CN110761911B - Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine - Google Patents
Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine Download PDFInfo
- Publication number
- CN110761911B CN110761911B CN201911222156.3A CN201911222156A CN110761911B CN 110761911 B CN110761911 B CN 110761911B CN 201911222156 A CN201911222156 A CN 201911222156A CN 110761911 B CN110761911 B CN 110761911B
- Authority
- CN
- China
- Prior art keywords
- radiating fin
- fin
- cooling
- cylinder
- radiating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 127
- 239000002184 metal Substances 0.000 title claims abstract description 14
- 239000002245 particle Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
Landscapes
- 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)
Abstract
The invention relates to a single-metal cylinder sleeve of a low-emission balanced cooling type air-cooled diesel engine, which comprises a cylinder barrel and cooling fins, wherein the cooling fins are rectangular in shape, the rectangular cooling fins are arranged in a mode of unequal distance from top to bottom along the outer circle of the cylinder barrel, the outer circle of the cylinder barrel is in a concave arc shape along the axial direction, the middle wall thickness is h 1,h1 = 6-7 mm, and the wall thickness of two ends is h 2,h2=h1 +3 mm. Thirteen cooling fins are arranged on the outer circle of the cylinder barrel, and the upper, middle and lower areas are divided from the first cooling fin at the top to the last cooling fin at the tail. The invention can increase the heat radiation area of the radiating fin and improve the whole heat radiation performance of the single metal cylinder sleeve under the condition of keeping the main structural size of the original air-cooled diesel engine unchanged, thereby improving the high-temperature reliability of the air-cooled diesel engine; after the method is applied to the low-emission air-cooled diesel engine, PM particle emission of the air-cooled diesel engine can be greatly reduced.
Description
Technical Field
The invention relates to an air-cooled diesel engine cylinder sleeve, in particular to a single-metal cylinder sleeve of a low-emission balanced cooling type air-cooled diesel engine, and belongs to the technical field of engine parts.
Background
The single-metal cylinder sleeve is widely applied to European single-cylinder or double-cylinder air-cooled diesel engines, the number of radiating fins is large, the distance is small, the periphery of the radiating fins is round, an open notch is arranged at the bolt installation center of a cylinder cover, the whole structure is simple, the cost of parts is low, and the single-metal cylinder sleeve is relatively suitable for being used in European marine climate environments with the highest environmental temperature not exceeding 35 ℃. The temperature of summer environment in the southern area of China is over 35 ℃ mostly and the highest temperature is even 40 ℃, at the moment, the engine oil temperature of the European single-cylinder or double-cylinder air-cooled diesel engine is up to 125 ℃, the piston ring is easy to be bonded due to high temperature, and the phenomenon of cylinder pulling is caused even after the piston ring is continuously used, so that the normal use of the air-cooled diesel engine in summer high-temperature seasons is seriously influenced.
Disclosure of Invention
The invention aims to provide a single-metal cylinder sleeve of an air-cooled diesel engine with balanced emission, which can increase the heat dissipation area of a heat dissipation fin and improve the overall heat dissipation performance of the single-metal cylinder sleeve under the condition that the main structural size of the original air-cooled diesel engine is kept unchanged, so that the high-temperature reliability of the air-cooled diesel engine is improved; after the method is applied to the low-emission air-cooled diesel engine, PM particle emission of the air-cooled diesel engine can be greatly reduced.
According to the technical scheme provided by the invention, the single-metal cylinder sleeve of the low-emission balanced cooling type air-cooled diesel engine comprises a cylinder barrel and cooling fins, wherein the cooling fins are rectangular in shape, the rectangular cooling fins are arranged in a mode of unequal distance from top to bottom along the outer circle of the cylinder barrel, the outer circle of the cylinder barrel is in a concave arc shape along the axial direction, the middle wall thickness is h 1,h1 = 6-7 mm, and the wall thickness at two ends is h 2,h2=h1 +3 mm.
