3D curve-shaped propeller blades

Abstract

The blade shape of a propeller blade is characterized in that the blade is designed as a narrow and long blade, and the radial direction is curved in three-dimensional space. The main purpose is to provide efficient propulsion for light or other special aircraft, diving equipment, and ground maneuvering equipment after they are combined into propellers. The propeller itself has a certain duct fluid compression effect, which can increase the thrust under the same power drive; the design of the blade can reduce the damage caused by the blade tip to the outside world under high-speed rotation, and can protect the blade itself. At the same time, it operates at high speed in fluid media of different densities, and the transition dynamic performance is good. The invention is a propeller blade with ingenious design, wide application and superior performance.

Description

technical field

[0001] The invention relates to a propulsion device in a fluid, especially capable of providing high-efficiency propulsion for light or other special aircraft, diving equipment, and ground maneuvering equipment. Background technique

[0002] At present, the traditional propeller is to use the propulsion generated by the cutting of the blade relative to the fluid when the blade rotates. For different applications in different fluids, propellers are also specially designed for different purposes; and today’s propeller blades are basically designed to be radial (or fan-shaped propellers, although the length-to-width ratio of the blade is small, but still radial), the blade tip rotates at high speed It is easy to cause damage to the outside world or the blade itself due to external influences; the current technology, the wind-receiving surface of the isolated propeller is flat and circular, and it is difficult to form a duct effect. Even if the angle of attack is...

Images