Ventilation pressure-balancing device for crankcase of general petrol engine

通用汽油机曲轴箱通气压力平衡装置

Abstract

The utility model discloses a ventilation pressure balance device, a crankcase body and a main air hole of a universal gasoline engine crankcase, which is characterized in that a spring leaf value is mounted on the main air hole, one end of the spring leaf value is arranged on the crankcase body, and another end of the spring leaf value is free. The ventilation pressure balance device of the universal gasoline engine crankcase of the utility model uses the size and frequency of pressure variation in the spring leaf value and the crankcase to control the opening degree of the spring leaf, thereby to ensure the pressure in the crankcase in the accepted range on the one hand, and on the other hand decrease the consumption of the engine oil. The utility can reduce the output of the engine oil and the emission of the gasoline engine, so the pollutant discharge of the gasoline engine will meet related standards and be useful for environmental protection. The utility model has simple and convenient installation.
本实用新型公开了一种通用汽油机曲轴箱通气压力平衡装置,曲轴箱本体,主通气孔;其特征在于:在主通气孔上设置簧片阀,簧片阀的一端设置在曲轴箱本体上,簧片阀的另一端是自由端。本实用新型的通用汽油机曲轴箱通气压力平衡装置,利用簧片阀与曲轴箱内压力变化大小和频率控制簧片开度,一方面保证曲轴箱内压力在允许范围内,另一方面可以减小机油的消耗量;减小机油的排出量,能降低汽油机的排放量,使汽油机的污染物排放符合相关标准,有助于环境保护。结构简单,安装方便。

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