| 摘要 |
A water pump drive mechanism for an evaporative cooler which includes a blower housing, a blower shaft extending therefrom, a pulley fixed on the shaft, and a water pump; the drive mechanism having an elongated tube mounted on the housing extending from the pump toward the pulley, a drive shaft extending longitudinally of the tube and rotationally mounted thereon having a lower end rotationally engaged with the pump and an upper end adjacent to the pulley, and a friction wheel mounted in the upper end of the drive shaft engaging the pulley for rotational drive of the water pump from the pulley.
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