CN100462529C - Cooling device with cooling fan - Google Patents
Cooling device with cooling fan Download PDFInfo
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- CN100462529C CN100462529C CNB2005100680665A CN200510068066A CN100462529C CN 100462529 C CN100462529 C CN 100462529C CN B2005100680665 A CNB2005100680665 A CN B2005100680665A CN 200510068066 A CN200510068066 A CN 200510068066A CN 100462529 C CN100462529 C CN 100462529C
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Abstract
To provide a cooling device decreasing turbulence of airflow of cooling air to increase the volume of the cooling air, and thereby improving the cooling performance of a radiator and reducing drive energy of a cooling fan.The cooling device of water cooled internal combustion engine E comprises: the radiator having a radiator core in which cooling water radiating heat into the cooling air flows; the cooling fan disposed downstream the radiator core to face the radiator core in a rotation center direction A3; and straightening plates disposed between the radiator core and the cooling fan in the rotation center line direction A3. The straightening plates guide the cooling air just after passing through the radiator core along the rotation center line direction A3 up to just in front of a rotation track of an upstream edges of blades of the cooling fan. Each of the straightening plates is disposed so that, in immediate downstream of a downstream end of a heat transmission tube of the radiator core, the upstream end is opposite to and is arranged along the downstream edge in the rotation center line direction A3.
Description
Technical field
The present invention relates to a kind of cooling unit, it has radiator movement and inhalation type cooling fan, and wherein, the fluid that dispels the heat to cooling air flows through the radiator movement, the inhalation type cooling fan produces this cooling air, and this cooling unit is the cooling unit that for example is used for water-cooled engine.
Background technique
A kind of radiator by for example Japanese patent gazette spy open 2002-129960 number disclosed, this radiator has the radiator movement, this radiator disposes centrifugal cooling fan in the leeward of radiator movement, and the cooling water that the cooling air that produces to cooling fan dispels the heat flows through above-mentioned radiator movement.In this radiator, cooling air is imported into by venetian blind under the action of cooling fan and by the radiator movement, comes the cooling water of cool stream through the radiator movement with this.Cooling air by the radiator movement is through the suction of cooling fan, and the exhaust port from the support housing that is located at radiator is discharged.
Herein, in above-mentioned prior art, after by the radiator movement, be in the cooling air of cooling fan weather, existence is along the rotation centerline direction air-flow (being " turbulent flow " to call this air-flow in the following text) in addition of cooling fan, it comprises the rotating part that the cooling fan that rotated influences, and the air draft that is subjected to radially outwards to flow out influences and radially outside part etc., therefore, suck swimmingly by the fan that can't be cooled of the cooling air behind the radiator movement, its result in order to ensure the air quantity of the cooling air that passes through the radiator movement, considers the turbulent flow of said flow, must strengthen the capacity of cooling fan, thereby increase the driving energy consumption of cooling fan.
Summary of the invention
The present invention be directed to this kind situation makes, the purpose of technological scheme 1～5 described invention provides a kind of cooling unit, it can improve the cooling performance and the energy consumption that reduces cooling fan of radiator by turbulent flow that reduces cooling air and the air quantity that increases cooling air.In addition, the purpose of technological scheme 2,3 described inventions is to suppress the increase of the flowing resistance between radiator and the Air Blast fan.
According to this scheme, by the cooling air behind the radiator movement just by the radiator movement after before be sucked up to cooling fan, rectification element has reduced the turbulent flow in the cooling air; Because cooling air increases along the ratio that the rotation centerline direction flows into cooling fan, therefore, the air quantity of cooling fan suction increases, and increases from the air quantity of the cooling air of the weather side inflow radiator movement of radiator, thereby has promoted to dispel the heat to cooling air from the fluid in the radiator movement.
The possess skills feature of cooling unit of scheme 1 of technological scheme 2 of the present invention, and, above-mentioned radiator movement has several heat-exchange tubes that above-mentioned fluid is flowed through, above-mentioned rectification element has the several piece current plate, above-mentioned each current plate disposes as follows, that is, in the positive leeward of the leeward edge of above-mentioned heat-exchange tube, the windward edge of above-mentioned each current plate disposes in opposite directions with above-mentioned leeward edge on above-mentioned rotation centerline direction and aligns with the leeward edge.
According to this scheme, the several piece current plate respectively with heat-exchange tube at a distance of fine clearance or the mode that contacts with heat-exchange tube, roughly configuration continuously of leeward edge along heat-exchange tube, so can not make the windward edge of current plate hinder the cooling air that passes through the radiator movement, therefore, suppressed the increase of flowing resistance
The possess skills feature of cooling unit of scheme 1 of technological scheme 3 of the present invention, and, above-mentioned radiator movement has several heat-exchange tubes that above-mentioned fluid is flowed through, above-mentioned rectification element has the several piece current plate, above-mentioned each current plate disposes as follows, that is, above-mentioned each current plate all roughly all is housed inside in the view field of the above-mentioned heat-exchange tube on above-mentioned rotation centerline direction with it.
According to this scheme,, therefore, suppressed to reduce the increase of the flowing resistance that is caused because of current plate causes vent area because the polylith current plate disposes in the mode in the view field that is contained in heat-exchange tube respectively.
The possess skills feature of cooling unit of scheme 1 of technological scheme 4 of the present invention, and, above-mentioned radiator movement has several heat-exchange tubes, the orientation in accordance with regulations of these several heat-exchange tubes is arranged, be used for for above-mentioned fluid flow, above-mentioned rectification element has the several piece current plate, and from above-mentioned rotation centerline direction, above-mentioned each current plate is extending on the direction vertical with above-mentioned orientation or on the roughly full duration of the radiator movement in the above-mentioned orientation.
According to this scheme, cooling air by the radiator movement, obtaining the rectification of several piece current plate on the direction vertical with the current plate orientation or on the roughly full duration of the radiator movement in the current plate orientation, therefore, the turbulent flow that is drawn to the cooling air of cooling fan further reduces.
The possess skills feature of cooling unit of scheme 1 of technological scheme 5 of the present invention, and, from above-mentioned rotation centerline direction, above-mentioned radiator movement has the 1st width and the 2nd width, the 1 1st width is the width on the 1st direction vertical with above-mentioned rotation centerline direction, the 2nd width is to be on the 2nd direction vertical with above-mentioned the 1st direction and than the little width of above-mentioned the 1st width, the external diameter of above-mentioned centrifugal cooling fan is littler than above-mentioned the 1st width, and it is bigger than above-mentioned the 2nd width, above-mentioned rectification element has the several piece current plate, and above-mentioned each current plate is arranged to and above-mentioned the 2nd direction almost parallel.
According to this scheme, because cooling air is by radially outwards pushing of blade, therefore, the cooling air of cooling fan weather outwards blows out on the 1st direction, because the 1st width of radiator movement is greater than the external diameter of cooling fan, therefore, this phenomenon is subjected to the inhibition with the current plate of the 2nd direction almost parallel configuration, thereby reduced turbulent flow, like this, in the radiator of the radiator movement of configuration miniaturization, the ratio that flows into the cooling air of cooling fan along the rotation centerline direction improves on the 2nd direction, and the air quantity that sucks cooling fan increases.
According to technological scheme 1 described the present invention, can reach following effect.That is, the air quantity that flows through the cooling air of radiator movement increases, and has promoted that the fluid in the radiator movement dispels the heat to cooling air, and therefore, the cooling performance of radiator improves.In addition, owing to can guarantee therefore, can adopt the more cooling fan of small capacity, thereby can reduce the driving energy consumption of cooling fan for obtaining the required air quantity of the desired cooling performance of radiator.
According to technological scheme 2 described the present invention, owing to the increase of the flowing resistance that has suppressed to cause, so technological scheme 1 described effect of the present invention is further improved by current plate.
According to technological scheme 3 described the present invention, owing to the increase of the flowing resistance that has suppressed to cause, so technological scheme 1 described effect of the present invention is further improved by current plate.
According to technological scheme 4 described the present invention, owing to further reduced the turbulent flow that sucks the cooling air of cooling fan, therefore, technological scheme 1 described effect of the present invention is further improved.
According to technological scheme 5 described the present invention, owing on the 2nd direction, make the miniaturization of radiator movement as current plate parallel configuration direction, increased air quantity simultaneously, therefore, reached technological scheme 1 described effect of the present invention by the cooling air of radiator movement.
Description of drawings
Fig. 1 be the water-cooled engine expression embodiment of the present invention, that configuration cooling unit of the present invention is housed two-wheeled motor vehicle want portion's right side view.
Fig. 2 is that the plane with the rotation centerline of rotation centerline that comprises the I. C. engine crankshaft shown in Fig. 1 and transmission output shaft is the sectional view of principal plane, is the sectional view of radiator, cooling fan and rectification element in the plane on being parallel to the configuration direction.
Fig. 3 is radiator, guard shield and the rectification element figure shown in the III arrow among Fig. 2.
Figure when Fig. 4 is the IV part of seeing from radiator movement weather side along the rotation centerline direction Fig. 1.
Fig. 5 is the enlarged view of V part among Fig. 2.
Embodiment
Below, with reference to accompanying drawing 1 to Fig. 5 embodiments of the present invention are described.
Referring to Fig. 1 and Fig. 2, cooling unit of the present invention is configured in as on the water-cooled engine E in the pedal-type two-wheeled motor vehicle of vehicle.Single-cylinder engine E constitutes Power Component with transmission device T, and the latter is used for the transmission of power of internal-combustion engine E to the trailing wheel W as driving wheel.This Power Component is supported in 1 pair and is supported in portion's (being expressed as the 1e of the portion that is supported that forms on the cylinder 1 in Fig. 1), and can be that the center swings up and down with the pivot P that remains on the vehicle body frames F, this be integrally formed with the 1st housing parts 34a of the cylinder 1 of internal-combustion engine E and transmission device T respectively to the portion of being supported.
Internal-combustion engine E is an overhead camshaft type single-cylinder four-stroke internal-combustion engine, and it has internal combustion engine main body, and this internal combustion engine main body has cylinder 1, cylinder head 2 and crankcase 3, forms cylinder barrel 1a on the cylinder 1, and piston 4 cooperates and to-and-fro motion therein with this tube; Cylinder head 2 combines with an end of cylinder 1; Crankcase 3 combines with the other end of cylinder 1.Bent axle 6 is connected with piston 4 by connecting rod 5, and is configured in the crankshaft room 7 by the sensing of the left and right directions of above-mentioned two-wheeled motor vehicle, and this crankshaft room 7 is formed by cylinder 1 and crankcase 3; Simultaneously, bent axle 6 is bearing on cylinder 1 and the crankcase 3 by a pair of main bearing 8 so that the mode of rotation centerline L1 to be arranged on the plane of the junction plane that comprises cylinder 1 and crankcase 3, and can rotate relative to cylinder 1 and crankcase 3.Cylinder 1 is in be inclined upwardly forward and a little mode of extending and being installed on the vehicle frame F of vehicle body under the acclivitous a little state of horizontal plane relatively of cylinder-bore axis L2.
Extend in the Transmission Room 9 of epicyclic gear 31 to the 1st shaft end 6a of the outstanding bent axle 6 in the left side side of bent axle 6 from crankshaft room 7.On the other hand, adorn in the subsidiary engine containing room 10 of alternator 37 and cooling fan 51 in the 2nd shaft end 6b of the outstanding bent axle 6 in the right side side of bent axle 6 extends to from crankshaft room 7.Subsidiary engine containing room 10 is formed by following part: tubular accommodation section 1b, and it is as the right side of cylinder 1 and crankcase 3; Case 54, it combines with this accommodation section 1b; Next door 11, it keeps the stator 37a of alternator 37.Next door 11 combines with cylinder 1 and crankcase 3, and with cylinder 1 and crankcase 3, forms containing room 12 between crankshaft room 7 and subsidiary engine containing room 10, and dress is used for the driving mechanism of drive cam shaft 20a and oil pump in this containing room 12.In addition, the 2nd shaft end 6b connects containing room 12 through subsidiary engine containing rooms 10.Have, so-called side refers to the side on the direction of the rotation centerline L1 of bent axle 6 again.
On cylinder head 2, be formed with: firing chamber 13, it is by constituting at the recess with cylinder barrel 1a relative position place; Suction port, its mixed gas that is used for forming, to pass through afterwards suction tude 15 in vaporizer 14 imports firing chamber 13; Relief opening, its combustion gas that are used in the spontaneous combustion chamber 13 in the future import outlet pipe 16 as exhaust gas; In addition, spark plug 17 is housed probeing into 13 places, firing chamber.Valve cage 19 is formed by cylinder head 2 gentle cylinder head covers 18, the latter is combined on this cylinder head 2 by bolt, valve gear 20 is used for making the intake valve of the above-mentioned suction port of switch and the exhaust valve of the above-mentioned relief opening of switch to do the opening and closing action, and in be loaded in this valve cage 19.Valve gear 20 is bearing on the cylinder head 2 and its rotation relatively, and has camshaft 20a.Camshaft 20a is driven by valve actuating mechanism 21, and with 1/2 rotational speed of the rotating speed of bent axle 6.Valve actuating mechanism 21 has: driving sprocket wheel 21a, and it combines with bent axle 6 and can rotate with its one; Driving sprocket wheel 21b, its combine with camshaft 20a and can with its unitary rotation; Belt chain 21c, it is around hanging on two driving sprocket wheel 21a, the 21b.In addition, be provided with intake cam and exhaust cam on camshaft 20a, the rocking arm that is used for by separately (is expressed as the rocking arm 20b of exhaust side among Fig. 2.) make the rotational synchronization of above-mentioned intake valve and exhaust valve and bent axle 6 and time point in accordance with regulations do the opening and closing action.
The pump driving mechanism is used for driving above-mentioned oil pump, and constitutes above-mentioned driving mechanism with valve event mechanism 21, and this pump driving mechanism has: actuation gear 22, and it is integrally formed with the member that forms valve actuating mechanism 21; Driven gear, it combines with the live axle of above-mentioned oil pump and one rotation with it.In addition, driving sprocket wheel 21a, chain 21c and said pump driving mechanism are loaded in the containing room 12 in all.
