CN102536503A - Box body of small gasoline engine - Google Patents
Box body of small gasoline engine Download PDFInfo
- Publication number
- CN102536503A CN102536503A CN2012100300238A CN201210030023A CN102536503A CN 102536503 A CN102536503 A CN 102536503A CN 2012100300238 A CN2012100300238 A CN 2012100300238A CN 201210030023 A CN201210030023 A CN 201210030023A CN 102536503 A CN102536503 A CN 102536503A
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- casing
- box body
- cylinder body
- aluminum alloy
- cylinder
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a box body of a small gasoline engine. The box body is subjected to one-time molding and impression die-casting filling and comprises a crankshaft box body and a cylinder body, wherein a cast iron cylinder liner is not embedded into the cylinder body; the box body is made of an aluminum alloy material; and in the aluminum alloy material, alloy silicon accounts for 18 to 20 percent, and alloy copper accounts for 6 to 8 percent. The box body has the advantages of high wear resistance, high radiating performance and longer service life.
Description
Technical field
The present invention relates to a kind of petrol engine casing, relate in particular to a kind of put-put casing that is widely used in the forestry machinery.
Background technique
Cylinder body is widely used in all kinds of motors, is the indispensable strength member of motor.The structure of engine cylinder-body and quality are the principal elements that influences engine life and output power, in engine cylinder-body, adopt Cast iron liner at present, and the ratio of alloy silicon is 10%-12% in the employed aluminum alloy material of casing, and the ratio of alloyed copper is 3%-5%.The Cast iron liner quality that adopts is heavier, increases labor intensity, and the wearing and tearing of the Cast iron liner in the cylinder body are more serious; Cylindricity is not high; So cause engine housing not high aspect heat dispersion, waste gas emission standard, and be easy to generate pull-cylinder phenomena, directly influence the life-span of motor.
Summary of the invention
The present invention is in order to overcome the defective of existing technology, is to provide that a kind of wear resistance is high, heat dispersion is fast, can improve the put-put casing in working life.
Technological scheme of the present invention is: a kind of put-put casing, casing adopt the die casting of once-through die to fill, and described casing comprises crankcase body and cylinder body, in described cylinder body, does not embed Cast iron liner.
Wherein, the material that described casing adopts is an aluminum alloy, and the ratio of alloy silicon is 18%-20% in the described aluminum alloy material, and the ratio of alloyed copper is 6%-8%.
Wherein, described cylinder body adopts roll extrusion minute surface technology when fine finishing.
A kind of put-put casing of the present invention is owing to adopted above technological scheme; Casing adopts the die casting of once-through die to fill, and the ratio of alloy silicon is 18%-20% in the adjustment aluminum alloy material, and the ratio of alloyed copper is 6%-8%; Increased the wear-resisting property of casing, reduced wear; Do not adopt Cast iron liner because of cylinder body simultaneously, when the fine finishing cylinder sleeve, directly the cylinder head to aluminum alloy material adopts roll extrusion minute surface technology, guarantees the cylindricity precision height and the wear-resisting property of cylinder body, further improves the surface quality of cylinder body; Aspect heat radiation; Casing heat after the improvement passes through Cast iron liner is imported casing again by cylinder sleeve mode by original elder generation, changes into heat directly absorbs engine chamber through casing heat, by the machine fan heat is dissipated again; Heat energy distributes comparatively fast; Make the engine combustion room temperature reduce greatly, more stable because of the heat temperature of engine housing, reduced the hot shape coefficient of engine housing; Also reduced the degree of wear of cylinder body, too high for motor Yin Wendu and pull-cylinder phenomena that occur also obviously reduces; Aspect toxic emission, because of the adjustment that is improved of the employed material of engine housing and processing technology, aluminium alloy cylinder accuracy of manufacturing and surface quality are further improved, and have reduced the phenomenon of lubricant oil burning, and toxic emission reaches Europe III standard.
A kind of put-put casing of the present invention have wear resistance height, heat dispersion fast, can improve the advantage in working life.
Description of drawings
Fig. 1 is the structural representation of a kind of put-put casing of the present invention.
Fig. 2 is the cross-sectional view of A-A among Fig. 1.
Among the figure: the 1-crankcase body; The 2-cylinder body.
Embodiment
See also Fig. 1 and Fig. 2, the invention provides a kind of put-put casing, casing adopts the die casting of once-through die to fill, and described casing comprises crankcase body 1 and cylinder body 2, in described cylinder body 2, does not embed Cast iron liner.
Wherein, the material that described casing adopts is an aluminum alloy, and the ratio of alloy silicon is 18%-20% in the described aluminum alloy material, and the ratio of alloyed copper is 6%-8%.
Wherein, described cylinder body 2 adopts roll extrusion minute surface technology when fine finishing.
A kind of put-put casing of the present invention is owing to adopted above technological scheme; Casing adopts the die casting of once-through die to fill, and the ratio of alloy silicon is 18%-20% in the adjustment aluminum alloy material, and the ratio of alloyed copper is 6%-8%; Increased the wear-resisting property of casing, reduced wear; Do not adopt Cast iron liner because of cylinder body simultaneously, when the fine finishing cylinder sleeve, directly the cylinder head to aluminum alloy material adopts roll extrusion minute surface technology, guarantees the cylindricity precision height and the wear-resisting property of cylinder body, further improves the surface quality of cylinder body; Aspect heat radiation; Casing heat after the improvement passes through Cast iron liner is imported casing again by cylinder sleeve mode by original elder generation, changes into heat directly absorbs engine chamber through casing heat, by the machine fan heat is dissipated again; Heat energy distributes comparatively fast; Make the engine combustion room temperature reduce greatly, more stable because of the heat temperature of engine housing, reduced the hot shape coefficient of engine housing; Also reduced the degree of wear of cylinder body, too high for motor Yin Wendu and pull-cylinder phenomena that occur also obviously reduces; Aspect toxic emission, because of the adjustment that is improved of the employed material of engine housing and processing technology, aluminium alloy cylinder accuracy of manufacturing and surface quality are further improved, and have reduced the phenomenon of lubricant oil burning, and toxic emission reaches Europe III standard.
A kind of put-put casing of the present invention have wear resistance height, heat dispersion fast, can improve the advantage in working life.
What should explain at last is: above embodiment only in order to the explanation the present invention and and unrestricted technological scheme described in the invention; Therefore, although this specification has carried out detailed explanation to the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technological scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (3)
1. put-put casing is characterized in that: casing adopts the die casting of once-through die to fill, and described casing comprises crankcase body and cylinder body, in described cylinder body, does not embed Cast iron liner.
2. a kind of put-put casing according to claim 1 is characterized in that: the material that described casing adopts is an aluminum alloy, and the ratio of alloy silicon is 18%-20% in the described aluminum alloy material, and the ratio of alloyed copper is 6%-8%.
3. a kind of put-put casing according to claim 1 is characterized in that: described cylinder body adopts roll extrusion minute surface technology when fine finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100300238A CN102536503A (en) | 2012-02-12 | 2012-02-12 | Box body of small gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100300238A CN102536503A (en) | 2012-02-12 | 2012-02-12 | Box body of small gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536503A true CN102536503A (en) | 2012-07-04 |
Family
ID=46344309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100300238A Pending CN102536503A (en) | 2012-02-12 | 2012-02-12 | Box body of small gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536503A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539064A (en) * | 2009-04-08 | 2009-09-23 | 重庆三华工业有限公司 | Aluminum alloy engine crankcase without cylinder sleeve |
-
2012
- 2012-02-12 CN CN2012100300238A patent/CN102536503A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539064A (en) * | 2009-04-08 | 2009-09-23 | 重庆三华工业有限公司 | Aluminum alloy engine crankcase without cylinder sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |