CN201901696U - High-silicon rare earth aluminum alloy cylinder body of automobile engine - Google Patents
High-silicon rare earth aluminum alloy cylinder body of automobile engine Download PDFInfo
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- CN201901696U CN201901696U CN2010205599469U CN201020559946U CN201901696U CN 201901696 U CN201901696 U CN 201901696U CN 2010205599469 U CN2010205599469 U CN 2010205599469U CN 201020559946 U CN201020559946 U CN 201020559946U CN 201901696 U CN201901696 U CN 201901696U
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- rare earth
- aluminum alloy
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Abstract
The utility model provides a high-silicon rare earth aluminum alloy cylinder body of an automobile engine, which solves the problems of complex manufacturing process, relatively high manufacturing cost and poor lubrication effect in operation of the existing cylinder body of the automobile engines as the inner wall of a cylinder barrel needs to cast a cylinder jacket or cover a layer of wear-resistant material, and is characterized in that: the cylinder body and the cylinder barrel as well as the inner wall of the cylinder barrel are an integrated structure cast by a high-silicon rare earth aluminum alloy material, and heat radiating fins are arranged at the periphery of the outer side of the cylinder body. The high-silicon rare earth aluminum alloy cylinder body has the following beneficial effects: the cylinder jacket does not need to be additionally arranged, and the inner wall of the cylinder barrel does not need to be additionally provided with a plating layer; a thin-walled cylinder barrel can be realized; the weight of the whole cylinder body is reduced, and the heat radiating area is increased; the whole cylinder body has good heat radiating effect; an oil film can be formed on the inner wall of the cylinder barrel in operation; the frictional resistance can be reduced; the lubricating property can be improved; the occurrence of cylinder explosion can be prevented; and the production and imbedding-casting links of the cylinder sleeve in traditional technology are eliminated; therefore, the high-silicon rare earth aluminum alloy cylinder body has a simple manufacturing process, needs relatively low manufacturing cost, and realizes high reliability in operation.
Description
Technical field
The utility model belongs to technical field of automobile engine, particularly high silicon rare earth aluminium alloy automobile engine cylinder-body.
Background technology
The mankind enter 21 century, and automotive industry is faced with the more and more severeer energy, public hazards and safety three big problems, and countries in the world government has also successively worked out about Energy conservation, and exhaust gas emission reduces many rules such as noise and safety control.Concerning automotive industry, its save energy, reducing the most effective way of motor vehicle exhaust is exactly the quality that alleviates automobile self, and the main path of minimizing car mass is to make the automotive material lightweight.According to the pertinent data introduction, the every reduction of car mass 100kg, oil consumption just can reduce about 0.7L.Want to alleviate automotive dead weight, just must adopt light material, and aluminum alloy materials is the first-selection in the light material, on a large amount of vehicles so all-aluminium engine is used.And automobile engine cylinder-body is a part the heaviest on the motor car engine, thereby use aluminum alloy materials making engine cylinder-body to become a kind of trend, all-aluminium engine cylinder body as present french car has reached 45%, and the new V6 engine cylinder-body of Chrysler all uses aluminum alloy materials.But, because the frictional force that the inner wall of cylinder of cylinder body produced in the time of will bearing high pressure gas and pistons work and because the thermal stresses that high-temperature gas causes, although adopt the all-aluminium engine cylinder body, also need be at the compound cylinder sleeve of the inner wall of cylinder of cylinder body with higher-strength and fatigue strength, therefore, the joint portion of cylinder body and cylinder sleeve still belongs to two kinds of metals, cylinder body and cylinder sleeve are fitted not tight when causing high temperature owing to two kinds of expansion of metal coefficients are different, can make cylinder sleeve produce the phenomenon of distortion in the course of the work, simultaneously, also because two kinds of metal heat transfer coefficient differences, the cylinder body thermal stresses is increased, the reliability of engine operation is reduced, and the cylinder body upper surface at cylinder sleeve position also is two kinds of metals, since two kinds of metal hardness differences, the difficult planeness that guarantees the cylinder body upper surface in follow-up machining.In order to be easy to processing, guarantee the planeness of cylinder body upper surface, the CN02244694.X of Chongqing Lifan Industry (Group) Co. Ltd. patent disclosure " a kind of cylinder body ", the disclosed a kind of cylinder body of this utility model, be to cover the layer of aluminum alloy in the outside of cylinder sleeve, feature is with height of cylinder head bonding surface sinking, and the aluminium alloy of the same height of covering one deck, the cylinder head bonding surface that makes cylinder body is a kind of metal, machining is easy, but the joint portion of its cylinder body and cylinder sleeve still belongs to two kinds of metals, belongs to the structure of composite cylinder jacket on the inner wall of cylinder of all-aluminium engine cylinder body equally.
Suzhou MingZhi Science Co., Ltd's CN200810136556.8 patent application discloses a kind of " high-silicon aluminum alloy cylinder sleeve and imbedding process thereof ", the disclosed aluminium alloy cylinder sleeve of this application for a patent for invention, the employing silumin is made, compare with adopting Cast iron liner, alleviated the weight of engine or compressor and therefore reduced automobile fuel consumption.The imbedding process of the disclosed aluminium alloy cylinder sleeve of this utility application, by activation treatment is carried out on the cylinder sleeve surface, make cylinder sleeve reach the crystal boundary combination with combining of cylinder matrix by original mechanical bond, but adopt this technology, the just cylinder sleeve of producing carries out activation treatment to the cylinder sleeve surface then, and castingin is on cylinder body again, complex process not only, the weight of the engine that is alleviated is also very limited.
The conjugation that belongs to two kinds of existing cylinder sleeves of metal and cylinder body for the joint portion that solves cylinder body and cylinder sleeve is low, influence the engine operation reliability problems, the no cylinder sleeve cylinder of cylinder sleeve in the cylinder has appearred omitting in prior art, " a kind of automobile air conditioner compressor " as the CN03256012.5 of Chunhui Group Co., Ltd. Zhejiang patent disclosure, the disclosed a kind of automobile air conditioner compressor of this utility model comprises body, be provided with cylinder in the body, cylinder and described body are an integral body, the material of cylinder and body is silumin, in cylinder, omitted steel bushing, because cylinder and body have all adopted the silumin material, have alleviated the weight of automobile air conditioner compressor.But, this utility model provides the cylinder of automobile air conditioner compressor, and the concrete composition and the content of unexposed described silumin, and general silumin can not reach the desired intensity of automobile engine cylinder-body, hardness and wear resisting property, even if the cylinder of automobile air conditioner compressor, in order further to increase intensity, hardness and the wear resisting property on the surface of cylinder, this utility model is pointed out to need to be covered with one deck high-abrasive material on the surface of cylinder, as ultra-fine composite ceramic material.
The Chongqing magnesium industry limited CN03250171.4 of department of scientific and technological share disclosed " aluminium alloy engine cylinder body " has provided more specifically technical scheme, this aluminium alloy engine cylinder body comprises cylinder body and cylinder barrel structure, the inwall of its cylinder barrel is the composite bed structure, this composite bed is the alumina crystallites ceramic layer, and this alumina crystallites ceramic layer is that the method with differential arc oxidation is combined as a whole itself and alloy matrix aluminum securely.Said structure often is called as " ceramic cylinder ", cylinder body equally is to make with aluminium alloy, inwall at cylinder barrel is covered with one deck ceramic layer then, essence is to replace Cast iron liner or high-silicon aluminum alloy cylinder sleeve with the inner wall of cylinder that methods such as coating or meltallizing are handled the aluminum alloy materials cylinder, to satisfy the requirement of engine cylinder light weight, high strength and good performance of heat dissipation.But adopt the method for described coating or meltallizing to handle cylinder inner wall, operation easier is bigger, and contaminate environment.
The applicant discloses " a kind of silumin and preparation method thereof " in the CN200810013125.2 patent, the silumin that adopts this patent to provide can directly be made the cylinder that does not need coating and cylinder sleeve, but directly the silumin material that provides with this patent is made engine cylinder-body, because Si may have grown into block or flaky fragility phase in the casting Al-Si alloy under natural growthing condition, reduce the intensity and the plasticity of silumin easily, because the inner wall of cylinder and the piston contact surface frictional coefficient of cylinder body are bigger in the cylinder body work, in order to increase lubricant effect, the consumption of lubricating oil is bigger in the work, in case lack lubricating oil, the easy detonation of cylinder body, thereby it need be changed over favourable form, improve the wear resisting property of cylinder body, could more help making the cylinder body of the better motor car engine of performance.
Summary of the invention
Technical problem to be solved in the utility model is, overcome the deficiencies in the prior art part, providing neither needs cylinder sleeve, do not need coating yet, make the whole a kind of high silicon rare earth aluminium alloy automobile engine cylinder-body that also has high strength and better wear resisting property for commaterial simultaneously of automobile engine cylinder-body.
The technical scheme that the utility model adopted is to be provided with cylinder barrel on cylinder body, and described cylinder body and cylinder barrel and inner wall of cylinder are for adopting with a kind of high silicon rare earth aluminum alloy material cast-in-block integrative-structure.
Described high silicon rare earth aluminium alloy by weight percentage, it is composed as follows:
Silicon 19.0～21.0%,
Copper 3.5～4.3%,
Magnesium 0.5～0.7%,
Iron 0.82～0.92%,
Zinc 0.55～0.70%,
Manganese 0.2～0.4%,
Nickel 0.03～0.08%,
Titanium 0.1～0.2%,
Bismuth 0.2～0.4%,
Lanthanum 0.2～0.35,
Molybdenum 0.3～0.45%,
Impurity≤0.06%,
Surplus is an aluminium.
Described cylinder barrel is the thin-walled cylinder barrel.
Periphery is equipped with the heat radiation wing around the described cylinder body outside.
Be provided with radiating groove at described cylinder barrel periphery.
Described cylinder barrel is the thick thin-walled cylinder barrel of 7～9mm.
The utility model compared with prior art has following beneficial effects:
(1) the light and perfect heat-dissipating of cylinder body overall weight, because cylinder body and cylinder barrel and inner wall of cylinder are with a kind of high silicon rare earth aluminum alloy material, neither need other castingin cylinder sleeve, do not need coating yet, the performance of the high silicon rare earth aluminium alloy that is structure as a whole with the monoblock casting of a kind of high silicon rare earth aluminum alloy material owing to employing simultaneously and is adopted, can realize the thin-walled cylinder barrel, the radiating groove slotted eye that makes the cylinder barrel periphery be provided with can be bigger, promptly alleviated the overall weight of cylinder body, increased area of dissipation again, periphery is equipped with the heat radiation wing around the cylinder body outside in addition, makes cylinder body integral body have better heat radiating effect, and therefore also can reduce automobile fuel consumption;
(2) frictional coefficient is little, the wear resistance height, and its frictional coefficient is less than 3 times of cast iron; Because the performance of the high silicon rare earth aluminium alloy that is adopted, inner wall of cylinder can form oil film in the work, can reduce friction resistance, improves lubricity, prevents the generation of detonation;
(3) simple in structure, castibility is good, because cylinder body and cylinder barrel are with a kind of high silicon rare earth aluminum alloy material with inner wall of cylinder, also is easy to machining, can more easily guarantee the planeness of cylinder body upper surface;
(4) manufacturing process is simple, low cost of manufacture because cylinder body and cylinder barrel are with a kind of high silicon rare earth aluminum alloy material integral die-cast or low-pressure casting, has been saved the production and the castingin link of traditional technology cylinder sleeve, thereby manufacturing process is simple, the relatively low and in service reliability height of manufacturing cost.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 2.
Among the figure:
1. cylinder body, 2. cylinder barrel, 3. heat radiation wing, 4. radiating groove, 5. inner wall of cylinder.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in drawings, the technical solution adopted in the utility model is to be provided with cylinder barrel 2 on cylinder body 1, described cylinder body 1 and cylinder barrel 2 and inner wall of cylinder 5 are for adopting with a kind of high silicon rare earth aluminum alloy material cast-in-block integrative-structure, this structure makes the utility model neither need other castingin cylinder sleeve, also need not increase coating on inner wall of cylinder 5, cylinder body integral body has consistent higher intensity, hardness and wear resisting property;
Described high silicon rare earth aluminium alloy by weight percentage, it is composed as follows:
Silicon 19.0～21.0%,
Copper 3.5～4.3%,
Magnesium 0.5～0.7%,
Iron 0.82～0.88%,
Zinc 0.55～0.70%,
Manganese 0.2～0.4%,
Nickel 0.03～0.08%,
Titanium 0.1～0.2%,
Bismuth 0.2～0.4%,
Lanthanum 0.3～0.35,
Cerium 0.4～0.45%,
Impurity≤0.09%,
Surplus is an aluminium.
The cylinder body that adopts above-mentioned high silicon rare earth aluminum alloy material integral die-cast or whole low-pressure casting to be structure as a whole has higher wear resistance and lower frictional coefficient, can guarantee that cylinder inner wall bears high pressure gas and frictional force;
Be structure as a whole and the performance of the high silicon rare earth aluminium alloy that adopted owing to adopt with a kind of high silicon rare earth aluminum alloy material integral die-cast or low-pressure casting, compare with automobile engine cylinder-body of the same type, the utility model can be realized the thin-walled cylinder barrel, with Mazda V6 four-cylinder automobile engine cylinder body is example, the cylinder barrel wall thickness of traditional all-aluminium engine cylinder body is 10～11mm, and the wall thickness of cylinder barrel 2 described in the utility model is 7～9mm;
The utility model embodiment is not subjected to the restriction of engine cylinder-body number, can be single cylinder, four cylinders, six cylinders or 8 cylinders.
Periphery is equipped with heat radiation wing 3 around in described cylinder body 1 outside, and described heat radiation wing 3 promptly can play the effect of heat radiation, also plays the effect of stiffening web simultaneously;
Be provided with radiating groove 4 at described cylinder barrel 2 peripheries, because cylinder barrel 2 is the thin-walled cylinder barrel, can make the slotted eye of the cylinder barrel 2 peripheral radiating grooves 4 that are provided with bigger, thereby increased area of dissipation in the cylinder body effective stroke, make and the utlity model has better heat dispersion, and therefore also can reduce automobile fuel consumption, described radiating groove 5 is blind groove, the degree of depth of this blind groove decides according to the effective stroke of cylinder barrel 2, the setting of this radiating groove, promptly can play the effect of heat radiation, can also alleviate the gross weight of cylinder body, and therefore also can reduce automobile fuel consumption.
The utility model adopts the commaterial monoblock casting, and technology is simple, and manufacturing cost is relatively low.
Claims (5)
1. one kind high silicon rare earth aluminium alloy automobile engine cylinder-body is provided with cylinder barrel (2) on cylinder body (1), it is characterized in that, described cylinder body (1) and cylinder barrel (2) and inner wall of cylinder (5) are for adopting with a kind of high silicon rare earth aluminum alloy material cast-in-block integrative-structure.
2. according to the described a kind of high silicon rare earth aluminium alloy automobile engine cylinder-body of claim 1, it is characterized in that described cylinder barrel (2) is the thin-walled cylinder barrel.
3. according to the described a kind of high silicon rare earth aluminium alloy automobile engine cylinder-body of claim 1, it is characterized in that periphery is equipped with heat radiation wing (3) around described cylinder body (1) outside.
4. according to the described a kind of silumin automobile engine cylinder-body of claim 1, it is characterized in that, be provided with radiating groove (4) at described cylinder barrel (2) periphery.
5. according to the described a kind of high silicon rare earth aluminium alloy automobile engine cylinder-body of claim 2, it is characterized in that described cylinder barrel (2) is the thick thin-walled cylinder barrel of 7～9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205599469U CN201901696U (en) | 2010-10-14 | 2010-10-14 | High-silicon rare earth aluminum alloy cylinder body of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205599469U CN201901696U (en) | 2010-10-14 | 2010-10-14 | High-silicon rare earth aluminum alloy cylinder body of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201901696U true CN201901696U (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205599469U Expired - Fee Related CN201901696U (en) | 2010-10-14 | 2010-10-14 | High-silicon rare earth aluminum alloy cylinder body of automobile engine |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949337A (en) * | 2010-10-14 | 2011-01-19 | 营口华润有色金属制造有限公司 | Automobile engine cylinder body made of high silicon rare earth aluminum alloy |
| CN104903630A (en) * | 2012-12-28 | 2015-09-09 | 株式会社理研 | Cylinder and piston ring assembly |
-
2010
- 2010-10-14 CN CN2010205599469U patent/CN201901696U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949337A (en) * | 2010-10-14 | 2011-01-19 | 营口华润有色金属制造有限公司 | Automobile engine cylinder body made of high silicon rare earth aluminum alloy |
| CN101949337B (en) * | 2010-10-14 | 2012-09-19 | 营口华润有色金属制造有限公司 | Automobile engine cylinder body made of high silicon rare earth aluminum alloy |
| CN104903630A (en) * | 2012-12-28 | 2015-09-09 | 株式会社理研 | Cylinder and piston ring assembly |
| CN104903630B (en) * | 2012-12-28 | 2017-03-15 | 株式会社理研 | Cylinder and the component of piston ring |
| US9644738B2 (en) | 2012-12-28 | 2017-05-09 | Kabushiki Kaisha Riken | Combination of cylinder and piston ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20121014 |