CN109779954A - A kind of variable curvature Water-pump impeller of automobile - Google Patents
A kind of variable curvature Water-pump impeller of automobile Download PDFInfo
- Publication number
- CN109779954A CN109779954A CN201711110616.4A CN201711110616A CN109779954A CN 109779954 A CN109779954 A CN 109779954A CN 201711110616 A CN201711110616 A CN 201711110616A CN 109779954 A CN109779954 A CN 109779954A
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- blade
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- impeller
- automobile
- water
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Abstract
The invention discloses a kind of variable curvature Water-pump impeller of automobile, impeller blade on hub disk is set including several, the blade originate in impeller disk radius from inside to outside 4/9 at, the blade is hyperbolicity structure, including the second section that the outside first segment in the center of circle and the center of circle are inside；The curvature of the first segment is smaller than the second section, and the length of first segment is 1.8 times of the second section, this Water-pump impeller of automobile the configuration of the present invention is simple is low in cost；It is designed according to the flow of engine-cooling system and pressure demand, is determined after being analyzed using CFD, by unique blade construction, improve the anti-cavitation performance and hydraulic efficiency of auto pump.
Description
Technical field
The invention belongs to the cooling systems of automobile engine, and in particular to the water pump of automobile engine, in particular to
A kind of variable curvature Water-pump impeller of automobile.
Background technique
Impeller is to pump the part for comparing core in class product, and blade portions are a more complicated curved-surface structures,
Whether the design of blade wheel structure meets hydrodynamic characteristic, influences the height of the working efficiency of water pump and the number of energy consumption,
Since prismatic blade design causes to be easy to produce reflux or whirlpool inside water pump, therefore auto pump is mostly arc shaped blade, arc at present
Blade ring is fixed on wheel disc around connector, easy to process, but cavitation-resistance is poor, and the service life of water pump blade is low, is needed
Often replacement blade.
Summary of the invention
The purpose of the present invention is improving the anti-cavitation performance and hydraulic efficiency of auto pump by setting blade construction, this
Invention provides a kind of variable curvature Water-pump impeller of automobile.
The technical scheme is that a kind of variable curvature Water-pump impeller of automobile, including several settings are in hub disk
On impeller blade, the blade originate in impeller disk radius from inside to outside 4/9 at, the blade be hyperbolicity knot
Structure, including the second section that the outside first segment in the center of circle and the center of circle are inside；The curvature of the first segment is smaller than the second section, and first
The length of section is 1.8 times of the second section.
Further, 3 pressure releasing holes are symmetrically arranged on the hub disk, the pressure releasing hole is arranged in 2 blades
Between second section.
The beneficial effects of the present invention are: this Water-pump impeller of automobile according to the flow of engine-cooling system and pressure demand into
Row design, determines after analyzing using CFD, by unique blade construction, improves the anti-cavitation performance and waterpower of auto pump
Efficiency.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
In figure: 1 is first segment, and 2 be the second section, and 3 be pressure releasing hole.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Such as Fig. 1, the impeller blade on hub disk is arranged in including several in a kind of variable curvature Water-pump impeller of automobile,
The blade originate in impeller disk radius from inside to outside 4/9 at, the blade is hyperbolicity structure, including the center of circle is outside
Inside the second section 2 of first segment 1 and the center of circle；The curvature of the first segment 1 is smaller than the second section 2, and the length of first segment 1 is
1.8 times of second section 2.
3 pressure releasing holes 3 are symmetrically arranged on the hub disk, the pressure releasing hole 3 is arranged in 2 the second sections of blade 2
Between.
Cavitation principle: when pressure for vaporization at a temperature of the absolute pressure for pumping liquid drops at that time, liquid is at this
Start wild flower and generates steam formation bubble, when this bubble reaches at high pressure, bubble pressure-rupturable, liquid matter while rupture
Point will occur mutually to hit and form water attack with high speed impact filling hole.Thus obtaining prevents pump cavitation from occurring most
Whole condition is the pressure for vaporization of the coolant liquid at a temperature of pump intake pressure is greater than at that time, by formula Q=AV, PV=
NRTA/Q obtains P=nRTA/Q, and wherein P is the pressure at import of water pump impeller end, and n is the amount of substance, and R is mol gas constant,
T is open type temperature, and A is the area of 1 input end of blade, and Q is flow, and the area on the inclined-plane 4 of 1 input end of blade processing is greater than original
The area of 1 input end end of blade, i.e. the area A of 1 input end of blade increase, in this way in the feelings for keeping the original performance of water pump constant
Under condition, so that the pressure P at import of water pump impeller end increases, to improve water pump anti-cavitation performance.
This Water-pump impeller of automobile the configuration of the present invention is simple, it is low in cost.According to the flow and pressure of engine-cooling system
Demand is designed, and is determined after analyzing using CFD, by unique blade construction, is improved the anti-cavitation performance of auto pump
And hydraulic efficiency.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (2)
1. a kind of variable curvature Water-pump impeller of automobile, which is characterized in that the impeller leaf on hub disk is arranged in including several
Piece, the blade originate in impeller disk radius from inside to outside 4/9 at, the blade is hyperbolicity structure, including the center of circle
The second section (2) of outside first segment (1) and the center of circle inwardly；The curvature of the first segment (1) is smaller than the second section (2), and the
The length of one section (1) is 1.8 times of the second section (2).
2. a kind of variable curvature Water-pump impeller of automobile according to claim 1, which is characterized in that on the hub disk
3 pressure releasing holes (3) are symmetrically arranged with, the pressure releasing hole (3) is arranged between 2 the second sections of blade (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110616.4A CN109779954A (en) | 2017-11-12 | 2017-11-12 | A kind of variable curvature Water-pump impeller of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110616.4A CN109779954A (en) | 2017-11-12 | 2017-11-12 | A kind of variable curvature Water-pump impeller of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779954A true CN109779954A (en) | 2019-05-21 |
Family
ID=66485414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711110616.4A Pending CN109779954A (en) | 2017-11-12 | 2017-11-12 | A kind of variable curvature Water-pump impeller of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779954A (en) |
-
2017
- 2017-11-12 CN CN201711110616.4A patent/CN109779954A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |