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Pulsating screw propeller

A screw propeller and propeller technology, applied in the direction of rotary propellers, rotary propellers, etc., can solve the problems that propellers are not suitable for high-speed navigation and energy consumption, and achieve the effects of reducing fuel consumption, reducing energy loss, and increasing speed

Inactive Publication Date: 2015-05-27
吴燕川
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AI Technical Summary

Problems solved by technology

However, large-diameter propellers are not suitable for high-speed navigation. Generally, the faster the speed, the faster the speed of the propeller drainage. Generally, ships with a speed of more than 30 knots need to use water jets with faster water jets, which undoubtedly consumes a lot of energy. Kinetic energy in water

Method used

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  • Pulsating screw propeller
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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, 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.

[0027] see image 3 , in the embodiment of the present invention, the pulsating propeller is composed of 3-15 sets of propellers distributed at intervals. Each set of propellers consists of densely packed narrow blades. The propeller and its blades are made of lightweight materials, and the blades can be made of flexible or elastic sheets. The present invention adopts the multi-bladed large-diameter propeller, because the propeller is not mainly propulsed by spiral stroke, ...

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Abstract

The invention discloses a pulsating screw propeller. The pulsating screw propeller is formed by 3 to 15 groups of propellers which are distributed with intervals; every propeller is formed by 10 to 300 blades; the ratio of length and width of every blade is 20 to 100 to 1. The pulsating screw propeller improves the ship propulsive efficiency substantially, reduces the engine power substantially under the same navigational speed, reduces the engine size and weight, reduces the fuel oil consumption, reduces exhaust emission, is particularly suitable for ships navigating in high speed, solves the problem that the high-speed ships are low in navigational efficiency, meanwhile reduces the energy consumption, saves time, is applicable to aircraft and can greatly reduce energy consumption and reduce atmospheric pollution.

Description

technical field [0001] The invention relates to mechanical equipment parts, in particular to a pulsating screw propeller. Background technique [0002] When the ship sails at high speed, according to the action force and reaction force doing work, the side with smaller mass and faster speed consumes more energy, and the faster the speed, the greater the energy consumption. Because the speed of the water sprayed by the ship is much greater than the sailing speed of the ship, and the mass of the sprayed water is much smaller than the mass of the ship, so the energy consumed by the water spray is much greater than the energy required for the propulsion of the ship. How much power is used for the ship to overcome resistance and maintain a constant speed? Going forward, how much power becomes the momentum loss of the jet. The following example can be used to estimate what percentage of the total power is used to propel the boat and how much is thrown away in rough wakes. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/28
Inventor 吴燕川
Owner 吴燕川
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