1、

Research on Applying a Low Intake Swirl DI Combustion System to Model 195 Diesel Engine

低旋流进气直喷燃烧系统在195柴油机上的应用研究

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2、

Numerical Simulation Research on Variable Intake Swirl System for Four-valve Diesel Engine

四气门柴油机可调进气涡流系统的数值仿真研究

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3、

The test shows that the intensity of the intake swirl calculated by this method is more practicable.

试验表明:由虚拟理论转速计算的涡流强度更加接近实际情况。

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4、

in-cylinder flow generated during intake stroke is disorganized at the beginning, and then it develops into a large number of small-scale swirls, which develop into a single stable large-scale swirl at the later half of intake stroke.

模拟结果表明,在进气过程初期,缸内气流运动是紊乱的;随后,逐渐形成多个小涡流;到进气过程中后期,单一大尺度进气涡流形成并逐步得到发展、稳定和加强。

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5、

As the air inlet diameters increase, the intake central swirl is intensified and thus fuel evaporation in the first combustion chamber is improved.

加大进气孔直径使进气中心涡流增强,燃油在一级燃烧室中蒸发量增加。

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6、

The swirl of intake air generated by skew intake holes enhances fuel-air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust;

斜孔所产生的旋转进气,虽具有强化燃气混合、消除死区和回流稳焰的作用,但回流过度会使燃烧室及排温过高;

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7、

Finally, simulate the transient intake process on FIRE and reveals the shape, size and number of vortex flow, swirl flow, and other air flow in the cylinder relations with the crank angle.

最后通过FIRE对进气过程进行瞬态模拟计算并揭示了缸内涡流、滚流等气流在缸内的形状、大小和数目随曲轴转角的变化关系。

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8、

As you can see, some experimentation was done with a "swirl-induction" system and another conical front-section with rearward facing intake tubes.

正如你所看到的,一些试验做的目的是“涡流感应系统”,另一个锥形前与后方面临的摄入管节。

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