| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle brake fluid pressure control device which effectively damps pulsation of a blake fluid according to the driving state of a pump.SOLUTION: In a vehicle brake fluid pressure control device, a pulsation damping mechanism 6 is provided at a discharge fluid passage D of a base substance 100. The pulsation damping mechanism 6 includes: a damper chamber 10; a division member 30 which divides the damper chamber 10 into an inflow chamber 15 and an outflow chamber 16; and an elastic member 40 which biases the division member 30. The division member 30 includes: a contact surface 31b which contacts with a regulation surface 12; a communication fluid passage 50 which opens on the contact surface 31b; an inflow fluid passage 60 which allows the inflow chamber 15 and the communication fluid passage 50 to communicate with each other; a first orifice 65 provided in the inflow fluid passage 60; an outflow fluid passage 70 which allows the communication fluid passage 50 and the outflow chamber 16 to communicate with each other; and a second orifice 75 provided at the outflow fluid passage 70. A fluid passage cross sectional area of the second orifice 75 is formed larger than a fluid passage cross sectional area of the first orifice 65. |
