CN104314700A - Engine piston ring - Google Patents
Engine piston ring Download PDFInfo
- Publication number
- CN104314700A CN104314700A CN201410537995.5A CN201410537995A CN104314700A CN 104314700 A CN104314700 A CN 104314700A CN 201410537995 A CN201410537995 A CN 201410537995A CN 104314700 A CN104314700 A CN 104314700A
- Authority
- CN
- China
- Prior art keywords
- ring
- gas
- frizing
- platform
- oil
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F5/00—Piston rings, e.g. associated with piston crown
Abstract
The invention provides an engine piston ring. A ring body is provided with a gas ring opening; an oil scraping cutting table is arranged on the outer side of the lower end of the ring body and surrounds the outer side of the lower end of the ring body, but the two ends of the oil scraping cutting table are stopped at positions close to the gas ring opening, namely the two ends of the oil scrapping cutting table are not communicated with the gas ring opening, and a small section of complete ring body is retained here to serve as a gas stop structure. The un-communicated air stop structure is designed between the gas ring opening and the oil scraping cutting table for isolating a gas leakage passage of the gas ring opening and the oil scraping cutting table, so that the gas leakage passages of gaseous rings are reduced, the gas leakage of the engine piston is effectively reduced, the sealing property of the piston ring is improved, the ventilation environment of a crankshaft box is improved, the engine oil degradation and pollution are prevented, and the service life of engine oil is prolonged.
Description
Technical field
The present invention relates to petrol engine, particularly piston ring structure.
Background technique
Engine piston ring is the metal ring entering piston groove inside for down, and its function is mainly seal in combustion gases and prevents piston air leakage excessive, strikes off the machine oil in cylinder holes in order to avoid consumption of lubricating oil is too high.Along with Modern Engine is to the pursuit of high power, low oil consumption, the burning pressure of explosion of motor, compression ratio improve constantly, and then propose more and more harsher requirement, in order to avoid piston air leakage exceeds standard to the sealability of piston ring.
Engine piston ring has twice or three roads, and general second gas ring should play sealing function in piston-ring packing, possesses certain frizing ability again.Therefore general second gas ring all designs a frizing in the lower end of ring cut platform, be also called nose shape angle, to make the machine oil scraped can take at Qie Tainei, avoid machine oil is altered and cause burn oil problem.See Fig. 2, it is all that state is led in milling that the frizing of the second gas ring of general design now cuts platform 2 at compression ring opening 1 place, and this structure mechanical processing technique is good.But the frizing that milling is led to cuts platform 2 make frizing cut leakage path that platform 2 forms piston ring together with compression ring opening 1, as shown in Figure 3, greatly reduces the sealability of piston ring, increases piston air leakage.
Summary of the invention
The invention provides a kind of engine piston ring reducing piston air leakage, the frizing for second gas ring is cut platform and is improved, and makes it effectively can realize the function that it scrapes machine oil, can realize again the reduction of compression ring leakage path.
The engine piston ring that the present invention proposes, it is provided with compression ring opening on ring body, has frizing cut platform at the lower end outside of ring body.Its improvement is: described frizing cuts the lower end outside of platform around ring body, but two ends terminate in the position close to compression ring opening, and namely frizing is cut between the two ends of platform and compression ring opening and disconnected, and retains a bit of complete ring body herein as air-block structure.
Compression ring opening and frizing are cut the air-block structure being designed between platform disconnect by the present invention, namely add not milling in man-hour lead to, the leakage path of platform is cut with its partition compression ring opening and frizing, the leakage path of compression ring is reduced, engine piston air loss effectively reduces, and improves the sealability of piston ring, improves crankcase ventilation environment, prevent lubricant deterioration and pollution, improve the working life of machine oil.Improve the sealability of firing chamber simultaneously, improve engine combustion efficiency, improve engine power, improve Fuel Economy.
By the contrast test at 1.6L petrol engine, piston ring of the present invention can make the maximum air leakage of this motor be decreased to 18L/min by 26L/min, realizes the reduction of piston air leakage, improves crankcase ventilation system environment.
Accompanying drawing explanation
Fig. 1 is the general assembly structural drawing of piston;
Figure 1A is the amplification assumption diagram of A portion second gas ring in Fig. 1;
Fig. 2 is that common second gas ring cuts the schematic diagram of platform and compression ring open communication at frizing;
Fig. 3 is the leakage path schematic diagram of common second gas ring
Fig. 4 is the structural representation of the second gas ring after the present invention improves
Fig. 5 is physical dimension schematic diagram of the present invention
In figure, 1-compression ring opening, 2-frizing cut platform, 3-air-block structure, 4-top compression ring, 5-second gas ring, 6-oil ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
See Fig. 1 and Figure 1A, common engine piston is all provided with top compression ring 4, second gas ring 5 and oil ring 6, generally designs a frizing in the ring lower end of second gas ring 5 and cut platform 2.Shown in composition graphs 4, the present invention is directed to the second gas ring 5 of piston ring, it remains the basic structure of compression ring, i.e. compression ring opening 1 on ring body, the lower end outside of ring body have around frizing cut platform 2, frizing is cut platform 2 and is adopted common nose shape to design.The compression ring opening 1 of the piston ring through improving and frizing are cut between platform 2 and are designed air-block structure 3, namely when Milling Machining frizing cuts platform, the two ends that frizing cuts platform terminate in the position close to compression ring opening, at this position reservation a bit of complete ring body, frizing is cut between the two ends of platform and compression ring opening to disconnect, become air-block structure 3, blocking-up compression ring opening 1 and frizing cut the leakage path of platform 2, to reduce the leakage path of second gas ring, improve the sealing function of piston ring, the piston air leakage of motor is effectively reduced, improves the environment of motor triton system.
As shown in Figure 5, its length L is 1 ~ 4mm to the preferred scheme of this air-block structure 3; And the connection rounding R between frizing otch 2 is 2 ~ 4mm.What make second gas ring keep frizing to cut platform scrapes functional oil, and in the gas leakage of compression ring opening sealed open.The milling process connecting rounding is good, can realize the production in enormous quantities of second gas ring.
Claims (4)
1. an engine piston ring, ring body is provided with compression ring opening, has frizing cut platform at the lower end outside of ring body; It is characterized in that, described frizing cuts the lower end outside of platform around ring body, but two ends terminate in the position close to compression ring opening, and namely frizing is cut between the two ends of platform and compression ring opening and disconnected, and retains a bit of complete ring body herein as air-block structure.
2. engine piston ring according to claim 1, is characterized in that: described air-block structure length L is 1 ~ 4mm, and the connection rounding R between frizing otch is 2 ~ 4mm.
3. engine piston ring according to claim 1 and 2, is characterized in that: it is nose shape that described frizing cuts platform.
4. engine piston ring according to claim 1 and 2, is characterized in that: described piston ring is second gas ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537995.5A CN104314700A (en) | 2014-10-13 | 2014-10-13 | Engine piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537995.5A CN104314700A (en) | 2014-10-13 | 2014-10-13 | Engine piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104314700A true CN104314700A (en) | 2015-01-28 |
Family
ID=52369992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537995.5A Pending CN104314700A (en) | 2014-10-13 | 2014-10-13 | Engine piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314700A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799783A (en) * | 2017-06-19 | 2020-02-14 | 辉门布尔沙伊德有限公司 | Oil scraping piston ring |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259495Y (en) * | 1996-01-03 | 1997-08-13 | 杨四知 | Lap compensating piston ring |
| DE19707131C1 (en) * | 1997-02-22 | 1998-06-18 | Ae Goetze Gmbh | Oil scraper piston ring for internal combustion engine |
| CN2338497Y (en) * | 1997-02-21 | 1999-09-15 | 李明武 | Leakage-free piston ring and piston associated with same |
| CN2388362Y (en) * | 1999-09-22 | 2000-07-19 | 广西中环机械有限责任公司 | Double-torsional anti-rotating complementary piston ring |
| CN201144738Y (en) * | 2008-01-22 | 2008-11-05 | 丁正德 | Piston and piston ring assembly |
| CN201443441U (en) * | 2009-03-30 | 2010-04-28 | 郎益民 | Piston ring device for engine |
| US20100162987A1 (en) * | 2008-12-25 | 2010-07-01 | Teikoku Piston Ring Co., Ltd | Piston device for internal combustion engines |
| CN201835937U (en) * | 2010-10-27 | 2011-05-18 | 南京飞燕活塞环股份有限公司 | Piston ring set for passenger car diesel engine |
| CN102168627A (en) * | 2011-04-20 | 2011-08-31 | 安国清 | Piston ring set with high wear resistance |
| CN103452691A (en) * | 2012-05-30 | 2013-12-18 | 重庆长安汽车股份有限公司 | Anti-blow-by piston ring set for automobile supercharged engine |
-
2014
- 2014-10-13 CN CN201410537995.5A patent/CN104314700A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259495Y (en) * | 1996-01-03 | 1997-08-13 | 杨四知 | Lap compensating piston ring |
| CN2338497Y (en) * | 1997-02-21 | 1999-09-15 | 李明武 | Leakage-free piston ring and piston associated with same |
| DE19707131C1 (en) * | 1997-02-22 | 1998-06-18 | Ae Goetze Gmbh | Oil scraper piston ring for internal combustion engine |
| CN2388362Y (en) * | 1999-09-22 | 2000-07-19 | 广西中环机械有限责任公司 | Double-torsional anti-rotating complementary piston ring |
| CN201144738Y (en) * | 2008-01-22 | 2008-11-05 | 丁正德 | Piston and piston ring assembly |
| US20100162987A1 (en) * | 2008-12-25 | 2010-07-01 | Teikoku Piston Ring Co., Ltd | Piston device for internal combustion engines |
| CN201443441U (en) * | 2009-03-30 | 2010-04-28 | 郎益民 | Piston ring device for engine |
| CN201835937U (en) * | 2010-10-27 | 2011-05-18 | 南京飞燕活塞环股份有限公司 | Piston ring set for passenger car diesel engine |
| CN102168627A (en) * | 2011-04-20 | 2011-08-31 | 安国清 | Piston ring set with high wear resistance |
| CN103452691A (en) * | 2012-05-30 | 2013-12-18 | 重庆长安汽车股份有限公司 | Anti-blow-by piston ring set for automobile supercharged engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799783A (en) * | 2017-06-19 | 2020-02-14 | 辉门布尔沙伊德有限公司 | Oil scraping piston ring |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |