| 摘要 |
PROBLEM TO BE SOLVED: To provide a brake hydraulic control unit provided with a plurality of pumps and motors, with a shock absorbing chamber for damping pulsation pressure provided in a delivery passage of each pump, in which the brake hydraulic control unit is compact, and mounting regulation to a vehicle is alleviated. SOLUTION: Delivery passages for two pumps of a first and a second systems driven by motors 3<SB>-1</SB>and 3<SB>-2</SB>disposed in parallel are formed inside a housing 2a, and shock absorbing chambers 24<SB>-1</SB>- 24<SB>-4</SB>for damping pulsation pressure are respectively provided in the delivery passages. Among the shock absorbing chambers, the shock absorbing chambers 24<SB>-1</SB>and 24<SB>-2</SB>to be provided in the delivery passage for the pump of the first system are disposed above and below a pump incorporation part I of the first system, and the shock absorbing chambers 24<SB>-3</SB>and 24<SB>-4</SB>to be provided in the delivery passage for the pump of the second system are disposed above and below a pump incorporating part II of the second system, all in parallel to motor shafts. COPYRIGHT: (C)2008,JPO&INPIT
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