| 摘要 |
There is provided a pressure damping device for a brake system. The damping device includes a cylindrical housing that is fixed to the oil passage, includes a first liquid pressure hole and a second liquid pressure hole respectively communicating with a main oil passage of the first and second hydraulic circuits, and is opened on one side thereof, a lid member that is coupled so as to close the opened one side of the housing, first and second pistons that are spaced apart from each other and move forward and backward within the housing, and a spring that is interposed between the first and second pistons to provide an elastic force to the first and second pistons. Here, a sealing member is provided on an outer circumferential surface of each piston so that a space between the first and second pistons is sealed, and an air damping space whose volume is changed in accordance with a pressure of a liquid pressure is provided between the first and second pistons.
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