| 摘要 |
A fluid pressure booster and a fluid pressure brake apparatus having the fluid pressure booster are provided. The fluid pressure booster includes an auxiliary fluid pressure source including a power-operated pump and a pressure accumulator, a pressure adjusting device which adjusts fluid pressure supplied from the auxiliary fluid pressure source to a value corresponding to an operating amount of a brake operation member by displacement of a spool valve and introduces the adjusted fluid pressure into a boost chamber, a boost piston which receives the fluid pressure introduced into the boost chamber to generate assist force and operates a master piston of a master cylinder by assisted force, and a damper chamber which communicates with one or both of the boost chamber and a pressure chamber of the master cylinder. |
