CN207826516U - Combined type pump-jet propulsor - Google Patents
Combined type pump-jet propulsor Download PDFInfo
- Publication number
- CN207826516U CN207826516U CN201721724098.0U CN201721724098U CN207826516U CN 207826516 U CN207826516 U CN 207826516U CN 201721724098 U CN201721724098 U CN 201721724098U CN 207826516 U CN207826516 U CN 207826516U
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- CN
- China
- Prior art keywords
- pump
- spray
- outer conduit
- stator
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is related to propellers, and in particular to a kind of combined type pump-jet propulsor.Combined type pump-jet propulsor, including outer conduit, outer conduit is in collapsed shape, outer conduit both ends are respectively inlet and outlet, setting pump-jet propulsor and spray pump propeller inside propeller, pump-jet propulsor includes pump spray rotor, pump spray stator and pump spray motor, pump spray motor is fixed on by four fixed-wings in outer conduit, pump spray motor rear portion connection pump spray rotor, the rear setting pump spray stator rectification of pump spray rotor, pump spray stator are connected with outer conduit, spray pump impeller motor is set at pump spray stator center, spray pump impeller motor connects water jet propulsion pump.The utility model is in pump-jet propulsor and water jet propulsion pump under the premise of retaining respective advantage, and the two disadvantage mutually makes up, and the propeller radiated noise after combination is low, thrust loss can be less, propulsive efficiency higher, the critical speed of a ship or plane is high, is suitable for submarine and waterborne vessel.
Description
Technical field
The utility model is related to propellers, and in particular to a kind of combined type pump-jet propulsor.
Background technology
Currently, waterborne vessel and submarine mainly use propeller as mechanical equivalent of light feeding device, propeller is rotated by blade
Convert engine rotation power in the device of propulsive force, the disadvantage is that propulsive efficiency is low, noise is big, as propeller of new generation
Although pump-jet propulsor and water jet propulsion pump performance are better than propeller, the rotor of pump-jet propulsor after flow acceleration to that can transmit
Stator rectification is given, behind the end of transmission mechanism, high speed side fluid layer on the outside of flow field can be driven flow to drawing close at center
Mechanism end forms one section of low regime（Low-pressure area）.No matter the speed of fluid has much, this section of low-pressure area can all exist, using
After a distance, the high speed side fluid layer in outside can be drawn close to this region, and after drawing close, friction is just will produce between fluid（Trailing vortex）It makes
At energy loss, the propulsive efficiency of pump-jet propulsor is reduced；Water jet propulsion pump requires have enough and relatively stable influent streams.And
And water jet propulsion pump is in the low speed of a ship or plane（Less than 20 sections）Under it is less efficient.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of propulsive efficiency height, radiated noise
It is low, the high combined type pump-jet propulsor of the critical speed of a ship or plane.
The technical solution of the utility model is：
Combined type pump-jet propulsor, including outer conduit, outer conduit be in collapsed shape, outer conduit both ends be respectively into
The mouth of a river and water outlet, propeller inside setting pump-jet propulsor and water jet propulsion pump, pump-jet propulsor include pump spray rotor, pump spray
Stator and pump spray motor, pump spray motor are fixed on by four fixed-wings in outer conduit, and the rear portion connection pump spray of pump spray motor turns
Son, the rear setting pump spray stator rectification of pump spray rotor, pump spray stator are connected with outer conduit, and spray pump is arranged at pump spray stator center
Impeller motor, spray pump impeller motor connect water jet propulsion pump.
The utility model has the beneficial effects that：Pump-jet propulsor and water jet propulsion pump under the premise of retaining respective advantage,
The two disadvantage mutually makes up, and the propeller radiated noise after combination is low, and thrust loss can be less, propulsive efficiency higher, critical boat
It is fast high, it is suitable for submarine and waterborne vessel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
1 outer conduit 2 pump spray 3 fixed-wing 4 of the motor pump spray pump spray 6 spray pump impeller motor of stator of rotor 5
7 water jet propulsion pumps.
Specific implementation mode
Combined type pump-jet propulsor, including outer conduit 1, outer conduit 1 are in collapsed shape, 1 both ends of outer conduit difference
For inlet and outlet, propeller inside setting pump-jet propulsor and water jet propulsion pump 7, pump-jet propulsor include that pump sprays rotor
4, pump spray stator 5 and pump spray motor 2, pump spray motor 2 are fixed on by four fixed-wings 3 in outer conduit 1, after pump spray motor 2
Portion's connection pump spray rotor 4,4 rear setting pump spray 5 rectification of stator of pump spray rotor, pump spray stator 5 are connected with outer conduit 1, pump spray
Spray pump impeller motor 6 is set at 5 center of stator, and spray pump impeller motor 6 connects water jet propulsion pump 7.
The present invention promotes the propeller mode combined with hydraulic jet propulsion using pump spray, avoids conventional propeller and promotes anti-sky
The shortcomings of property changed is poor, and radiated noise is big.When work, pump spray rotor 4 can pass to pump spray 5 rectification of stator, make after accelerating to water
The fluid stable outflow that must be accelerated.According to the velocity profile of pump spray it is found that due to the gravity and the contraction shape of outer conduit 1 by water
The influence of shape, fluid, in the end of motor unit, can form a bit of low speed after the acceleration rectification of rotor and stator
Area's (low-pressure area）.No matter the speed of fluid has much, this section of low-pressure area can all exist, after a distance, the height in outside
Fast side fluid layer can be drawn close to this region, and just will produce friction after drawing close, between fluid causes energy loss, this is pump spray efficiency
Major influence factors, and water jet propulsion pump 7 is mounted on this area of low pressure, it will improve this problem, because low regime is phase
To low speed, fluid still has higher kinetic energy, and this satisfies the requirement of the influent stream of water jet propulsion pump 7, water jet propulsion pump 7 can be with
Play its performance.When optimal collocation, entire low-pressure section can just be filled up by the fluid that spray pump accelerated.This has just reached
Under the premise of performance pump is sprayed with spray pump respectively advantage, makes the purpose of the two disadvantage complementation, keeps propeller radiated noise of the present invention low,
Thrust loss can be less, propulsive efficiency higher.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (1)
1. combined type pump-jet propulsor, which is characterized in that including outer conduit, outer conduit is in collapsed shape, outer conduit two
End is respectively inlet and outlet, and pump-jet propulsor and spray pump propeller are arranged inside propeller, and pump-jet propulsor includes pump
Rotor, pump spray stator and pump spray motor are sprayed, pump spray motor is fixed on by four fixed-wings in outer conduit, pump spray motor rear portion
Connection pump spray rotor, the rear setting pump spray stator rectification of pump spray rotor, pump spray stator are connected with outer conduit, pump spray stator center
Place's setting spray pump impeller motor, spray pump impeller motor connect water jet propulsion pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724098.0U CN207826516U (en) | 2017-12-12 | 2017-12-12 | Combined type pump-jet propulsor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724098.0U CN207826516U (en) | 2017-12-12 | 2017-12-12 | Combined type pump-jet propulsor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207826516U true CN207826516U (en) | 2018-09-07 |
Family
ID=63386004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721724098.0U Expired - Fee Related CN207826516U (en) | 2017-12-12 | 2017-12-12 | Combined type pump-jet propulsor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207826516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972837A (en) * | 2017-12-12 | 2018-05-01 | 裴睿涛 | Combined type pump-jet propulsor |
-
2017
- 2017-12-12 CN CN201721724098.0U patent/CN207826516U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972837A (en) * | 2017-12-12 | 2018-05-01 | 裴睿涛 | Combined type pump-jet propulsor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |