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Development of the Laser Clad Valve Seats

机译：激光复合阀座的开发

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摘要

Recently, automobile engine components are being used in severe thermalconditions due to higher demand for output performance, fuel consumption rate, and purification of exhaust gas. For example, better fuel economy is achieved by raising compression ratio, resulting in highr exhaust temperature. We have developed a "laser clad valve seat" altering a conventional press-fit sintered valve, to solve this confict by improving the overall heat-transfer coefficient between cylinder heads and valve seats. This lowers the temperature of com-bustion chamber wall and valves as well as the temperature of valve seats. It contributed higher combustion efficiency, attaining both lower fuel consumption and higher torque and power.
机译：近来，由于对输出性能，燃料消耗率和废气净化的更高需求，汽车发动机部件被用于严酷的热条件下。例如，通过提高压缩比可获得更好的燃油经济性，从而导致更高的排气温度。我们开发了一种“激光复合阀座”，它改变了传统的压配烧结阀，以通过改善气缸盖与阀座之间的整体传热系数来解决这一难题。这降低了燃烧室壁和阀的温度以及阀座的温度。它贡献了更高的燃烧效率，同时降低了燃油消耗，提高了扭矩和功率。

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