CN2301541Y - Compound ring piston - Google Patents
Compound ring piston Download PDFInfo
- Publication number
- CN2301541Y CN2301541Y CN 97220443 CN97220443U CN2301541Y CN 2301541 Y CN2301541 Y CN 2301541Y CN 97220443 CN97220443 CN 97220443 CN 97220443 U CN97220443 U CN 97220443U CN 2301541 Y CN2301541 Y CN 2301541Y
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- CN
- China
- Prior art keywords
- ring
- piston
- groove
- composition
- combined gas
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
Abstract
The utility model relates to a compound ring piston for various internal combustion engines and compressors which do reciprocating movement by pistons. The piston comprises a piston (1) and piston rings (2), (6), and the piston (1) is a double cone, a fore cone is provided with a plurality of gas ring grooves and the oil ring grooves; the skirt section cone is with a small taper, and guide is easy. The piston ring is composed of a combined air ring (2) and a combined oil ring (6), and the structure of the combined air ring (2) is two rings in one groove and elastic lining ring. When the piston is used, the sealing performance of a cylinder can be raised, the service life can be prolonged, the swing can be overcome after the piston is worn, the noise is reduced, the lubrication condition of the piston and the cylinder can be improved, oil consumption can be lowered, the pollution can be reduced, and the power performance of engines can be enhanced; the utility model is suitable to generalize and use.
Description
The utility model relates to the composition ring piston that a kind of motor car engine is used, and is applicable to diesel oil or petrol engine, but also is applicable to air compressor.
At present, motor car engine extensively adopts the reciprocating piston in the connecting rod both at home and abroad, and the piston body head is heated than skirt section height during work, often makes single cone shape, and head diameter is littler than the skirt section.In the piston ring groove of head, mostly every groove is to adorn a piston ring, especially compression is only adorned a slice compression ring, when the piston of this structure is made high-speed motion in cylinder, because working environment restriction, bear High Temperature High Pressure, poor lubrication in addition, the surface of contact of piston ring very easily weares and teares in the cylinder and piston, makes piston ring gap constantly become big, and dancing appears in the to-and-fro motion meeting of piston in cylinder, even send knock, produce gas leakage between counterpart, engine power performance, economic performance degenerate, and have limited the working life of motor.The wearing and tearing of cylinder and piston ring, concentrated expression are that piston ring gap becomes big when cooperating, and therefore, the size of piston ring gap is the key factor of decision engine performance.Single groove single ring architecture of existing piston structure, especially compression ring can't remedy opened gap and become the big influence that causes, and cylinder arm and wear of piston-rings are difficult to avoid, so that tightness reduces, and compressive force descends, and engine consumption raises, underpower, over-emitting black exhaust, noise increases.
The purpose of this utility model just is the defective at above-mentioned existing piston structure, and the composition ring piston that provides a kind of bicone to be furnished with combined gas ring and oil ring structure, thereby improve engine power performance and economic performance.
The composition ring piston comprises piston and piston ring.Piston is a bicone, and piston pin hole is a cone with head portion, and piston pin hole is little with skirt end taper ratio head tapering, can select the tapering of 50: 1 and 500: 1 respectively.Piston crown is distributed with the multiple tracks annular groove, divides compression and oil ring groove, and compression is generally two roads or more than it, is evenly equipped with dozens of capillary oilhole between the annular groove on the ring wall last; Oil ring groove is down, be generally together or more than, there is a long-pending oil groove every groove below, is evenly equipped with several spill ports in the long-pending oil groove.The piston skirt cone has the lubricated long-pending oil groove of several mutual circular arc at regular intervals.Oil groove and oilhole can improve the lubricating condition of piston and cylinder arm.
Piston ring comprises combined gas ring and multipiece ring, and combined gas ring radially returns bent lining spring by two opening elasticity compression rings and to be formed, and when being installed on piston ring groove, the aperture position of two compression rings is arranged at an angle; The bottom land liner radially returns bent lining spring, can select leaf spring, and its width can slide in the time of should guaranteeing to cooperate with the annular groove upper and lower end face, and opening should leave the gap.Between two compression rings and and the annular groove end face between all maintain the gap.Multipiece ring is made up of two scraper rings, and its aperture position is also arranged at an angle.The angle of compression ring and scraper ring aperture position is the best with 180 ° of symmetric arrangement.Compression ring and scraper ring can adopt rectangular section ring or twist type ring, keystone ring etc.
The piston advantage of this structure is:
1. tightness is good.Combined gas ring is that single groove dicyclo adds and radially returns bent lining spring structure, the angled layout of dicyclo opening, can avoid piston in cylinder, to produce lower air ring open butt joint short circuit, the elastic force that radially returns labyrinth lining spring makes ring be close to the subsides arm all the time, tightness improves greatly, has overcome piston ring gap to bubble-tight influence.
2. increase the service life.During reciprocating motion of the pistons, cylinder arm and wear of piston-rings can be eliminated the radial clearance between cylinder arm and the piston ring owing to radially return the effect of bent lining spring, gap-clearance of piston rings increases, but the angle of opening is arranged, still can keep its tightness constant, thereby has prolonged piston working life.Moreover the piston skirt tapering is little, can improve its steering capability, has improved piston and has used the life longevity.
3. overcome the piston swing, reduce noise.Mainly be the effect of radially returning bent lining spring, the gap between piston ring and the cylinder arm is eliminated, thereby overcome the piston dancing that occurs when piston ring scuffing produces the gap, also avoided the noise that produces therefrom.
4. saving lubricant oil.Oil ring adopts dicyclo opening symmetric arrangement, can reduce the opening oil leak and scrape phenomenon, improves the frizing performance, saves machine oil.
