Freudenberg-Nok密封技术正在推出其革命性的Levitex®Crankshaft密封 - 能够将曲轴摩擦降低至90％ - 在今天的第35届国际维也纳电机研讨会上。
freudenberg-nok.will present the innovation in response to the European Union’s goals of reducing total carbon dioxide (CO2) emissions to 95 grams of CO2 per kilometer by 2021.
The gas-lubricated Levitex mechanical face seal comes very close to the vision of a frictionless seal. The seal consists of a stationary primary ring and – on the oil side – a rotating mating ring. During operation, grooves creating an aerodynamic effect form an air cushion that separates the two rings. The primary and mating rings also have a special coating to reduce wear and friction when the crankshaft is at rest.
密封试验台上的Levitex密封的独立测量甚至在低转速下显着降低了摩擦。测量的摩擦扭矩比摩擦优化的聚四氟乙烯（PTFE）密封和标准PTFE密封的值低0.2至0.3牛顿仪表。剩余的摩擦是由于空气剪切。
Levitex Crankshaft密封将帮助汽车制造商解决发动机和动力传动系统中的摩擦减少，是减少车辆二氧化碳排放的关键。径向轴密封件通常在其壳体处密封旋转曲轴。油膜最小化其与轴接触。尽管如此，剩余的性能损失可以高达1克每公里。
With the new Levitex seal, the frictional losses from a crankshaft seal are reduced by up to 90 percent compared to a standard PTFE seal. This leads to less fuel consumption and wear, as well as a longer service life. Further, CO2 emissions at the sealing point fall from the 0.5- to 1-gram range to less than 0.1 grams under the New European Driving Cycle.
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Filed Under:TECHNOLOGIES + PRODUCTS,Seals
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