CN2665363Y - Petrol engine piston bottom double hole oil spout cooling device - Google Patents
Petrol engine piston bottom double hole oil spout cooling device Download PDFInfo
- Publication number
- CN2665363Y CN2665363Y CN 200320125905 CN200320125905U CN2665363Y CN 2665363 Y CN2665363 Y CN 2665363Y CN 200320125905 CN200320125905 CN 200320125905 CN 200320125905 U CN200320125905 U CN 200320125905U CN 2665363 Y CN2665363 Y CN 2665363Y
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- crankcase
- right crankcase
- oil spout
- 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.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a gasoline engine piston bottom double-hole oil injection cooling device, which increases piston cooling ways and improves the piston surface temperature distribution. The technical proposal is that a cylinder cover is embedded on a cylinder body; the cylinder is fixed on a crankcase through bolts; two apposite oil injection holes that are pointed to the back part of the piston are arranged on a right crankcase; the oil injection holes are arranged along the centerline of the cylinder, between the combination surface of the right crankcase and the cylinder body, and a crankshaft bearing base. Two oil inlet holes are arranged on the cylinder cover of the cylinder body. The utility model increases piston cooling ways and improves the piston surface temperature distribution, which can greatly improve the thermal stress conditions of the piston, increase the working reliability of the piston, and is conducive to raising the overall performance of the engine.
Description
Technical field
The utility model relates to a kind of mini four-stroke gasoline engine, in particular, relates to the single-cylinder four-stroke piston of gasoline engine bottom diplopore oil spout cooling unit that a kind of motorcycle is used.
Background technique
Piston is bearing very high heat load in engine operation, for the regular gasoline machine, the heat that flows into piston head mainly sheds by the heat conduction between piston and the piston ring, between piston ring and the cylinder wall, another part is spread out of by piston skirt, piston pin boss, and remaining then passes to air in the crankcase and the machine oil that splashes through the back side of piston head.Along with the raising of motor reinforcing degree, the heat load of piston is too high, and therefore the reliability decrease of work, is necessary further to strengthen the cooling of piston.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of approach that can increase the piston heat radiation to be provided, having improved the piston of gasoline engine bottom diplopore oil spout cooling unit of the temperature distribution of piston face.
The utility model piston of gasoline engine bottom diplopore oil spout cooling unit, be achieved by following technical proposals, this programme comprises right crankcase, cylinder block and cylinder liner, described cylinder liner is embedded on the cylinder block, cylinder by bolt on crankcase, described right crankcase is provided with the nozzle opening at two sensing piston backs arranged side by side, described nozzle opening is between right crankcase cylinder block junction plane and crankshaft bearing seat, along the cylinder centerline setting, the cylinder liner of described cylinder block is provided with two oil transportation holes.
Described oil transportation hole is positioned at the cylinder liner piston back side.
The beneficial effects of the utility model are by adopting the method for piston base diplopore oil spout cooling, increased the approach of piston heat radiation, improved the temperature distribution of piston face, can significantly improve the thermal stress situation of piston, improve the reliability of pistons work, and help improving motor complete machine performance.
Description of drawings
Fig. 1 is the utility model cross-sectional view,
Fig. 2 is the utility model plan view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the utility model comprises right crankcase 1, cylinder block 2 and cylinder liner 3, cylinder liner 3 is a cast iron sleeve and is embedded on the cylinder block 2, and on crankcase, right crankcase 1 is provided with the nozzle opening 4 at two sensing piston backs arranged side by side by bolt for cylinder block 2; As shown in Figure 2, two nozzle openings are symmetrical arranged along cylinder centerline between right crankcase cylinder block junction plane 7 and crankshaft bearing seat 5, and the cylinder liner 3 of cylinder block is provided with two oil transportation holes 6.
Working principle is as follows: in engine working process, machine oil in the right crankcase sprays to the piston head back by nozzle opening under the effect of pressure, the machine oil of ejection by with the contacting of piston head back, take away a lot of heats, improved the thermal stress situation of piston greatly.
Claims (2)
1. piston of gasoline engine bottom diplopore oil spout cooling unit, right crankcase, cylinder block, cylinder liner, described cylinder liner are embedded on the cylinder block, cylinder by bolt on crankcase, it is characterized in that, described right crankcase is provided with the nozzle opening at two sensing piston backs arranged side by side, described nozzle opening is between right crankcase cylinder block junction plane and crankshaft bearing seat, and along the cylinder centerline setting, the cylinder liner of described cylinder block is provided with two oil transportation holes.
2. piston of gasoline engine according to claim 1 bottom diplopore oil spout cooling unit is characterized in that described oil transportation hole is positioned at the cylinder liner piston back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125905 CN2665363Y (en) | 2003-12-18 | 2003-12-18 | Petrol engine piston bottom double hole oil spout cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125905 CN2665363Y (en) | 2003-12-18 | 2003-12-18 | Petrol engine piston bottom double hole oil spout cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665363Y true CN2665363Y (en) | 2004-12-22 |
Family
ID=34349327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125905 Expired - Fee Related CN2665363Y (en) | 2003-12-18 | 2003-12-18 | Petrol engine piston bottom double hole oil spout cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665363Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470333A (en) * | 2013-09-30 | 2013-12-25 | 庄景阳 | Lubrication device of negative pressure control cylinder |
| CN104373240A (en) * | 2014-10-29 | 2015-02-25 | 力帆实业(集团)股份有限公司 | Lubrication structure for skirt section of inner piston of engine cylinder block |
-
2003
- 2003-12-18 CN CN 200320125905 patent/CN2665363Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470333A (en) * | 2013-09-30 | 2013-12-25 | 庄景阳 | Lubrication device of negative pressure control cylinder |
| CN104373240A (en) * | 2014-10-29 | 2015-02-25 | 力帆实业(集团)股份有限公司 | Lubrication structure for skirt section of inner piston of engine cylinder block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |