CN2131993Y - Combined z-type airtight ring - Google Patents
Combined z-type airtight ring Download PDFInfo
- Publication number
- CN2131993Y CN2131993Y CN 91217072 CN91217072U CN2131993Y CN 2131993 Y CN2131993 Y CN 2131993Y CN 91217072 CN91217072 CN 91217072 CN 91217072 U CN91217072 U CN 91217072U CN 2131993 Y CN2131993 Y CN 2131993Y
- Authority
- CN
- China
- Prior art keywords
- ring
- combined
- air ring
- piston
- shaped air
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a combined Z-shaped air ring. The combined Z-shaped air ring is mainly applied to the piston of a reciprocating type two or four-stroke internal combustion engine to be used as an air ring. The combined cross section of the combined Z-shaped air ring is in a Z-shaped characteristic under the state that the combined Z-shaped air ring and a piston cylinder sleeve are assembled. The structure of the combined Z-shaped air ring is simple and advanced. A piston on the existing engine is slightly modified, and the combined Z-shaped air ring can be used. Due to the fact that the combined Z-shaped air ring realizes the full seal of the structure of an annular space between a piston and a cylinder, the per se lubrication problem is better solved, and the problem of air seal under the state of abrasion is better solved. Therefore, the combined Z-shaped air ring can substitute a multi-channel single air ring, and can be matched with a steel sheet ring to use a simpler piston ring set structure to substitute the original structure, and thereby, the purposes that the power of an engine is enhanced, the oil consumption of the engine is lowered, and the working life of the engine is enhanced are achieved. A novel engine with more compact structure and favorable performance is designed out on the basis of the combined Z-shaped air ring.
Description
The utility model is mainly used in reciprocating type two, four-stroke ic engine is done compression ring on its piston.
Existing two, four-stroke ic engine, owing to have the straight-through type leakage path all the time between gap-clearance of piston rings place and the cylinder wall, so existing piston must adopt many compression rings of throttle type sealing configuration.Yet the piston number of rings is many more, and the frictional loss of piston ring group is big more, and is also big more toward complex inertia mass; And the first road ring heat load, mechanical load are the highest, and lubricating condition is the poorest, thereby wearing and tearing are the fastest.For overcoming the above problems, the flourishing country of some automotive industrys has all dropped into considerable strength in the world today, and research is intended to reduce the novel compression ring of piston number of rings.But along with the minimizing of compression ring number, the problem of envelope gas weak effect has appearred again.This is a still unsolved technical problem in the piston ring development work.
The purpose of this utility model will provide a kind of combined gas ring exactly, and it can guarantee its envelope gas effect under the situation that reduces existing piston ring sum; Can improve the lubricating condition of self again effectively, improve its operating life.
The purpose of this utility model is to realize its envelope airway dysfunction and improve its lubricating condition by the two-way oil film wedge structure of Z-shaped combined gas ring to the hermetically sealed effect and it self of the annular space between piston and the cylinder.
As shown in Figure 1, Z-shaped combined gas ring is combined by flexible steel disc ring (1), positive twist type ring (2) and the following steel disc ring (3) gone up of tool.With the assembling condition of piston (15), cylinder (14) under, the opening of its three rings is mutually 120 °.Eliminate each makeup ring from straight-through type leakage path with this, realize circumferential seal the annular space between piston and the cylinder in opening and cylinder wall formation.But, because the pressurized gas (10) in the cylinder still can be walked around the ring back of the body of Z-shaped combined gas ring, process is the opened gap of steel disc ring (3) down, leaks by the passage (8) that is formed jointly by opened gap (5), piston ring land (6) and cylinder wall (7).For this reason, take the shutoff measure at the opening of following steel disc ring (3).Way is: 1, at the end processing seal plate (4) of following steel disc ring opening, the other end is processed the L shaped groove (11) with seal plate (4) pairing.When the two overlapped, seal plate (4) was from shutoff opened gap (5) radially.2, because the radial dimension (18) of lap-joint less than the radial width of positive twist type ring (2), the radial width of following steel disc ring (3) is again greater than the radial width of positive twist type ring (2), so by seal plate (4) respectively with piston ring groove lower end surface, positive twist type ring in the cooperative action of knuckle (16), from the above-below direction shutoff pressurized gas (10) lead to the passages of opened gap (5).So the opened gap of following steel disc ring (5) is by shutoff, thereby reached the purpose of shutoff passage (8).Like this, Z-shaped combined gas ring has been realized hermetically sealed to the annular space between piston and the cylinder.Therefore, can replace the single compression ring of multiple tracks with together Z-shaped combined gas ring.
In order to guarantee when the outer cylinder face at steel disc ring (3) opening two ends is fitted with cylinder wall (7) down, seal plate (4) is located also to fit at faying surface (12) with L shaped groove (11), opened an arc groove (13) in the seal plate (4) and the junction of following steel disc (3), to increase the disturbing property of seal plate (4).
