Lift fan system for air cushion ship model

A fan system and hovercraft technology, applied in ship parts, ship construction, ships, etc., can solve the problems of hovercraft impact, low fan pressure, heavy weight, etc., achieve low cost, improve work performance, and increase pressure.

Active Publication Date: 2014-04-23
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The working principles of the axial flow fan and the centrifugal fan are not the same. The hovercraft model must meet the performance characteristic curve of the axial flow lift fan system of the real ship. The centrifugal fan cannot completely simulate the actual fan system. The performance characteristic curve can only meet the similarity requirements as much as possible near a specific operating point, which is not an ideal requirement for the similarity of the lift fan system;
[0005] 2. Although the centrifugal fan provides a larger air volume and more stable performance than the axial flow fan, its fan pressure is generally lower, and the structure is more complicated and the weight is much larger.
The difference in pressure and the change of weight distribution will not be conducive to the similarity of the structure and performance of the hovercraft in the test, which will have a great impact on the entire hovercraft test

Method used

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  • Lift fan system for air cushion ship model
  • Lift fan system for air cushion ship model

Examples

Experimental program
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Embodiment Construction

[0018] Such as figure 1 As shown, there is an air channel 6 in the hovercraft model body, and a pad-lift fan unit is provided above the hovercraft model body. The pad-lift fan unit is composed of two fans connected in series. fan. The two fans are set up and down, and the outer casing 1 of the upper fan and the outer casing 2 of the lower fan are connected and fixed through the ring sleeve 3 . The ring sleeve 3 adopts an aluminum ring sleeve, and the inner diameter of the ring sleeve 3 is consistent with the inner diameter of the blower fan. Changing the height of the ring sleeve according to needs can adjust the height of the center of gravity of the fan unit and the interval between the two blowers.

[0019] The air outlet of the lower blower fan connects the sleeve 4, and the bottom of the sleeve 4 joins with the hovercraft model body 5 (the upper deck of the hovercraft model), and the sleeve communicates with the air passage 6 in the hovercraft model body. The sleeve 4 i...

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Abstract

The invention relates to a lift fan system for an air cushion ship model. An air channel is formed in an air cushion ship model body. The lift fan system is characterized in that a lift fan group is arranged above the air cushion ship model body, and is formed by connecting two fans in series; the two fans are arranged one above the other; an air outlet positioned on the lower fan is connected with a sleeve; the bottom of the sleeve is connected with the air cushion ship model body; the sleeve is communicated with the air channel in the air cushion ship model body.

Description

technical field [0001] The invention relates to a cushion lift fan system for a model hovercraft. Background technique [0002] The lift system of the hovercraft is the only device for the hovercraft to maintain the lift state, and the fan system is the source of power for the entire lift system. Therefore, in the model test of the hovercraft, how to lift the hovercraft to carry out related tests under the condition of satisfying the similarity requirements of the test is the most important thing in the test work of the hovercraft. In the pad lift state, the similarity matching of the pad lift fan system is the most critical, but this is one of the most difficult problems to solve. It needs to make the fan characteristic curve of the model the same as that of the real ship. The fan system of the hovercraft has relatively high requirements on the air flow, especially the total pressure of the fan. At the same time, the pad lift fan system used in the actual ship and the pad ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/00
Inventor 刘宁任慧龙李辉冯国庆赵晓东李陈峰孙树政诸葛凌波黄木李建彰
Owner HARBIN ENG UNIV
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