CN102141149A - Tail end asymmetric complementary closed-type wear-resisting piston ring - Google Patents
Tail end asymmetric complementary closed-type wear-resisting piston ring Download PDFInfo
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- CN102141149A CN102141149A CN2010101045302A CN201010104530A CN102141149A CN 102141149 A CN102141149 A CN 102141149A CN 2010101045302 A CN2010101045302 A CN 2010101045302A CN 201010104530 A CN201010104530 A CN 201010104530A CN 102141149 A CN102141149 A CN 102141149A
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- piston ring
- half ladder
- gap
- concave surface
- closed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/14—Joint-closures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a tail end asymmetric complementary closed-type wear-resisting piston ring, which is a novel piston ring capable of blocking gas in an internal combustion engine air cylinder from leaking downward from an opening gap of a piston ring and keeping leakproof effect through automatic extending compensation after the piston ring and an air cylinder wall are abraded. As shown in the figure 1, the piston ring is composed of a concave half step (2), a concave half step upper side wall (3), an upper close side wall (4) and a lower close side wall (5) which are arranged at the tail end (A) at one side of the piston ring (1), as well as bulged half steps (6) and (7) which are arranged at the tail end (B) at the other side of the piston ring (1). By the novel piston ring, gas in the air cylinder is prevented from leaking out from the joint of two tail ends of the notch of the piston ring in the compression stroke and the power stroke of the internal combustion engine, simultaneously the piston ring can not be stuck because of expansion at high temperature, the tightness can be strengthened, the using time of the piston ring can be prolonged, the fuel heat utilization ratio can be improved effectively, and the output power of the internal combustion engine can be enhanced.
Description
Technical field
The invention belongs to the internal-combustion engine production technical field, be specifically related to a kind ofly can improve the cylinder of internal-combustion engine seal for a long time, prolong piston ring service time, reduce the terminal asymmetric complementary closed type piston ring of fuel consumption and increasing combustion engine power.
Background technique
For a long time, the research emphasis of internal-combustion engine is to improve working efficiency of internal combustion engine, reduces the internal-combustion engine fuel consumption and prolongs internal-combustion engine service time.Prior art adopts more increases air inlet amount in the cylinder, improves part processing precision, improves the oil spout form, optimizes approach realizations such as plunger designs.Piston ring is that internal-combustion engine system keeps the bubble-tight main structure of cylinder, plays a key effect aspect effective pressure and the fuel oil heat energy utilization rate in keeping cylinder.Piston ring is based on install needing and avoid metal heated expansion, cause the piston ring external diameter to increase and may cause the reason of stuck two aspects of piston ring, and otch (opening) gap and the opening that are designed to disconnect fully are semi-enclosed two kinds of loop configuration that convex-concave ladder mouth formula overlaps mutually.Traditional piston ring basic structure has been used the years up to a hundred, almost there is not room for improvement, we are by carrying out noticing after the air flue analysis to piston, piston ring, piston ring groove: in piston ring is installed to piston ring groove on the piston during working position, still leave the structural opened gap passage of intercommunication up and down on the piston ring or through transverse opening gap, ladder mouth formula piston ring top-piston ring dorsal part gap-ladder mouth formula piston ring below transverse opening clearance channel.When internal combustion engine, the gas in the cylinder can leak downwards by the opened gap of piston ring, and simultaneously, the gas that enters opened gap can also leak downwards through the dorsal part gap of piston ring and the side clearance of below.In compression stroke, the gas in the cylinder can also enter the dorsal part gap by the piston ring side clearance of top, and leak downwards the side clearance that enters piston ring gap and below again.Make the gas in the partial cylinders in compression stroke and power stroke, leak like this, thereby reduced fuel oil heat energy utilization rate and combustion engine powered.Along with the internal combustion engine time lengthening, the otch of piston ring can be along with the wearing and tearing of piston ring external diameter and cylinder inner wall progressively increases, and makes gas leak in the more cylinder and causes the further reduction and the combustion engine powered obvious decline of fuel oil heat energy utilization rate.For this reason, the design personnel have developed the wear-resistant piston ring of the asymmetric complementary closed type of a kind of end through long-term design principle research and a large amount of correlation test.Overcome the deficiency of the terminal combination technology of existing piston ring, improved the engine thermal energy utilization ratio greatly, prolonged internal-combustion engine service time, can also keep long-time continual and steady working state simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of complete closure performance that has, and can be by cylinder inner wall and the wearing and tearing of piston ring outer rim are extended the wear-resistant piston ring of terminal asymmetric complementary closed type of compensation.
The technical solution adopted for the present invention to solve the technical problems is: the composite structure that the both-side ends of piston ring is designed to two groups of semi-convex recessed and full convex-concave complementations.First group of convex-concave composite structure is: in piston ring one side tail end concave surface half ladder (as shown in Figure 4) is arranged, projection half ladder (as shown in Figure 5) of a respective opposed is arranged in the opposite side tail end of piston ring, and both form one group of closing structure (as shown in Figure 6) jointly.This group closing structure can stop the interior gas of cylinder to leak into the piston below downwards, arrive the piston below through piston ring dorsal part gap and side, below clearance leakage; Second group of convex-concave composite structure is: projection half staging pack of front lower place half breach adjacent and piston ring opposite side end below with concave surface half ladder can stop in the cylinder gas through top piston ring side clearance-back gap-piston ring connecting part lower opening clearance leakage to piston below (as shown in Figure 7); Two groups of convex-concave composite structures have constituted the complete closure connecting part (as Fig. 2, shown in Figure 3) of two ends of piston ring jointly.When cylinder inner wall and piston ring outer rim become big because of wearing and tearing, the coincidence surface of contact of the convex-concave assemblying body of the mutual embedding of the both-side ends connecting part of piston ring can carry out the extensibility compensation, guarantee that simultaneously the gap-clearance of piston rings binding site is in sealing state, reach the purpose that the terminal binding site of piston ring is kept closed.
The beneficial effect of the wear-resistant piston ring of the asymmetric complementary closed type of end of the present invention is: can make working gas no longer pass through idle the releasing of piston ring incision at the compression stroke and the power stroke of internal combustion engine, reduce fuel consumption and improve engine output; Simultaneously piston ring can Yin Gaowen expand and stuck yet, and can compensate the cylinder wall of long-term use motor initiation and the piston ring gap increase that the piston ring scuffing increase causes by automatic extension, keep the long-term stability of engine fuel consumption and power.
Description of drawings:
Fig. 1 is the schematic representation of two end structures of the wear-resistant piston ring of terminal asymmetric complementary closed type.
Fig. 2 is the wear-resistant piston ring working state of a terminal asymmetric complementary closed type plan view.
Fig. 3 is the wear-resistant piston ring working state of a terminal asymmetric complementary closed type front view.
Fig. 4 is terminal asymmetric complementary closed type wear-resistant piston ring A side end elevation view and plan view.
Fig. 5 is terminal asymmetric complementary closed type wear-resistant piston ring B side end elevation view and plan view.
Fig. 6 packs into behind the cylinder for the wear-resistant piston ring of terminal asymmetric complementary closed type and cylinder inner wall, piston between close the horizontal sectional drawing that ties up to the piston ring upper surface.
Fig. 7 packs into behind the cylinder for the wear-resistant piston ring of terminal asymmetric complementary closed type and cylinder inner wall, piston between close the horizontal sectional drawing that ties up to piston ring concave surface half ladder (2) plane.
Numeral among the figure: 1. piston ring, 2. concave surface half ladder, 3. concave surface half ladder upper side wall, 4. go up closed sidewall, 5. following closed sidewall, 6. protruding half ladder, 7. half ladder, 8. upper shed gap, 9. inner opening gap, 10. under shed gap, 11. cylinder inner walls, 12. piston, 13. piston ring dorsal part gaps.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing, but they are not limitation of the invention.
Finished form after piston ring completes and to be installed to the shape when in running order in the piston ring groove of piston of back in the cylinder be different.As shown in Figure 1, after piston ring completes a vesica piscis that has opening, it has two free-ends that separate.As Fig. 2, shown in Figure 3, after in the piston ring groove on the piston that piston ring is packed into and the cylinder of packing into, two ends just are in closed state.As Fig. 4, shown in Figure 5, the present invention is processed as a side end (A) of piston ring and has concave surface half step (2), one and go up closed sidewall (3) and one composite structure of closed sidewall (4) down, and opposite side end (B) is processed as projection half step (5) and one and half steps (a 6) composite structure with terminal (A) complete complementation.When piston ring was installed to the working position, the asymmetric complementary closing structure on the both-side ends just can be closed into the opened gap of intercommunication up and down the blind cavity configuration to a direction opening.
As shown in Figure 6, the piston ring both-side ends upper shed gap (8) that is installed in the piston ring inside groove is in closed state.Concave surface half ladder (2) of terminal (A) stops cylinder interior gas leakage in top to the piston below with the mutual embedded structure that projection half step (5) of opposite side end (B) is combined to form.The closing structure of projection half step (6) combination of the last closed sidewall (4) of terminal (A) side and terminal (B) side can stop the gas in the cylinder to leak into the dorsal part gap of piston ring groove through upper shed gap (8).Projection half step (6) leaves a structure interval (8) with concave surface half step upper side wall (3), prevents that piston ring is stuck because of expanded by heating.
When concave surface half ladder (2) of (A) side, last closed sidewall (4) and terminal (B) side projection half step (5) make up endways, two Fang Jun have certain wider space, still keep down after B side displacement at projection half ladder (5), inside complementary relationship, like this, after just having guaranteed that the inboard long term wear of piston ring outer rim and cylinder wall causes opened gap (8) to become greatly, the air-tight state when still keeping design.
As shown in Figure 7, inner opening gap (9) and under shed gap (10) that are installed in the piston ring both-side ends of piston ring inside groove are in closed state.The following closed sidewall (5) of terminal (A) side can stop the gas in the cylinder to leak to the piston below through top piston ring side clearance-piston ring dorsal part gap (13)-inboard opened gap (9) with the closing structure that half step (7) of opposite side end (B) is together to form.Under shed gap (10) only communicates with the piston ring below, is air-tight state with piston ring top and piston ring dorsal part gap.
Equally, when the following closed sidewall (5) of terminal (A) side makes up with half step (7) of opposite side end (B), two Fang Jun leave certain continuity space, still keep outside complementary relationship after inboard opened gap (9) increases, gas can not leak into the piston below through above-mentioned approach in the cylinder.
Claims (4)
1. the end wear-resistant piston ring of asymmetric complementary closed type (1), it is characterized in that asymmetric complementary closed type half ladder being arranged at a side end (A) and the opposite side end (B) of piston ring, this complementary relationship can not change under the width of piston ring and the thickness condition increasing or reduce, and can leak through piston ring two terminal connecting part opened gaps by blocking piston ring top gas after the combination mutually.
2. the wear-resistant piston ring of the asymmetric complementary closed type of end according to claim 1 is characterized in that: described piston ring one side end (A) has concave surface half ladder (2), concave surface half ladder upper side wall (3), last closed sidewall (4), following closed sidewall (5).
2.1, concave surface according to claim 2 half ladder (2), it is characterized in that: the radian of concave surface half ladder external side brim is identical with the design radian of piston ring, the radian of inner side edge is identical with the inner side edge radian of protruding half ladder (6); Concave surface half ladder is adjacent with last closed sidewall (4) with concave surface half ladder upper side (3), in the other end below of concave surface half ladder (2) relative with concave surface half step upper side (3) concave surface half ladder (2) downside is arranged.
2.2, the closed sidewall (4) of according to claim 2, it is characterized in that: it is identical with the radian of projection half step (6) of piston ring end (B) to go up closed sidewall (4), two ends in conjunction with the time form occluding relation.
2.3, piston ring according to claim 2 one side end (A), it is characterized in that: concave surface half ladder (2) on the end, projection half ladder (6) on concave surface half ladder upper side (3), last closed sidewall (4), the opposite side end (B) is with cylinder inner wall (11), the common closed blind shape upper shed gap of forming to piston ring top opening, chamber (8); Simultaneously, the common closed blind shape under shed gap, chamber (10) that constitutes to the piston ring lower opening of half step (7) of concave surface half ladder downside and piston ring end (B).
