CN205714457U - The internal combustion engine of titanium aluminum compound structure - Google Patents
The internal combustion engine of titanium aluminum compound structure Download PDFInfo
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- CN205714457U CN205714457U CN201620352416.4U CN201620352416U CN205714457U CN 205714457 U CN205714457 U CN 205714457U CN 201620352416 U CN201620352416 U CN 201620352416U CN 205714457 U CN205714457 U CN 205714457U
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Abstract
The internal combustion engine of a kind of titanium aluminum compound structure, including piston outer wall and inwall core, is characterized in that: described piston outer wall ecto-entad is followed successively by ceramic layer, titanium coating, aluminium alloy layer.Fundamentally solving the problems such as available engine piston intensity is low, service life is short, noise is big, it has the advantages such as production efficiency height, length in service life.
Description
Technical field
This utility model belongs to internal combustion engine and manufactures field, and the internal combustion engine of a kind of titanium aluminum compound structure, it is primarily adapted for use in high-power engine.
Background technology
In internal combustion engine (gasoline engine, diesel engine, the general designation of gas engine), piston is referred to as " heart " of internal combustion engine, it is one and bears repeatedly the critical movements part of alternate load under high temperature, high pressure friction, is one of maximum part of working strength, and residing working environment is the most severe.Internal combustion engine top contacts with high temperature, high-pressure gas, and operating temperature is high, and thermic load is big;Its skirt section contacts with cylinder wall, is in high-speed motion state, poor lubrication.General top land temperature is up to more than 300 DEG C, according to different types, operating pressure 3MPa ~ 15MPa, average translational speed 6m/s to 15m/s.Therefore require piston material possess following some: there is elevated temperature strength, smaller thermal coefficient of expansion to make has suitable gap in all cases and reduces the noise that machine runs between piston and cylinder, heat absorptivity is poor, heat conductivity is good, density is little, to reduce quality and the inertia force of motion of piston, there is good corrosion-resistant, wear-resisting and low-friction coefficient, reduce friction loss and increase the service life.
Utility model content
The purpose of this utility model is to provide the internal combustion engine of a kind of titanium aluminum compound structure, fundamentally solves the problems such as available engine piston intensity is low, service life is short, noise is big, and it has the advantages such as production efficiency height, length in service life.
For achieving the above object, this utility model provides following technical scheme: the internal combustion engine of this aluminum compound structure includes piston outer wall and inwall core, is characterized in that: described piston outer wall ecto-entad is followed successively by ceramic layer, titanium coating, aluminium alloy layer.
Described ceramic layer is selected from titanium nitride or titanium carbide or titanium carbonitride or tungsten carbide.
This utility model additionally provides the manufacture method of the internal combustion engine of a kind of titanium aluminum compound structure, is characterized in that, comprises the following steps:
Step 1) makes titanium disc, and after tubular is lived in the stretching of hydraulic press drawing die, negative drawing piston top concave arc is cheated, and obtains piston blank；
Step 2) on lathe, process end face；
Step 3) is blown sand at barrel inner surface, hot-dip aluminizing；
Step 4) makes castingin inwall core；
Step 5) built-up piston blank and core；
After step 6) cast aluminum alloys inwall, machining piston；
Surface is polished by step 7), ion plating ceramic membrane, gets product.
Described ceramic membrane is selected from titanium nitride or titanium carbide or titanium carbonitride or tungsten carbide.
The beneficial effects of the utility model: density 4.51g/cm of titanium alloy3, quality is 1.67 times of aluminium alloy, is the 60% of cast iron；Intensity is aluminium alloy 3 ~ 4 times, is 1.5 times of cast iron；Under conditions of High Temperature High Pressure, titanium aluminum compound structure has great advantage than aluminium alloy and cast iron.Titanium alloy high-temperature intensity is better than aluminium alloy and cast iron, and the coefficient of expansion is low, and at 2.4*10^-9/ DEG C, the aluminum alloy heat coefficient of expansion is at 1.881*10^-5/ DEG C, and cast iron is at 1.2*10^-5/ DEG C.Titanium aluminum compound structure is used for manufacturing internal combustion engine, can make up aluminium alloy, casting iron deficioncy.Titanium aluminum compound structure piston can improve piston intensity, loss of weight 50%, decrease inertia force, improves heat resistanceheat resistant load-bearing capacity, can bear higher explosion pressure, can improve power per liter.Power per liter (kw/l) embodies Engine Quality height and is primarily to see dynamic property and economy, say, that electromotor to have preferable power, good acceleration and relatively low Fuel Consumption.Titanium aluminum is combined skirt, can compensate uneven thermal deformation, it is possible to quickly passed by the heat of top land；Cylinder prepareding gap between skirt section and cylinder sleeve is little, and steering capability is the best, reduces noise.Piston can obtain excellent metal ceramic surface corrosion-resistant, anti abrasive by technical finesse.Blow sand at barrel inner surface, hot-dip aluminizing, it is simple to imbedding aluminum alloy internal layer titanium is firmly combined with aluminium alloy compound layer.Cost is 256 yuan, and market price is 700 yuan, and rate of gross profit is up to 50%.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this utility model outer wall；
Fig. 2 is the sectional structure schematic diagram of this utility model core.
