Exhaust gas recirculation measurement device
    1.
    发明授权
    Exhaust gas recirculation measurement device 有权
    废气再循环测量装置

    公开(公告)号:US06810725B2

    公开(公告)日:2004-11-02

    申请号:US10375066

    申请日:2003-02-28

    IPC分类号: G01M1900

    摘要: An EGR measurement device for recirculating a portion of exhaust gas of an internal combustion engine that is adapted to allow accurate measurement of exhaust gas flow when the exhaust gas flows in a reverse direction that is opposite to the forward direction toward the intake of the engine. In one embodiment, an extension portion is used which extends over a second tap to allow measurement of pressure in the reverse flow direction so that flow rate can be calculated. In another embodiment, one or more pitot tubes are provided that allows accurate measurement of exhaust gas flows when the exhaust gas flows in a reverse direction.

    摘要翻译: 一种EGR测量装置,用于使内燃机的废气的一部分再循环,该内燃机的排气的一部分适合于当排气沿与向前方向相反的方向朝向发动机的进气口相反的方向流动时允许精确的排气流量测量。 在一个实施例中,使用延伸部分,该延伸部分在第二抽头上延伸以允许在逆向流动方向上测量压力,从而可以计算流量。 在另一个实施例中,提供了一个或多个皮托管,其允许当排气沿相反方向流动时对排气流的精确测量。

    Internal combustion engine with piston cooling system and piston therefor
    2.
    发明授权
    Internal combustion engine with piston cooling system and piston therefor 有权
    具有活塞冷却系统和活塞的内燃机

    公开(公告)号:US06701875B2

    公开(公告)日:2004-03-09

    申请号:US10158137

    申请日:2002-05-31

    IPC分类号: F01P104

    摘要: A piston cooling system and associated piston are provided which effectively cools and lubricates the upper crown portion of a piston and the connecting rod/piston pin area using a single cooling nozzle. The piston cooling system includes a piston having a cooling gallery, a cooling nozzle positioned to direct cooling oil through a flow path to the entrance of the cooling gallery, and a deflecting surface positioned in the flow path to deflect a portion of the cooling oil into a deflected flow path toward the connecting rod and piston pin area. The deflecting surface may be formed on a baffle plate positioned as the bottom wall of the cooling gallery or may be integrally formed on the piston body.

    摘要翻译: 提供活塞冷却系统和相关联的活塞,其使用单个冷却喷嘴有效地冷却和润滑活塞的上冠部和连杆/活塞销区域。 活塞冷却系统包括具有冷却库的活塞,冷却喷嘴,其定位成将冷却油引导通过到冷却库入口的流动路径;以及偏转表面,该偏转表面位于流动路径中,以将一部分冷却油偏转成 朝向连杆和活塞销区域的偏转流动路径。 偏转表面可以形成在作为冷却槽的底壁定位的挡板上,或者可以一体地形成在活塞体上。