CN110848043A - Improved engine cylinder block and method thereof - Google Patents
Improved engine cylinder block and method thereof Download PDFInfo
- Publication number
- CN110848043A CN110848043A CN201911157688.3A CN201911157688A CN110848043A CN 110848043 A CN110848043 A CN 110848043A CN 201911157688 A CN201911157688 A CN 201911157688A CN 110848043 A CN110848043 A CN 110848043A
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- wear layer
- engine
- cylinder
- aluminum alloy
- layer
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 46
- 238000004372 laser cladding Methods 0.000 claims abstract description 22
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims description 43
- 238000000576 coating method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000009420 retrofitting Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Images
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
- F02F1/004—Cylinder liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
- F02F2200/00—Manufacturing
Abstract
The invention aims to provide an improved engine cylinder block and a method thereof, aiming at the defects of the prior art, the improved engine cylinder block comprises an engine cylinder block and a cylinder sleeve matched with the engine cylinder block, wherein the engine cylinder block is made of an aluminum alloy material, the engine cylinder sleeve is made of cast iron, a first wear-resistant layer is arranged on the inner wall surface of the engine cylinder block, and the first wear-resistant layer is manufactured by using a laser cladding technology.
Description
Technical Field
The invention relates to the field of engines, in particular to an improved engine cylinder block and a method thereof
Background
The cylinder block of a gasoline/diesel engine is generally classified into cast iron and cast aluminum. As is known, because of the strength of aluminum-based materials, cast iron materials are still partially used in an aluminum cylinder engine, cast iron or steel bushings of about 5mm are usually directly cast in a blank of the aluminum engine cylinder, and then through multiple machining processes, technical indexes of design requirements are met, and qualified engine cylinder parts are produced.
In order to solve the problem that the liner is heated and deformed due to the difference of the thermal expansion coefficients of the cast iron and the aluminum alloy matrix of the engine, the latest technology at present is to adopt a plasma spraying technology APS or a thermal spraying technology, an alloy wear-resistant layer with the thickness of about 300 mu m is sprayed on the surface of a cylinder hole of the roughened aluminum alloy engine, the hardness of the coating is higher than that of the traditional cast iron liner, the wear resistance is greatly improved, 1-5% of pores formed by the spraying technology have an oil storage function, lubrication is promoted to play a role in friction reduction and the like, the problems of weight and size increase of the cast iron liner of the aluminum alloy engine cylinder and oil consumption and emission increase caused by inconsistent thermal expansion with the inner wall of the cylinder are solved, and the plasma spraying technology of the cylinder hole is adopted by more and more engine. But also has the problems of high cost of texturing process, complex quality control, low utilization rate of spraying materials, low bonding force between the aluminum substrate of the engine and the coating and low spraying yield.
Disclosure of Invention
It is an object of the present invention to address the deficiencies of the prior art and to provide an improved engine block and method therefor.
The improved engine cylinder body comprises an engine cylinder body and a cylinder sleeve matched with the engine cylinder body, wherein the engine cylinder body is made of an aluminum alloy material, the engine cylinder sleeve is made of cast iron, a first wear-resistant layer is arranged on the surface of the inner wall of the engine cylinder body and is manufactured by using a laser cladding technology, the thickness of the first wear-resistant layer is 100-250 um, and the strength of the first wear-resistant layer is 100-200 MPa.
Further, a second wear-resistant layer is arranged on the outer surface of the cylinder sleeve and is manufactured by using a laser cladding technology, the thickness of the second wear-resistant layer is 100-150 microns, and the strength of the second wear-resistant layer is 100-200 MPa.
Further, first wearing layer includes first ceramic wearing layer and second ceramic wearing layer, first ceramic wearing layer with be provided with first aluminum alloy wearing layer between the second ceramic wearing layer, first ceramic wearing layer thickness is 60um ~ 120um, first aluminum alloy wearing layer thickness is 10um ~ 50um, second ceramic wearing layer thickness is 40um ~ 100 um.
Further, the second wearing layer includes second aluminum alloy wearing layer and third aluminum alloy wearing layer, the second aluminum alloy wearing layer with still be provided with the third ceramic wearing layer between the third aluminum alloy wearing layer, second aluminum alloy wearing layer thickness is 10um ~ 50um, and third ceramic wearing layer thickness is 40um ~ 100um, and third aluminum alloy wearing layer thickness is 10 ~ 50 um.
Further, first ceramic wearing layer thickness is 90um, first aluminum alloy wearing layer thickness is 30um, second ceramic wearing layer thickness is 70 um.
Further, the thickness of the second aluminum alloy wear-resistant layer is 30um, the thickness of the third ceramic wear-resistant layer is 70um, and the thickness of the third aluminum alloy wear-resistant layer is 30 um.
A method of retrofitting an engine block, comprising the steps of:
step 1, processing a positioning hole on the bottom surface of an engine according to design requirements;
step 3, cleaning the cylinder hole of the engine cylinder block in the step 2 at the temperature of 50-60 ℃ to ensure that no cutting residue exists on the surface of the cylinder hole of the engine cylinder block;
step 4, positioning the cylinder bodies in the step 3 on a rotary worktable, and enabling the axis of the cylinder hole of each cylinder body to be superposed with the rotary central line of the rotary worktable;
step 5, after the axis of the cylinder hole of the cylinder body is overlapped with the rotation center line of the rotary worktable in the step 4, the rotary worktable rotates for 90 degrees, so that the axis of the cylinder hole of the cylinder body is in the horizontal direction and rotates at the rotation speed of 30-800R/min;
and 6, moving the laser cladding nozzle at a constant speed of 2000-4000 mm/min along the axis of the cylinder hole of the cylinder body in the step 5, and cladding the aluminum alloy or the ceramic uniformly on the inner wall of the engine cylinder body to form a wear-resistant layer, wherein the thickness of the wear-resistant layer is 100-250 micrometers, and the strength of the wear-resistant layer is 100-200 MPa.
Further, in step 6, powder of a coating material is coated on the inner wall surface of the cylinder hole of the engine, the coating material is synchronously and continuously fed and remelted on the inner wall surface of the cylinder hole of the cylinder body of the engine under the protection of nitrogen or argon by using laser remelting or in the laser irradiation process, wherein the moving speed of the laser cladding nozzle is 3000 mm/min.
Further, the method for improving the engine block by the laser cladding technology can clad the wear-resistant layer on the outer surface of the cylinder sleeve.
Compared with the prior art, the method has the following remarkable advantages:
1. the improved engine cylinder body and the method thereof do not need to carry out high-cost texturing treatment on the surface of the cylinder hole of the all-aluminum engine, the requirements of the laser cladding technology on the above are extremely low, the process cost is greatly reduced, and the yield is obviously improved.
2. According to the improved engine cylinder body and the method thereof, the splashing generated in the coating process of the coating by laser cladding of the engine cylinder hole is less, the pollution of the splashing to each processing surface of the engine is reduced, the splashing cleaning process is reduced, and the production cost is reduced.
3. According to the improved engine cylinder block and the method thereof, the metallurgical bonding is formed between the coating and the substrate by the laser cladding of the engine cylinder hole, the bonding strength is high, and the risk of the coating of the engine cylinder hole falling off is reduced.
4. According to the improved engine cylinder body and the method thereof, the plurality of wear-resistant layers are combined, so that the service life is prolonged on the premise of enhancing the strength of the wear-resistant layers, and meanwhile, the wear-resistant layers with the heat insulation function reduce the heat loss and improve the fuel efficiency of the engine.
5. The improved engine cylinder body and the method thereof can repair the engine with worn cylinder holes, realize the reutilization of the engine cylinder body and reduce the environmental pollution.
Drawings
FIG. 1 is a schematic structural view of an improved engine block according to the present invention.
Fig. 2 is a schematic diagram of a cylinder liner structure of the improved engine block of the present invention.
The labels in the figure are: 1-an engine block, 11 a first wear layer, 111-a first ceramic wear layer, 112-a first aluminum alloy wear layer, 113-a second ceramic wear layer, 12-a cylinder bore; 2-cylinder liner, 21-second wear-resistant layer, 211-second aluminum alloy wear-resistant layer, 212-third ceramic wear-resistant layer and 213-third aluminum alloy wear-resistant layer.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Example 1: as shown in fig. 1-2, the improved engine cylinder block comprises an engine cylinder block 1 and a cylinder sleeve 2 matched with the engine cylinder block, wherein the engine cylinder block 1 is made of an aluminum alloy material, the engine cylinder sleeve 2 is made of a cast iron material, a first wear-resistant layer 11 is arranged on the surface of the inner wall of the engine cylinder block 1, the thickness of the first wear-resistant layer 11 is 100-250 um, and the strength of the first wear-resistant layer is 100-200 MPa.
Further, a second wear-resistant layer 21 is arranged on the outer surface of the cylinder sleeve, the thickness of the second wear-resistant layer 21 is 100-150 um, and the strength of the second wear-resistant layer is 100-200 MPa.
Further, first wearing layer 11 includes first ceramic wearing layer 111 and second ceramic wearing layer 113, first ceramic wearing layer 111 with be provided with first aluminum alloy wearing layer 112 between second ceramic wearing layer 113 for as the base face, improve bonding strength, first ceramic wearing layer 111 thickness is 60um ~ 120um, first aluminum alloy wearing layer thickness 112 degree is 10um ~ 50um, second ceramic wearing layer thickness 113 degree is 40um ~ 100 um.
Further, second wearing layer 21 includes second aluminum alloy wearing layer 211 and third aluminum alloy wearing layer 213, second aluminum alloy wearing layer 211 with still be provided with third ceramic wearing layer 212 between the third aluminum alloy wearing layer 213, second aluminum alloy wearing layer 211 thickness is 10um ~ 50um, and third ceramic wearing layer 212 thickness is 40um ~ 100um, and third aluminum alloy wearing layer 213 thickness is 10 ~ 50um for provide certain protection to third ceramic wearing layer 212, the heat resistance of guarantee cylinder liner can provide the base plane for continuing to melt and cover antifriction.
Further, 111 thicknesses of first ceramic wearing layer are 90um, 112 thicknesses of first aluminum alloy wearing layer are 30um, 113 thicknesses of second ceramic wearing layer are 70 um.
Further, second aluminum alloy wearing layer 211 thickness is 30um, and third ceramic wearing layer 212 thickness is 70um, and third aluminum alloy wearing layer 213 thickness is 30 um.
Further, the first ceramic wear-resistant layer, the second ceramic wear-resistant layer and the third ceramic wear-resistant layer can also be made of metal alloy materials such as nickel-based, cobalt-based, iron-based alloy and tungsten carbide composite materials.
Further, the cylinder liner can also be an iron-based alloy liner.
A method of improving an engine block by laser cladding, comprising the steps of:
step 1, processing a positioning hole on the bottom surface of an engine according to design requirements;
step 3, cleaning the cylinder hole of the engine cylinder block in the step 2 at the temperature of 50-60 ℃ to ensure that no cutting residue exists on the surface of the cylinder hole of the engine cylinder block;
step 4, positioning the cylinder bodies in the step 3 on a rotary worktable, and enabling the axis of the cylinder hole of each cylinder body to be superposed with the rotary central line of the rotary worktable;
step 5, after the axis of the cylinder hole of the cylinder body is overlapped with the rotation center line of the rotary worktable in the step 4, the rotary worktable rotates for 90 degrees, so that the axis of the cylinder hole of the cylinder body is in the horizontal direction and rotates at the rotation speed of 30-800R/min;
and 6, uniformly moving the laser cladding nozzle along the axis of the cylinder hole of the cylinder body in the step 5 at a constant speed of 2000-4000 mm/min, and uniformly cladding the aluminum alloy or ceramic on the inner wall of the engine cylinder body.
Further, in step 6, powder of a coating material is coated on the inner wall surface of the cylinder hole of the engine, the coating material is synchronously and continuously fed and remelted on the inner wall surface of the cylinder hole of the cylinder body of the engine under the protection of nitrogen or argon by using laser remelting or in the laser irradiation process, wherein the moving speed of the laser cladding nozzle is 3000 mm/min.
Furthermore, the thickness of the wear-resistant layer is 100-250 um, and the strength is 100-200 MPa.
Further, the method for forming the wear-resistant layer on the inner wall surface of the cylinder hole of the cylinder body by the laser cladding technology can also be used for cladding the wear-resistant layer on the outer surface of the cylinder sleeve.
Furthermore, the cladding material is preheated before cladding, so that cladding cracks can be reduced.
Further, the cladding material can also be filamentous.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be understood that various modifications and changes may be made by those skilled in the art without departing from the spirit and principle of the present invention, and any modifications, equivalents, improvements, etc. such as modifying the rotation of the engine cylinder into the rotation of the laser cladding gun body itself to achieve the laser cladding of the inner wall of the engine cylinder bore should be included in the protection scope of the appended claims.
Claims (9)
1. The utility model provides a modified engine cylinder body, including engine cylinder body and with engine cylinder body complex cylinder liner, its characterized in that, engine cylinder body uses aluminum alloy material preparation, engine cylinder liner uses cast iron preparation, engine cylinder body inner wall surface is provided with first wearing layer, first wearing layer uses laser cladding technique to make, first wearing layer thickness is 100 ~ 250um, first wearing layer intensity is 100 ~ 200 MPa.
2. The improved engine cylinder block as recited in claim 1, wherein a second wear layer is disposed on an outer surface of the cylinder sleeve, the second wear layer is manufactured by a laser cladding technology, a thickness of the second wear layer is 100-150 μm, and a strength of the second wear layer is 100-200 MPa.
3. The improved engine cylinder block according to claim 1, wherein the first wear layer comprises a first ceramic wear layer and a second ceramic wear layer, a first aluminum alloy wear layer is disposed between the first ceramic wear layer and the second ceramic wear layer, the thickness of the first ceramic wear layer is 60um to 120um, the thickness of the first aluminum alloy wear layer is 10um to 50um, and the thickness of the second ceramic wear layer is 40um to 100 um.
4. The improved engine cylinder block according to claim 2, wherein the second wear layer comprises a second aluminum alloy wear layer and a third aluminum alloy wear layer, a third ceramic wear layer is further disposed between the second aluminum alloy wear layer and the third aluminum alloy wear layer, the thickness of the second aluminum alloy wear layer is 10-50 um, the thickness of the third ceramic wear layer is 40-100 um, and the thickness of the third aluminum alloy wear layer is 10-50 um.
5. The improved engine block according to claim 3, wherein the first ceramic wear layer is 90um thick, the first aluminum alloy wear layer is 30um thick, and the second ceramic wear layer is 70um thick.
6. The improved engine block of claim 4, wherein the second aluminum alloy wear layer is 30um thick, the third ceramic wear layer is 70um thick, and the third aluminum alloy wear layer is 30um thick.
7. A method of retrofitting an engine block, comprising the steps of:
step 1, processing a positioning hole on the bottom surface of an engine according to design requirements;
step 2, processing a cylinder hole of the engine cylinder block by taking the processing positioning hole in the step 1 as a reference, wherein the diameter of the cylinder hole of the engine cylinder block is 0.25-0.4 mm larger than that of the cylinder hole of the engine cylinder block in design;
step 3, cleaning the cylinder hole of the engine cylinder block in the step 2 at the temperature of 50-60 ℃ to ensure that no cutting residue exists on the surface of the cylinder hole of the engine cylinder block;
step 4, positioning the cylinder bodies in the step 3 on a rotary worktable, and enabling the axis of the cylinder hole of each cylinder body to be superposed with the rotary central line of the rotary worktable;
step 5, after the axis of the cylinder hole of the cylinder body is overlapped with the rotation center line of the rotary worktable in the step 4, the rotary worktable rotates for 90 degrees, so that the axis of the cylinder hole of the cylinder body is in the horizontal direction and rotates at the rotation speed of 30-800R/min;
and 6, moving the laser cladding nozzle at a constant speed of 2000-4000 mm/min along the axis of the cylinder hole of the cylinder body in the step 5, and cladding the aluminum alloy or the ceramic uniformly on the inner wall of the engine cylinder body to form a wear-resistant layer, wherein the thickness of the wear-resistant layer is 100-250 micrometers, and the strength of the wear-resistant layer is 100-200 MPa.
8. The method for improving an engine block by the laser cladding technology according to claim 7, characterized in that powder of coating material is coated on the inner wall surface of the cylinder hole of the engine in step 6, the laser cladding nozzle is moved at 3000mm/min by laser remelting or during laser irradiation, and the coating material is synchronously and continuously fed and remelted on the inner wall surface of the cylinder hole of the engine block under the protection of nitrogen or argon.
9. The method for improving the engine block by the laser cladding technology as claimed in claim 7, wherein the method for improving the engine block by the laser cladding technology can weld the wear-resistant layer on the outer surface of the cylinder liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157688.3A CN110848043A (en) | 2019-11-22 | 2019-11-22 | Improved engine cylinder block and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157688.3A CN110848043A (en) | 2019-11-22 | 2019-11-22 | Improved engine cylinder block and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110848043A true CN110848043A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911157688.3A Pending CN110848043A (en) | 2019-11-22 | 2019-11-22 | Improved engine cylinder block and method thereof |
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|---|---|---|---|---|
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| US5182854A (en) * | 1992-01-15 | 1993-02-02 | Cmi International, Inc. | Method for metallurgically bonding pressed-in cylinder liners to a cylinder block |
| WO1995021994A1 (en) * | 1994-02-08 | 1995-08-17 | Man B & W Diesel A/S | A method of manufacturing a cylinder liner, and such a liner |
| US20010037786A1 (en) * | 2000-04-20 | 2001-11-08 | Manfred Fischer | Cylinder liner for combustion engines and manufacturing method |
| CN103527340A (en) * | 2013-10-21 | 2014-01-22 | 潍柴动力(潍坊)再制造有限公司 | Engine cylinder block and remanufacturing method thereof |
| CN204419380U (en) * | 2015-01-28 | 2015-06-24 | 代卫东 | A kind of engine cylinder-body of improvement |
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| CN211549847U (en) * | 2019-11-22 | 2020-09-22 | 代卫东 | Improved engine cylinder |
-
2019
- 2019-11-22 CN CN201911157688.3A patent/CN110848043A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158915A (en) * | 1984-08-29 | 1986-03-26 | Nissan Motor Co Ltd | Wall surface structure of internal-combustion chamber of internal combustion engine |
| US5182854A (en) * | 1992-01-15 | 1993-02-02 | Cmi International, Inc. | Method for metallurgically bonding pressed-in cylinder liners to a cylinder block |
| WO1995021994A1 (en) * | 1994-02-08 | 1995-08-17 | Man B & W Diesel A/S | A method of manufacturing a cylinder liner, and such a liner |
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| CN211549847U (en) * | 2019-11-22 | 2020-09-22 | 代卫东 | Improved engine cylinder |
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