| 摘要 |
A plurality of perforated endless belts are disposed in circumventing relationship about a radiator. At least one roller is disposed on either side of the radiator to engage and guide the belts with one of the rollers being motor-driven. A vertically disposed guide bracket is mounted on the cooling air exit side of the radiator, intermediate the lateral sides thereof, to engage and guide the belts thereacross. An arcuate guide plate, having a plurality of holes formed therethrough, is mounted on the cooling air inlet side of the radiator to engage and guide the belts thereacross. In the preferred embodiment of this invention, each belt is half-twisted to form a "mobius strip" whereby the belt will turn over as it passes through the guide bracket to facilitate debris removal and to reduce cooling air pressure loss.
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