| 摘要 |
PURPOSE: A variable impeller using a bimetal is provided to control flow of cooling water without additional devices by controlling an arrangement angle of a vane performing as a rotary blade according to temperature of the cooling water flowing in a water pump. CONSTITUTION: A variable impeller using a bimetal comprises a shaft(21), a shroud(22), and a vane(23). The shroud wraps the shaft. The vane is fixed to a slot formed in the shroud in order to be transformed. The vane is a bimetal member. |
