| Almost half of the tiny craft was a fusion impeller, making it the most maneuverable ship in the fleet. |
| This type of humidifier has a rapidly rotating fan called an impeller, which turns water droplets into a fine mist. |
| The impeller on the water pump was just about gone and the bushing holding it to the shaft was cracked. |
| Rotation of the impeller draws liquid through the inlet cap opening and pushes the liquid through the pump flow path. |
| Centrifugal pumps are not positive-displacement pumps because the impeller can slip in the liquid. |
| It whips it up to speed dramatically, but the impeller doesn't compress the air or generate boost. |
