CN101149013A - Plastic cooling water tank of single-cylinder water-cooled diesel engine and production method thereof - Google Patents
Plastic cooling water tank of single-cylinder water-cooled diesel engine and production method thereof Download PDFInfo
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- CN101149013A CN101149013A CNA2007101349240A CN200710134924A CN101149013A CN 101149013 A CN101149013 A CN 101149013A CN A2007101349240 A CNA2007101349240 A CN A2007101349240A CN 200710134924 A CN200710134924 A CN 200710134924A CN 101149013 A CN101149013 A CN 101149013A
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- water tank
- diesel engine
- upper body
- lower body
- water
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- 229920003023 plastic Polymers 0.000 title claims abstract description 24
- 239000004033 plastic Substances 0.000 title claims abstract description 24
- 239000000498 cooling water Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002828 fuel tank Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 7
- 230000002706 hydrostatic effect Effects 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 3
- 210000000476 body water Anatomy 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 20
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 239000002826 coolant Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000003064 anti-oxidating effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- MPDGHEJMBKOTSU-YKLVYJNSSA-N 18beta-glycyrrhetic acid Chemical compound C([C@H]1C2=CC(=O)[C@H]34)[C@@](C)(C(O)=O)CC[C@]1(C)CC[C@@]2(C)[C@]4(C)CC[C@@H]1[C@]3(C)CC[C@H](O)C1(C)C MPDGHEJMBKOTSU-YKLVYJNSSA-N 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a plastic cooling water tank of a single-cylinder water-cooled diesel engine, which consists of an upper body and a lower body, wherein the upper body and the lower body are both formed by molding composite plastic, and the upper body and the lower body are fixed into a whole in a water-tight manner in a welding mode; its preparing process is also disclosed. Through actual installation tests, the water tank can better meet the normal operation of a single-cylinder water-cooled diesel engine, the comprehensive performance indexes of high temperature resistance, vibration resistance, impact resistance, corrosion resistance, oxidation resistance, permeability resistance, mechanical strength and the like can well meet the requirements of a water tank of the diesel engine, the weight of the water tank is only 1/6 of that of a cast iron water tank, the impact resistance and vibration resistance fatigue indexes are far superior to those of the existing water tank products, and the surface temperature and the machine temperature of the water tank are lower than those of the cast iron water tank. The water tank made of engineering plastics and glass fiber composite die is successfully used for the single-cylinder water-cooled diesel engine, and the comprehensive effect is good.
Description
Technical field
The present invention relates to a kind of evaporative type water-cooled diesel engine, relate in particular to the cooling water tank of evaporative type single-cylinder water cooled diesel engine.
Background technique
Cooling water tank is extremely crucial parts on the evaporative type single-cylinder water cooled diesel engine, can the quality of its quality directly has influence on diesel engine proper functioning, the output power of diesel engine, oil consumption, the machine temperature, stable working, technical performances such as working life are all relevant with cooling, for a long time, people are in the design of diesel engine, make, in the using process, require the diesel coolant case must satisfy following technical specifications: to have good thermal diffusivity, high temperature resistant, vibration resistance, shock-resistant, preservation antioxidation, should be in light weight, enough intensity is arranged again, also impermeable.Therefore on the design and select material of diesel coolant case, the scheme that manufactures and designs that people generally acknowledge has following three kinds:
1. use the production route of aluminum alloy integral cast moulding, machining, external coating, the hydrostatic test;
2. the production route of cylinder iron integral cast moulding, machining, external coating, the hydrostatic test;
3. use the production route of steel plate split punching press, welding, external coating, the hydrostatic test.
Preferentially select 1. scheme for use, because aluminum alloy is perfect heat-dissipating not only, high temperature resistant, vibration resistance, shock-resistant, preservation antioxidation, in light weight, and be convenient to casting forming, yield rate is higher, is convenient to application paint, smooth in appearance, good mechanical property can satisfy the above-mentioned requirements of cooling water tank preferably, but its price is higher.In order further to reduce the cost of production of diesel engine, adapt to the market low-price competition, diesel engine manufacturing enterprise has generally abandoned the production of aluminum alloy water tank, uses cheap cast iron flush cistern instead.Because the production technology and the process equipment of cast iron flush cistern and aluminum alloy water tank are general, do not need to increase the just collinear production of energy of new process equipment, so people change the aluminum alloy blank into cast-iron blank on the basis of original production line; Facts have proved to change the aluminum alloy cooling water tank into cast iron flush cistern except having increased diesel engine weight, do not produce materially affect, therefore, have the single-cylinder water cooled diesel engine more than 90% all to adopt cast iron flush cistern at present for each performance of diesel engine.Though the integrated condition of steel plate water tank is better than cast iron flush cistern, but because its production technology and manufacturing mechanism and aluminum alloy water tank differ greatly, it is bigger to be processed into the disposable input of diesel coolant case with steel plate, and overall cost is also than cast iron flush cistern height, therefore steel plate diesel coolant case uses seldom, make the diesel coolant case with steel plate, though weight ratio cast iron flush cistern light (because wall is thin), but necessary split punching out, weld then,, or in use split all and can leak because of vibration causes weld seam to shake if welding is bad, thereby influence the diesel engine proper functioning, so this scheme is not promoted.By patent retrieval and domestic and international market information investigation, up to the present, also do not see the plastic cool water tank that is used on the evaporative type water-cooled diesel engine both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of single-cylinder water-cooling diesel engine plastic cooling water tank.
Another object of the present invention provides the production method of single-cylinder water-cooling diesel engine plastic cooling water tank.
A kind of evaporative type water-cooling diesel engine plastic cooling water tank, form by upper body, lower body, the upper body is made up of top board and wall body, be provided with the heat radiation water inlet of evagination in the upper end of top board, end face in relative fuel tank one side is provided with two connection boss that are used for fixing fuel tank, and one is the through hole boss, and one is the screw boss, the wall body sectional shape of upper body is corresponding with the wall body sectional shape of lower body, is provided with stiffening rib in last intracoelomic cavity; Described lower body is formed by housing, lining plank, eyenut composite die casted, be provided with body in the bottom of lower body and connect step, bottom side in relative fuel tank one side, be provided with the suspension ring lug, on body connection step surface, be provided with a round square hole that communicates with the body water channel and four attachment holes, described lining plank embedding is pressed in body and connects in the step, and the eyenut embedding is pressed in the suspension ring lug, is provided with stiffening rib at the inner chamber of lower body; Upper body and lower body are integral by the welding manner watertight fixed; The material of upper body and lower body is composite plastic.
Further, the screw boss at the fixed oil tank of water tank upper body is embedded with the fuel tank nut.
Described composite plastic master part comprises engineering plastics and glass fibre, and both weight percentages are respectively:
Engineering plastics 60%～99%; Glass fibre 1%～40%.
Optimum ratio is: engineering plastics 80%～95%; Glass fibre 5%～20%.
Described engineering plastics are nylon 66.
Production method of the present invention comprises the steps:
1. mixed oven dry takes by weighing engineering plastics and glass fibre by proportioning, mixes and dries;
2. molded, use phantom, following phantom die cast on injection machine, in press casting procedure, accurately put into lining plank or eyenut or fuel tank nut;
3. deburring overlap;
4. the fit welding of upper body and lower body;
5. polishing welding seams;
6. the hydrostatic test;
7. spray paint.
Because the diesel coolant case has adopted the compound of engineering plastics and glass fibre, and increased lining plank, the fuel tank nut, eyenut, the sealing welding is carried out behind the injection-compression molding respectively again in water tank branch upper body and lower body, pipeline system high-efficient homework processing in enormous quantities, the heat-resisting quantity of the plastic cistern of being produced, vibration resistance, impact resistance, preservation antioxidation, anti-permeability, integrated performance indexs such as mechanical strength can both satisfy the diesel engine radiator requirement well, 1/6 of the weight of a plastic cistern cast iron flush cistern, shock-resistant, the tired index of anti-vibration is superior to existing water tank product far away.What people worried most is after diesel engine is loaded onto this water tank, diesel engine can or can not influence the normal operation of complete machine because of its thermal diffusivity, the machine temperature, output power, oil consumption, reliability, the water tank surface temperature can or can not alter a great deal, cause diesel engine operating cost to raise, for this reason, the claimant has carried out correlation test in Jintan City's mount emei Diesel Engine Plant, select for use R170 type water-cooled diesel engine to do experiment, one is cast iron flush cistern, another is a plastic cistern of the present invention, is 3kW/h in output power, and rotating speed is to test under the operating conditions of 2600r/min, long run test operation 12 hours, specifically test testing result such as following table:
