High efficiency snowthrower

Details High efficiency snowthrower High efficiency snowthrower

1988-10-14

1990-02-06

Eickholt, Eugene H.

Excavating

Snow or ice removing or grooming by portable device

Motorized rotary excavating tool

474 12, 474 17, E01H 509

Patent

active

048979422

ABSTRACT:
A snow removal apparatus operable in a substantially optimum efficiency state using a variable ratio pulley. The snow removal apparatus includes a feature for sensing power demand made on the snowthrower under variable snow conditions. Responsive to the power demand, the fan speed and/or auger speed is reduced or increased in order to use the full engine power without stalling the engine.

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