Patent ID: 6984000

Claim:
A brake-fluid tank for a braking system, comprising a casing, defining an inner space ( 3 ), a filling port, at least one outlet port, a first supply chamber ( 7 ) for a primary hydraulic circuit, a second supply chamber ( 9 ) for a secondary hydraulic circuit, a level sensor for the hydraulic fluid contained in said tank (R), when such level is lower than a minimum level (m), characterised in that said tank also comprises a third supply chamber ( 11 ) for a hydraulic pump ( 23 ), and means for the interconnection of the first, second and third chambers when the hydraulic-fluid level is higher than a safety level (s), and for the fluid-tight separation of said chambers when the hydraulic-fluid level is lower than the safety level (s), the safety level (s) being lower than or equal to the minimum level (m) and a fourth chamber ( 13 ) for accommodating the level sensor, said fourth chamber ( 13 ) being situated substantially centrally in said tank (R) and separated from the first, second and third chambers ( 7 , 9 , 11 ) by a partition wall ( 15 ) that is provided with passages ( 14 ) connecting the first, second and third chambers ( 7 , 9 , 11 ) with said fourth chamber ( 13 ), said passages ( 14 ) being situated between the safety level (s) and the minimum level (m).