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Propeller and propelling device

A propeller and blade technology, applied in the field of propulsion devices in fluids, can solve the problems of small propulsion force and isolated blades cannot form a duct effect, etc., and achieve the effects of slowing down the falling speed, reducing the risk of use, and reducing interference.

Inactive Publication Date: 2017-06-06
陈笠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a propeller and a propulsion device to solve the technical problem in the prior art that the isolated blades cannot form a duct effect and generate less propulsion

Method used

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  • Propeller and propelling device

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Embodiment Construction

[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a propeller and a propelling device, and relates to the technical field of propelling devices in a fluid. The propeller comprises a paddle and a propeller shaft; the paddle is strip-shaped; a first end of the paddle is directly or indirectly connected with the propeller shaft; the paddle is bent in the circumferential direction of the propeller shaft; the included angle formed between the connecting line of the first end and a second end of the paddle and one side of the propeller shaft which extends in the same direction as the bending extending direction of the paddle is an acute angle. During a using process, when the propeller is rotated, the paddle performs circumferential movement around the propeller shaft to form a semi-closed cavity; the fluid is cut, pushed and pressed by the paddle, so that the fluid flows into the cavity; the area of the fluid flowing into the cavity is greater than an outflow area because of a curved disc surface which is formed by the rotation of the paddle, so that the fluid is gathered in the cavity to generate a certain high pressure to spray the inflow fluid out at a high speed to form a bypass effect; therefore, great propelling force is generated.

Description

technical field [0001] The invention relates to the field of propulsion devices in fluid, in particular to a propeller and a propulsion device. Background technique [0002] Propeller refers to a device that converts the rotational power of the engine into propulsion by the rotation of the blades in the air or water. There are many types of propellers, and they are widely used, such as propellers for airplanes and ships. [0003] A propeller consists of blades, a hub and the output shaft of an electric motor. Wherein, two or more radial blades are fixed on the propeller hub, and the propeller hub is installed on the output shaft of the motor directly or through a reducer. During use, the output shaft of the motor drives the propeller hub to rotate, thereby driving the propeller blades to rotate. When the propeller blades rotate, the fluid is cut to generate forward or backward propulsion, so that the aircraft or ship moves forward or backward. [0004] When the propeller ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/26B64C11/16
CPCB63H1/26B64C11/16
Inventor 陈立
Owner 陈笠
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