| Sequence number | The test item content | R170 (cast iron flush cistern) | R170 (plastic cistern) |
| 1 | The water tank surface temperature | 97.4℃ | 91.3℃ |
| 2 | Fuel consumption | 12.38 kilogram | 12.34 |
| 3 | Water usage | 99.60 kilogram | 104.9 |
| 4 | The machine temperature | 87.1℃ | 86.9℃ |
| 5 | Shut down number of times | 0 | 0 |
| 6 | The water tank self-characteristic relatively | ||
| The water tank deadweight | 4040 grams | 675 grams | |
| Water tank capacity (boundary dimension is identical) | 275 cubic millimeters | 325 cubic millimeters | |
The test testing result shows: behind the equipped this plastic cistern of evaporative type water-cooled diesel engine, diesel oil function proper functioning, key technical index such as the machine temperature of diesel engine, output power, oil consumption are compared all very approaching with the cast iron flush cistern diesel engine, there is not the variation of matter, and the water tank surface temperature is lower than cast iron flush cistern surface temperature, and water consumption is higher by about 5.3% than cast iron flush cistern.Hence one can see that, be well suited for as the single-cylinder water cooled diesel engine cooling water tank with the present invention, it has overcome the technology prejudice of people in the selection of single-cylinder water cooled diesel engine cooling water tank for a long time, successfully adopt the compound of engineering plastics and glass fibre, by mold pressing, welding method obtains whole cooling water tank, diesel oil function proper functioning not only, and the machine temperature of diesel engine, output power, key technical index such as oil consumption are compared all very approaching with the cast iron flush cistern diesel engine, the water tank surface temperature, the water tank deadweight, water tank capacity is all good than cast iron flush cistern, only be that water consumption is omited height a bit than cast iron flush cistern, can not increase cost of use, the present invention compares with cast iron flush cistern or aluminum alloy water tank, its overall cost is much lower, and overall economic efficiency is remarkable.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2, Fig. 3 are the structural representation of lower body among Fig. 1; Wherein, Fig. 3 is the plan view of Fig. 2;
Fig. 4～Fig. 6 is the structural representation of upper body among Fig. 1;
Wherein, Fig. 4 is the worm's eye view of Fig. 5; Fig. 6 is the plan view of Fig. 5;
Fig. 7 is flow figure of the present invention;
Among the figure: the 1-upper body; The 11-top board; The 12-wall body; The 13-water inlet that dispels the heat; 14-through hole boss; 15-screw boss; The 16-stiffening rib; 17-fuel tank nut; The 2-lower body; The 21-housing; The 22-lining plank; The 23-eyenut; The 24-step surface; 25-suspension ring lug; 26-circle square hole; The 27-attachment hole; The 28-stiffening rib; The 3-watered cup; The 4-water gauge.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
Embodiment: shown in accompanying drawing 1～6, described single-cylinder water-cooling diesel engine plastic cooling water tank, by upper body 1, lower body 2, watered cup 3, water gauge 4 is formed, upper body 1 is made up of top board 11 and wall body 12, upper body 1 and lower body 2 are formed by 70% nylon 66 and 30% mixture of glass fibers mold pressing, be provided with the heat radiation water inlet 13 of evagination in the upper end of top board 11, end face in relative fuel tank one side is provided with two connection boss that are used for fixing fuel tank, one is through hole boss 14, one is screw boss 15, be embedded with fuel tank nut 17 at screw boss 15, the sectional shape of the wall body 12 of upper body 1 is corresponding with the wall body sectional shape of lower body 2, is provided with stiffening rib 16 in 1 inner chamber of upper body; Described lower body 2 is formed by housing 21, lining plank 22, eyenut 23 composite die casteds, be provided with the step surface 24 that is connected with body in the bottom of lower body 2, bottom side in relative fuel tank one side, be provided with suspension ring lug 25, on step surface 24, be provided with a round square hole 26 that communicates with the body water channel and four attachment holes 27, described lining plank 22 embeddings are pressed in body and connect in the step surface 24, and eyenut 23 embeddings are pressed in the suspension ring lug 25, are provided with stiffening rib 28 at the inner chamber of lower body 2; Upper body 1 is integral by the welding manner watertight fixed with lower body 2; Water gauge 4 is sleeved on the watered cup 3, and watered cup 3 is installed on the heat radiation water inlet 13 of upper body 1.
Embodiments of the present invention are a lot; for example change main part of composite plastic and proportioning, water tank face shaping; the change of inner chamber fine structure; in any case conversion; comprise engineering plastics and glass fibre compound acquisition water tank upper body and lower body as long as adopt, all then that both water tightnesses are integrally welded technological schemes are all within protection scope of the present invention.
The flow of single-cylinder water-cooling diesel engine plastic cooling water tank of the present invention comprises the steps: as shown in Figure 7
1. mixed oven dry takes by weighing engineering plastics and glass fibre by proportioning, mixes and dries;
2. molded, use phantom, following phantom die cast on injection machine, in press casting procedure, accurately put into lining plank or eyenut or fuel tank nut;
3. deburring overlap;
4. the fit welding of upper body and lower body;
5. polishing welding seams;
6. the hydrostatic test;
7. spray paint.
Claims (6)
1. single-cylinder water-cooling diesel engine plastic cooling water tank, it is characterized in that: comprise upper body (1) and lower body (2), upper body (1) is made up of top board (11) and wall body (12), be provided with the heat radiation water inlet (13) of evagination in the upper end of top board (11), end face in relative fuel tank one side is provided with two connection boss that are used for fixing fuel tank, one is through hole boss (14), one is screw boss (15), the sectional shape of the wall body (12) of upper body (1) is corresponding with the wall body sectional shape of lower body (2), is provided with stiffening rib (16) in the inner chamber of upper body (1); Described lower body (2) is formed by housing (21), lining plank (22), eyenut (23) composite die casted, be provided with the step surface (24) that is connected with body in the bottom of lower body (2), on the bottom side of relative fuel tank one side, be provided with suspension ring lug (25), on step surface (24), be provided with a round square hole (26) that communicates with the body water channel and four attachment holes (27), described lining plank (22) embedding is pressed in the step surface (24), eyenut (23) embedding is pressed in the suspension ring lug (25), is provided with stiffening rib (28) at the inner chamber of lower body (2); Upper body (1) is integral by the welding manner watertight fixed with lower body (2); Upper body (1) and lower body (2) are formed by the mixture mold pressing of engineering plastics and glass fibre.
2. single-cylinder water-cooling diesel engine plastic cooling water tank according to claim 1 is characterized in that: the screw boss (15) on upper body (1) is embedded with fuel tank nut (17).
3. single-cylinder water-cooling diesel engine plastic cooling water tank according to claim 1 is characterized in that: described composite plastic master part comprises engineering plastics and glass fibre, and both weight percentages are respectively: engineering plastics 60%～99%; Glass fibre 1%～40%.
4. according to the described single-cylinder water-cooling diesel engine plastic cooling water tank of claim 3, it is characterized in that: described engineering plastics content is 80%～95%; Content of glass fiber is 5%～20%.
5. according to claim 1 or 3 or 4 described single-cylinder water-cooling diesel engine plastic cooling water tanks, it is characterized in that: described engineering plastics are nylon 66.
6. production method of the present invention comprises the steps:
1. mixed oven dry takes by weighing engineering plastics and glass fibre by proportioning, mixes and dries;
2. molded, use phantom, following phantom die cast on injection machine, in press casting procedure, accurately put into lining plank or eyenut or fuel tank nut;
3. deburring overlap;
4. the fit welding of upper body and lower body;
5. polishing welding seams;
6. the hydrostatic test;
7. spray paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101349240A CN101149013A (en) | 2007-11-03 | 2007-11-03 | Plastic cooling water tank of single-cylinder water-cooled diesel engine and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101349240A CN101149013A (en) | 2007-11-03 | 2007-11-03 | Plastic cooling water tank of single-cylinder water-cooled diesel engine and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101149013A true CN101149013A (en) | 2008-03-26 |
Family
ID=39249683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101349240A Pending CN101149013A (en) | 2007-11-03 | 2007-11-03 | Plastic cooling water tank of single-cylinder water-cooled diesel engine and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101149013A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133120A (en) * | 2013-03-15 | 2013-06-05 | 金坛鑫田柴油机有限公司 | Split die-casting single-cylinder water-cooling diesel engine water tank |
| CN107735552A (en) * | 2015-07-02 | 2018-02-23 | 宁波吉利汽车研究开发有限公司 | Holding vessel |
-
2007
- 2007-11-03 CN CNA2007101349240A patent/CN101149013A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133120A (en) * | 2013-03-15 | 2013-06-05 | 金坛鑫田柴油机有限公司 | Split die-casting single-cylinder water-cooling diesel engine water tank |
| CN107735552A (en) * | 2015-07-02 | 2018-02-23 | 宁波吉利汽车研究开发有限公司 | Holding vessel |
| US10151232B2 (en) | 2015-07-02 | 2018-12-11 | Ningbo Geely Automobile Research & Development Co., Ltd. | Storage tank |
| CN107735552B (en) * | 2015-07-02 | 2019-06-14 | 宁波吉利汽车研究开发有限公司 | Holding vessel |
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Open date: 20080326 |