水平对置发动机有什么优缺点

2025-03-17 02:33:21
推荐回答(2个)
回答1:

水平对置发动机,发动机活塞平均分布在曲轴两侧,在水平方向上左右运动。使发动机的整体高度降低、长度缩短、整车的重心降低,车辆行驶更加平稳,发动机安装在整车的中心线上,两侧活塞产生的力矩相互抵消,大大降低车辆在行驶中的振动,使发动机转速得到很大提升,减少噪音。 优点:水平对置发动机的最大优点是重心低。由于它的汽缸为“平放”,不仅降低了汽车的重心,还能让车头设计得又扁又低,这些因素都能增强汽车的行驶稳定性。同时,水平对置的汽缸布局是一种对称稳定结构,这使得发动机的运转平顺性比V型发动机更好,运行时的功率损耗也是最小。当然更低的重心和均衡的分配也为车辆带了更好的操控性。 缺点:那为什么其它厂家没有研发水平对置引擎呢?除了因为水平对置结构较为复杂外,还有如机油润滑等问题很难解决。横置的气缸因为重力的原因,会使机油流到底部,使一边气缸得不到充分的润滑。显然保时捷和斯巴鲁都很好的解决了众多技术难题,但高精度的制造要求也带来了更高的养护成本,并且由于机体较宽,因而并不利于布局。

回答2:

水平对置发动机的优缺点

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