| 摘要 |
A regulator is provided for increasing the efficiency of an engine. The regulator is locatable in or adjacent to an engine manifold and has a propeller ( 18 ) connected to a power supply ( 58 ) for driving the propeller. The propeller is mounted ( 18 ) in the manifold. The propeller has a longitudinal pin ( 16 ) defining a rotation axis and at least one blade attached to the pin by an elongated blade root that substantially follows the longitudinal axis of the pin. |
