| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake draulic control device capable of draining a brake fluid leaking out to a motor cam chamber while preventing abrupt infiltration of water from the outside. SOLUTION: A brake hydraulic control device is provided with a plunger pump 5 leading a brake fluid in a wheel cylinder into a reservoir provided at a hydraulic control device body 1 and returning the brake fluid led into the reservoir, to a master cylinder, and a motor 3 for driving the plunger pump 5. The plunger pump 5 and an output shaft 6 of the driving motor 3 are connected in a power transmissible state through a motor cam chamber 7 provided in the hydraulic control device body 1, and a drain passage 10 leading to the outside from the motor cam chamber 7 is formed piercing in a vertical direction to drain the brake fluid leaking out to the motor cam chamber 7. The drain passage 10 is provided with a valve element 11 draining the brake fluid leaking out to the motor cam chamber 7 while preventing abrupt infiltration of water from the outside. The drain passage 10 can therefore be closed with the valve element 11 even under the condition of traveling on a bad road with a vehicle body submerged in water. |