Referring to Fig. 2, transmission device T is configured in the left side side of internal-combustion engine E, and it has: as the belt type automatic transmission 31 of speed changer; Centrifugal starting clutch 32; Terminal speed reducer 33; And the transmission case 34 that forms Transmission Room 9, Transmission Room 9 epicyclic gears 31, starting clutch 32 and terminal speed reducer 33.
In starting clutch 32, in the clutch sheet 32a combine with the fixedly wheel body 31b2 of negative pulley wheel 31b also can with its unitary rotation, clutch outer plate 32b combine with output shaft 35 and can with its unitary rotation, clutch weight 32c can joltily be bearing on the interior sheet 32a of clutch, when the rotating speed of bent axle 6 reaches the regulation rotating speed that belongs in its minimum speed scope and this counterweight 32c and clutch outer plate 32b butt, this starting clutch 32 is in coupled condition, thus with the transmission of power of bent axle 6 to output shaft 35.
In addition, under the pressure-driven that firing chamber 13 internal combustion are produced, piston 4 reciprocating and driving bent axle 6 rotations, this rotation is via speed changer 31 speed changes and be passed to output shaft 35, then, be passed to axletree 36 from output shaft 35 via train of gearings again, trailing wheel W is driven in rotation under the dynamic action of bent axle 6.
Referring to Fig. 1 and Fig. 2, water jacket 23 formations comprise: cylinder side water jacket 23a, and it forms at cylinder 1 place in the mode of surrounding cylinder barrel 1a; Cylinder head side water jacket 23b, it is to surround firing chamber 13 and to form on cylinder head 2 with mode that cylinder side water jacket 23a is connected together, above-mentioned cooling unit is used for this water jacket 23 is carried out the water supply and the draining of cooling water, it has: water pump 41, and it is as being delivered to the pump of water jacket 23 with the cooling water pressurization and with it; Radiator 43 circulates therein as the cooling water from the fluid of water jacket 23; Cooling fan 51, it produces cooling air, with the cooling water heat radiation of the radiator 43 that promotes to flow through; Case 54 is in order to cover cap cooling fan 51; Rectification mechanism, it is used for to the cooling air rectification; Thermostat 70, it is used for connecting or close from radiator 43 to water pump 41 cooling water; Piping system, it comprises conduit 65a～65d and the joint of dredging cooling water.
The water pump 41 that is installed on the cylinder head 2 has: pump housing 41a, and it combines with cylinder head 2; Impeller 41b, it is bearing in pump housing 41a and goes up and can rotate to it, and is connected with camshaft 20a driving by the shaft joint 42 that the magetic indicator joint that adopts permanent magnet 42a constitutes; Case 41c, it combines and is formed into 41c1 of mouth of a river portion and water outlet 41c2 with pump housing 41a, and the former is formed into mouth of a river 41d, and the latter forms the mouth of a river.
Simultaneously referring to Fig. 3, radiator 43 has: go up water storage box 44, it is as the water inlet water tank that connects into mouth of a river conduit 65a, will flow through water jacket 23 and cylinder 1 and cylinder head 2 cooled high-temperature cooling waters imported radiator 43 from cylinder 1 of this water inlet conduit 65a; Radiator movement 46, it has many heat-exchange tubes 47, and the cooling water of last water storage box 44 will flow in it; Lower water tank 45, it is as the water outlet water tank, and the cooling water that will become low temperature in radiator movement 46 after heat radiation flows into and collects from each heat-exchange tube 47.
Each heat-exchange tube 47 extends up and down between last water storage box 44 and lower water tank 45, and at its entry end 47a and outlet end 47b place, combine with support plate 44a and support plate 45a water-stop respectively and by its supporting, the wall portion of water storage box 44 on the support plate 44a formation, support plate 45a constitutes the wall portion of lower water tank 45.In addition, several heat-exchange tubes 47 are (under this mode of execution state, consistent with the rotation centerline L1 of bent axle 6 with the rotation centerline L3 of cooling fan 51.) in vertical plane (below be referred to as " vertical plane "), orientation A1 in accordance with regulations is arranged in parallel with each other.In this embodiment, orientation A1 is from the direction A3 of rotation centerline L3 direction that see, parallel with the long limit of rectangular radiator movement 46.In addition, each heat-exchange tube 47 is made of pipe flat on orientation A1, and parallel with rotation centerline direction A3, simultaneously, is parallel to direction A2 vertical with orientation A1 on above-mentioned vertical plane.
In addition, in specification digest and claims scope, " weather " means that with " leeward " position of the cooling air of relevant cooling radiator movement 46 concerns, in addition, the qualifier of so-called " roughly " means: comprise the occasion of not having this qualifier, also comprise simultaneously, compare with the occasion of not having this qualifier, even this speech has been arranged, aspect action effect, there is not the extent and scope of special different-effect yet.
The wind path part 56 that case 54 forms between radiator movement 46 and the cooling fan 51, it has: holding part 54a, its side of being in the wind forms, and is used for keeping radiator 43; The cover portions 54b of tubular, it forms at leeward oral-lateral of holding part 54a, and when forming wind path part 56, and the diametric(al) outside mask of cooling fan 51 is covered; Holding part 54a and cover portions 54b are the single-piece member by the synthetic resin global formation.Be provided with the assembly department that it is installed on cylinder 1 and the crankcase 3 on the cover portions 54b, and from towards the part at rear up to part towards the below, the exhaust port 55 that formation is made of the opening of several slit-shaped, the opening of these several slit-shaped is roughly parallel to rotation centerline direction A3 with spaced form in a circumferential direction and forms.
Above-mentioned rectification mechanism formation comprises: weather side rectification element 60, and it has the cancellate current plate 60a of the weather that is configured in radiator movement 46; Middle rectification element 61, it is configured on the rotation centerline direction A3, and the wind path part 56 (referring to Fig. 2) between radiator movement 46 and cooling fan 51 is located.Two rectification elements 60,61 are the member that forms respectively, are all formed by synthetic resin.
Rectification element 60 (having omitted rectification element 60 among Fig. 1) has assembly department 60b, it is forming around the peripheral portion place of current plate 60a, is used for rectification element 60 is installed in that this current plate 60a disposes in opposite directions with radiator movement 46 on the direction of rotation centerline A3 in the holding part 54a.Current plate 60a will blow to the cooling air guiding of radiator movement 46 from the weather of radiator movement 46 along rotation centerline direction A3.
And then simultaneously referring to Fig. 4, Fig. 5, rectification element 61 is made of polylith current plate 62, is used for before the rotating locus S of windward edge 53u that the just cooling air by radiator movement 46 just is directed at the blade 53 of cooling fan 51 along rotation centerline direction A3.These current plates 62 dispose Face to face with radiator movement 46 and cooling fan 51 on rotation centerline direction A3.Herein, the width of radiator movement 46 on rotation centerline direction A3 is with the width d of radiating fin 48 on rotation centerline direction A3
F3About equally, in the present embodiment, itself and the width d of heat-exchange tube 47 on rotation centerline direction A3
T3About equally.
For this reason, each current plate 62 is made of rectangular flat board, and its two end part 62a, 62b are fixed on two support plate 44a, the 45a by the means of fixation of Bond etc. respectively, are set in the width d on the rotation centerline direction A3 as follows
R3, that is, and the leeward edge 47d contact of windward edge 62u and corresponding heat-exchange tube 47 or with its near forming gap configuration slightly, leeward edge 62d on rotation centerline direction A3 extremely near blade 53.In addition, each current plate 62 is the roughly overall with of the radiator movement 46 on the direction A2 vertical with orientation A1, promptly from rotation centerline direction A3, on the roughly overall with of the 2nd following width dc2 (referring to Fig. 3), extend, have and heat-exchange tube 47 length about equally.In addition, all current plate 62 disposes in the mode that is parallel to rotation centerline L3 on the direction identical with orientation A1.
Each current plate 62, its windward edge 62u is to align relatively and with it at rotation centerline direction A3 up and down wind edge 47d, be configured in the positive leeward of the leeward edge 47d of heat-exchange tube 47, and, each current plate 62 all disposes in the mode in the view field that roughly all is accommodated in the heat-exchange tube 47 on the rotation centerline direction A3, in other words, with from rotation centerline direction A3, itself and heat-exchange tube 47 overlapping modes dispose (referring to Fig. 4).For this reason, the width dr1 of each current plate 62 on orientation A1 should by set with the width dt1 mode about equally of heat-exchange tube 47 (in Fig. 4, for convenience of explanation for the purpose of, current plate 62 is by narrow slightly width means.)。In addition, current plate 62 parallel to each other is pressed and is disposed as the identical spacing of the spacing of configuration space on the orientation A1 of several heat-exchange tubes 47.
In addition, referring to Fig. 1 and Fig. 3, radiator movement 46 has: the 1st width dc1 (referring to Fig. 3), and it is on the 1st orientation A1 of the conduct direction vertical with rotation centerline direction A3; The 2nd width dc2 (referring to Fig. 3), it is on the orthogonal direction A2 as the 2nd direction, and it is littler than the 1st width dc1, the outer diameter D 1 (referring to Fig. 1) of cooling fan 51 is determined according to the circumcircle of blade 53, it is littler and bigger than the 2nd width dc2 than the 1st width dc1, and each current plate 62 is arranged to the almost parallel with orthogonal direction A2.
Width dr4 is the width of rectification element 61 on orientation A1, it depends on the configuration scope of whole current plates 62 on orientation A1, width dr4 sets according to the also big mode of inside diameter D 2 of the cooling fan 51 that decides than the inscribed circle by blade 53, thereby available current plate 62 prevents the adverse current of cooling air.
Referring to Fig. 1, Fig. 2, lower water tank 45 is communicated with water pump 41 via water outlet conduit 65b and thermostat 70, and this water outlet conduit 65b is connected the water outlet 45b of lower water tank 45 and the entry oral area 41c1 of water pump 41.This thermostat 70 is installed on the cover cap 41c and between lower water tank 45 and water inlet 41d, is used for cooling water is communicated with and shutoff.Have, water supply conduit 65c is connected with the water outlet 41c2 of water pump 41 again, and the cooling water that is used for discharging is supplied with water jacket 23a, and this water supply conduit 65c is connected with cylinder 1.In addition, by-pass conduit 65d is connected with thermostat 70, be used for the hot car of internal-combustion engine E, be thermostat 70 will be from lower water tank 45 to water pump the path of 41 cooling water when turn-offing, by-pass conduit 65d directly is directed at water inlet 41d with the cooling water of water jacket 23a without radiator 43.
Therefore, in above-mentioned cooling unit, is after the hot car of internal-combustion engine finishes at thermostat 70 with radiator 43 and water pump 41 connections, the flow through cooling water of two water jacket 23a, 23b, via water storage box 44 in the water inlet conduit 65a inflow, then, this cooling water is in the process of each heat-exchange tube 47 of flowing through from water jacket 23a, after the cooling through cooling air becomes low temperature, flow into lower water tank 45.The cooling water of lower water tank 45 is imported into water pump 41 via delivery channel 65b and thermostat 70.Cooling water by water pump 41 pressurized delivered is conducted to water jacket 23a via water supply conduit 65c, again from the water jacket 23a water jacket 23b that flows through, after the cylinder 1 that becomes high temperature because of ignition heat and cylinder head 2 cooled off, return radiator 43 from water jacket 23a through water inlet conduit 65a again.
Then, effect and the effect with regard to the mode of execution of above-mentioned formation illustrated.
When internal-combustion engine E moves, be equipped in cooling fan 51 and bent axle 6 unitary rotation on the above-mentioned cooling unit, the air suction with cooling fan 51 weathers discharges through exhaust port 55, make the outside air rectification element 61 of flowing through, produce the cooling air of inflow radiator 43.Cooling air is after cancellate current plate 62 is directed on the rotation centerline direction A3, by radiator movement 46.Then, in radiator movement 46, the high-temperature cooling water of the heat-exchange tube 47 of flowing through passes through heat-exchange tube 47 and radiating fin 48, under the cooling air thermolysis of low temperature, and water quench.
In addition, above-mentioned cooling unit has current plate 62, on rotation centerline direction A3, its configuration is between radiator movement 46 and cooling fan 51, current plate 62 will be just by the cooling air behind the radiator movement 46, along rotation centerline direction A3, be directed to anterior position near the rotary motion trace S of the windward edge 53u of the blade 53 of cooling fan 51, therefore, current plate 62 can make by the cooling air behind the radiator movement 46, from just by radiator movement 46 back to being delivered to before cooling fan 51 is sucked, turbulent flow in the cooling air is reduced, improve along rotation centerline direction A3 and the ratio that flows into the cooling air of cooling fan 51, therefore, the air quantity that sucks cooling fan 51 increases, increase thereby make, like this, promoted to dispel the heat to cooling air from the fluids in the radiator movement 46 from the air quantity of the cooling air of the weather side inflow radiator movement 46 of radiator 43, therefore, improved the cooling performance of radiator 43.In addition,, also can make cooling fan 51 diameter miniaturizations, reduce the length of blade 53 owing to guaranteed therefore, can adopt cooling fan 51 than small capacity for obtaining the required air quantity of cooling performance of radiator 43.In addition, owing to can reduce the driving energy consumption of cooling fan 51,, therefore, can improve the economic performance of internal-combustion engine E so can reduce the power loss of the internal-combustion engine E that drives cooling fan 51 actings.
In addition, each current plate 62 disposes as follows, promptly, its windward edge 62u is configured in the positive leeward of the leeward edge 47d of heat-exchange tube 47 in the mode of also aliging with it relatively at rotation centerline direction A3 up and down wind edge 47d, like this, be equipped in the current plate 62 on the rectification element 61, respectively with heat-exchange tube 47 at a distance of fine clearance, or the mode that contacts with heat-exchange tube 47, roughly configuration continuously of leeward edge 47d along heat-exchange tube 47, so can not make the windward edge 62u of current plate 62 hinder the cooling air that passes through radiator movement 46, therefore, suppress the increase of flowing resistance, consequently, the air quantity of the cooling air of inflow radiator movement 46 further increases, promoted to have improved the cooling performance of radiator 43 from the heat radiation of the fluid in the radiator movement 46 to cooling air.
