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    • 8. 发明授权
    • Lens impact hammer apparatus and methods
    • 镜头冲击锤装置及方法
    • US3999420A
    • 1976-12-28
    • US553259
    • 1975-02-26
    • John F. Wright
    • John F. Wright
    • G01N3/00G01N3/30G01N33/00G01N33/38G01N3/14
    • G01N3/30G01N2203/0039G01N33/386
    • Hammer apparatus is provided for impacting an eyeglass lens to test the frangibility of the lens. A hammer arm is pivotally mounted on a base plate for rotation between a vertical position and a horizontal position. A steel ball is connected to the end of the hammer arm to impact the lens. A weight is positioned precisely on the hammer arm to provide the exact amount of impact force required by FDA regulations. A cylindrical pedestal is mounted to the base plate to support the lens horizontally so that the ball strikes substantially in the center of the lens when the hammer arm falls to the horizontal position. A catch member holds the hammer arm in the vertical position and, upon manual actuation, the catch member releases the hammer arm to fall to impact the lens. A removable metal box encloses the pedestal for catching broken glass. The top of the box includes an aperture for the ball to enter as the arm falls to impact the lens.
    • 提供锤式装置用于冲击眼镜镜片以测试镜片的易碎性。 锤臂可枢转地安装在基板上以在垂直位置和水平位置之间旋转。 钢球连接到锤臂的端部以撞击镜头。 重锤精确定位在锤臂上,以提供FDA规定要求的确切的冲击力。 圆柱形基座安装到基板上以水平地支撑透镜,使得当锤臂落到水平位置时,球大致在透镜的中心处撞击。 卡扣构件将锤臂保持在垂直位置,并且在手动致动时,卡扣构件释放锤臂以落下以撞击透镜。 可移动的金属盒包围用于抓住碎玻璃的基座。 盒子的顶部包括一个孔,用于当手臂坠落以撞击镜头时球进入。
    • 10. 发明授权
    • System for estimating NOx content of exhaust gas produced by an internal combustion engine
    • 用于估计由内燃机产生的废气的NOx含量的系统
    • US06697729B2
    • 2004-02-24
    • US10118416
    • 2002-04-08
    • John F. Wright
    • John F. Wright
    • F02M2507
    • F02D41/1462F01N9/005F02B29/0406F02B37/00F02D41/0072F02D41/1446F02M26/05F02M26/23F02M26/33F02M26/47Y02T10/47
    • A system for estimating NOx content of exhaust gas produced by an internal combustion engine includes a control computer operable to estimate an exhaust temperature corresponding to temperature of exhaust gas produced by the engine, to determine an EGR fraction corresponding to a fractional amount of recirculated exhaust gas present in an air charge supplied to the engine, and to estimate an emissions index, corresponding to a fuel rate normalized, mass-based NOx concentration of the exhaust gas produced by the engine, as a function of the exhaust temperature and the EGR fraction. The control computer is further operable to determine a mass flow rate of fresh air entering the intake manifold and a fuel mass flow rate, and estimate the NOx content by volume of the exhaust gas produced by the engine as a function of charge mass flow value, the fuel mass flow value and the emissions index value.
    • 用于估计由内燃机产生的废气的NOx含量的系统包括控制计算机,其可操作以估计与发动机产生的废气温度相对应的排气温度,以确定对应于再循环废气的分数量的EGR率 以提供给发动机的空气量存在,并且根据排气温度和EGR分数来估计对应于由发动机产生的废气的基于质量的NOx浓度的燃料速率归一化的排放指数。 控制计算机还可操作以确定进入进气歧管的新鲜空气的质量流率和燃料质量流量,并且根据由发动机产生的废气的体积按照电荷质量流量值来估计NOx含量, 燃料质量流量值和排放指标值。