Adopt this piston, can reduce oil consumption, reduce to pollute, improve engine power performance, economical, societal benefits are remarkable, are suitable for applying.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the front view of composition ring piston
Fig. 2 is the plan view of composition ring piston
The utility model is done further commentary below in conjunction with accompanying drawing embodiment.The composition ring piston comprises piston (1) and piston ring (2), (6).Piston (1) is a bicone, the above forecone tapering of piston pin hole is 50: 1, there are two road compressions the top, be evenly equipped with 0.5 millimeter capillary oilhole of 20 (5) between the annular groove on the ring wall, there are two road oil ring grooves the below, every groove below is equipped with long-pending oil groove (8), is evenly equipped with 16 spill ports (9) in the long-pending oil groove (8); Piston pin hole was got 500: 1 with the skirt end cone taper, and the skirt body is processed with the oil groove of 6 road R1.2.
Piston ring divides combined type compression ring (2) and multipiece ring (6), combined gas ring (2) radially returns bent plate formula lining spring (4) by two length of a film square cross-section opening elasticity compression rings (3) and and forms, be installed in piston (1) compression, the aperture position of two compression rings (3) is 180 ° of symmetric arrangement, radially the returning its elasticity of bent plate spring (4) and can make compression ring (3) be close to cylinder arm of bottom land liner; Multipiece ring (6) is the scraper ring (7) of two length of a film square cross-sections, is installed in the oil ring groove, and the aperture position of scraper ring (7) also is 180 ° of layouts.Between two compression rings (3) or two scraper rings (7) and and annular groove between keep appropriate gap, it is dead to prevent to be subjected to heat expansion.
Combined gaseous ring (3) and scraper ring (7) all select for use the 65 manganese steel chrome faced steel band of RC55-62 that hardens to make, and return bent lining spring (4) and select 65 thick 0.2 millimeter manganese steel material for use.
Claims (9)
1. a composition ring piston comprises piston (1) and piston ring (2) (6), it is characterized in that:
A, piston (1) are bicone, and piston pin hole is a cone with head portion, is distributed with the multiple tracks annular groove, and the top is two roads or its above compression, and there is one or more oil ring groove the below, and piston pin hole is little with skirt end taper ratio head tapering;
B, piston ring comprise combined gas ring (2) and multipiece ring (6), combined gas ring (2) by two opening elasticity compression rings (3) and radially high elasticity grommet spring (4) form, when being installed on piston (1) annular groove, the aperture position of two body compression rings (3) is arranged at an angle, the bottom land liner is to high elasticity grommet (4), between two compression rings (3) and and the groove end face between all maintain the gap; Multipiece ring (6) is made up of two scraper rings (3), and the aperture position of scraper ring is also arranged at an angle;
Be evenly equipped with dozens of capillary oilhole (5) between the annular groove of c, combined gas ring (2) on the ring wall;
Every groove below of d, multipiece ring (6) is equipped with a long-pending oil groove (8), uniform several oilholes (9) in the long-pending oil groove.
2. composition ring piston according to claim 1 is characterized in that the tapering of piston (1) head may be selected to be 50: 1, and the tapering in skirt section may be selected to be 500: 1.
3. composition ring piston according to claim 1, the two opening elasticity compression rings (3) that it is characterized in that the combined gas ring (2) in the piston ring, and two scraper rings (7) of multipiece ring (6), can adopt rectangular section ring or twist type ring, keystone ring etc.
4. composition ring piston according to claim 1 is characterized in that two compression rings (3) of combined gas ring (2), and two scraper rings (7) of multipiece ring (6), and its aperture position is 180 ° of symmetric arrangement.
5. composition ring piston according to claim 1 is characterized in that the radially high elasticity grommet (4) of combined gas ring (2) is the special-purpose grommet of V-type slot type, and grommet and annular groove upper and lower end face are for being slidingly matched.
6. composition ring piston according to claim 1 is characterized in that being evenly equipped with on the ring wall between combined gas ring (2) annular groove capillary oilhole (5) of 0.5 millimeter of 20 .
7. composition ring piston according to claim 1 is characterized in that being evenly equipped with 16 spill ports (9) in the long-pending oil groove (8) of the every groove of multipiece ring (6) below.
8. composition ring piston according to claim 1 is characterized in that the bent lining spring (4) that returns of combined gas ring (2) is selected 65 thick 0.2 millimeter manganese steel material material for use.
9. composition ring piston according to claim 1 is characterized in that piston (1) skirt section is processed with the oil groove of 6 road R1.2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97220443 CN2301541Y (en) | 1997-07-08 | 1997-07-08 | Compound ring piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97220443 CN2301541Y (en) | 1997-07-08 | 1997-07-08 | Compound ring piston |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2301541Y true CN2301541Y (en) | 1998-12-23 |
Family
ID=33936120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 97220443 Expired - Fee Related CN2301541Y (en) | 1997-07-08 | 1997-07-08 | Compound ring piston |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2301541Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104196698A (en) * | 2014-08-11 | 2014-12-10 | 李奇 | Oil-free air compressor |
CN109505975A (en) * | 2018-12-29 | 2019-03-22 | 成都威诺精密机械有限公司 | A kind of aviation piston core design of part and preparation method |
-
1997
- 1997-07-08 CN CN 97220443 patent/CN2301541Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104196698A (en) * | 2014-08-11 | 2014-12-10 | 李奇 | Oil-free air compressor |
CN109505975A (en) * | 2018-12-29 | 2019-03-22 | 成都威诺精密机械有限公司 | A kind of aviation piston core design of part and preparation method |
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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 |