CN1207492A - Cooling device for water-cooled IC engine - Google Patents
Cooling device for water-cooled IC engine Download PDFInfo
- Publication number
- CN1207492A CN1207492A CN 98118004 CN98118004A CN1207492A CN 1207492 A CN1207492 A CN 1207492A CN 98118004 CN98118004 CN 98118004 CN 98118004 A CN98118004 A CN 98118004A CN 1207492 A CN1207492 A CN 1207492A
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- Prior art keywords
- cooling water
- water
- fin
- cooled engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
This cooling device for a water cooling type internal combustion engine includes cooling water conduits 34, whose both ends are opened and which lead cooling water to the horizontal direction, and a pair of tanks 31, 32, which are mounted on the end of the cooling water conduits 34 and are mutually communicatable through the cooling water conduits 34, and has radiating fins 33, whose heat radiation surfaces face vertically crossing the cooling water conduits 34 in the longitudinal direction, are fitted to the cooling water conduits 34.
Description
The present invention relates to the less water-cooled engine of capacity, particularly relate to the cooling device of the water-cooled engine that is equipped on dillies such as motor bike.
Existing cooling device is commonly referred to as radiator, is used to cool off the interior cooling water that flows of water-cooled engine that motor bike carries, and its structure has been recorded in real 47 No. 77 patent gazettes of clear 59-13 of opening.
In above-mentioned cooling device, set a pair of water tank up and down, the two ends of vertically opposite cooling water pipe are inserted into respectively in the hole and the hole on the water tank roof of below on the diapire of this top water tank, a pair of up and down water tank is by connection that this cooling water pipe supports, tabular fin along the horizontal plane setting passes above-mentioned cooling water pipe, multi-disc is arranged and is provided with along the vertical direction separated by a distancely, because the wind of the fore-and-aft direction that comes that takes up that travels of vehicle, flow through between the multi-disc tabular fin, utilize this wind that travels and produce, by this tabular fin, the cooling water in the cooling water pipe is cooled off.
Open in the cooling device of being put down in writing on the clear 59-134777 communique in fact, if with this cooling device miniaturization, allow the heat radiation load of per unit surface area of fin increase, so under common transport condition, mobile to the wind that travels of after-blow in the past along the upper and lower surface of tabular fin, utilize this tabular fin two sides heat radiation, cooling water in the cooling water pipe that joins with this tabular fin is just cooled off fully, but, if summer, if run into traffic jam, to run at a low speed repeatedly, during parking, external air so between the tabular fin, with under the state delay that is heated to form high temperature, external air and the heat exchange between the cooling water in the cooling water pipe can not be carried out smoothly in the space between above-mentioned fin, and the cooling capacity of cooling device descends significantly.
The present invention relates to overcome the improvement of cooling device of the water-cooled engine of above-mentioned difficult point, it is characterized in that, has both ends open, make cooling water along continuous straight runs cooling water pipe that flows and the end that is installed in above-mentioned cooling water pipe, and the 1 pair of water tank that is interconnected by cooling water pipe, radiating surface is installed on the above-mentioned cooling water pipe towards the fin of the above-below direction that the length direction with above-mentioned cooling water pipe intersects.
According to the present invention program's 1 described formation, even the cooling air stream of the horizontal direction that cooling fan and travelling is produced reduces or does not have, air between most fin also can rise along the fin towards the above-below direction that intersects with above-mentioned cooling water pipe length direction, utilize this free convection, above-mentioned fin dispels the heat, and carry out heat exchange between cooling water in the cooling water pipe that this fin joins and the surrounding air, also just can avoid the decline significantly of the cooling capacity of cooling device.
In addition, in the invention that scheme 1 is put down in writing,, also can keep cooling capacity,, also can reduce cost so not necessarily need cooling fan, both can make the cooling device integral miniaturization because even without the pressure cooling air that cooling fan produced.
According to the present invention program's 2 described formations, the following side space of the fin monomer that exposes on the lower edge of above-mentioned multilayer fin monomer and the upper end-face edge and either party or the other side of superjacent air space, and be clipped in the cross-ventilation between the space of the vertical direction between the above-mentioned multilayer fin monomer, can promote the free convection between the above-mentioned multilayer fin monomer, cooling water and the heat exchange between the surrounding air in the above-mentioned like this cooling water pipe can be carried out smoothly, can improve the cooling capacity of cooling device.
According to the present invention program's 3 described formations, the a pair of water tank of both sides is fixedly attached to the cylinder position of internal combustion engine, when can improve resistance to vibration, also make the cylinder of above-mentioned water tank near internal combustion engine, shortened the pipe arrangement that connects both, the flow resistance of cooling water circulation is reduced, alleviate the load of cooling water pump.
According to the present invention program's 4 described formations, can directly be fixedly mounted in above-mentioned water tank on the internal combustion engine, can further improve the resistance to vibration of cooling device, simultaneously, also can save the flexible pipe of the cooling water path that connects above-mentioned water tank and internal combustion engine, can prevent to leak and reduce cost, and can scheme to realize the miniaturization of whole internal-combustion engine.
According to the present invention program's 5 described formations, even producing and be delivered to the surrounding air of the heat heating of outer surface at the cylinder position of internal combustion engine, quilt rises, also can avoid because this adds the cooling capacity reduction that hot-air causes above-mentioned cooling device.
Fig. 1 implements the approximate three-dimensional map of the present invention program 1 to an embodiment form of scheme 4.Fig. 2 is the right side view of Fig. 1.Fig. 3 is the profile view that III-the III line is decided what is right and what is wrong along Fig. 2.Fig. 4 is the view of the IV direction of arrow of Fig. 2, is the front view that dissects a part.Fig. 5 is the left side view that dissects a part.Fig. 6 implements the approximate three-dimensional map of the present invention program 1 to the embodiment form of scheme 3 and scheme 5.
Describe to Fig. 1 of 4 inventions of being put down in writing to cooling device shown in Figure 5 implementing the present invention program 1 below.
Fig. 1 is the approximate three-dimensional map of expression the invention process form, and the single inflator formula water-cooled engine 1 of overhead valve formula 4 stroke cycle (being commonly referred to 4 circulations) is equipped in the middle of the front and back two-wheeled on the equipment of small motor bicycle of not expressing among the figure.
Water-cooled engine 1 is made up of the crank box 2,3 of dividing right and left and cylinder block 4, cylinder cover 5 and cylinder-head cover 6, front end at crank box 2,3 is being provided with cylinder block 4, the central axis approximate horizontal ground of the casing bore 7 of this cylinder block 4 is towards the place ahead, in the front of cylinder block 4 cylinder cover 5 and cylinder-head cover 6 are being set in proper order, these crank boxs 2,3, cylinder block 4, cylinder cover 5 and cylinder-head cover 6 interconnect and are integral.
As shown in Figure 3, piston 8 is inlaid in the casing bore 7 slidably, simultaneously, the crank axle 9 rotatable earth's axis are propped up on left and right sides crank box 2,3, on this piston 8 and crank axle 9, the two ends of connecting rod 12 are being coupling rotationally by piston pin 10 and crank-pin 11, and during piston 8 back and forth movements, crank axle 9 is driven sails rotation.
On cylinder cover 5, form the air inlet 14 and the exhaust outlet 15 of the combustion chamber 13 that is communicated with casing bore 7 tops, but the intake valve 16 and the air bleeding valve 17 of free switch are being set respectively on this air inlet 14 and exhaust outlet 15.
Adjacent with the top of intake valve 16 and air bleeding valve 17, disposing camshaft 18, this camshaft 18 props up between cylinder cover 5 and camshaft stand 20 by bearing 19 earth's axis free to rotate, and is being held.Driven sprocket 21 is embedded on the left end wide diameter portion 18a of this camshaft 18 by whole, and the drive sprocket 22 that becomes one of crank axle 9 and driven sprocket 21 between setting up ring chain, camshaft 18 is driven with half speed of crank axle 9 sails rotation, when above-mentioned intake valve 16 and air bleeding valve 17 rotate two circles at crank axle 9, be driven each switch respectively once.
As Fig. 2, Fig. 4 and shown in Figure 5, be configured in the top of cylinder block as the radiator 30 of the cooling device of cooling water cooled internal combustion engine 1, this radiator 30 be by the cooling water tank 31,32 of the left and right sides (opposite about in Fig. 4) and the tabular fin 33 that disposes abreast towards the car body fore-and-aft direction and along the vertical plane multi-disc with along the horizontal direction break-through cooling water tank 31,32 of overall width in opposite directions inwall and the rounded cooling water pipe 34 of section of fin 33 is constituted (above-mentioned cooling water pipe above-below direction becomes 3 row, fore-and-aft direction to become 2 row or 3 disposing with being listed as).On the bottom surface 31a of this cold ground water tank 31,32 (as shown in Figure 5, do not express in the ground plan of cooling water tank 32) formation cooling water gateway 35, be provided with bolt hole 36a (not expressing in the bolt hole pattern of ring flange 37) on the ring flange 36,37 that the bottom with this cooling water tank 31,32 fuses, joint sleeve 38 is entrenched in downwards on the above-mentioned cooling water gateway 35 highlightedly.In addition at the top of cooling water tank 31, chimeric the cap 39 that can freely set up or pull up.
As shown in Figure 3, on cylinder block 4, support sector's 40,41 integral body of radiator two side directions to the left and right are being provided with highlightedly.In the cooling water path 42,43 of the support sector 40,41 that is arranged at this radiator, the cooling water path 43 on right side is communicated in the cylindric cooling water sleeve 44 that is trapped among combustion chamber 13 peripheries, also be provided with the cooling water sleeve 45 that the openend with cooling water sleeve 44 matches on cylinder cover 5, these cooling water sleeves 44,45 have inwardly formed the narrower shape of cross section leading section from the faying face of cylinder block 4 and cylinder cover 5.
The central part of the left end wide diameter portion 18a of camshaft 18 is removed a part from end face and is formed recess 18b, on the inner peripheral surface of this recess 18b, a plurality of alnico magnets 24 are equally spaced setting around peripheral direction.
The cooling water pump 50 that is driven by camshaft 18 is made of pump case 51, pump cover 52 and turbine 54, and this turbine 54 is positioned at the rotor incorporating section 51a of this pump case 51, props up on pump case 51 and pump cover 52 by turning cylinder 53 earth's axis free to rotate.On the outer peripheral face of the axial region 54a of this turbine 54, rotor incorporating section 51a by pump case 51, the relative permanent magnet 55 of permanent magnet 24 of a plurality of and camshaft 18 integrally is being set along peripheral direction, the turbine 54 of cooling water pump 50, be combined on the camshaft 18 by magnetic force by permanent magnet 55,24, corresponding to the rotation of camshaft 18, turbine 54 is driven.
As shown in Figure 5, the suction portion 56 of cooling water pump 50 is communicated with by the lower opening 42a of communicating pipe 46 with the cooling water path 42 of left side radiator support sector 40, as shown in Figure 3, the portion that spues 57 of cooling water pump 50 is communicated with the path 58 that spues of pump cover 52, the two ends of communicating pipe 61 water-tightly are entrenched in respectively on the access 60 of the access 59 of the pump case 51 that is communicated in the above-mentioned path 58 that spues and the cooling water sleeve 45 that is communicated in cylinder cover 5, cooling water in the left side water tank 31 of radiator 30 is by the cooling water path 42 of left side radiator support sector 40, communicating pipe 46 and suction portion 56 are inhaled in the cooling water pump 50, utilize cooling water after turbine 54 pressurization of cooling water pump 50 from the path 58 that spues by access 59, communicating pipe 61 and access 60 are sent to cooling water sleeve 45, cooling water sleeve 44.
As shown in Figure 3, the idler sprockets 25 that is meshed with ring chain 23 is embedded in the periphery of communicating pipe 61 free to rotately, simultaneously, idler sprockets 27 is positioned at than idler sprockets 25 more near the position of crank axle 9, be coupling on cylinder block 4 by pin 26, as shown in Figure 5, idler sprockets 28,29 is as being coupling near crank axle 9 from holding ring chain 23 up and down under the arm.
Its structure of the represented example of Fig. 1 to Fig. 5 as mentioned above, so water-cooled engine 1 is in operating condition, running corresponding to water-cooled engine 1, when the turbine 54 that is combined in the cooling water pump 50 on the camshaft 18 of rotation by magnetic force is driven, cooling water in the left side cooling water tank 31 that is cooled off by radiator 30 from the cooling water gateway 35 by joint sleeve 38, the be cooled suction portion 56 of water pump 50 of the cooling water path 42 of radiator support sector 40 and path pipe 46 sucks, after passing through turbine 54 pressurizations of cooling water pump 50, through the path 58 that spuing by the portion that spues 57 from cooling water pump 50, access 59, communicating pipe 61 and access 60 are delivered to cooling water sleeve 45,44 places.Cooling water in this cooling water sleeve 45,44 is sent in the cooling water tank 32 on right side from the cooling water path 43 of the radiator support sector 41 on right side, flow back in the cooling water tank 31 of left side by cooling water pipe 34, and cooling water circulates in cooling water system.
So, when not shown motor bike travels, the wind that travels that blows to the rear from the place ahead is by between the fin 33 of radiator 30, and the fin 33 of the cooling water heating of flowing in the water pipe 34 that is cooled and be heated utilizes and thisly travels wind and obtain heat radiation.By the heat radiation of this fin 33, the cooling water in the cooling water pipe 34 just is cooled.
But, if motor bike stops, perhaps travel with the speed at the bottom of the utmost point, the wind that travels that does not come from the place ahead between the fin 33 of radiator 30 passes through so, but the air between the fin 33, on this fin 33 and cooling water pipe 34, be heated and rise, because the barrier that does not hinder ascending air up and down at fin 33 exists, so the free convection that adds hot-air between the fin 33 can be carried out smoothly, the heat radiation of fin 33 becomes possibility, just can avoid water-cooled engine 1 overheated.
By the free convection between the fin 33, the heat radiation of fin 33 becomes possibility, so not necessarily need cooling fan, might reduce cost.
Because cooling water pipe 34 is barrel surface, thus no matter be the wind that travels, still, can not produce excessive impedance for upward convection current from the below to blowing from the place ahead, so no matter in motion or cooling performance can both keep high levels when stopping.
Because left and right sides cooling water tank 31,32, ring flange 36 is passed in utilization, 37 and the bolt 47 that is screwed in the radiator support sector 40 be fixedly mounted on the cylinder block 4, so, can avoid the fitting portion of cooling water tank 31,32 and cooling water pipe 34 to be subjected to excessive power effect, the durability of radiator 30 is good.
And, because the cooling water tank 31,32 of radiator 30 is directly installed on the cylinder block 4, so except communicating pipe 46, outside 61, do not need to resemble the connection material the cooling water flexible pipe, reduced the part number, reduced the place that leaks yet, can reduce cost, improve water-stop, especially reduce the resistance of cooling water path, can realize the miniaturization of cooling water pump 50 because of the shortening of cooling water channel.
Because cylinder block 4 is configured in the below of radiator 30, so the infringement of the slungshot that is taken up when can not travelled by vehicle by cylinder block 4 protection radiators 30.
Because configuration communicating pipe 61 on the space between the ring chain 23, face the cooling water pump 50 that is connected to camshaft 18 and the cooling water sleeve 45 of cylinder cover 5 so can connect with beeline, can further shorten the flow path length of cooling water system.
Because with axle the material of communicating pipe 61, so can save the material of an axle idler sprockets 27 as idler sprockets 27.
At Fig. 1 to the embodiment shown in Figure 5, cylinder block 4, cylinder cover 5, cylinder-head cover 6 are forwards lied down, the central axis of casing bore 7 is towards the place ahead, but also can be as shown in Figure 6, make cylinder block 4, cylinder cover 5, cylinder-head cover 6 upright upward, the central axis of casing bore 7 is vertically towards the top, and radiator 30 is leaned against the left side of cylinder block 4, is installed on the crank box 2 in left side.
The example of Fig. 6 is represented is the invention that claim 1, claim 2 and the claim 5 of this patent put down in writing.
Even the example of Fig. 6; the thing that does not also stop the wind that travels in the front and back of radiator 30; and the thing that above radiator 30, does not also stop ascending air; wind and ascending air can flow between fin 33 so travel; fin 33 is dispelled the heat; and because can utilize the crank box 2 that is positioned at radiator below to protect radiator 30, thus can obtain with Fig. 1 to the same effect of example shown in Figure 5.
Claims (5)
1. the cooling device of a water-cooled engine, it is characterized in that, the cooling water pipe that has both ends open, the cooling water along continuous straight runs is flowed, with a pair of water tank that is installed in above-mentioned cooling water pipe end and is interconnected by this cooling water pipe, radiating surface is installed on the above-mentioned cooling water pipe towards the fin of the above-below direction that intersects with above-mentioned cooling water pipe length direction.
2. the cooling device of the water-cooled engine of putting down in writing as claim 1, it is characterized in that, in above-mentioned fin, above-mentioned cooling water pipe break-through is on stacked mutually fin monomer, and the lower edge of this each fin monomer and the either or both of upper end-face edge expose at the following side space of this fin monomer and the either or both of superjacent air space.
3. the water-cooled engine of putting down in writing as claim 1 or claim 2 is characterized in that, roughly above the cylinder of the water-cooled engine of horizontal direction, and is disposing above-mentioned cooling device between this cylinder at cylinder axis with having certain intervals.
4. the water-cooled engine of putting down in writing as claim 3 is characterized in that, below above-mentioned water tank, is integrally formed into the flange surface at the place, cooling water gateway that is arranged at water-cooled engine.
5. the water-cooled engine of putting down in writing as claim 1 or claim 2 is characterized in that, roughly towards the side of the cylinder of the water-cooled engine of vertical direction, is disposing above-mentioned cooling device at cylinder axis.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211648/97 | 1997-08-06 | ||
| JP211648/1997 | 1997-08-06 | ||
| JP9211648A JPH1150844A (en) | 1997-08-06 | 1997-08-06 | Cooling device for water cooling type internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1207492A true CN1207492A (en) | 1999-02-10 |
| CN1149381C CN1149381C (en) | 2004-05-12 |
Family
ID=16609277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981180043A Expired - Fee Related CN1149381C (en) | 1997-08-06 | 1998-08-05 | Cooling device for water-cooled IC engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH1150844A (en) |
| CN (1) | CN1149381C (en) |
| ID (1) | ID20682A (en) |
| TW (1) | TW357227B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925066A (en) * | 2014-04-17 | 2014-07-16 | 泰州市永林机械厂 | Heat exchanger for yacht engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1927737A1 (en) | 2006-12-01 | 2008-06-04 | Kwang Yang Motor Co., Ltd. | Air-guiding device for a motorcycle |
| US8539929B2 (en) | 2009-11-18 | 2013-09-24 | Harley-Davidson Motor Company | Cylinder head cooling system |
-
1997
- 1997-08-06 JP JP9211648A patent/JPH1150844A/en active Pending
-
1998
- 1998-06-29 TW TW087110476A patent/TW357227B/en active
- 1998-08-05 CN CNB981180043A patent/CN1149381C/en not_active Expired - Fee Related
- 1998-08-06 ID IDP981097A patent/ID20682A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925066A (en) * | 2014-04-17 | 2014-07-16 | 泰州市永林机械厂 | Heat exchanger for yacht engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1150844A (en) | 1999-02-23 |
| CN1149381C (en) | 2004-05-12 |
| ID20682A (en) | 1999-02-11 |
| TW357227B (en) | 1999-05-01 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |