CN112628007A - Multi-lamination heat insulation material cylinder sleeve structure - Google Patents
Multi-lamination heat insulation material cylinder sleeve structure Download PDFInfo
- Publication number
- CN112628007A CN112628007A CN202011523211.5A CN202011523211A CN112628007A CN 112628007 A CN112628007 A CN 112628007A CN 202011523211 A CN202011523211 A CN 202011523211A CN 112628007 A CN112628007 A CN 112628007A
- Authority
- CN
- China
- Prior art keywords
- insulation material
- heat insulation
- cavity
- cylinder sleeve
- material layer
- 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.)
- Pending
Links
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
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 provides a multi-lamination heat insulation material cylinder sleeve structure which comprises a cylinder sleeve substrate, an annular heat insulation material layer and a bonding layer, wherein the cylinder sleeve substrate is of a cylindrical structure which is rotationally symmetrical around a central shaft, and the outer ring surface of the cylinder sleeve substrate is respectively contacted with engine cooling water and a machine body and is used for fixing and taking away redundant heat; the inner ring surface of the cylinder sleeve base body is connected with the annular heat insulation material layer through the bonding layer. The multi-lamination heat-insulating material cylinder sleeve structure can ensure the structural strength required by the cylinder sleeve and can resist the alternating load impact of high explosion pressure in a high-power-density engine cylinder; and the heat dissipation capacity of the cylinder sleeve transferred to a cooling system can be reduced through the heat insulation material layer with low heat conductivity, the specific heat dissipation rate of the engine is further reduced, and the purposes of reducing the volume of an engine auxiliary system and reducing power consumption are achieved.
Description
Technical Field
The invention belongs to the technical field of high-power-density engine heat insulation, and particularly relates to a multi-lamination heat insulation material cylinder sleeve structure.
Background
Aiming at the problems of large cooling heat dissipation capacity and high heat load of a heated part of a high-power-density engine, such as large volume of an auxiliary system and high power consumption, in order to realize the development direction and the target of a high-compactness and light-weight engine, the specific heat dissipation rate of the engine needs to be reduced, and the temperature resistance of key heated parts needs to be improved. The heavy parts around the engine combustion chamber, especially the cylinder sleeve, have great influence on improving the thermal resistance and reducing the heat dissipation capacity, so a novel heat-insulating cylinder sleeve structure needs to be designed.
Disclosure of Invention
In view of the above, the present invention is directed to a cylinder liner structure with multiple laminated heat insulating materials, so as to provide a cylinder liner capable of reducing the specific heat dissipation rate of an engine and improving the heating temperature capability.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the cylinder sleeve structure with the multi-lamination heat insulation materials comprises a cylinder sleeve substrate, an annular heat insulation material layer and a bonding layer, wherein the cylinder sleeve substrate is of a cylindrical structure which is rotationally symmetrical around a central shaft, and the outer ring surface of the cylinder sleeve substrate is respectively contacted with engine cooling water and a machine body and is used for fixing and taking away redundant heat; the inner ring surface of the cylinder sleeve base body is connected with the annular heat insulation material layer through the bonding layer.
Furthermore, the material of the cylinder sleeve substrate is iron-based or aluminum-based.
Further, the cylinder jacket base member includes a base member, No. two base members, No. three base members, No. four base members of integrative structure, and a base member, No. two base members, No. three base members are the hollow cylinder structure that the external diameter is degressive in proper order, and the three connects gradually from last to bottom, No. three base member below rigid coupling No. four base members, No. four base members are hollow round platform structure, and a base member top outside is equipped with the annular arch.
Furthermore, a chamfer is arranged at the edge of the top of the first base body.
Furthermore, the inner diameters of the first base body and the second base body are the same, a first cavity is formed after the inner diameters of the first base body and the second base body are communicated, the first cavity is a cylindrical cavity, and the inner wall of the first cavity is connected with the annular heat insulation material layer through the bonding layer.
Furthermore, the internal diameters of the third base body and the fourth base body are the same, a second cavity is formed after the internal diameters of the third base body and the fourth base body are communicated, the second cavity is a cylindrical cavity and is communicated with the first cavity, the aperture of the second cavity is smaller than that of the first cavity, a step structure is formed at the joint of the first cavity and the second cavity, and an annular heat insulation material layer is arranged above the step of the step.
Further, the annular heat insulation material layer is an annular cylindrical structure which is rotationally symmetrical around the central axis, and the inner diameter of the annular heat insulation material layer is the same as the aperture of the cavity II.
Furthermore, the axial length of the first cavity is not less than that of the annular heat insulation material layer, the aperture of the first cavity is larger than the diameter of the outer ring surface of the annular heat insulation material layer, and an adhesive layer is arranged in an annular gap between the annular heat insulation material layer and the inner wall of the first cavity.
Furthermore, the material of the bonding layer is active brazing filler metal, and the cylinder sleeve substrate and the annular heat insulation material layer are connected through a brazing process.
Further, the material of the annular heat insulation material layer is a high-heat-resistance material, and the thermal conductivity of the annular heat insulation material layer is not more than 3.5W/mk.
Compared with the prior art, the cylinder liner structure of the multi-stack heat-insulating material has the following advantages:
(1) the multi-lamination heat-insulating material cylinder sleeve structure can ensure the structural strength required by the cylinder sleeve and can resist the alternating load impact of high explosion pressure in a high-power-density engine cylinder; and the heat dissipation capacity of the cylinder sleeve transferred to a cooling system can be reduced through the heat insulation material layer with low heat conductivity, the specific heat dissipation rate of the engine is further reduced, and the purposes of reducing the volume of an engine auxiliary system and reducing power consumption are achieved.
(2) According to the multi-lamination heat insulation material cylinder sleeve structure, the top of the first base body is of the chamfering structure, the chamfering structure plays a role in positioning and guiding the installation of the annular heat insulation material layer, the cylinder sleeve is convenient to assemble, the time is greatly saved, and the working efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a multi-layered insulation material cylinder liner structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a cylinder liner base body according to an embodiment of the present invention;
fig. 3 is a side view of the cylinder liner base according to the embodiment of the present invention;
fig. 4 is a cross-sectional view of the cylinder liner base according to the embodiment of the present invention;
FIG. 5 is a schematic view of an annular layer of thermal insulation material according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an adhesive layer according to an embodiment of the present invention.
Description of reference numerals:
1-a cylinder sleeve substrate; 11-base No. one; 12-base No. two; 13-base III; 14-matrix No. four; 15-bulge; 16-chamfering; 17-cavity number one; 18-cavity II; 2-a layer of annular thermal insulation material; 3-adhesive layer.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A cylinder liner structure with multi-lamination heat insulation materials comprises a cylinder liner base body 1, an annular heat insulation material layer 2 and a bonding layer 3, wherein the cylinder liner base body 1 is a cylindrical structure which is rotationally symmetrical around a central axis, and the outer ring surface of the cylinder liner base body 1 is respectively contacted with engine cooling water and a machine body and is used for fixing and taking away redundant heat; the inner ring surface is connected to the annular layer 2 of insulating material by means of an adhesive layer 3. The material of the cylinder sleeve matrix 1 is iron-based or aluminum-based; when the engine works, the inner ring surface of the annular heat insulation material layer 2 is in contact with the piston, and the inner ring surface of the annular heat insulation material layer 2, the bottom surface of the cylinder cover and the top surface of the piston form a combustion chamber which is in direct contact with and transfers the heat of the engine.
Cylinder jacket base member 1 includes a base member 11 of a body structure, No. two base members 12, No. three base members 13, No. four base members 14 and arch 15, a base member 11, No. two base members 12, No. three base members 13 are the degressive hollow cylinder structure in proper order of external diameter, and the three connects gradually from last to last, No. three base member 13 below rigid coupling No. four base members 14, No. four base members 14 are hollow round platform structure, a base member 11 top outside is equipped with annular arch 15, and top edge is equipped with chamfer 16, chamfer 16 plays the installation of location to annular heat insulating material layer 2, the effect of direction. An annular groove is formed between the protrusion 15 and the first base body 11, so that the first base body 11 can be conveniently connected with an external part.
The inner diameters of the first base body 11 and the second base body 12 are the same, the inner diameters of the first base body and the second base body are communicated to form a first cavity 17, the first cavity 17 is a cylindrical cavity, and the inner wall of the first cavity 17 is connected with the annular heat insulation material layer 2 through the bonding layer 3.
The inner diameters of the third base body 13 and the fourth base body 14 are the same, the inner diameters of the third base body and the fourth base body are communicated to form a second cavity 18, the second cavity 18 is a cylindrical cavity, the second cavity 18 is communicated with the first cavity 17, the aperture of the second cavity 18 is smaller than that of the first cavity 17, a step structure is formed at the joint of the first cavity 18 and the second cavity 17, and the annular heat insulation material layer 2 is arranged above the step of the step.
The joints of the outer walls of the first matrix 11, the second matrix 12, the third matrix 13 and the fourth matrix 14 are all in a chamfer structure, so that components or workers are prevented from being scratched in the installation process,
the annular heat insulation material layer 2 is an annular cylindrical structure with a certain thickness and rotational symmetry around a central axis, and the inner diameter of the annular heat insulation material layer 2 is the same as the outer diameter of the second cavity 18, so that the inner bore diameter of the mounted cylinder sleeve is consistent.
The axial length of a first cavity 17 is more than or equal to that of the annular heat insulation material layer 2, the outer diameter of the first cavity 17 is more than the diameter of the outer ring surface of the annular heat insulation material layer 2, and an adhesive layer 3 is arranged in an annular gap between the annular heat insulation material layer 2 and the inner wall of the first cavity 17 and used for connecting two different materials.
The bonding layer 3 is generally silver copper titanium, titanium zirconium nickel copper and other active brazing filler metals, and the cylinder sleeve matrix 1 and the annular heat insulation material layer 2 are connected through a brazing process.
The thermal conductivity of the material of the annular heat insulating material layer 2 is not more than 3.5W/mk, the material is generally but not limited to high thermal resistance materials such as silicon nitride, zirconium oxide and the like, and the thickness of the material is generally more than or equal to 2 mm.
The multi-lamination cylinder sleeve structure formed by connecting the annular heat insulation material layer 2 and the cylinder sleeve substrate 1 can ensure the structural strength required by the cylinder sleeve and resist the alternating load impact with high explosion pressure in a high-power-density engine cylinder; and the heat dissipation capacity of the cylinder sleeve transferred to a cooling system can be reduced through the heat insulation material layer with low heat conductivity, and the specific heat dissipation rate of the engine is further reduced. The purposes of reducing the volume of an engine auxiliary system and reducing power consumption are achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A multi-lamination heat insulation material cylinder sleeve structure is characterized in that: the cylinder sleeve comprises a cylinder sleeve substrate, an annular heat insulation material layer and a bonding layer, wherein the cylinder sleeve substrate is of a cylindrical structure which is rotationally symmetrical around a central shaft, and the outer ring surface of the cylinder sleeve substrate is respectively contacted with engine cooling water and a machine body and is used for fixing and taking away redundant heat; the inner ring surface of the cylinder sleeve base body is connected with the annular heat insulation material layer through the bonding layer.
2. The cylinder liner structure of claim 1, wherein: the material of the cylinder sleeve substrate is iron-based or aluminum-based.
3. The cylinder liner structure of claim 1, wherein: the cylinder sleeve base member includes a base member, No. two base members, No. three base members, No. four base members of integrative structure, and a base member, No. two base members, No. three base members are the hollow cylinder structure that the external diameter is degressive in proper order, and the three connects gradually from top to bottom, No. three base member below rigid coupling No. four base members, No. four base members are hollow round platform structure, and No. one base member top outside is equipped with annular protrusion.
4. The cylinder liner structure of claim 3, wherein: a chamfer is arranged at the edge of the top of the first base body.
5. The cylinder liner structure of claim 3, wherein: the inner diameters of the first base body and the second base body are the same, a first cavity is formed after the inner diameters of the first base body and the second base body are communicated, the first cavity is a cylindrical cavity, and the inner wall of the first cavity is connected with the annular heat insulation material layer through the adhesive layer.
6. The cylinder liner structure of claim 4, wherein: the inner diameters of the third base body and the fourth base body are the same, a second cavity is formed after the inner diameters of the third base body and the fourth base body are communicated, the second cavity is a cylindrical cavity and is communicated with the first cavity, the aperture of the second cavity is smaller than that of the first cavity, a step structure is formed at the joint of the first cavity and the second cavity, and an annular heat insulation material layer is arranged above the step of the step.
7. The cylinder liner structure of claim 6, wherein: the annular heat insulation material layer is an annular cylindrical structure which is rotationally symmetrical around the central axis, and the inner diameter of the annular heat insulation material layer is the same as the aperture of the second cavity.
8. The cylinder liner structure of claim 5, wherein: the axial length of the first cavity is not less than that of the annular heat insulation material layer, the aperture of the first cavity is larger than the diameter of the outer ring surface of the annular heat insulation material layer, and an adhesive layer is arranged in an annular gap between the annular heat insulation material layer and the inner wall of the first cavity.
9. The cylinder liner structure of claim 1, wherein: the material of the bonding layer is active brazing filler metal, and the cylinder sleeve matrix and the annular heat insulation material layer are connected through a brazing process.
10. The cylinder liner structure of claim 1, wherein: the annular heat insulation material layer is made of a high-heat-resistance material, and the heat conductivity of the annular heat insulation material layer is not more than 3.5W/mk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011523211.5A CN112628007A (en) | 2020-12-21 | 2020-12-21 | Multi-lamination heat insulation material cylinder sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011523211.5A CN112628007A (en) | 2020-12-21 | 2020-12-21 | Multi-lamination heat insulation material cylinder sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628007A true CN112628007A (en) | 2021-04-09 |
Family
ID=75320458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011523211.5A Pending CN112628007A (en) | 2020-12-21 | 2020-12-21 | Multi-lamination heat insulation material cylinder sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628007A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010037786A1 (en) * | 2000-04-20 | 2001-11-08 | Manfred Fischer | Cylinder liner for combustion engines and manufacturing method |
| CN201277103Y (en) * | 2008-11-03 | 2009-07-22 | 山东潍坊拖拉机厂集团有限公司 | Cylinder jacket of diesel engine |
| US20160376690A1 (en) * | 2015-06-29 | 2016-12-29 | GM Global Technology Operations LLC | Phosphating or anodizing for improved bonding of thermal spray coating on engine cylinder bores |
| CN106401778A (en) * | 2016-09-13 | 2017-02-15 | 中国北方发动机研究所(天津) | Cylinder sleeve structure for diesel and manufacturing method of cylinder sleeve structure |
| CN206111362U (en) * | 2016-08-19 | 2017-04-19 | 扬州神驰缸套有限公司 | Wear resistant wet cylinder liner of solar heat protection |
| US20170145914A1 (en) * | 2015-11-20 | 2017-05-25 | Federal-Mogul Corporation | Thermally insulated engine components and method of making using a ceramic coating |
| CN107091155A (en) * | 2016-02-17 | 2017-08-25 | 通用汽车环球科技运作有限责任公司 | Composite thermal barrier coating |
| CN107365957A (en) * | 2016-05-13 | 2017-11-21 | 现代自动车株式会社 | Cylinder jacket and its manufacture method for castingin |
| CN109778104A (en) * | 2019-03-06 | 2019-05-21 | 扬州大学 | A kind of cylinder liner internal wall heat insulation and wear resistance composite coating and preparation method |
| CN111663092A (en) * | 2020-05-19 | 2020-09-15 | 上海亚域动力工程有限公司 | Ceramic thermal barrier coating on surface of metal substrate and application of ceramic thermal barrier coating in engine |
| CN212177285U (en) * | 2020-11-23 | 2020-12-18 | 山东久丰动力科技有限公司 | Wear-resistant cylinder sleeve |
-
2020
- 2020-12-21 CN CN202011523211.5A patent/CN112628007A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010037786A1 (en) * | 2000-04-20 | 2001-11-08 | Manfred Fischer | Cylinder liner for combustion engines and manufacturing method |
| CN201277103Y (en) * | 2008-11-03 | 2009-07-22 | 山东潍坊拖拉机厂集团有限公司 | Cylinder jacket of diesel engine |
| US20160376690A1 (en) * | 2015-06-29 | 2016-12-29 | GM Global Technology Operations LLC | Phosphating or anodizing for improved bonding of thermal spray coating on engine cylinder bores |
| US20170145914A1 (en) * | 2015-11-20 | 2017-05-25 | Federal-Mogul Corporation | Thermally insulated engine components and method of making using a ceramic coating |
| CN107091155A (en) * | 2016-02-17 | 2017-08-25 | 通用汽车环球科技运作有限责任公司 | Composite thermal barrier coating |
| CN107365957A (en) * | 2016-05-13 | 2017-11-21 | 现代自动车株式会社 | Cylinder jacket and its manufacture method for castingin |
| CN206111362U (en) * | 2016-08-19 | 2017-04-19 | 扬州神驰缸套有限公司 | Wear resistant wet cylinder liner of solar heat protection |
| CN106401778A (en) * | 2016-09-13 | 2017-02-15 | 中国北方发动机研究所(天津) | Cylinder sleeve structure for diesel and manufacturing method of cylinder sleeve structure |
| CN109778104A (en) * | 2019-03-06 | 2019-05-21 | 扬州大学 | A kind of cylinder liner internal wall heat insulation and wear resistance composite coating and preparation method |
| CN111663092A (en) * | 2020-05-19 | 2020-09-15 | 上海亚域动力工程有限公司 | Ceramic thermal barrier coating on surface of metal substrate and application of ceramic thermal barrier coating in engine |
| CN212177285U (en) * | 2020-11-23 | 2020-12-18 | 山东久丰动力科技有限公司 | Wear-resistant cylinder sleeve |
Non-Patent Citations (2)
| Title |
|---|
| 李学伟: "《金属材料工程实践教程》", 31 March 2014 * |
| 胡传炘等: "《涂层技术原理及应用》", 30 September 2000 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101479460B (en) | Heat exchanger assembly | |
| US20050268606A1 (en) | Stirling cycle engine or heat pump with improved heat exchanger | |
| WO2013170559A1 (en) | Waste gas inlet end structure of egr cooler | |
| US20160211086A1 (en) | Apparatus for enclosing energy storage devices | |
| CN112628007A (en) | Multi-lamination heat insulation material cylinder sleeve structure | |
| CN111595463A (en) | Split type Dewar cold platform with low contact thermal resistance and coupling stress isolation | |
| US6952921B2 (en) | Heater head assembly system and method | |
| JPH11297369A (en) | Battery cell sleeve | |
| CN101882818A (en) | Double-layer shell screw rod drilling tool motor stator | |
| CN211819697U (en) | Automobile piston with good heat dissipation performance | |
| CN211624456U (en) | Seamless steel pipe for liquid conveying | |
| TWM612191U (en) | Heat-dissipation module | |
| CN214470208U (en) | Radiator radiating tube with end part reinforcing structure | |
| JP2009293406A (en) | Piston engine and stirling engine | |
| US9086032B2 (en) | Stirling engine and engine system comprising stirling engine | |
| US11946677B2 (en) | Refrigerant flow path unit and refrigeration apparatus | |
| CN214741712U (en) | Heat insulation piston with ceramic insert | |
| CN212508810U (en) | Compressor | |
| CN215451613U (en) | Heat exchange structure, battery package and vehicle | |
| CN217134564U (en) | Power battery package box structure, power battery package and car | |
| CN113819057A (en) | Compressor and method of manufacturing the same | |
| CN220083676U (en) | Hearth of heat accumulating molten salt furnace | |
| CN212584095U (en) | Bolt sleeve and engine with same | |
| CN214577407U (en) | High-efficient heat dissipation dry-type engine cylinder cover | |
| CN214014848U (en) | Die-casting or casting type radiator, air conditioner frequency converter and electronic equipment |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |