CN108119416B - Without leaf cooling fan and engine system - Google Patents
Without leaf cooling fan and engine system Download PDFInfo
- Publication number
- CN108119416B CN108119416B CN201611064003.7A CN201611064003A CN108119416B CN 108119416 B CN108119416 B CN 108119416B CN 201611064003 A CN201611064003 A CN 201611064003A CN 108119416 B CN108119416 B CN 108119416B
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- Prior art keywords
- annular
- wind pipe
- wall
- aerofoil profile
- cooling fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
Abstract
A kind of no leaf cooling fan and engine system, wherein, no leaf cooling fan includes the wind pipe of structure annular in shape, annular barrier wall is equipped in the wind pipe, the outer wall of the annular barrier wall and the wind pipe forms first annular cavity, inner wall the second toroidal cavity of formation of the annular barrier wall and the wind pipe；It is equipped with first annular runner in the first annular cavity, is equipped with the second annular channel in second toroidal cavity；The radial cross-sectional area of the first annular runner is greater than the radial cross-sectional area of second annular channel, and the gas after the first annular cavity, the second toroidal cavity followed by being discharged.Therefore, when gas flows into the second annular channel from first annular runner, due to the reduction of area of section, the flow velocity of gas is accelerated, and flow velocity of the gas at cooling fan air outlet is increased, so as to promote cooling effect.
Description
Technical field
The present invention relates to automobile technical fields, and in particular to a kind of no leaf cooling fan and engine system.
Background technique
Automobile engine during operation, can generate a large amount of heat, increase the temperature of engine body.When starting
Machine when the temperature is excessively high, can generate many undesirable consequences, such as: make the excessively high influence greasy property of the temperature of lubricating oil, makes air inlet
Excessively high reduction engine operating efficiency of temperature etc..
Therefore, usually in engine environment setting cooling water system for reducing the temperature of engine.Specifically in engine
Surrounding arrangement pipeline and water tank, circulate cooling water between pipeline, water tank.Cooling fan setting is used in water tank side
In the temperature for reducing cooling water in water tank.
The cooling fan of the prior art generally by having brush permanent magnet DC motor or brushless permanent magnet DC motor, drives fan
Leaf rotation, to play the effect of feed-tank heat dissipation.It referring to Fig.1, is the three-dimensional structure diagram of prior art cooling fan, including fan
Leaf 1, the motor 2 for driving flabellum 1 to be rotated, the shield solar or lunar halo 3 for preventing external interference flabellum 1 from running well.
Motor 2 drives flabellum 1 to rotate the technical effect for playing feed-tank heat dissipation.
Above-mentioned radiating mode has the disadvantage in that
One, the working efficiency of prior art cooling fan are lower, therefore cooling effect is bad；To promote cooling effect
Fruit generally requires raising power of motor, not only will increase energy consumption, while also will increase the axial length of motor, influences engine
Effective arrangement in cabin space；
Secondly, prior art cooling fan by flabellum rotation air is cut to achieve the purpose that air-supply, flabellum
Noise can be generated in rotary course, flabellum causes air irregular movement that can also generate noise during cutting air,
The noise of engine in the process of running is increased on the whole；
Thirdly, prior art cooling fan there is also some potential safety problems, when have foreign matter be caught in flabellum and shield solar or lunar halo it
Between when flabellum can not operate normally, motor rotation blockage is possible to the danger for causing to burn vehicle when serious.
Summary of the invention
Problems solved by the invention is in the prior art that the working efficiency of cooling fan of engine is lower, in operational process
Biggish noise and the security risk there are motor rotation blockage can be generated.
To solve the above problems, the present invention provides a kind of no leaf cooling fan, the wind pipe including structure annular in shape, institute
It states and is equipped with annular barrier wall in wind pipe, the outer wall of the annular barrier wall and the wind pipe forms first annular sky
The inner wall of chamber, the annular barrier wall and the wind pipe forms the second toroidal cavity；It is equipped in the first annular cavity
First annular runner, second toroidal cavity is interior to be equipped with the second annular channel；The radial section face of the first annular runner
Product is greater than the radial cross-sectional area of second annular channel, and gas is empty followed by the first annular cavity, the second annular
It is discharged after chamber.
Optionally, the annular barrier wall is fixed on the outer wall.
Optionally, axial one end of the annular barrier wall circumferentially fits in the outer wall for 360 °, and with the outer wall
It is fixedly mounted with.
Optionally, the outer profile of the wind pipe axial cross section is the first aerofoil profile, and the leading edge of first aerofoil profile is round and smooth
The rear of transition, first aerofoil profile forms tip, and the air outlet of the wind pipe is located at the rear of first aerofoil profile.
Optionally, the inner wall, outer wall surround toroidal cavity, and the axial cross section of the toroidal cavity is the second aerofoil profile, institute
The leading edge rounding off of the second aerofoil profile is stated, the rear of second aerofoil profile forms tip, and the air outlet is also located at described second
The rear of aerofoil profile.
Optionally, the axial cross section of the annular barrier wall be third aerofoil profile, the leading edge rounding off of the third aerofoil profile,
The rear of the third aerofoil profile forms tip, and the air outlet is also located at the rear of the third aerofoil profile.
Optionally, the length of the upper camber line of first aerofoil profile is greater than the length of the lower camber line of first aerofoil profile；It is described
Upper camber line forms the inner peripheral surface of the wind pipe, and the lower camber line forms the outer peripheral surface of the wind pipe.
Optionally, the wind pipe further includes deflector, and the deflector setting is in the outer wall and the annular resistance
Between next door, it is fixedly connected with the outer wall and the annular barrier wall, the deflector will be for that will be in the first annular sky
Intracavitary gas flow guiding is to the second toroidal cavity.
Optionally, the no leaf cooling fan further includes air-intake device, and the air-intake device is connected to the first annular sky
Chamber, for blowing to the first annular cavity.
In order to solve the above technical problems, the present invention also provides a kind of engine system, including any one of claim 1-9 institute
State without leaf cooling fan.
Compared with prior art, technical solution of the present invention has the advantage that
The technical program provides a kind of no leaf cooling fan, and the wind pipe including cyclic structure utilizes air-intake device pair
Wind pipe is blown, and gas is discharged the purpose for realizing cooling from the air outlet of wind pipe.By the nothing of the technical program
When leaf cooling fan is applied to automobile engine, since there is no flabellum, therefore there is no flabellum in rotary course, cutting
The technical issues of noise is generated during air；Meanwhile also there is no foreign matter be caught in flabellum cause flabellum can not operate normally,
The technical issues of motor rotation blockage.
The technical program without leaf cooling fan by the way that first annular runner, the second annular flow are arranged in wind pipe
Road, the radial cross-sectional area of first annular runner are greater than the radial cross-sectional area of the second annular channel, and gas is followed by the
It is discharged after one annular channel, the second annular channel.Therefore, when gas flows into the second annular channel from first annular runner,
Due to the reduction of area of section, the flow velocity of gas is accelerated, and increases flow velocity of the gas at cooling fan air outlet, so as to
Promote cooling effect.Because of the power of motor without increasing cooling fan of engine, the effective of enging cabin space will not influence
Arrangement.
After gas is discharged from air outlet, since the flow velocity of gas is very fast, due to rarefaction of air shape immediately ahead of air outlet
At negative pressure, the air around wind pipe flows to immediately ahead of air outlet along blowing direction, strengthens airflow effects.Further
, the outer profile of wind pipe axial cross section is the first aerofoil profile, therefore can make the flowing of the smooth air around wind pipe
Immediately ahead of to air outlet, reinforce airflow effects.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of prior art cooling fan of engine of the present invention；
Fig. 2 is three-dimensional structure diagram of the specific embodiment of the invention without leaf cooling fan；
Fig. 3 is sectional view of the no leaf cooling fan shown in Fig. 2 along the direction A-A；
Fig. 4 is sectional view of the no leaf cooling fan shown in Fig. 2 along the direction B-B；
Fig. 5 is the structural schematic diagram of specific embodiment of the invention deflector installation on the outer wall；
Fig. 6 is flow schematic diagram of the specific embodiment of the invention gas in wind pipe.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Referring to Fig. 2, the present invention provides a kind of no leaf cooling fan 100, wind pipe 10 and company including structure annular in shape
The air-intake device 20 of pass-out air piping 10.Wind pipe 10 has the air outlet for being located at axial one end, and air-intake device 20 is connected to out
Air piping 10 provides gas for wind pipe 10, and gas flow in wind pipe 10 and is discharged through air outlet (hollow in such as figure
Shown in arrow), form airflow effects.So as to make the air positioned at no 100 front of leaf cooling fan accelerate flowing, heat is taken away
Amount, realizes the purpose to cool.
In no 100 course of work of leaf cooling fan, gas is endlessly discharged from the air outlet of wind pipe 10, is made
It obtains the air being located in front of wind pipe 10 to be dispelled, which forms negative pressure, on the one hand, the sky positioned at 10 rear of wind pipe
Gas can pass through the cavity that wind pipe 10 is surrounded, and be supplemented to 10 front (as shown in arrow a in figure) of wind pipe, strengthen
Airflow effects；On the other hand, the air around wind pipe 10 can be supplemented to discharge pipe from the periphery of wind pipe 10
10 front (as shown in arrow b in figure) of road, further strengthens airflow effects.Therefore, heat can be more effectively taken away, is realized cold
But the purpose to cool down.
When the front of no leaf cooling fan 100 is automobile engine, no leaf cooling fan 100 can take away engine institute
The heat of generation realizes the cooling to engine.
It is the A-A directional profile figure of wind pipe 10 referring to Fig. 3, the wind pipe 10 of cyclic structure has radially side
To the outer wall 11 and inner wall 12 of the structure annular in shape being oppositely arranged, axial one end of outer wall 11 and inner wall 12 is fixed, and surrounds ring
The axial other end of wind pipe 10 is arranged in shape cavity oo, air outlet 14.
In the present embodiment, annular barrier wall 13 is also fixed in wind pipe 10, annular barrier wall 13 is located at outer wall
Between 11 and inner wall 12, toroidal cavity oo is divided into first annular cavity aa, the second toroidal cavity bb；Specifically, annular resistance
Next door 13 and outer wall 11 surround first annular cavity aa, and annular barrier wall 13 and inner wall 12 surround the second toroidal cavity bb.
It is equipped with first annular runner in first annular cavity aa, is equipped with the second annular channel in the second toroidal cavity bb.The
The radial cross-sectional area of one annular channel is greater than the radial cross-sectional area of the second annular channel, and the gas in wind pipe 10 is successively
It is discharged after flowing through first annular cavity aa, the second toroidal cavity bb from air outlet 14, the direction of continuous arrow meaning is in figure
For the flow direction of gas.
Therefore, when gas flows into the second annular channel from first annular runner, since the area of section of runner reduces, gas
The flow velocity of body is accelerated, and flow velocity of the gas at air outlet 14 is capable of increasing, so as to promote cooling effect.
Since flow velocity of the gas at air outlet 14 is accelerated, more efficiently can dispel positioned at 10 front of wind pipe
Air, so that the air pressure in the region is lower, the air around 10 rear of wind pipe and wind pipe 10 can be drawn
It is directed at the front of wind pipe 10, reinforces airflow effects.
Moreover, in the present embodiment without leaf cooling fan 10 due to there is no flabellum, there is no flabellums in rotary course
The technical issues of middle generation noise；Meanwhile also there is no foreign matter be caught in flabellum cause the flabellum to can not operate normally, motor rotation blockage
Technical problem.
With continued reference to Fig. 3, the annular barrier wall 13 in the present embodiment is fixed on outer wall 11.Specifically, annular resistance
The axial one end in next door 13 circumferentially fits in outer wall 11 for 360 °, and is fixedly mounted with outer wall 11.Therefore, the axis of first annular cavity aa
To closed at one end, the axial other end is connected to the second toroidal cavity bb, so that gas can only be successively through first annular cavity aa,
It is discharged after second ring cavity bb.
It is arranged such, additionally it is possible to utilize annular barrier wall 13 to the full extent, there is first annular cavity aa bigger
Space for accommodating gas, guidance gas is flowed in first annular cavity aa.In other embodiments, it can also be hindered in annular
Annular interconnecting piece is set between next door 13, outer wall 11, is fixed at annular interconnecting piece one end on annular barrier wall 13, annular
The interconnecting piece other end is fixed on outer wall 11, and annular barrier wall 13 is fixed on outer wall 11.
In the present embodiment, axially one end is fixedly connected outer wall 11 with annular barrier wall 13.It therefore, can be in maximum journey
Outer wall 11 is utilized on degree, is made first annular cavity aa have bigger space for accommodating gas, is guided gas first annular
Cavity aa flowing.In other embodiments, annular barrier wall 13 can also be fixed at the other positions of outer wall 11.
With continued reference to Fig. 3, the outer profile of 10 axial cross section of wind pipe is aerofoil profile, and aerofoil profile is also referred to as wing section, refers to aircraft
The shape of wing, lifting airscrew, turbine iso-cross-section.Aerofoil profile has leading edge, rear and the upper arc between leading edge, rear
Line, lower camber line, the shape that leading edge, upper camber line, rear, lower camber line are surrounded is aerofoil profile.
In the present embodiment, the shape of the outer profile of 10 axial cross section of wind pipe is known as the first aerofoil profile 10a, the first aerofoil profile
10a includes camber line 13a, the first lower camber line 14a on the first leading edge 11a, the first rear 12a, first.First aerofoil profile 10a is first
Rounding off at the position leading edge 11a, the first aerofoil profile 10a form tip at the first position rear 12a, and air outlet 14 is located at first
The position rear 12a.
That is, axial one end of 10 outer profile of wind pipe forms ringed tip, air outlet 14 is arranged in the ring-type
At tip, therefore, the area of section of air outlet 14 is smaller, can increase the flow velocity of gas, the gas tool being discharged from air outlet 14
There is higher flow velocity, the air positioned at 10 front of wind pipe can be dispelled so that forming negative pressure in the region and be located at discharge pipe
The air flow of 10 rear of road and surrounding reinforces airflow effects to the front of wind pipe 10.
Since the outer profile of 10 axial cross section of wind pipe is the first aerofoil profile 10a, the air around wind pipe 10
Camber line 13a, the first lower camber line 14a 10 front of wind pipe can be smoothly flowed to along first, it will not be to the flowing of air
It causes to hinder.Compared to other shapes, it is more advantageous to air flowing, reinforces airflow effects.
In the present embodiment, the length of camber line 13a is greater than the length of the first lower camber line 14a, and camber line 13a on first on first
The inner peripheral surface of wind pipe 10 is formed, the first lower camber line 14a forms the outer peripheral surface of wind pipe 10.
When the front of wind pipe 10 because when air is dispelled to form negative pressure, the air of 10 rear of wind pipe and surrounding
The front of wind pipe 10 is flowed to through camber line 13a, the first lower camber line 14a on first.And air from the first leading edge 11a along first
Upper camber line 13a flow to the time used in the first rear 12a equal to air from the first leading edge 11a along the first lower camber line 14a flowing
To the time used in the first rear 12a.
Since the length of camber line 13a on first is greater than the length of the first lower camber line 14a, flow through camber line 13a on first
The flow velocity of air can be faster.That is, passing through flow velocity (a arrow in Fig. 2 for the air of cavity that wind pipe 10 is surrounded
It is shown), greater than the flow velocity for the air for flowing to 10 front of wind pipe from the periphery of wind pipe 10 (in Fig. 2 shown in b arrow).
No 100 face of leaf cooling fan needs object to be cooled, such as engine etc..It is surrounded across wind pipe 10
The air of cavity be generally possible to flow directly into object to be cooled；Therefore, the air shown in a arrow is compared to shown in b arrow
Air have higher flow velocity when, then can better play the effect to cool.
With continued reference to Fig. 3, the axial cross section of toroidal cavity oo is also aerofoil profile, is specifically referred to as the second aerofoil profile 10b, second
Aerofoil profile 10b includes camber line 13b, the second lower camber line 14b on the second leading edge 11b, the second rear 12b, second.Second aerofoil profile 10b exists
Rounding off at second position leading edge 11b, forms tip at the second position rear 12b, and air outlet 14 is located at the second rear 12b
Position.
That is, the first leading edge 11a, the second leading edge 11b are located at axial the same end of wind pipe 10, the first rear
12a, the second rear 12b are located at the axial other end of wind pipe 10.
Toroidal cavity oo is designed to air foil shape, the gas being located in toroidal cavity oo can be made more smoothly to flow,
Gas is set to obtain faster speed.
Specifically, camber line 13a on first, camber line 13b is located at the same side of toroidal cavity oo, the first lower camber line on second
14a, the second lower camber line 14b are located at the other side of toroidal cavity oo.
In the present embodiment, the axial cross section of annular barrier wall 13 be also be aerofoil profile, be specifically referred to as third aerofoil profile 10c,
Third aerofoil profile 10c includes third leading edge 11c, third rear 12c, camber line 14c under camber line 13c, third in third.Third aerofoil profile
10c rounding off at the position third leading edge 11c forms tip, after air outlet 14 is located at third at the position third rear 12c
The position edge 12c.
That is, the first leading edge 11a, the second leading edge 11b, third leading edge 11c are respectively positioned on the axial same of wind pipe 10
One end, the first rear 12a, the second rear 12b, third rear 12c are respectively positioned on the axial other end of wind pipe 10.
Annular barrier wall 13 is designed to air foil shape, can equally make the gas being located in toroidal cavity oo more smoothly
Flowing makes gas obtain faster speed.
Specifically, camber line 13c is respectively positioned on annular barrier wall 13 in camber line 13a on first, camber line 13b on second, third
The same side, camber line 14c is respectively positioned on the other side of annular barrier wall 13 under the first lower camber line 14a, the second lower camber line 14b, third.
So set, camber line 13b on second, camber line 13c all has relatively long length in third, the first ring can be made
The variation of shape cavity aa in the axial direction is more gentle, flows the gas being located in first annular cavity aa smoothly；The
Two lower camber line 14b, lower camber line 14c all have relatively short length, can make the second toroidal cavity bb in the axial direction
Variation it is more gentle, make be located at the second toroidal cavity bb in gas smoothly flow.
Simultaneously, additionally it is possible to which first annular runner is arranged in first annular cavity aa in relatively convenient, empty in the second annular
Second annular channel is set in chamber bb, and the radial direction for making the radial cross-sectional area of first annular runner be greater than the second annular channel is cut
Face area.
It is the B-B directional profile of wind pipe 10 referring to Fig. 4 in order to better understand technical solution of the present invention
Figure, wherein continuous arrow is the gas flow direction in wind pipe 10.
In the present embodiment, air-intake device 20 is connected to first annular cavity aa, and air-intake device 20 feeds gas into the first ring
Shape cavity aa, gas is discharged after flowing through first annular cavity aa, the second toroidal cavity aa from air outlet 14, and is accelerated.
Air-intake device 20 can be cyclic structure, circumferentially uniform to blow for first annular cavity aa；It can also be
Opening is set on outer wall 11, connects the opening and air-intake device 20, air-intake device 20 is first annular cavity by the opening
Aa blows.In specific the present embodiment, the side of wind pipe 10 radially is arranged in air-intake device 20, by outside
Opening is set on wall 11, air-intake device 20 is made to blow by the first annular cavity aa of the opening.
Therefore, flow direction of the gas in wind pipe 10 can specifically be divided into: along the circumferential direction of wind pipe 10
And axial direction.Specifically, on the one hand, gas makes gas full of entire first annular along first annular cavity aa circumferential flow
Cavity aa；On the other hand, gas is axially flowed along first annular cavity aa, and gas is made to flow into the second ring from first annular cavity aa
Shape cavity bb, and be discharged.
Referring to Fig. 5, in the present embodiment, in order to guide gas that can smoothly enter the second ring in first annular cavity aa
Shape cavity bb, wind pipe 10 further include deflector 15, the setting of deflector 15 outer wall 11 and annular barrier wall 13 (in Fig. 5 not
Show) in the first annular cavity aa that is surrounded, deflector 15 is fixedly connected with outer wall 11 and annular barrier wall 13, for that will be in
Gas flow guiding in first annular cavity aa is to the second toroidal cavity bb.Specifically, wind pipe 10 includes multiple deflectors 15,
Deflector 15 is uniformly distributed circumferentially.It as shown by arrows in figure, is the flow direction of gas.
In the present embodiment, the cross sectional shape of deflector 15 is also aerofoil profile.Therefore, when gas flows through deflector 15, one
Divide gas that can smoothly be guided in the second toroidal cavity bb, makes gas by lesser obstruction.
In addition, deflector 15 is fixedly connected with outer wall 11 and annular barrier wall 13.It is thus possible to enough reinforce outer wall 11 and annular
Connection between barrier rib 13, effective stationary annular barrier rib 13.
Referring to Fig. 6, no leaf cooling fan 100 is shown at work, the gas flow direction in wind pipe 10, and go out
Gas flow direction outside air piping 10.As shown in the figure, air-intake device 20 feeds gas into first annular cavity aa, the first ring
A part of gas in shape cavity aa enters the second toroidal cavity bb after 15 water conservancy diversion of deflector, and another part continues circumferentially side
To movement, gas is made to be full of entire first annular cavity aa.
After gas is discharged from air outlet (not shown), the air positioned at 10 front of wind pipe is dispelled, should
Region forms negative pressure, and the portion of air around wind pipe 10 can pass through the cavity that wind pipe 10 is surrounded, and is supplemented to
10 front (as shown in arrow a in figure) of wind pipe, strengthens airflow effects；Another part air energy around wind pipe 10
It is enough to be supplemented to 10 front (as shown in arrow b in figure) of wind pipe from the periphery of wind pipe 10, further strengthen airflow effects.
The present invention also provides a kind of engine systems, including above-described no leaf cooling fan 100 and engine.Start
Machine is positioned at the front of no leaf cooling fan 100, and no leaf cooling fan 100 is for radiating to engine.
The shape of the wind pipe 10 of no leaf cooling fan can be specifically arranged according to engine, and general engine is towards cold
But the shape of fan side is rectangular shape, and in the present embodiment, wind pipe 10 is designed to approximate rectangular shape.In other realities
It applies in example, can be specifically arranged according to the concrete shape of engine.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of no leaf cooling fan, the wind pipe including structure annular in shape, which is characterized in that be equipped in the wind pipe
The outer wall of annular barrier wall, the annular barrier wall and the wind pipe forms first annular cavity, the annular barrier wall
The second toroidal cavity is formed with the inner wall of the wind pipe；
It is equipped with first annular runner in the first annular cavity, is equipped with the second annular channel in second toroidal cavity；Institute
The radial cross-sectional area for stating first annular runner is greater than the radial cross-sectional area of second annular channel, and gas is followed by institute
It is discharged after stating first annular cavity, the second toroidal cavity.
2. as described in claim 1 without leaf cooling fan, which is characterized in that the annular barrier wall is fixed at described outer
On wall.
3. as claimed in claim 2 without leaf cooling fan, which is characterized in that axial one end of the annular barrier wall is circumferentially
360 ° fit in the outer wall, and are fixedly mounted with the outer wall.
4. as described in claim 1 without leaf cooling fan, which is characterized in that the outer profile of the wind pipe axial cross section is
The rear of first aerofoil profile, the leading edge rounding off of first aerofoil profile, first aerofoil profile forms tip, the wind pipe
Air outlet is located at the rear of first aerofoil profile.
5. as claimed in claim 4 without leaf cooling fan, which is characterized in that the inner wall, outer wall surround toroidal cavity, described
The axial cross section of toroidal cavity is the second aerofoil profile, the leading edge rounding off of second aerofoil profile, the rear shape of second aerofoil profile
At tip, the air outlet is also located at the rear of second aerofoil profile.
6. as claimed in claim 5 without leaf cooling fan, which is characterized in that the axial cross section of the annular barrier wall is third
The rear of aerofoil profile, the leading edge rounding off of the third aerofoil profile, the third aerofoil profile forms tip, and the air outlet is also located at institute
State the rear of third aerofoil profile.
7. as claimed in claim 4 without leaf cooling fan, which is characterized in that the length of the upper camber line of first aerofoil profile is greater than
The length of the lower camber line of first aerofoil profile；The upper camber line forms the inner peripheral surface of the wind pipe, and the lower camber line is formed
The outer peripheral surface of the wind pipe.
8. as claimed in claim 3 without leaf cooling fan, which is characterized in that the wind pipe further includes deflector, described
Deflector is arranged between the outer wall and the annular barrier wall, is fixedly connected with the outer wall and the annular barrier wall, institute
Deflector is stated for the gas flow guiding in the first annular cavity will to be in the second toroidal cavity.
9. as described in claim 1 without leaf cooling fan, which is characterized in that further include air-intake device, the air-intake device connects
Lead to the first annular cavity, for blowing to the first annular cavity.
10. a kind of engine system, which is characterized in that including the described in any item no leaf cooling fans of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064003.7A CN108119416B (en) | 2016-11-28 | 2016-11-28 | Without leaf cooling fan and engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064003.7A CN108119416B (en) | 2016-11-28 | 2016-11-28 | Without leaf cooling fan and engine system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108119416A CN108119416A (en) | 2018-06-05 |
| CN108119416B true CN108119416B (en) | 2019-04-19 |
Family
ID=62224981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611064003.7A Active CN108119416B (en) | 2016-11-28 | 2016-11-28 | Without leaf cooling fan and engine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119416B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112460044B (en) * | 2019-09-09 | 2022-09-16 | 河南森源电气股份有限公司 | Centrifugal fan module, airflow pressurization injection module and fan module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032223A (en) * | 2010-12-28 | 2011-04-27 | 任文华 | Bladeless fan device |
| CN202579362U (en) * | 2012-04-10 | 2012-12-05 | 杭州亿脑智能科技有限公司 | Bladeless fan |
| CN203297168U (en) * | 2013-04-22 | 2013-11-20 | 东莞市旭尔美电器科技有限公司 | Air-out device of bladeless fan |
| CN203476847U (en) * | 2013-08-12 | 2014-03-12 | 浙江高越工业设计有限公司 | Nozzle of bladeless fan and bladeless fan |
| GB2534656A (en) * | 2014-11-20 | 2016-08-03 | Ove Arup Partnership Ltd | Air mass induction device |
-
2016
- 2016-11-28 CN CN201611064003.7A patent/CN108119416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032223A (en) * | 2010-12-28 | 2011-04-27 | 任文华 | Bladeless fan device |
| CN202579362U (en) * | 2012-04-10 | 2012-12-05 | 杭州亿脑智能科技有限公司 | Bladeless fan |
| CN203297168U (en) * | 2013-04-22 | 2013-11-20 | 东莞市旭尔美电器科技有限公司 | Air-out device of bladeless fan |
| CN203476847U (en) * | 2013-08-12 | 2014-03-12 | 浙江高越工业设计有限公司 | Nozzle of bladeless fan and bladeless fan |
| GB2534656A (en) * | 2014-11-20 | 2016-08-03 | Ove Arup Partnership Ltd | Air mass induction device |
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| CN108119416A (en) | 2018-06-05 |
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