| 摘要 |
A water ejector and injector attachment for the motor of a boat comprising a motor adapted to be secured to the frame of the boat carrying a propeller at its lower end and defining a cavitation plate extending rearwardly thereof and having a bore therethrough, at least one recess in the lower surface of the cavitation plate; a trim tab projecting downwardly from the cavitation plate and positioned adjacent rearwardly of the propeller, the trim tab having a passageway therethrough having one end communicating with the bore of the cavitation plate, and a plate member integral therewith and having at least one protrusion upwardly extending therefrom, each of said protrusions mating in the recesses in the cavitation plate; an elongated tube provided through the bore in the cavitation plate with one end secured to and communicating with the passageway of the trim tab and the other end terminating in the bilge of the boat; a spring biasing the trim tab upwardly whereby the protrusions engage the recesses in the cavitation plate; and a handle for moving the trim tab downwardly to disengage the protrusions from the recesses thereby allowing rotational movement of the trim tab.
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