Method of operating a free piston internal combustion engine with high pressure hydraulic fluid upon misfire or initial start-up
    1.
    发明授权
    Method of operating a free piston internal combustion engine with high pressure hydraulic fluid upon misfire or initial start-up 有权
    在失火或初始起动时,用高压液压油操作自由活塞内燃机的方法

    公开(公告)号:US06206656B1

    公开(公告)日:2001-03-27

    申请号:US09255524

    申请日:1999-02-22

    IPC分类号: F04B1700

    CPC分类号: F02B71/02 F02B71/045

    摘要: A method of operating a free piston engine of the present invention, includes a housing with a combustion cylinder and a second cylinder. A piston includes a piston head reciprocally disposed within the combustion cylinder, a second head reciprocally disposed within the second cylinder, and a plunger rod interconnecting the piston head with the second head. A supply of hydraulic fluid is pulsed from a high pressure hydraulic accumulator into a pressure chamber in the second cylinder adjacent the second head during a beginning portion of a compression stroke to cause the piston head to move toward a top dead center position. The high pressure hydraulic accumulator is decoupled from the pressure chamber after the pulsing step. A low pressure hydraulic accumulator is coupled with the pressure chamber during a remaining portion of the compression stroke. The high pressure hydraulic accumulator is coupled with the pressure chamber when the piston head is traveling toward a BDC position during a return stroke. A sensor senses a position of the piston which is at or near the BDC position and provides a corresponding signal. The coupling between the high pressure hydraulic accumulator and the pressure chamber is maintained for a period of time, dependent upon the sensor signal.

    摘要翻译: 本发明的自由活塞式发动机的操作方法包括具有燃烧气缸和第二气缸的壳体。 活塞包括往复地设置在燃烧气缸内的活塞头,往复地设置在第二气缸内的第二头和将活塞头与第二头相互连接的柱塞杆。 在压缩行程的开始部分期间,将液压流体的供应脉冲从第二气缸中的高压液压蓄能器压到第二气缸中的压力室中,以使活塞头向上死点位置移动。 在脉冲步骤之后,高压液压蓄能器与压力室解耦。 在压缩行程的剩余部分期间,低压液压蓄能器与压力室联接。 当在返回行程期间活塞头朝向BDC位置行进时,高压液压蓄能器与压力室联接。 传感器感测位于或接近BDC位置的活塞的位置,并提供相应的信号。 根据传感器信号,高压液压蓄能器和压力室之间的联接保持一段时间。

    Exhaust gas regenerator/particulate trap for an internal combustion engine
    2.
    发明授权
    Exhaust gas regenerator/particulate trap for an internal combustion engine 失效
    用于内燃机的废气再生器/颗粒捕集器

    公开(公告)号:US06526753B1

    公开(公告)日:2003-03-04

    申请号:US10024053

    申请日:2001-12-17

    申请人: Brett M. Bailey

    发明人: Brett M. Bailey

    IPC分类号: F02B3344

    摘要: An exhaust gas regenerator/particulate capture system is provided with a first particulate trap and a second particulate trap. A regenerator valve is provided having a valve member, an EGR inlet port, and a purge air outlet port. The valve member is operable between a first position and a second position. When the valve member is in the first position, the EGR inlet port is connected in fluid communication with the first particulate trap and the purge air outlet port is connected in fluid communication with the second particulate trap. When the valve member is in the second position, the EGR inlet port is connected in fluid communication with the second particulate trap and the purge air outlet port is connected in fluid communication with the first particulate trap.

    摘要翻译: 排气再生器/颗粒捕集系统设置有第一颗粒捕集器和第二颗粒捕集器。 提供了具有阀构件,EGR入口和吹扫空气出口的再生器阀。 阀构件可在第一位置和第二位置之间操作。 当阀构件处于第一位置时,EGR入口与第一颗粒捕集器流体连通地连接,净化空气出口与第二颗粒捕集器流体连通。 当阀构件处于第二位置时,EGR入口端口与第二颗粒捕集器流体连通地连接,吹扫空气出口与第一颗粒捕集器流体连通。

    Exhaust gas recirculation system for an internal combustion engine
    4.
    发明授权
    Exhaust gas recirculation system for an internal combustion engine 失效
    内燃机排气再循环系统

    公开(公告)号:US6003315A

    公开(公告)日:1999-12-21

    申请号:US828240

    申请日:1997-03-31

    申请人: Brett M. Bailey

    发明人: Brett M. Bailey

    摘要: An exhaust gas recirculation (EGR) system for a turbo-charged internal combustion engine is provided. The EGR system includes a recirculation conduit for recirculating a volume of exhaust gas from the exhaust manifold to the intake manifold; a bypass conduit for diverting a flow of intake air around the engine; and an EGR cooler disposed in operative association with the recirculation conduit and the bypass conduit and adapted for cooling the volume of recirculated exhaust gas in the recirculation conduit. The exhaust gas recirculation cooler or heat exchanger is also adapted for concurrently heating the intake air in the bypass conduit. The heated intake air together with the exhaust gas remaining in the exhaust manifold is used to drive the turbocharger. The disclosed embodiment of the exhaust gas recirculation system also includes an air-to-air after-cooler used to cool the compressed intake air. The cool, compressed air is then diverted to the exhaust gas recirculation cooler to cool the recirculated exhaust gas.

    摘要翻译: 提供了一种用于涡轮增压内燃机的废气再循环(EGR)系统。 EGR系统包括用于将一定体积的废气从排气歧管再循环到进气歧管的再循环管道; 旁路管道,用于将发动机周围的进气旋转; 以及EGR冷却器,其设置成与再循环管道和旁路管道可操作地相关联并且适于冷却再循环管道中的再循环排气的体积。 排气再循环冷却器或热交换器也适于同时加热旁路管道中的进气。 加热的进气与排气歧管中残留的废气一起用于驱动涡轮增压器。 所公开的废气再循环系统的实施例还包括用于冷却压缩进气的空气 - 空气后冷器。 然后将冷却的压缩空气转移到废气再循环冷却器以冷却再循环废气。

    Gaseous fuel engine charge density control system
    5.
    发明授权
    Gaseous fuel engine charge density control system 有权
    气体燃料发动机电荷密度控制系统

    公开(公告)号:US07913675B2

    公开(公告)日:2011-03-29

    申请号:US12291796

    申请日:2008-11-13

    IPC分类号: F02M33/04 F02M33/02

    摘要: A spark ignited gaseous fuel engine including an exhaust gas recirculation system and method for operating a gaseous fuel engine are provided. The exhaust gas recirculation system has an adjustable flow and is operable to supply exhaust gas to at least one engine cylinder. The engine further includes means for determining a value indicative of a charge density of a combustion mixture that includes gaseous fuel, air and exhaust gas supplied to the at least one cylinder, and adjusting a flow quantity through the exhaust gas recirculation system based at least in part on the value. The charge density may permit the controller to set a NOx output rate from the engine via a pre-determined correlation between charge density and NOx output.

    摘要翻译: 提供了包括排气再循环系统和操作气体燃料发动机的方法的火花点燃气态燃料发动机。 排气再循环系统具有可调节的流量并且可操作以将排气供应到至少一个发动机气缸。 发动机还包括用于确定指示燃料混合物的电荷密度的值的装置,所述燃烧混合物包括供应到所述至少一个气缸的气态燃料,空气和废气,以及通过所述废气再循环系统至少在 部分价值。 电荷密度可以允许控制器通过电荷密度和NOx输出之间的预定相关性来设定来自发动机的NOx输出速率。

    Exhaust gas recirculation and selective catalytic reduction system
    7.
    发明申请
    Exhaust gas recirculation and selective catalytic reduction system 失效
    废气再循环和选择性催化还原系统

    公开(公告)号:US20080022665A1

    公开(公告)日:2008-01-31

    申请号:US11496218

    申请日:2006-07-31

    IPC分类号: F01N5/04 F01N3/00 F01N3/10

    摘要: A power source is provided for use with an exhaust gas recirculation and selective catalytic reduction system. The power source has a main air-intake passage fluidly connected to a first air-intake passage and a second air-intake passage. A first cylinder group may be fluidly connected to the first air-intake passage and a first exhaust passage, wherein the first exhaust passage may include an ammonia-producing catalyst configured to convert at least a portion of a fluid in the first exhaust passage into ammonia. Further, a second cylinder group may be fluidly connected to the second air-intake passage and a second exhaust passage. A third cylinder group may be fluidly connected to the second air-intake passage. The power source may have a recirculation loop that includes the second air-intake passage and the third cylinder group. The power source may also have a merged exhaust passage configured to connect the first exhaust passage and the second exhaust passage to facilitate a reaction between ammonia and NOx to at least partially remove NOx from the merged exhaust passage.

    摘要翻译: 提供了用于废气再循环和选择性催化还原系统的电源。 动力源具有流体地连接到第一进气通道和第二进气通道的主空气进气通道。 第一气缸组可以流体连接到第一进气通道和第一排气通道,其中第一排气通道可以包括氨生成催化剂,其构造成将第一排气通道中的至少一部分流体转化成氨 。 此外,第二气缸组可以流体连接到第二进气通道和第二排气通道。 第三气缸组可以流体地连接到第二进气通道。 电源可以具有包括第二进气通道和第三气缸组的再循环回路。 电源还可以具有被配置为连接第一排气通道和第二排气通道的合流排气通道,以促进氨和NOx之间的反应,以至少部分地从合并的排气通道中除去NOx。

    Free piston internal combustion engine with pulse compression
    8.
    发明授权
    Free piston internal combustion engine with pulse compression 失效
    自由活塞内燃机脉冲压缩

    公开(公告)号:US06463895B2

    公开(公告)日:2002-10-15

    申请号:US09833889

    申请日:2001-04-12

    申请人: Brett M. Bailey

    发明人: Brett M. Bailey

    IPC分类号: F02B7100

    CPC分类号: F02B71/045

    摘要: A free piston internal combustion engine includes a housing with a combustion cylinder and a hydraulic cylinder. A piston includes a piston head reciprocally disposed within the combustion cylinder and movable during a compression stroke to a top dead center position and during a return stroke to a BDC position. A plunger head is reciprocally disposed within the hydraulic cylinder. A plunger rod interconnects and is rigidly affixed to each of the piston head and the plunger head. The plunger head and the hydraulic cylinder define a variable volume pressure chamber on a side of the plunger head generally opposite the plunger rod. At least one valve interconnects a hydraulic accumulator with the pressure chamber during a portion of the compression stroke to act on the plunger head and thereby move the piston head toward the top dead center position, and interconnects the hydraulic accumulator with the pressure chamber during the return stroke to pressurize the hydraulic accumulator during movement of the piston head toward the BDC position.

    摘要翻译: 自由活塞内燃机包括具有燃烧气缸和液压缸的壳体。 活塞包括往复地设置在燃烧气缸内的活塞头,并且在压缩冲程期间可移动到上止点位置,并且在返回行程期间可移动到BDC位置。 柱塞头往复设置在液压缸内。 柱塞杆互连并刚性地固定到活塞头和柱塞头中的每一个上。 柱塞头和液压缸在柱塞头的与柱塞杆大致相对的一侧上限定可变容积的压力室。 在压缩行程的一部分期间,至少一个阀将液压蓄能器与压力室互连,以作用在柱塞头上,从而使活塞头朝向上止点位置移动,并在返回期间将液压蓄能器与压力室相互连接 在活塞头朝向BDC位置移动期间对液压蓄能器加压。

    Gaseous fuel engine charge density control system
    9.
    发明申请
    Gaseous fuel engine charge density control system 有权
    气体燃料发动机电荷密度控制系统

    公开(公告)号:US20090076713A1

    公开(公告)日:2009-03-19

    申请号:US12291796

    申请日:2008-11-13

    IPC分类号: F02D41/00 F02M25/07

    摘要: A spark ignited gaseous fuel engine including an exhaust gas recirculation system and method for operating a gaseous fuel engine are provided. The exhaust gas recirculation system has an adjustable flow and is operable to supply exhaust gas to at least one engine cylinder. The engine further includes means for determining a value indicative of a charge density of a combustion mixture that includes gaseous fuel, air and exhaust gas supplied to the at least one cylinder, and adjusting a flow quantity through the exhaust gas recirculation system based at least in part on the value. The charge density may permit the controller to set a NOx output rate from the engine via a pre-determined correlation between charge density and NOx output.

    摘要翻译: 提供了包括排气再循环系统和操作气体燃料发动机的方法的火花点燃气态燃料发动机。 排气再循环系统具有可调节的流量并且可操作以将排气供应到至少一个发动机气缸。 发动机还包括用于确定指示燃料混合物的电荷密度的值的装置,所述燃烧混合物包括供应到所述至少一个气缸的气态燃料,空气和废气,以及通过所述废气再循环系统至少在 部分价值。 电荷密度可以允许控制器通过电荷密度和NOx输出之间的预定相关性来设定来自发动机的NOx输出速率。

    Digital controlled fluid translating device
    10.
    发明授权
    Digital controlled fluid translating device 失效
    数字控制流体转换装置

    公开(公告)号:US06681571B2

    公开(公告)日:2004-01-27

    申请号:US10023286

    申请日:2001-12-13

    IPC分类号: F16D3902

    摘要: The displacement of fluid translating devices are normally controlled by changing the angle of an eccentric or a cam plate to change the pumping stroke of the pistons within the device. In the subject arrangement, the displacement of the fluid translating device is controlled by controlling the flow being delivered into or away from each of the associated pressure chambers defined therein by the respective ones of a plurality of pistons. By not permitting the flow from every piston to be directed into useful work, the volume of fluid being directed into or away from the fluid translating device can be altered. Likewise, the direction of fluid flow within the fluid translating device can be selectively changed thus permitting the subject fluid translating device to be capable of pumping or motoring in both directions of flow relative to the first and second inlet/outlet ports thereof.

    摘要翻译: 流体平移装置的位移通常通过改变偏心轮或凸轮板的角度来改变装置内活塞的泵送冲程来控制。 在主题布置中,流体平移装置的位移通过控制通过多个活塞中的相应的活塞传送到其中限定的每个相关联的压力室中或从其中移除的流量来控制。 通过不允许每个活塞的流动被引导到有用的工作中,可以改变被引导到或远离流体平移装置的流体的体积。 类似地,可以选择性地改变流体平移装置内的流体流动的方向,从而允许目标流体平移装置相对于其第一和第二入口/出口在两个流动方向上能够泵送或驱动。