Pump-jet propeller

A propeller and pump injection technology, which is applied to ships, special-purpose vessels, underwater ships, etc., can solve the problems of high operating cost, increased thrust, and high propulsion efficiency, and achieve high propulsion efficiency and reduce thrust loss.

Pending Publication Date: 2019-08-09
JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pump jet propeller design focuses on low noise rather than high efficiency
The stator can reduce the loss of rotational energy in the wake, and the presence of the conduit can rectify and increase the thrust to reduce the loss of the rotor blade tip, but the torque received by the rotor also increases, requiring a large power to make it rotate Therefore, the propulsion efficiency of general pump-jet propellers often cannot be higher, the operating cost is high, and it is not environmentally friendly

Method used

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Embodiment 1

[0029] like figure 1 As shown, the present invention provides a pump jet propeller, comprising a conduit 1, a stator 2, a rotor 3, a hub 4, a rotating shaft 5 and a deflector 7,

[0030] The hub 4, the rotor 3, the stator 2 and part of the rotating shaft 5 are located in the conduit 1;

[0031] The hub 4 and the rotor 3 are sequentially sleeved on the rotating shaft 5, and the rotating shaft 5 can drive the rotor 3 to rotate;

[0032] The stator 2 is uniformly and spaced between the hub 4 and the conduit 1, one end of the stator 2 is connected to the hub 4, and the other end of the stator 2 is connected to the conduit 1;

[0033] The deflector 7 is located on the side of the rotor 3 away from the hub 4, the deflector 7 is connected to one end of the rotating shaft 5, the rotor 3, the hub 4, the rotating shaft 5 and the deflector 7 are coaxial.

[0034] Specifically, the rotor 3 is fixed on the rotating shaft 5, and the rotor 3 is located between the stator 2 and the deflect...

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PUM

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Abstract

The invention provides a pump-jet propeller. The pump-jet propeller includes a conduit, stators, a rotor, a wheel hub, a rotating shaft and a fluid director, wherein the wheel hub, the rotor, the stators and part of the rotating shaft are located in the conduit; the wheel hub and rotor are successively sleeves the rotating shaft, and the rotating shaft can drive the rotor to rotate movably; the stators are evenly distributed between the wheel hub and the conduit at intervals, one ends of the stators are connected with the wheel hub, and the other ends of the stators are connected with the conduit; and the fluid director is located on the side, away from the wheel hub, of the rotor, and the fluid director is connected with one end of the rotating shaft and is coaxial with the rotor, the wheel hub and the rotating shaft. According to the pump-jet propeller, on the basis of retaining the original advantages, the fluid director is added to interact with trailing vortexes generated by the rotor and stators, the thrust loss is decreased, and greater thrust are achieved.

Description

technical field [0001] The invention relates to the technical field of pump-jet propulsion, in particular to a pump-jet propeller. Background technique [0002] Pump-jet propulsion is a form of propulsion developed in recent years, which has the advantages of high concealment and high efficiency. The pump jet propeller design focuses on low noise rather than high efficiency. The stator can reduce the loss of rotational energy in the wake, and the presence of the conduit can rectify and increase the thrust to reduce the loss of the rotor blade tip, but the torque received by the rotor also increases, requiring a large power to make it rotate Therefore, the propulsion efficiency of general pump-jet propellers often cannot be higher, the operating cost is high, and it is not environmentally friendly. Contents of the invention [0003] In order to solve at least one of the above-mentioned technical problems, the present invention discloses a pump-jet propeller, comprising ...

Claims

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Application Information

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IPC IPC(8): B63G8/08
CPCB63G8/08
Inventor 袁建平周运凯王龙滟徐健陈阳
Owner JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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