As a further improvement of the invention, thirteen radiating fins are arranged on the outer circle of the cylinder barrel, the upper, middle and lower three areas are divided from the first radiating fin at the top to the last radiating fin at the tail, the distances among the first radiating fin, the second radiating fin, the third radiating fin, the fourth radiating fin and the fifth radiating fin in the upper area are all a 1,a1 =7.5-7.9 mm, the distances among the fifth radiating fin, the sixth radiating fin, the seventh radiating fin, the eighth radiating fin and the ninth radiating fin in the middle area are all a 2,a2=a1 -0.5 mm, and the distances among the ninth radiating fin, the tenth radiating fin, the eleventh radiating fin, the twelfth radiating fin and the thirteenth radiating fin in the lower area are all a 3,a3=a1 -1.0 mm.
As a further improvement of the present invention, the first to thirteenth cooling fins are located at different positions, and the distances from the edges of the cooling fins to the center of the cylinder are different, wherein: the distances from the edges of the thirteen radiating fins near the wind side of the cooling wind and the edges of the thirteen radiating fins on the wind side of the cooling wind to the center of the cylinder are b 1,b1 =63-67 mm, and the distances from the edges of the first radiating fin, the second radiating fin, the third radiating fin, the fifth radiating fin, the seventh radiating fin, the ninth radiating fin, the eleventh radiating fin and the thirteenth radiating fin on the wind side of the cooling wind to the center of the cylinder are b 2,b2=b1 +2 mm.
As a further improvement of the invention, the distance from the edge of the fourth cooling fin, the sixth cooling fin, the eighth cooling fin, the tenth cooling fin and the twelfth cooling fin to the center of the cylinder is b 3,b3=b1 -3 mm.
As a further improvement of the present invention, the distances from the edges of the first, second, third, fifth, seventh, ninth, eleventh, thirteenth cooling fins to the center of the cylinder are b 4,b4=b1 +8 mm.
As a further improvement of the invention, the distance from the edge of the fourth cooling fin, the sixth cooling fin, the eighth cooling fin, the tenth cooling fin and the twelfth cooling fin to the center of the cylinder is b 5,b5=b1 +3 mm.
As a further improvement of the present invention, the structures at the cylinder head bolt centers of the fins are different, wherein the cylinder head bolt centers of the first fin, the second fin, the third fin, the fourth fin, the fifth fin and the sixth fin are of a closed structure and are drilled with holes.
As a further improvement of the present invention, the seventh fin, the eighth fin, the ninth fin, the tenth fin, the eleventh fin, the twelfth fin, and the thirteenth fin are open structures at the cylinder head bolt centers.
As a further improvement of the invention, a cylinder cover mounting surface and an outer circle are arranged at the top of the cylinder barrel near the first cooling fin.
As a further improvement of the invention, a machine body mounting surface and an outer circle are arranged at the tail part of the cylinder barrel close to the thirteenth cooling fin.
Compared with the prior art, the invention has the advantages that:
According to the invention, the outer circle of the cylinder barrel is in a concave arc shape along the axial direction, the minimum wall thickness in the middle is h 1,h1 =6-7 mm, and the wall thickness at the two ends is h 2,h2=h1 +3 mm, so that the overall rigidity of the cylinder barrel is improved, and the deformation of the cylinder sleeve is reduced. The rectangular cooling fins are arranged from top to bottom along the outer circle of the cylinder barrel, and the distances between the edges of the cooling fins and the center of the cylinder are different according to the difference of the positions of the cooling fins and the difference of the strength of the cooling air head, so that the cooling area of the cooling fins of the whole cylinder sleeve is increased, the distance between the cooling fins close to the upper and middle areas of the high-temperature area of the cylinder cover is increased, the channel of cooling air is enlarged, the flow speed of the cooling air passing through the cooling fins is increased, and the cooling effect of the high-temperature area is improved. And meanwhile, the edges of the fourth radiating fin, the sixth radiating fin, the eighth radiating fin, the tenth radiating fin and the twelfth radiating fin are shortened by 5mm on the weak wind side and the leeward side of the cooling wind so as to increase the flow velocity of the cooling wind on the two sides.
