| 摘要 |
<p>PURPOSE: A variable water pump is provided to shorten worm-up time since at the initial start of an engine, the water pump does not operate and thus an engine cooling function is blocked. CONSTITUTION: A variable water pump comprises a belt pulley(100), a rotating shaft(101), a driving unit(200), a variable gear unit(300) and an impeller. The belt pulley is installed on a bearing shaft. The belt pulley makes racing by the torque of a crank shaft transferred through a belt. The rotating shaft rotates integrally with the belt pulley. The driving unit is connected to the rotating shaft and rotates and drives along with the rotating shaft. The variable gear unit is connected to the driving unit and changes gear ratio. The impeller is connected to the bearing shaft and is formed on the opposite side of the belt pulley.</p> |
