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    • 1. 发明专利
    • Hydraulic thrust producing implement
    • AU4940093A
    • 1994-04-12
    • AU4940093
    • 1993-09-16
    • JAMES ANDREW FRAME
    • FRAME JAMES ANDREW
    • E02F1/00E02F3/96E02F5/28E02F9/00B63B35/73
    • A submersible thrust producing implement for use in combination with an excavator, the excavator being of the type having a boom and a stick with an attachment end on the stick for attaching the implement, which boom and stick can be extended and retracted to selectively submerge the attachment end to a predetermined location in a body of water, and having a hydraulic power system for actuating the boom, the stick, and the implement. The implement comprises: a housing; a propeller mounted on the housing for rotation about a first axis; apparatus for driving the propeller to produce a current of water away from the housing sufficient to produce a predetermined thrusting force; a first rotating device for selectively rotating the housing about a second axis perpendicular to the first axis to control the direction of the thrusting force in a first plane; and a second rotating device for selectively rotating the housing about a third axis perpendicular to both the first axis and the second axis to control the direction of the thrusting force in a second plane. When the excavator is positioned upon a vessel floating on a body of water, the thrusting force may be selectively directed to be utilized either for propelling the barge on the body of water or for dredging the bottom of the body of water.