| 摘要 |
An inside oil contact changing typed oil reservoir cap is provided to prevent the leakage of a break oil to outside by blocking external air path with the buoyancy of the time brake oil. An oil reserve cap(3) discharges internal air in a oil reserve tank(1) when a break oil filled in the oil reserve tank is not over-flown, and blocks external air path through pressure of the break oil to the oil reserve cap when the break oil is over-flown and prevent the overflowing of the break oil. |
