Reciprocating propeller

Abstract

There is disclosed a reciprocating propeller, in which a propeller-blade is made up of a propeller rod, propeller ribs and a propeller surface made of elastic material, so it can oscillate back and forth in the range less than or equal to 180 deg. By the action of the propeller surface torsion and whipping of the propeller surface tip, the invention can provide driving force for airplanes and ships.

Description

technical field [0001] The invention relates to an engine-driven device for driving aircraft and ships, in particular to drive paddles or wings of the aircraft and ships. Background technique [0002] Existing various propeller planes, helicopters and motor ships all adopt the propeller for circular motion. The propeller has many advantages, but it is recognized that its driving efficiency is still far behind the flapping wings of birds and insects. [0003] Flapping wing flight is a kind of flight driven by wings (or a reciprocating propeller), but it is generally believed that it is technically difficult to realize a manned aircraft flying in the way of flapping wings ("100 Years of World Aircraft" , Tan Zhaowu, Shen Meizhen, Meng Queming, National Defense Industry Press, 2003). At present, the best manned flapping wing aircraft is a research and development team from the University of Toronto in Canada. In 1999, the full-scale prototype they made could accelerate to mor...

AI Technical Summary

Problems solved by technology

[0003] Flapping-wing flight is a kind of flight driven by wings (or a reciprocating propeller), but it is generally believed that it is technically difficult to realize manned aircraft flying in the way of flapping wings ("100 Years of World Aircraft" , Tan Zhaowu, Shen Meizhen, Meng Queming, National Defense Industry Press, 2003)

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