CN2563319Y - Internal combustion engine piston - Google Patents
Internal combustion engine piston Download PDFInfo
- Publication number
- CN2563319Y CN2563319Y CN 02267893 CN02267893U CN2563319Y CN 2563319 Y CN2563319 Y CN 2563319Y CN 02267893 CN02267893 CN 02267893 CN 02267893 U CN02267893 U CN 02267893U CN 2563319 Y CN2563319 Y CN 2563319Y
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- hole
- internal combustion
- piston body
- 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
Links
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to the motive power machine technical field, comprising a piston body, wherein the piston body has the upper part provided with a piston ring groove and the middle part provided with a pin hole; a piston body skirt arranged on the lower part of the piston ring groove is provided with an oil storage groove and a skirt window hole; both ends of the piston pin hole are provided with an oil return hole. The cooling and the lubricating oil films are evenly distributed, thereby the utility model has the advantages of shortening the back flow distance of the lubricating oil, reducing the friction surface and eliminating the carbon deposit, along with simple process, low cost and clean exhaust; the utility model is suitable for internal combustion engines.
Description
Technical field
The present invention relates to the dynamic power machine technical field, be specifically related to a kind of internal combustion engine.
Background technique
At present, similar piston adopts smooth complete skirt section structure, and the pin-and-hole outlet end does not have any eyelet.Existing piston technology makes power of IC engine loss 20% for full skirt cooperates with cylinder; It is barrel-shaped that the skirt section is, and adopts special plane to make, and piston material consumption is many, the cost of production height; The pin-and-hole outlet belongs to the High Temperature High Pressure district, easily causes lubricating oil carry-over and gas leakage; As patent name is " prolonging the motor piston in working life ", notification number is 2423415, its major character is for boring a plurality of tapered blind hole and minority conical through-hole in existing piston skirt, this structure, rubbing surface is big, cooling and lubricant film skewness, the manufacturability in burr-drill hole is relatively poor on cylindrical body simultaneously, is not easy to implement.
Summary of the invention
The purpose of this utility model is to provide a kind of cooling and lubricant film to be evenly distributed, and shortens lubricant oil reflux process, the face that reduces friction, and technology is simple, cost is low, removing carbon, the internal combustion engine of cleaning discharging.
To achieve these goals, the technical solution of the utility model has piston ring groove on piston body top, and the piston body middle part is provided with pin-and-hole, has oil storage tank and skirt section fenestra on the piston body skirt section of piston ring groove bottom.Be provided with spill port at the piston pin hole two ends.
Described skirt section fenestra is a through hole.
As further improvement of the utility model, described skirt section fenestra is a blind hole.
The utility model adopts technique scheme, has piston ring groove on piston body top, and the piston body middle part is provided with pin-and-hole, has oil storage tank and skirt section fenestra on the piston body skirt section of piston ring groove bottom, is provided with spill port at the piston pin hole two ends.In pin-and-hole, offer spill port, make wrist pin enough be cooled off and lubricate; Can improve the working life of wrist pin.Piston body skirt section design multiple tracks oil storage tank makes the piston in working order all the time can oil starvation, thereby tension cylinder performance and cold-start performance are quite outstanding.The skirt section fenestra has guaranteed that piston and cylinder have obtained best heat radiation and cooling, machine oil oil return stroke is extremely short simultaneously, oil film is little to the reaction force of piston ring, do not occur scurrying on the machine oil and gas leak phenomenon so can not cause piston ring to suspend, reach removing carbon, reduce engine oil consumption, prolong oil life and reduce discharging.Piston and cylinder friction fit face have reduced 40%-50%, and friction loss reaches minimum level, improve complete machine power 20-35%.Offering spill port in the pin-and-hole makes wrist pin obtain enough coolings and lubricated; Can improve the working life of wrist pin; The skirt section window has guaranteed that piston obtains best heat radiation and cooling, and machine oil oil return stroke is extremely short simultaneously, and oil film is little to the reaction force of piston ring, so phenomenon can not occur scurrying on the machine oil; Because the combination of skirt section fenestra and spill port, make the disappearance of key seat High Temperature High Pressure oil film district, on the machine oil there be not play power herein, so the piston oil slot carbon deposit declines to a great extent, and oil ring functional reliability and working life are improved.Piston mass alleviates 10-30%, and to-and-fro motion inertia is low, reaches material-saving and reduces the mechanical load of crankshaft-link rod group and the purpose of counterweight.The piston machine working area reduces, and has improved workpiece yield rate 3-5%
Description of drawings
Fig. 1 shows the utility model embodiment plan view;
Fig. 2 shows the side view of the utility model embodiment Fig. 1
Fig. 3 shows the A-A of the utility model embodiment Fig. 1 to sectional view;
Embodiment
The utility model comprises piston body, have piston ring groove 3 on piston body top, the piston body middle part is provided with pin-and-hole 4, has oil storage tank 2 and skirt section fenestra 1 on the piston body skirt section of piston ring groove 3 bottoms, skirt section fenestra 1 is a through hole, is provided with spill port 5 at piston pin hole 4 two ends.Make wrist pin enough be cooled off and lubricate; Can improve the working life of wrist pin.Piston body skirt section design multiple tracks oil storage tank 2 makes the piston in working order all the time can oil starvation, thereby tension cylinder performance and cold-start performance are quite outstanding.Skirt section fenestra 1 has guaranteed that piston and cylinder have obtained best heat radiation and cooling, be that machine oil oil return stroke is extremely short simultaneously, oil film is little to the reaction force of piston ring, do not occur scurrying on the machine oil and gas leak phenomenon so can not cause piston ring to suspend, reach removing carbon, reduce engine oil consumption, prolong oil life and reduce discharging.Piston and cylinder friction fit face have reduced 40%-50%, and friction loss reaches minimum level, improve complete machine power 20-35%.Offering spill port in the pin-and-hole makes wrist pin obtain enough coolings and lubricated; Can improve the working life of wrist pin; The skirt section window has guaranteed that piston obtains best heat radiation and cooling, and machine oil oil return stroke is extremely short simultaneously, and oil film is little to the reaction force of piston ring, so phenomenon can not occur scurrying on the machine oil; Because the combination of skirt section fenestra 1 and spill port 5 makes key seat High Temperature High Pressure oil film district disappear, on the machine oil there be not play power herein, so piston oil slot 2 carbon deposits decline to a great extent, and oil ring functional reliability and working life are improved.Piston mass alleviates 10-30%, and to-and-fro motion inertia is low, reaches material-saving and reduces the mechanical load of crankshaft-link rod group and the purpose of counterweight.The piston machine working area reduces, and has improved workpiece yield rate 3-5%.
Certainly, skirt section described in the utility model fenestra 1 also can be a blind hole.
Claims (4)
1, a kind of internal combustion engine comprises piston body, and piston body top has piston ring groove (3), and the piston body middle part is provided with pin-and-hole (4), it is characterized in that: have oil storage tank (2) and skirt section fenestra (1) on the piston body skirt section of piston ring groove (3) bottom.
2, internal combustion engine according to claim 1 is characterized in that: be provided with spill port (5) at piston pin hole (4) two ends.
3, internal combustion engine according to claim 1 is characterized in that: described skirt section fenestra (1) is a through hole.
4, internal combustion engine according to claim 1 is characterized in that: described skirt section fenestra (1) is a blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267893 CN2563319Y (en) | 2002-06-27 | 2002-06-27 | Internal combustion engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267893 CN2563319Y (en) | 2002-06-27 | 2002-06-27 | Internal combustion engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563319Y true CN2563319Y (en) | 2003-07-30 |
Family
ID=33733397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267893 Expired - Fee Related CN2563319Y (en) | 2002-06-27 | 2002-06-27 | Internal combustion engine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563319Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815856B (en) * | 2007-08-13 | 2012-05-30 | 费德罗-莫格尔公司 | Piston with a skirt having oil flow slots |
| CN103403407A (en) * | 2011-03-01 | 2013-11-20 | 马勒国际公司 | Piston for an internal combustion engine |
-
2002
- 2002-06-27 CN CN 02267893 patent/CN2563319Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815856B (en) * | 2007-08-13 | 2012-05-30 | 费德罗-莫格尔公司 | Piston with a skirt having oil flow slots |
| CN103403407A (en) * | 2011-03-01 | 2013-11-20 | 马勒国际公司 | Piston for an internal combustion engine |
| CN103403407B (en) * | 2011-03-01 | 2016-11-16 | 马勒国际公司 | Internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4379515B2 (en) | Internal combustion engine | |
| US20100224143A1 (en) | Oil spray lubrication and cooling device for a variable compression ratio engine | |
| JP6581736B2 (en) | Twin crankshaft engine | |
| CN2260173Y (en) | Piston element with automatic lubricating and clearance adjusting device | |
| CN2563319Y (en) | Internal combustion engine piston | |
| CN201265459Y (en) | Piston of 1.3L petrol engine | |
| CN202578934U (en) | Automobile engine piston | |
| CN202081951U (en) | Oil cooling system used for cooling four-stroke engine | |
| CN205908329U (en) | High -efficient lubricating system of single cylinder air -cooled diesel engine | |
| CN212055482U (en) | Engine connecting rod | |
| CN2866898Y (en) | Vehicle air compressor self-cooling device | |
| CN204677309U (en) | A kind of steel piston with cooling oil chamber | |
| CN2680863Y (en) | Circling equal pressure lubricating structure in cylinder of reciprocating piston type engine | |
| CN2233987Y (en) | Internal combustion engine piston with fine lubrication function | |
| CN202220673U (en) | Engine piston | |
| CN2199318Y (en) | High-sealed piston cylinder device | |
| CN2630572Y (en) | Piston | |
| CN1948735A (en) | Cylinder of internal combustion engine | |
| CN202746029U (en) | Highly sealed aluminum piston with oil storage circular groove | |
| CN2881122Y (en) | Internal combustion engine cylinder liner | |
| CN204961099U (en) | Prevent that piston pin lacks diesel engine piston that round pin was stung to oil | |
| CN202250391U (en) | Novel lateral-pressure-free internal combustion engine with high compression ratio | |
| CN214118342U (en) | Engine cylinder body structure of diesel vehicle | |
| CN2833140Y (en) | Cylinder of internal combustion engine | |
| CN2743555Y (en) | Internal combustion engine |
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 |