| 摘要 |
<p>A regulator for increasing the efficiency of an engine, the regulator being locatable in or adjacent to an engine manifold and comprising a propeller (18) connected to a power supply (58) for driving the propeller, and a means for mounting the propeller (18) in the manifold, the propeller having a longitudinal pin (16) defining a rotation axis and at least one blade attached to the pin by means of an elongated blade root which substantially follows the longitudinal axis of the pin.</p> |
