| 摘要 |
A coolant reservoir tank for a vehicle is provided to prevent the tank from being broken during use or leakage of coolant by improving durability and strength of the tank, and measure the residual amount of coolant even without using a level marked on an outer surface of the tank. A coolant reservoir tank for a vehicle includes an upper case(100) having a coolant inlet port(110) and a lower case(200) having an outer surface on which a coolant level is marked. The upper case and the lower case have rims which are heat-welded with each other. The upper case and the lower case have inner surfaces on which a plurality of strength reinforcement separation walls(120,230) are formed. The separation wall of the lower case has a coolant passage hole(231). |
