CN206636825U - A kind of automobile engine cooling water pump composite impeller - Google Patents
A kind of automobile engine cooling water pump composite impeller Download PDFInfo
- Publication number
- CN206636825U CN206636825U CN201720294824.3U CN201720294824U CN206636825U CN 206636825 U CN206636825 U CN 206636825U CN 201720294824 U CN201720294824 U CN 201720294824U CN 206636825 U CN206636825 U CN 206636825U
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- China
- Prior art keywords
- blade
- water pump
- wheel
- wheel disc
- cooling water
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- 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.)
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Abstract
The utility model provides a kind of automobile engine cooling water pump composite impeller, including wheel disc, wheel hub, wheel cap and multiple blades, the wheel hub on the inside of wheel disc with being integrally formed, the blade is arc shape, and circumferentially arranged between wheel disc and wheel cap, and blade includes 7~9 linear leafs and 7~9 short blades, linear leaf is arranged at intervals with short blade, the linear leaf cornerite is 30 °~50 °, and short blade cornerite is 10 °~15 °, circumferentially there is 4 balance pipes on wheel disc；The utility model can be effectively improved the jet of impeller outlet --- and wake structure, make diffusion of the fluid in runner more uniform, enhance the cavitation performance of water pump.4 balance pipes can play a part of balancing axial thrust simultaneously, and therefore, the cavitation performance under big flow, high-lift operating mode is superior, and operating efficiency is high, can meet the cooling requirement of different high-powered automobiles engines.
Description
Technical field
It the utility model is related to technical field of automobile accessories, more particularly to a kind of compound leaf of automobile engine cooling water pump
Wheel.
Background technology
Auto pump is the important component of engine-cooling system, and it is the pressure for improving coolant that it, which is acted on, makes coolant
Circulated in cooling water channel in engine-cooling system, so as to take away heat caused by engine work.Automobile is sent out at present
Motivation especially high-powered engine requires more and more higher to the performance (such as cavitation performance, flow, lift) of cooling water pump, makes
Cooling water pump rotating speed it is very high, the centrifugal force and coriolis force that liquid is subject in impeller are larger, and vane inlet is also easy to produce secondary back,
The suction surface and pressure face velocity gradient of blade exit are excessive, are also easy to produce wake flow and jet etc., and the excessive number of blade then can
Increase the exclusion at vane inlet.Moreover, more seriously, cooling water pump is cold in water pump in big flow operating mode
But liquid is driven by impeller and rotated together, is thrown toward the edge of water pump cover under the influence of centrifugal force, while cause coolant
Pressure increases.And when the pressure for the coolant pumped is dropped to below the pressure for vaporization of local temperature, vapour can occur for coolant
Change and produce bubble, can rupture when at the bubbly flow to high pressure, liquid particle will be with high speed impact while rupture
Filling hole, hits blade surface, the vibration noise increase of water pump, and prolonged impact can form pit fiber crops in blade surface
Hole, easily occurs cavitation, causes vibration noise to increase, and efficiency reduces, and has a strong impact on the normal work of engine, or even complete machine is made
Into havoc, this greatly limits the cooling of high-powered automobiles engine requirement.
China Patent Publication No. CN201786735U discloses a kind of Water-pump impeller of automobile, and it is made up of blade and wheel disc,
Wheel disk center has the connecting hole passed through for rotary shaft, and blade is arc shaped blade, and it is same that its blade ring around connecting hole is fixed on wheel disc
On the end face of side.Above-mentioned Water-pump impeller of automobile, although easy to process, anti-cavitation performance is bad, especially blade inlet edge blade root
Cavitation easily occurs for place, and blade root and the flow behavior on leaf top have differences, and backflow or whirlpool are easily produced inside water pump, is caused
Impeller adiabatic efficiency is relatively low.
Utility model content
For Shortcomings in the prior art, the utility model provides a kind of compound leaf of automobile engine cooling water pump
Wheel.
The utility model is to realize above-mentioned technical purpose by following technological means.
A kind of automobile engine cooling water pump composite impeller, including wheel disc, wheel hub, wheel cap and multiple blades, the wheel hub
With being integrally formed on the inside of wheel disc, the blade is circumferentially arranged between wheel disc and wheel cap, and one end and the wheel disc of the blade connect
It is integrated, the other end is connected as a single entity with wheel cap；The blade is arc shape, and blade includes 7~9 linear leafs and 7~9 short leaves
Piece, linear leaf are arranged at intervals with short blade, and the linear leaf cornerite is 30 °~50 °, and short blade cornerite is 10 °~15 °, wheel disc
On circumferentially have 4 balance pipes.
Preferably, circumferentially equidistantly distributed, the quantity of wherein linear leaf and short blade are equal for the linear leaf and short blade
For 8.
Preferably, the linear leaf molded line is hyperbolicity circular arc, and the short blade molded line is single-curvature circular arc.
Preferably, the linear leaf cornerite is 40 °, and short blade cornerite is 12 °.
Preferably, the relation between short blade inlet diameter D2 and linear leaf the inlet diameter D1 be for：D2=
1.5D1。
The beneficial effects of the utility model：
1) the utility model reduces row of the incoming at impeller inlet by the way of linear leaf and short blade are combined
Squeeze, increase inlet -duct area, reduce the flow velocity of liquid, so as to improve the pressure of incoming at impeller inlet, greatly strengthen
The anti-cavitation performance of water pump.
2) short blade in the utility model can make it that diffusion of the fluid in runner is more uniform, and therefore, fluid exists
Reduce from movement disorder degree after impeller outlet outflow, substantially improve wake flow --- the structure of jet, vibration and noise are reduced,
Operating efficiency is improved, cooling requirement of the different high-power engines under big flow, high-lift operating mode can be met.
3) simply, conveniently, manufacturing cost is low for the utility model processing, can meet that the cooling of high-powered automobiles engine will
Ask.
Brief description of the drawings
Fig. 1 is a kind of structural representation of automobile engine cooling water pump composite impeller described in the utility model.
Fig. 2 is a kind of axis projection of automobile engine cooling water pump composite impeller described in the utility model.
Fig. 3 is blade form drawing described in the utility model.
Wherein：
1. wheel disc；2. linear leaf；3. short blade；4. wheel hub；5. wheel cap；6. balance pipe.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is further described to the utility model, but guarantor of the present utility model
Shield scope is not limited to this.
As shown in figure 1, a kind of automobile engine cooling water pump composite impeller described in the utility model, including wheel disc 1, wheel
Hub 4, wheel cap 3, multiple blades.
As shown in Fig. 2 the wheel hub 4 is integrally formed with the inner side of wheel disc 1, the blade is along the circumferential direction in wheel disc 1 and wheel
Between lid 3, one end and the wheel disc 1 of blade are connected as a single entity, and the other end is connected as a single entity with wheel cap 3, and blade includes 7~9 linear leafs 2
With 7~9 short blades 3, linear leaf 2 is arranged at intervals with short blade 3.
As shown in figure 3, the molded line of linear leaf 2 is hyperbolicity circular arc, the molded line of short blade 3 is single-curvature circular arc, institute
The cornerite of linear leaf 2 is stated as 30 °~50 °, the cornerite of short blade 3 is 10 °~15 °, the inlet diameter D2 of short blade 3 and linear leaf 2
Relation between inlet diameter D1 be for：D2=1.5D1.Circumferentially there are 4 balance pipes 6 on wheel disc 1, balance can be played
The effect of axial force.
Above-described embodiment is only the preferable embodiment of this patent, impeller during for example with 8 linear leafs and 8 short blades
Cavitation performance it is optimal, linear leaf cornerite be 40 °, short blade cornerite be 12 ° when impeller efficiency highest.
The pressure for being to cause coolant at impeller inlet at all that cavitation occurs is prevented to be more than the vapour under local temperature
Change pressure, pressure P=nRTA/Q, wherein P are pressure of the incoming in entrance, and n is the amount of material, and R is mol gas constant, T
For kelvin degree, A is the area at vane inlet, and Q is flow, it follows that the area of increase entrance, so that it may make incoming
Pressure increases.This composite impeller reduces row of the incoming at impeller inlet by the way of linear leaf and short blade are combined
Squeeze, increase inlet -duct area, reduce the flow velocity of liquid, so as to improve the pressure of incoming at impeller inlet, greatly strengthen
The anti-cavitation performance of water pump.Meanwhile short blade can make it that diffusion of the fluid in runner is more uniform, therefore, fluid from
Movement disorder degree reduces after impeller outlet outflow, substantially improves wake flow --- the structure of jet.
The embodiment is preferred embodiment of the present utility model, but the utility model is not limited to above-mentioned embodiment party
Formula, in the case of without departing substantially from substantive content of the present utility model, those skilled in the art can make any apparent
Improvement, replacement or modification belong to the scope of protection of the utility model.
Claims (5)
1. a kind of automobile engine cooling water pump composite impeller, including wheel disc (1), wheel hub (4), wheel cap (5) and multiple blades, institute
Wheel hub (4) is stated with being integrally formed on the inside of wheel disc (1), the blade is circumferentially arranged between wheel disc (1) and wheel cap (5), described
One end of blade is connected as a single entity with wheel disc (1), and the other end is connected as a single entity with wheel cap (5)；Characterized in that, the blade is arc
Shape, blade include 7~9 linear leafs (2) and 7~9 short blades (3), and linear leaf (2) is arranged at intervals with short blade (3), described
Linear leaf (2) cornerite is 30 °~50 °, and short blade (3) cornerite is 10 °~15 °, circumferentially has 4 balances on wheel disc (1)
Hole (6).
2. automobile engine cooling water pump composite impeller according to claim 1, it is characterised in that the linear leaf (2)
With short blade (3) circumferentially equidistantly distributed, the wherein quantity of linear leaf (2) and short blade (3) is 8.
3. automobile engine cooling water pump composite impeller according to claim 1, it is characterised in that the linear leaf (2)
Molded line is hyperbolicity circular arc, and short blade (3) molded line is single-curvature circular arc.
4. automobile engine cooling water pump composite impeller according to claim 3, it is characterised in that the linear leaf (2)
Cornerite is 40 °, and short blade (3) cornerite is 12 °.
5. automobile engine cooling water pump composite impeller according to claim 3, it is characterised in that the short blade (3)
Relation between inlet diameter D2 and linear leaf (2) inlet diameter D1 be for：D2=1.5D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720294824.3U CN206636825U (en) | 2017-03-24 | 2017-03-24 | A kind of automobile engine cooling water pump composite impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720294824.3U CN206636825U (en) | 2017-03-24 | 2017-03-24 | A kind of automobile engine cooling water pump composite impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636825U true CN206636825U (en) | 2017-11-14 |
Family
ID=60260136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720294824.3U Expired - Fee Related CN206636825U (en) | 2017-03-24 | 2017-03-24 | A kind of automobile engine cooling water pump composite impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206636825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869392A (en) * | 2018-08-06 | 2018-11-23 | 杭州老板电器股份有限公司 | Composite impeller, centrifugal blower and range hood |
| CN112555200A (en) * | 2020-11-20 | 2021-03-26 | 西安理工大学 | Multistage gas-liquid mixed transportation pump suitable for high gas content |
-
2017
- 2017-03-24 CN CN201720294824.3U patent/CN206636825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869392A (en) * | 2018-08-06 | 2018-11-23 | 杭州老板电器股份有限公司 | Composite impeller, centrifugal blower and range hood |
| CN112555200A (en) * | 2020-11-20 | 2021-03-26 | 西安理工大学 | Multistage gas-liquid mixed transportation pump suitable for high gas content |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20190324 |