请号：US14817065

申请日：2015-08-03

申请人： HYUNDAI MOTOR COMPANY ,  Kia Motors Corporation

发明人： Young-Min Kim

IPC分类号： F02M29/00 ,  F02M7/00 ,  F02D41/00 ,  F02D41/20 ,  F02M35/10 ,  F02B31/00 ,  F02M29/06 ,  F02M27/08 ,  F02B1/06 ,  F02M29/04 ,  F02D41/24 ,  F02B23/10

CPC分类号： F02D41/0002 ,  F02B1/06 ,  F02B31/00 ,  F02B2023/106 ,  F02D41/20 ,  F02D41/2464 ,  F02D2041/0015 ,  F02D2041/2027 ,  F02D2200/0406 ,  F02D2200/101 ,  F02M27/08 ,  F02M29/04 ,  F02M29/06 ,  F02M35/10255 ,  Y02T10/146 ,  Y02T10/42

摘要： A motor response control method in a variable charge motion system in which a VCM motor is differentially controlled by a PWM duty regardless of back pressure of intake air in an intake manifold when a current engine rotation speed in revolutions per minute is less than a specific engine rotation speed in revolutions per minute in a VCM position learning state by a controller whereas the VCM motor is differentially controlled by the PWM duty based on the back pressure of intake air in the intake manifold when the current engine rotation speed in revolutions per minute is greater than the specific engine rotation speed in revolutions per minute.

公开(公告)号：US09279389B2

公开(公告)日：2016-03-08

申请号：US13998640

申请日：2013-11-19

申请人： Carl W. Schultz ,  Timothy G. Ormiston ,  Thomas E. Pecaro

发明人： Carl W. Schultz ,  Timothy G. Ormiston ,  Thomas E. Pecaro

IPC分类号： B01F3/04 ,  F02M17/34 ,  F02M7/00 ,  F02M19/08 ,  F02M35/10

CPC分类号： F02M7/00 ,  B01F3/04 ,  F02M17/34 ,  F02M19/088 ,  F02M35/10019

摘要： An air intake housing and flow enhancing plate for a carburetor with a fluted and contoured air intake opening that flushly aligns with and matches the shape of the carburetor air intake opening. The low profile plate is made of metal for durability and heat resistance. The centrally located air intake opening of the plate has a clover leaf or undulating shape that conforms to the shape of the carburetor air intake opening. The plate is secured directly over the top of the carburetor, and extends radially outward to provide a larger area for securing its fiberglass housing. The housing holds a conventional ring shaped air filter located around the carburetor air intake opening. The plate provides smooth transitions between surfaces to decrease turbulence and improve air flow.

摘要翻译： 一种用于化油器的进气口壳体和流动增强板，其具有与凹槽和轮廓的进气口相对齐并匹配化油器进气口的形状。 低轮廓板由金属制成，耐久性和耐热性。 板的中央位置的进气口具有符合化油器进气口形状的三叶草叶或起伏的形状。 板直接固定在化油器的顶部，并且径向向外延伸，以提供更大的区域来固定其玻璃纤维外壳。 壳体保持位于化油器进气口周围的常规环形空气过滤器。 该板提供表面之间的平滑过渡以减少湍流并改善气流。

公开(公告)号：US08910616B2

公开(公告)日：2014-12-16

申请号：US13092027

申请日：2011-04-21

申请人： Jason J. Raasch

发明人： Jason J. Raasch

IPC分类号： F02M7/00 ,  F02M7/17 ,  F02M17/48 ,  F02M1/02 ,  F02M19/12 ,  F02M19/08

CPC分类号： E01H5/09 ,  E01H5/098 ,  F02M1/02 ,  F02M7/17 ,  F02M17/48 ,  F02M19/12

摘要： A carburetor includes a passageway having a constricted section, a nozzle directed into the passageway proximate the constricted section, and a shaft having a surface that at least partially defines the constricted section. The nozzle is configured to deliver fuel to air passing through the passageway, and the surface includes a contour that is configured to be moved relative to the passageway to change the area of the passageway through the constricted section.

摘要翻译： 化油器包括具有收缩部分的通道，靠近收缩部分引导到通道中的喷嘴，以及具有至少部分地限定收缩部分的表面的轴。 喷嘴构造成将燃料输送到通过通道的空气中，并且表面包括被配置为相对于通道移动的轮廓，以改变通过通过收缩部分的通道的面积。

公开(公告)号：US08752526B2

公开(公告)日：2014-06-17

申请号：US13048482

申请日：2011-03-15

申请人： Oliver Miersch-Wiemers ,  Uwe Mueller

发明人： Oliver Miersch-Wiemers ,  Uwe Mueller

IPC分类号： F02M7/00

CPC分类号： G01M15/08 ,  F02D35/023 ,  F02D35/027 ,  F02D41/40

摘要： The invention relates to a method for reducing uncontrolled combustions in an internal combustion engine, which occur independently of the ignition by a spark plug, wherein uncontrolled combustions are detected in the internal combustion engine (1). In order to reduce the damaging effects of the uncontrolled combustions to the internal combustion engine, the incipient uncontrolled combustion (B) is reduced after said incipient uncontrolled combustion (B) has been detected.

摘要翻译： 本发明涉及一种用于减少内燃机中不受控制的燃烧的方法，该内燃机独立于通过火花塞的点火发生，其中在内燃机（1）中检测到不受控制的燃烧。 为了减少不受控制的燃烧对内燃机的破坏性影响，在检测到初始不受控燃烧（B）之后，初始不受控制的燃烧（B）减少。

公开(公告)号：US20140116384A1

公开(公告)日：2014-05-01

申请号：US14126672

申请日：2012-06-19

申请人： Nicolas Savary ,  Claude Berat ,  Hubert Hippolyte Vignau ,  Christophe Nicolas Henri Viguier

发明人： Nicolas Savary ,  Claude Berat ,  Hubert Hippolyte Vignau ,  Christophe Nicolas Henri Viguier

IPC分类号： F02M7/00

CPC分类号： F02M7/00 ,  F02C7/20 ,  F23M20/005 ,  F23R3/14 ,  F23R3/283 ,  F23R3/286 ,  F23R3/60 ,  F23R2900/00013 ,  F23R2900/00014

摘要： An air/fuel mixer system of a combustion chamber of a gas turbine includes at least one compressed air intake swirler, the swirler having a central axis of symmetry, and a fuel injector including an injection head having an axis of symmetry. Each injector is mounted in the corresponding swirler with aid of a guide mechanism, so that the axis of symmetry of the injection head is off-center with respect to the central axis of symmetry of the swirler. The system can reduce, or even eliminate, combustion instabilities, by injecting the fuel along a particular axis which is off-center relative to the axis of the air/fuel mixer system, inducing a flow of fuel which is no longer perfectly axially symmetrical.

摘要翻译： 燃气轮机的燃烧室的空气/燃料混合器系统包括至少一个压缩空气进气旋流器，旋流器具有中心对称轴线，燃料喷射器包括具有对称轴的喷射头。 每个注射器借助于引导机构安装在相应的旋流器中，使得注射头的对称轴线相对于旋流器的中心对称轴线偏心。 通过沿着与空气/燃料混合器系统的轴线偏心的特定轴线喷射燃料，该系统可以减少或甚至消除燃烧不稳定性，从而引起不再完全轴向对称的燃料流。

公开(公告)号：US08706380B2

公开(公告)日：2014-04-22

申请号：US12727411

申请日：2010-03-19

申请人： Robert Womersley

发明人： Robert Womersley

IPC分类号： B60T7/12 ,  G06D1/00 ,  G06F7/00 ,  G06F17/00 ,  F02M7/00

CPC分类号： F02D41/401 ,  F02D29/06 ,  F02D35/023 ,  F02D41/064 ,  F02D41/1448 ,  F02D2200/0406 ,  Y02T10/44

摘要： A method of operating a compression ignition engine, which includes at least one combustion chamber containing a piston, and a mechanically operated fuel injection pump apparatus. The method includes sensing the engine operating temperature with a first sensor, and providing input to a controller. The controller operates the fuel injection pump apparatus to deliver fuel to each of the combustion chambers according to a first timing regime when the engine operating temperature is above a threshold temperature, and according to a second, advanced timing, regime when the engine operating temperature is below the threshold temperature. The method further includes sensing the pressure in the combustion chambers with a second sensor. When the controller is operating the fuel injection pump apparatus according to the second timing regime and the combustion chamber pressure exceeds a desired pressure, the method includes changing operation from the second timing regime to the first timing regime.

摘要翻译： 一种操作压缩点火式发动机的方法，其包括至少一个包含活塞的燃烧室，以及机械操作的燃料喷射泵装置。 该方法包括用第一传感器检测发动机工作温度，并向控制器提供输入。 当发动机工作温度高于阈值温度时，控制器操作燃料喷射泵装置以根据第一定时方式将燃料输送到每个燃烧室，并且当发动机工作温度为 低于阈值温度。 该方法还包括用第二传感器感测燃烧室中的压力。 当控制器根据第二定时方式操作燃料喷射泵装置并且燃烧室压力超过期望的压力时，该方法包括将操作从第二定时状态改变到第一定时状态。

公开(公告)号：US08651088B2

公开(公告)日：2014-02-18

申请号：US13576828

申请日：2010-11-12

申请人： Shigeyuki Urano

发明人： Shigeyuki Urano

IPC分类号： F02M7/00 ,  F02P5/00

CPC分类号： F02D41/00 ,  F02D41/0002 ,  F02D41/1498 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02P5/1455 ,  Y02T10/42 ,  Y02T10/46

摘要： In an internal combustion engine having an in-cylinder pressure sensor provided on each cylinder, an in-cylinder pressure detection value is corrected into an absolute pressure using an absolute pressure correction value Pr by calculating the absolute pressure correction value Pr (=(P2V2κ−P1V1κ)/(V1κ−V2κ)) from in-cylinder pressure detection values P1 and P2, in-cylinder volumes V1 and V2, and a specific heat ratio K at predetermined crank angles θ1 and θ2 during the adiabatic compression stroke from IVC to the ignition timing. When the adiabatic compression stroke (ignition timing−IVC) is shorter than a predetermined crank angle period CAth, the ignition timing is delayed. When the adiabatic compression stroke is longer than or equal to CAth, IVC is advanced. Preferably, a torque variation is suppressed by controlling the ignition timing of each cylinder before IVC is advanced.

摘要翻译： 在具有设置在各气缸上的缸内压力传感器的内燃机中，通过计算绝对压力校正值Pr（=（P2V2kappa）），使用绝对压力校正值Pr将缸内压力检测值校正为绝对压力， 来自缸内压力检测值P1和P2，缸内体积V1和V2以及在IVC到绝热压缩冲程期间在预定曲柄角θ1和θ2处的比热比K的P1V1kappa）/（V1kappa-V2kappa）） 点火正时 当绝热压缩冲程（点火正时IVC）比预定的曲柄角周期CAth短时，点火正时被延迟。 当绝热压缩冲程大于或等于CAth时，IVC先进。 优选地，在IVC前进之前通过控制每个气缸的点火正时来抑制转矩变化。

公开(公告)号：US20140034014A1

公开(公告)日：2014-02-06

申请号：US13562356

申请日：2012-07-31

申请人： Neil Xavier Blythe ,  Shawn Michael Gallagher ,  James Robert Mischler ,  Luke Henry

发明人： Neil Xavier Blythe ,  Shawn Michael Gallagher ,  James Robert Mischler ,  Luke Henry

IPC分类号： F02B47/08 ,  F02M25/07 ,  F02M7/00 ,  F02M51/06 ,  F02M69/04 ,  F02M45/00

CPC分类号： F02D41/0082 ,  F02B29/0412 ,  F02B37/004 ,  F02B37/18 ,  F02D13/0207 ,  F02D17/02 ,  F02D41/0052 ,  F02D41/024 ,  F02D41/04 ,  F02D41/1497 ,  F02D2200/1002 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  Y02T10/47

摘要： Various systems and method for controlling exhaust gas recirculation (EGR) in an internal combustion engine are provided. In one embodiment, a method includes injecting fuel to a subset of cylinders that includes less than all cylinders of a first cylinder group to obtain a target EGR rate. The first cylinder group provides exhaust gas through an exhaust gas recirculation (EGR) passage structure fluidly coupled between the first cylinder group and an intake passage structure. The method further includes injecting fuel to at least one cylinder of a second cylinder group. The second cylinder group provides substantially no exhaust gas through the EGR passage structure.

摘要翻译： 提供了用于控制内燃机中的废气再循环（EGR）的各种系统和方法。 在一个实施例中，一种方法包括将燃料喷射到包括少于第一气缸组的所有气缸的气缸的子集，以获得目标EGR率。 第一气缸组通过流体连接在第一气缸组和进气通道结构之间的废气再循环（EGR）通道结构提供废气。 该方法还包括将燃料喷射到第二气缸组的至少一个气缸。 第二气缸组基本上不通过EGR通道结构排出废气。