Crank case exhaust device for internal combustion engine, has negative pressure regulating valve for automatic regulation of pressure in crank case, which is arranged in process of breather tube

摘要

The device has a negative pressure regulating valve (3) for automatic regulation of pressure in the crank case, which is arranged in the path of a breather tube (25). A component (4), which is reducing the pressure difference between the gas inlet (31) and the gas outlet (32) of the low pressure control valve, and acting as throttle, is arranged between gas outlet (32) of the low pressure control valve and the intake tract (21).