By each current plate 62 is disposed in the mode in the view field that roughly is accommodated in the heat-exchange tube 47 on the rotation centerline direction A3 all, therefore, suppressed to cause the minimizing of vent area and the increase of the flowing resistance that causes by current plate 62, only this has a bit just further increased the air quantity of the cooling air of inflow radiator movement 46.
From rotation centerline direction A3, radiator movement 46 has the 1st width dc1 and the 2nd width dc2, and wherein, the 1st width dc1 is the width in the 1st orientation; The 2nd width dc2 is the width on the orthogonal direction A2 vertical with orientation A1, its width is littler than the 1st width dc1, outer diameter D 1 to the 1 width dc1 of cooling fan 51 is little, and it is bigger than the 2nd width dc2, each current plate 62 is arranged to the almost parallel with orthogonal direction A2, the 1st width dc1 of radiator movement 46 is greater than the outer diameter D 1 of cooling fan 51, therefore, the cooling air that radially outwards extrudes by blade 53 generations, cause the cooling air of cooling fan 51 weathers to blow at orientation A1 upper edge radially outward, this cooling air is subjected to the inhibition with the current plate 62 of orthogonal direction A2 almost parallel configuration, thereby reduced turbulent flow, like this, in the radiator 43 of the radiator movement 46 that disposes miniaturization along orthogonal direction A2, improve the ratio that flows into the cooling air of cooling fan 51 along rotation centerline direction A3, increased the air quantity that cooling fan 51 is sucked.Consequently, on the orthogonal direction A2 of current plate 62 parallel configuration, in 46 miniaturizations of radiator movement, the air quantity of the cooling air by radiator movement 46 increases, and the cooling performance of radiator 43 improves.
Below, the mode of execution that the above-mentioned mode of execution of just relevant change partly constitutes, the formation of just relevant change part is illustrated.
Be fixed on mode on the radiator 43 as current plate 62, can be fixed on support plate 44a, the 45b of each water storage box 44,45, also can be fixed on the heat-exchange tube 47, in addition, also can be fixed on the member beyond the radiator 43, for example be fixed on the case 54.Rectification element 61 can be made of several piece current plate 62 and 1 pair of support member, and this support member is integrated into each stream plate 62 for current plate 62 is bearing on two end part 62a, the 62b of each current plate 62.In this occasion, this support member is fixed on radiator 43 (for example support plate 44a, 45a) or the case 54.
In addition, the heat-exchange tube 47 that current plate 62 can be as follows forms with good conductor by heat is integrally formed, that is, current plate 62 is by constituting to the extending portion of cooling fan 51 along the heat-exchange tube 47 that extends in parallel with rotation centerline direction A3 from radiator movement 46.In this occasion, the surface area of heat-exchange tube 47 has increased current plate 62 parts, and therefore, the heat that the cooling water of the heat-exchange tube 47 of flowing through distributes to cooling air increases, and the cooling performance of the radiator that is made into integration with current plate improves.
In order to reduce flowing resistance, preferably make the width dr1 of each current plate 62 littler than the width dt1 of heat exchange pipe 47.In addition, though the flowing resistance than the rectification element in the above-mentioned mode of execution 61 increases, but also can be provided with in the following way, promptly, from rotation centerline direction A3, each current plate 62 promptly, is roughly extending on whole the 1st width dc1 parallel with orientation A1 and extend on the roughly full duration of the radiator movement 46 on the orientation A1.In addition, also can be by making several piece current plate 62 quantity of current plate 62 be equated with the quantity of heat-exchange tube 47 with the mode of all corresponding one by one setting of heat-exchange tube 47.In the above-described embodiment, several heat-exchange tubes 47 are arranged in 1 row on orientation A1, also it can be arranged in 2 row.
Cooling unit is also configurable being used for the vehicle internal-combustion engine of occasion in addition, also it can be configured on the internal-combustion engine machine in addition.In addition, cooling fan 51 also can be rotated by electrical motor driven.The fluid of heat-exchange tube 47 of flowing through also can be the liquid beyond the cooling water, and for example lubricant oil in addition, also can be gas.
Claims (5)
1. cooling unit, it has radiator and cooling fan, wherein, the radiator movement that the fluid of the oriented cooling air heat release of radiating appliance is flowed through, cooling fan is configured in the leeward of radiator movement, and on the rotation centerline direction with above-mentioned radiator movement in opposite directions, above-mentioned cooling fan is by the cooling air of suction by above-mentioned radiator movement, produce the cooling air that flows into above-mentioned radiator movement, it is characterized in that
Has rectification element, on the rotation centerline direction, it is configured between radiator movement and the cooling fan, above-mentioned rectification element will be just cooling air by the radiator movement just be directed to before the rotating locus of the windward edge of the blade of above-mentioned cooling fan along the rotation centerline direction.
2. cooling unit as claimed in claim 1, it is characterized in that, above-mentioned radiator movement has the several heat-exchange tubes that flow for above-mentioned fluid, above-mentioned rectification element has the several piece current plate, above-mentioned each current plate disposes as follows, that is, in the positive leeward of the leeward edge of above-mentioned heat-exchange tube, the windward edge of above-mentioned each current plate disposes in opposite directions with above-mentioned leeward edge on above-mentioned rotation centerline direction and aligns with it.
3. cooling unit as claimed in claim 1, it is characterized in that, above-mentioned radiator movement has several heat-exchange tubes that above-mentioned fluid is flowed through, above-mentioned rectification element has the several piece current plate, above-mentioned each current plate disposes as follows, that is, above-mentioned each current plate all is housed inside in the view field of the above-mentioned heat-exchange tube on above-mentioned rotation centerline direction with it.
4. cooling unit as claimed in claim 1, it is characterized in that, above-mentioned radiator movement has several heat-exchange tubes, the orientation in accordance with regulations of these several heat-exchange tubes is arranged, be used for for above-mentioned fluid flow, above-mentioned rectification element has the several piece current plate, and from above-mentioned rotation centerline direction, above-mentioned each current plate is extending on the direction vertical with above-mentioned orientation or on the full duration of the radiator movement in the above-mentioned orientation.
5. cooling unit as claimed in claim 1, it is characterized in that, from above-mentioned rotation centerline direction, above-mentioned radiator movement has the 1st width and the 2nd width, the 1st width is the width on the 1st direction vertical with above-mentioned rotation centerline direction, the 2nd width is to be on the 2nd direction vertical with above-mentioned the 1st direction and than the little width of above-mentioned the 1st width, the external diameter of above-mentioned centrifugal cooling fan is littler than above-mentioned the 1st width, and it is bigger than above-mentioned the 2nd width, above-mentioned rectification element has the several piece current plate, and above-mentioned each current plate is arranged to parallel with above-mentioned the 2nd direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004206951A JP4407925B2 (en) | 2004-07-14 | 2004-07-14 | Cooling device with cooling fan |
| JP206951/2004 | 2004-07-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1721667A CN1721667A (en) | 2006-01-18 |
| CN100462529C true CN100462529C (en) | 2009-02-18 |
Family
ID=35895829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100680665A Expired - Fee Related CN100462529C (en) | 2004-07-14 | 2005-05-16 | Cooling device with cooling fan |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4407925B2 (en) |
| CN (1) | CN100462529C (en) |
| TW (1) | TW200602551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI572775B (en) * | 2013-07-24 | 2017-03-01 | Kwang Yang Motor Co | Engine cooling channel configuration |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4953951B2 (en) * | 2007-07-12 | 2012-06-13 | 本田技研工業株式会社 | Radiator device for small vehicles |
| JP5898047B2 (en) * | 2012-10-26 | 2016-04-06 | 本田技研工業株式会社 | Water-cooled internal combustion engine for saddle-ride type vehicles |
| CN113931731B (en) * | 2021-09-26 | 2022-07-01 | 江苏力德热交换系统有限公司 | Automobile radiator based on integral frame type design |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604937A1 (en) * | 1992-12-28 | 1994-07-06 | Honda Giken Kogyo Kabushiki Kaisha | A shroud for an air-cooled internal combustion engine |
| JP2001329839A (en) * | 2000-05-19 | 2001-11-30 | Hitachi Constr Mach Co Ltd | Engine cooling device for construction machine |
| JP2002129960A (en) * | 2000-10-23 | 2002-05-09 | Honda Motor Co Ltd | Radiator for vehicle |
-
2004
- 2004-07-14 JP JP2004206951A patent/JP4407925B2/en not_active Expired - Fee Related
-
2005
- 2005-04-11 TW TW094111374A patent/TW200602551A/en not_active IP Right Cessation
- 2005-05-16 CN CNB2005100680665A patent/CN100462529C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604937A1 (en) * | 1992-12-28 | 1994-07-06 | Honda Giken Kogyo Kabushiki Kaisha | A shroud for an air-cooled internal combustion engine |
| JP2001329839A (en) * | 2000-05-19 | 2001-11-30 | Hitachi Constr Mach Co Ltd | Engine cooling device for construction machine |
| JP2002129960A (en) * | 2000-10-23 | 2002-05-09 | Honda Motor Co Ltd | Radiator for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI572775B (en) * | 2013-07-24 | 2017-03-01 | Kwang Yang Motor Co | Engine cooling channel configuration |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200602551A (en) | 2006-01-16 |
| TWI300818B (en) | 2008-09-11 |
| JP2006029155A (en) | 2006-02-02 |
| CN1721667A (en) | 2006-01-18 |
| JP4407925B2 (en) | 2010-02-03 |
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