Brake device for vehicle

A brake device for a vehicle, comprising:

• a first flow path unit configured to guide a braking hydraulic pressure by connecting some of a plurality of wheel cylinder units and a master cylinder unit;
• a second flow path unit configured to guide a braking hydraulic pressure by connecting the others of the plurality of wheel cylinder units and the master cylinder unit;
• a third flow path unit configured to connect a reservoir unit which is connected with the master cylinder unit and stores oil, and pump units which are installed to generate a braking hydraulic pressure and be interlocked with one another to alternately perform a suction operation and a discharge operation, and connected with the first flow path unit;
• a fourth flow path unit configured to connect the reservoir unit and the pump units, and connected with the second flow path unit;
• a fifth flow path unit configured to connect the reservoir unit and the first flow path unit;
• a sixth flow path unit configured to connect the reservoir unit and the second flow path unit;
• a seventh flow path unit configured to selectively connect the first flow path unit and the second flow path unit;
• and
• an eighth flow path unit configured to connect the second flow path unit and the reservoir unit,
• wherein
• the pump units include an even number to be interlocked with one another by an eccentric bearing and alternately perform a suction operation and a discharge operation, a flow path of each pump unit serving as both a suction flow path and a discharge flow path,
• a thirty-first line part of the third flow path unit originates from reservoir unit to be connected to two of the pump units, and a forty-first line part of the fourth flow path unit originates from reservoir unit to be connected to another two of the pump units, and
• the thirty-first line part and the forty-first line part do not overlap each other.