3. the wear-resistant piston ring of the asymmetric closed type of end according to claim 1 is characterized in that: described piston ring opposite side end (B) has protruding half ladder (6) and half ladder (7).
3.1, projection according to claim 3 half ladder (6), it is characterized in that: the height of protruding half ladder (6) is less than the width of piston ring, the external side brim radian is identical with piston ring design radian, inner side edge and last closed sidewall (4) radian complementation, when projection half ladder (6) and last closed sidewall (4) when combining, no gap exists.
3.2, according to described projection half ladder of claim 3.1 (6), it is characterized in that: the height that the height of protruding half ladder (6) adds upper recess surface half ladder (2) equals the width of piston ring, does not have the gap when adjacent and exists.
3.3, according to described half ladder of claim 3.2 (7), it is characterized in that: the inner side edge radian of half ladder (7) and the down radian complementation of closed sidewall (4), do not have the gap when adjacent and exist.And, the common closed blind shape inner opening gap, chamber (9) that constitutes to piston ring dorsal part clearance opening of the leading flank of the inner side surface of half ladder (7), following closed sidewall (5).
4. the wear-resistant piston ring of the asymmetric closed type of end according to claim 1 is characterized in that: there are upper shed gap (8), inner opening gap (9) and under shed gap (10) of the snap ring that prevents to expand both-side ends (A, B) connecting part.The convex-concave structure of forming three opened gaps all has certain extendable room, and when upper shed gap (8), inner opening gap (9) when under shed gap (10) width increases, still can keep airtight closed blind cavity configuration.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101045302A CN102141149A (en) | 2010-02-03 | 2010-02-03 | Tail end asymmetric complementary closed-type wear-resisting piston ring |
| PCT/CN2010/000590 WO2011094906A1 (en) | 2010-02-03 | 2010-04-29 | End-unsymmetrical complementary close-type abrasion-resistant piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101045302A CN102141149A (en) | 2010-02-03 | 2010-02-03 | Tail end asymmetric complementary closed-type wear-resisting piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102141149A true CN102141149A (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101045302A Pending CN102141149A (en) | 2010-02-03 | 2010-02-03 | Tail end asymmetric complementary closed-type wear-resisting piston ring |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102141149A (en) |
| WO (1) | WO2011094906A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383963A (en) * | 2010-09-02 | 2012-03-21 | 李霄伟 | Piston ring |
| CN102808953A (en) * | 2012-09-04 | 2012-12-05 | 兴化市开源船舶机械有限公司 | High-pressure resistant groove-type sealing strip of rotating-vane type hydraulic cylinder |
| CN111473106A (en) * | 2020-03-09 | 2020-07-31 | 合肥通用机械研究院有限公司 | Piston ring structure suitable for wide working condition operation of micro oil-free compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325534Y (en) * | 1998-04-08 | 1999-06-23 | 蔡平 | Sealing type and self-lubricating ladder-shaped combination piston ring |
| CN201093062Y (en) * | 2007-06-15 | 2008-07-30 | 陈郁传 | Piston ring |
-
2010
- 2010-02-03 CN CN2010101045302A patent/CN102141149A/en active Pending
- 2010-04-29 WO PCT/CN2010/000590 patent/WO2011094906A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383963A (en) * | 2010-09-02 | 2012-03-21 | 李霄伟 | Piston ring |
| CN102808953A (en) * | 2012-09-04 | 2012-12-05 | 兴化市开源船舶机械有限公司 | High-pressure resistant groove-type sealing strip of rotating-vane type hydraulic cylinder |
| CN111473106A (en) * | 2020-03-09 | 2020-07-31 | 合肥通用机械研究院有限公司 | Piston ring structure suitable for wide working condition operation of micro oil-free compressor |
| CN111473106B (en) * | 2020-03-09 | 2022-05-31 | 合肥通用机械研究院有限公司 | Piston ring structure suitable for wide working condition operation of micro oil-free compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011094906A1 (en) | 2011-08-11 |
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Addressee: Li Xiaowei Document name: the First Notification of an Office Action |
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Application publication date: 20110803 |