Description of reference numerals: 1 piston outer wall, 2 concave arc holes, 3 pin-and-holes, 4 cores.
Detailed description of the invention
Below in conjunction with Fig. 1 ~ 2, describe content of the present utility model in detail by specific embodiment.The internal combustion engine of this titanium aluminum compound structure includes that piston outer wall ecto-entad is followed successively by ceramic layer, titanium coating, aluminium alloy layer with concave arc hole 2 and the piston outer wall 1 of pin-and-hole 3 and the inwall core 4 that matches with piston outer wall.Ceramic layer is selected from titanium nitride or titanium carbide or titanium carbonitride or tungsten carbide.
The manufacture method of the internal combustion engine of this titanium aluminum compound structure, comprises the following steps:
Step 1) makes the titanium disc of 300mm*300mm, and after tubular is lived in the stretching of hydraulic press drawing die, negative drawing piston top concave arc is cheated, and obtains piston blank；
Step 2) get on the bus planar end surface at lathe；
Step 3) is blown sand at barrel inner surface, hot-dip aluminizing；
Step 4) makes castingin inwall core；
Step 5) built-up piston blank and core；
After step 6) cast aluminum alloys inwall, machining piston；
Surface is polished by step 7), ion plating ceramic membrane, gets product.Ceramic membrane is selected from titanium nitride or titanium carbide or titanium carbonitride or tungsten carbide.
Claims (2)
1. an internal combustion engine for titanium aluminum compound structure, including piston outer wall and inwall core, it is characterised in that: described piston outer wall ecto-entad is followed successively by ceramic layer, titanium coating, aluminium alloy layer.
The internal combustion engine of titanium aluminum compound structure the most according to claim 1, it is characterised in that: described ceramic layer is selected from titanium nitride or titanium carbide or titanium carbonitride or tungsten carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620352416.4U CN205714457U (en) | 2016-04-25 | 2016-04-25 | The internal combustion engine of titanium aluminum compound structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620352416.4U CN205714457U (en) | 2016-04-25 | 2016-04-25 | The internal combustion engine of titanium aluminum compound structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714457U true CN205714457U (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620352416.4U Active CN205714457U (en) | 2016-04-25 | 2016-04-25 | The internal combustion engine of titanium aluminum compound structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205714457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804881A (en) * | 2016-04-25 | 2016-07-27 | 沈阳和世泰钛金属应用技术有限公司 | Internal combustion engine piston of titanium-aluminum composite structure |
-
2016
- 2016-04-25 CN CN201620352416.4U patent/CN205714457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804881A (en) * | 2016-04-25 | 2016-07-27 | 沈阳和世泰钛金属应用技术有限公司 | Internal combustion engine piston of titanium-aluminum composite structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Song Honghai Inventor after: Zhong Jun Inventor after: Yan Donghui Inventor before: Song Honghai Inventor before: Zhong Jun Inventor before: Yan Donghui |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: 110000 25-3, Guangchang Road, Shenhe District, Liaoning, Shenyang, China 3-3-2 Patentee after: Yan Gengxu Address before: Shenyang City, Yu Tuo, Liaozhong County, Liaoning Province town of Taiping Village 110206 Patentee before: SHENYANG HESHITAI TITANIUM METAL APPLICATION TECHNOLOGY CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170223 Address after: Hunnan District of Shenyang City, Liaoning province 110000 new long street, room 105 No. 10-1 Patentee after: Shenyang Titanium Equipment Manufacturing Co., Ltd. Address before: 110000 25-3, Guangchang Road, Shenhe District, Liaoning, Shenyang, China 3-3-2 Patentee before: Yan Gengxu |