According to calculation, the total radiating area of 13 rectangular radiating fins adopted by the invention reaches 0.1785m < 2 >, the periphery of the radiating fins in the prior art is round, the centers of all cylinder cover bolts are of a notched structure, the total area of 14 radiating fins is only 0.1345m < 2 >, the radiating area of the invention is increased by 32.79% compared with that of the prior art, the space between the radiating fins in a high temperature area is increased by reducing one radiating fin, the cooling air channel in the high temperature area is enlarged, the cooling air flow rate is increased, the cooling performance in the high temperature area is enhanced, the cooling performance of the air cooling area is also improved by shortening the middle radiating fins of the radiating fins adjacent to the weak air side and the leeside by 5mm, the cooling effect of the periphery of the cylinder sleeve is more balanced, and the deformation of the cylinder sleeve due to overlarge temperature difference between the upper, the middle and the lower sides and the periphery of the cylinder sleeve is reduced.
The cylinder sleeve has good integral rigidity and balanced cooling, and after being applied to a low-emission air-cooled diesel engine, the engine oil temperature of the air-cooled diesel engine at high temperature is reduced from the original 125 ℃ to 105 ℃ through the optimized matching with the low-emission piston and the piston ring, so that the heat load of the air-cooled diesel engine is reduced, the high-temperature reliability of the product is improved, the engine oil consumption of the product is reduced to below 0.5g/kW.h, and the PM particle emission of the air-cooled diesel engine is greatly reduced.
Drawings
Fig. 1 is a sectional view of a prior art structure.
Fig. 2 is a top view of a prior art structure.
Fig. 3 is a cross-sectional view of the structure of the present invention.
Fig. 4 is a top view of the structure of the present invention.
FIG. 5 is a schematic cross-sectional view of a first heat sink, a second heat sink, a third heat sink, and a fifth heat sink according to the present invention.
Fig. 6 is a schematic cross-sectional view of a fourth heat sink and a sixth heat sink according to the present invention.
Fig. 7 is a schematic cross-sectional view of an eighth fin, a tenth fin, and a twelfth fin according to the present invention.
Fig. 8 is a schematic cross-sectional view of a seventh fin, a ninth fin, an eleventh fin, and a thirteenth fin according to the present invention.
Reference numerals illustrate:
1-cylinder, 2-fin, 2-1-first fin, 2-2-second fin, 2-3-third fin, 2-4-fourth fin, 2-5-fifth fin, 2-6-sixth fin, 2-7-seventh fin, 2-8-eighth fin, 2-9-ninth fin, 2-10-tenth fin, 2-11-eleventh fin, 2-12-twelfth fin, 2-13-thirteenth fin, 3-cylinder head mounting surface and outer circle, 4-body mounting surface and outer circle, 5-near wind side, 6-strong wind side, 7-leeward side, 8-weak wind side.
Detailed Description
The invention will be further described with reference to examples of embodiments in the accompanying drawings, in which:
As shown in fig. 2 to 8, the invention mainly comprises a cylinder 1, a plurality of radiating fins 2 with different shapes on the outer circle of the cylinder, a cylinder cover mounting surface, an outer circle 3, a machine body mounting surface, an outer circle 4 and other structures. The appearance of fin is rectangle, through adopting the mode of rectangle fin unequally to arrange from top to bottom along the cylinder excircle, 1 excircle of cylinder is concave arc along the axial, and middle minimum wall thickness is h 1(h1 = 6 ~ 7 millimeters), and both ends wall thickness is thicker for h 2(h2=h1 +3 millimeters. The top of the cylinder barrel 1 is provided with a cylinder cover mounting surface and an outer circle 3 close to the first cooling fin 2-1; the tail part of the cylinder barrel is provided with a machine body mounting surface and an excircle 4 close to the thirteenth radiating fins 2-13.
Further, thirteen cooling fins are arranged on the outer circle of the cylinder barrel 1, the cooling fins from the first cooling fin at the top to the last cooling fin at the tail are divided into an upper region, a middle region and a lower region, the spaces among the first cooling fin 2-1, the second cooling fin 2-2, the third cooling fin 2-3, the fourth cooling fin 2-4 and the fifth cooling fin 2-5 in the upper region are all a 1(a1 =7.5-7.9 mm), the spaces among the fifth cooling fin 2-5, the sixth cooling fin 2-6, the seventh cooling fin 2-7, the eighth cooling fin 2-8 and the ninth cooling fin 2-9 in the middle region are all a 2(a2=a1 -0.5 mm, and the spaces among the ninth cooling fin 2-9, the tenth cooling fin 2-10, the eleventh cooling fin 2-11, the twelfth cooling fin 2-12 and the thirteenth cooling fin 2-13 in the lower region are all a 3(a3=a1 -1.0 mm.
Further, the first to thirteenth cooling fins are located at different positions, and distances from edges of the cooling fins to the center of the cylinder are different, wherein: the distances from the edges of the thirteen cooling fins near the cooling wind near side 5 and the edges of the thirteen cooling fins on the cooling wind strong side 6 to the center of the cylinder are b 1(b1 =63-67 mm, and the distances from the edges of the first cooling fin 2-1, the second cooling fin 2-2, the third cooling fin 2-3, the fifth cooling fin 2-5, the seventh cooling fin 2-7, the ninth cooling fin 2-9, the eleventh cooling fin 2-11 and the thirteenth cooling fin 2-13 to the center of the cylinder are b 2(b2=b1 +2 mm).
Further, the distances from the edges of the fourth cooling fin 2-4, the sixth cooling fin 2-6, the eighth cooling fin 2-8, the tenth cooling fin 2-10, and the twelfth cooling fin 2-12 to the center of the cylinder are b 3(b3=b1 -3 mm.
Further, the distances from the edges of the first cooling fin 2-1, the second cooling fin 2-2, the third cooling fin 2-3, the fifth cooling fin 2-5, the seventh cooling fin 2-7, the ninth cooling fin 2-9, the eleventh cooling fin 2-11 and the thirteenth cooling fin 2-13 to the center of the cylinder are b 4(b4=b1 +8 mm.
Further, the distances from the edges of the fourth radiating fin 2-4, the sixth radiating fin 2-6, the eighth radiating fin 2-8, the tenth radiating fin 2-10 and the twelfth radiating fin 2-12 on the leeward side to the center of the cylinder are b 5(b5=b1 +3 mm).
Further, the cylinder head bolts of the cooling fins have different centers, wherein the centers of the cylinder head bolts of the first cooling fin 2-1, the second cooling fin 2-2, the third cooling fin 2-3, the fourth cooling fin 2-4, the fifth cooling fin 2-5 and the sixth cooling fin 2-6 are of closed structures and are drilled with 4-phi d holes.
Further, the seventh heat radiating fin 2-7, the eighth heat radiating fin 2-8, the ninth heat radiating fin 2-9, the tenth heat radiating fin 2-10, the eleventh heat radiating fin 2-11, the twelfth heat radiating fin 2-12 and the thirteenth heat radiating fin 2-13 are of an open type structure at the center of the cylinder head bolt.
Under the condition of keeping the main structural size of the original air-cooled diesel engine unchanged, the temperature difference between the upper part and the lower part and the periphery of the cylinder sleeve is kept within 30 ℃ by changing the spacing and the appearance of the cooling fins at the periphery of the cylinder sleeve, so that the cylinder sleeve is ensured not to deform when the air-cooled diesel engine works under a high-temperature environment under a heavy load; and then the shape of the radiating fin is changed, the radiating area of the radiating fin is increased, and the overall radiating performance of the single-metal cylinder sleeve is improved, so that the high-temperature reliability of the air-cooled diesel engine is improved. Because the newly developed cylinder sleeve has good integral rigidity and balanced cooling, PM particle emission of the air-cooled diesel engine can be greatly reduced after the cylinder sleeve is applied to the low-emission air-cooled diesel engine.
The embodiment of the invention is not limited to an air-cooled diesel engine with the diameter of the cylinder sleeve of phi 87mm, and the air-cooled diesel engine with the diameter of the cylinder sleeve of phi 60-110mm can be implemented.
Claims (3)
1. The utility model provides a low emission balanced cooling formula air-cooled diesel engine's single metal cylinder jacket, includes cylinder and fin, characterized by: the outer shape of the radiating fin is rectangular, the rectangular radiating fin is arranged in a mode of unequal distance from top to bottom along the outer circle of the cylinder barrel, the outer circle of the cylinder barrel is in a concave arc shape along the axial direction, the middle wall thickness is h 1,h1 = 6-7 mm, and the wall thickness at two ends is h 2,h2=h1 +3 mm;
Thirteen radiating fins are arranged on the outer circle of the cylinder barrel, the upper, middle and lower three areas are divided from the first radiating fin at the top to the last radiating fin at the tail, the intervals among the first radiating fin, the second radiating fin, the third radiating fin, the fourth radiating fin and the fifth radiating fin in the upper area are all a 1,a1 =7.5-7.9 mm, the intervals among the fifth radiating fin, the sixth radiating fin, the seventh radiating fin and the eighth radiating fin to the ninth radiating fin in the middle area are all a 2,a2=a1 -0.5 mm, and the intervals among the ninth radiating fin, the tenth radiating fin, the eleventh radiating fin, the twelfth radiating fin and the thirteenth radiating fin in the lower area are all a 3,a3=a1 -1.0 mm;
the positions of the first cooling fin to the thirteenth cooling fin are different, the distances from the edges of the cooling fin to the center of the cylinder are different, and the distances from the edges of the cooling fin to the center of the cylinder are different, wherein: the distances from the edges of the thirteen radiating fins close to the near wind side of the cooling wind and the edges of the thirteen radiating fins on the strong wind side of the cooling wind to the center of the cylinder are b 1,b1 =63-67 mm, and the distances from the edges of the first radiating fin, the second radiating fin, the third radiating fin, the fifth radiating fin, the seventh radiating fin, the ninth radiating fin, the eleventh radiating fin and the thirteenth radiating fin on the weak wind side of the cooling wind to the center of the cylinder are b 2,b2=b1 +2 mm;
The distance from the edges of the fourth radiating fin, the sixth radiating fin, the eighth radiating fin, the tenth radiating fin and the twelfth radiating fin to the center of the cylinder is b 3,b3=b1 -3 mm;
The distances from the edges of the first radiating fin, the second radiating fin, the third radiating fin, the fifth radiating fin, the seventh radiating fin, the ninth radiating fin, the eleventh radiating fin and the thirteenth radiating fin to the center of the cylinder are b 4,b4=b1 +8 millimeters;
the distance from the edges of the fourth radiating fin, the sixth radiating fin, the eighth radiating fin, the tenth radiating fin and the twelfth radiating fin positioned on the leeward side of the cooling wind to the center of the cylinder is b 5,b5=b1 +3 millimeters;
The cylinder head bolt centers of the cooling fins are different in structure, wherein the cylinder head bolt centers of the first cooling fin, the second cooling fin, the third cooling fin, the fourth cooling fin, the fifth cooling fin and the sixth cooling fin are of closed structures and drilled with holes;
The seventh radiating fin, the eighth radiating fin, the ninth radiating fin, the tenth radiating fin, the eleventh radiating fin, the twelfth radiating fin and the thirteenth radiating fin are of an open structure at the center of a cylinder head bolt.
2. The single-metal cylinder liner of the low-emission balanced cooling type air-cooled diesel engine as set forth in claim 1, wherein: the top of the cylinder barrel is provided with a cylinder cover mounting surface and an excircle near the first cooling fin.
3. The single-metal cylinder liner of the low-emission balanced cooling type air-cooled diesel engine as set forth in claim 1, wherein: the tail part of the cylinder barrel is provided with a machine body mounting surface and an excircle near the thirteenth radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911222156.3A CN110761911B (en) | 2019-12-03 | 2019-12-03 | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911222156.3A CN110761911B (en) | 2019-12-03 | 2019-12-03 | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110761911A CN110761911A (en) | 2020-02-07 |
| CN110761911B true CN110761911B (en) | 2024-05-28 |
Family
ID=69340816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911222156.3A Active CN110761911B (en) | 2019-12-03 | 2019-12-03 | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110761911B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1011102A (en) * | 1961-08-04 | 1965-11-24 | Kloeckner Humboldt Deutz Ag | Working cylinder for air-cooled internal combustion engines |
| CN2074819U (en) * | 1989-12-18 | 1991-04-10 | 长沙内燃机研究所 | Model 175f-1 diesel engine single metal cylinder sleeve |
| TW200831774A (en) * | 2007-01-29 | 2008-08-01 | Kwang Yang Motor Co | Heat dissipation structure of an engine |
| CN101907037A (en) * | 2010-06-09 | 2010-12-08 | 金坛柴油机有限公司 | Single cylinder water cooling diesel engine box with cylinder diameter of 78 mm |
| CN109826718A (en) * | 2019-03-22 | 2019-05-31 | 无锡华源凯马发动机有限公司 | The body of big stroke low emission single-cylinder air-cooled diesel engine |
| CN211474274U (en) * | 2019-12-03 | 2020-09-11 | 无锡华源凯马发动机有限公司 | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine |
-
2019
- 2019-12-03 CN CN201911222156.3A patent/CN110761911B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1011102A (en) * | 1961-08-04 | 1965-11-24 | Kloeckner Humboldt Deutz Ag | Working cylinder for air-cooled internal combustion engines |
| CN2074819U (en) * | 1989-12-18 | 1991-04-10 | 长沙内燃机研究所 | Model 175f-1 diesel engine single metal cylinder sleeve |
| TW200831774A (en) * | 2007-01-29 | 2008-08-01 | Kwang Yang Motor Co | Heat dissipation structure of an engine |
| CN101907037A (en) * | 2010-06-09 | 2010-12-08 | 金坛柴油机有限公司 | Single cylinder water cooling diesel engine box with cylinder diameter of 78 mm |
| CN109826718A (en) * | 2019-03-22 | 2019-05-31 | 无锡华源凯马发动机有限公司 | The body of big stroke low emission single-cylinder air-cooled diesel engine |
| CN211474274U (en) * | 2019-12-03 | 2020-09-11 | 无锡华源凯马发动机有限公司 | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110761911A (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201326734Y (en) | Composite piston | |
| CN102536494A (en) | Cooling water jacket structure of diesel engine cylinder body | |
| CN110761911B (en) | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine | |
| CN211474274U (en) | Single-metal cylinder sleeve of low-emission balanced cooling type air-cooled diesel engine | |
| CN107131025B (en) | Engine oil pan heat radiation structure | |
| CN103114921A (en) | V-shaped diesel engine body | |
| CN202648493U (en) | Combined heat radiation pipe with two foldable sides | |
| CN206530416U (en) | Motorcycle engine structure | |
| CN206060399U (en) | A kind of permagnetic synchronous motor casing structure | |
| CN114837843A (en) | Conjoined cylinder jacket suitable for compact multi-cylinder diesel engine | |
| CN204126719U (en) | A kind of simplex pressure oil engine intercooler suction chamber and intercooler | |
| CN203476530U (en) | Diesel engine tank | |
| CN204200340U (en) | A kind of Novel fork row flow-disturbing pipe racks water radiator | |
| CN203146394U (en) | C-shaped shroud | |
| CN202673473U (en) | Automobile engine piston | |
| CN213116489U (en) | Crankshaft box | |
| CN201935613U (en) | Loop combination heat exchanger with centrifugal fan | |
| CN205823469U (en) | A kind of cylinder of motorcycle engine assembly | |
| CN110894795A (en) | Bent rib structure for internal cooling channel of front edge of turbine blade | |
| CN103470388B (en) | The two split type single cylinder diesel cylinder cover of cooling type in geomantic omen | |
| CN205534672U (en) | Heat dissipation type finish rolling seamless steel pipe for vehicle vent -pipe | |
| CN204663665U (en) | One is applicable to mountain region agricultural machinery Novel diesel engine | |
| CN211038849U (en) | Air-cooled engine cylinder | |
| CN202228202U (en) | Cooling air channel structure for single-cylinder air-cooling air cylinder cover | |
| CN2876347Y (en) | Bistroke cylinder jacket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |