The invention relates to a radiator which comprises a service life indication
alarm device, an upper water chamber, a radiator core and a lower water chamber. The upper water chamber is arranged on the upper portion of the radiator core and communicates with the radiator core. The lower water chamber is arranged on the lower portion of the radiator core and communicates with the radiator core. The upper water chamber comprises three cavities, namely, the first cavity, the second cavity and the third cavity. On one hand, through first-stage physical absorption and isolation and the chemical action of second-stage
filtration and third-stage
filtration, iron
rust, water scale and bubbles generated during operation of a cooling
system are absorbed, a reaction is carried out, potential threats including
calcium and
magnesium ions, iron ions and acid ions are handled, constancy of the PH value of a cooling solution is maintained, the clean and safe cooling solution is output to the
system, and accordingly the effect that the cooling
system operates safely, durably and efficiently is ensured; and on the other hand, the excellent functions of carrying out degassing on an engine
water jacket and the radiator, carrying out water replenishing on the engine
water jacket, and providing an expansion space for the cooling system are achieved, an expansion kettle is omitted for a finished vehicle, complex water paths are reduced, the
failure rate of the finished vehicle is decreased, and the vehicle usage cost is reduced for users.