In actual applications, Z-shaped combined gas ring can obtain good lubricating condition.1, by reducing total piston number of rings, directly increased lubricants capacity to it.What 2, positive twist type ring of the present utility model (2) was selected for use is the positive twist type ring of barrel face.Though positive twist type ring (2) elastic force maximum in Z-shaped combined gas ring, because it slides, except that the wearing and tearing that alleviated self greatly, also strengthened the sealing effect of Z-shaped combined gas ring on the oil film of last oil film wedge (9) and following oil film wedge (17) formation.So the lubricating condition of Z-shaped combined gas ring is good, the operating life height.
The adaptability of Z-shaped combined gas ring after for cylinder sleeve and piston ring scuffing is also relatively good, because seal plate (4) and the big manyfold in the overlap joint size ratio open gap (5) of L shaped groove (11), even cylinder sleeve, piston ring wear and tear to some extent, within the specific limits, Z-shaped combined gas ring is still good for the sealing of the annular space between cylinder sleeve and the piston.So, adopt Z-shaped combined gas ring can improve the real work life-span of motor greatly.
Z-shaped combined gas ring is worked under various operating conditions and working speed, and its adaptability is good, and advantage is more.
1, three of Z-shaped combined gas ring makeup rings not only make up but also separate; Steel disc ring (1) is thin, flexible good.These structural measures have all increased the adaptability of Z-shaped combined gas ring to cylinder, have improved its envelope gas effect.
2, Z-shaped combined gas ring with the assembling condition of piston (15), cylinder (14) under, its compound section presents Z-shaped feature, this is an essential characteristic of the present utility model.Under this assemblage characteristic, up and down the steel disc ring respectively shutoff piston ring groove two annular spaces up and down.No matter thereby the working speed of motor how, always there is a steel disc ring playing a supporting seal action.So Z-shaped combined gas ring is specially adapted to rev-happy engine.
3, the steel disc ring all is the rectangular cross section ring up and down.Under the distortion action of positive twist type ring (2), owing to eliminated sideshake between Z-shaped combined gas ring and the piston ring groove, thereby pump oil phenomenon that single rectangular cross section ring is easy to generate and the piston ring electric shock phenomenon that under high rotating speed, occurs have easily been overcome effectively.
4, the external cylindrical surface chromium plating of steel disc ring has up and down improved their sliding capabilities on cylinder surface.They contact with the upper and lower end face of piston ring groove in the mode on plane, thereby little to the wearing and tearing of upper and lower end face.Because their hardness height, smooth surface is smooth again, so the deflection, breathing that are supported on the positive twist type ring (2) between them are more freely, is difficult for jam, is difficult for collaborating, and has improved the functional reliability of Z-shaped combined gas ring.
Adopt Z-shaped combined gas ring, reduce the result of piston ring sum, must improve the operating temperature of oil ring and piston skirt.The swell increment that therefore piston increases can solve by the preset clearance of adjusting between piston and the cylinder.But, because the viscosity that is coated on the machine oil on the cylinder wall also descends thereupon, be easy to draw together and remove, steel disc ring (3) also plays the oil scraper effect under adding, so Z-shaped combined gas ring can with the supporting use of steel disc ring of lighter weight.And, be applicable to petrol engine, diesel engine and motorcycle engine respectively by their multiple supporting form.
Generally speaking, use Z-shaped combined gas ring, total piston number of rings can be reduced, can be by simplifying total formation of piston ring group with the supporting use of steel disc ring; Structurally, it has solved lubrication problem of self and the envelope gas problem under state of wear again preferably.Therefore, dress use Z-shaped combined gas ring on existing two, four-stroke ic engine, can improve the power of motor, reduces oil consumption, raising operating life.And be expected on basis of the present utility model, design the new work engine that structure is compact more, performance is more good.
The part that the utility model adopted, except that the structure of steel disc ring (3) slightly makes a variation down, remaining part all is the existing ingenious combination of part in new structure, need not existing piston ring production line is done big change, just can promptly Z-shaped combined gas ring be produced and satisfy market demand.Moreover simple in structure, the function admirable of the utility model only needs existing piston is transformed a little and can be quoted.So practicability of the present utility model is good, the application value height.
Claims (5)
1, a kind ofly is mainly used in combined gas ring reciprocating type two, four-stroke ic engine, it is made up of flexible steel disc ring (1), positive twist type ring (2) and the following steel disc ring (3) gone up of tool, it is characterized in that: it with the assembling condition of piston (15), cylinder sleeve (14) under, collar extension staggers mutually, following steel disc ring (3) opening one end has seal plate (4) and coincides together with the L shaped groove (11) at the other end that matches, and its compound section is Z-shaped feature.
2, combined gas ring according to claim 1 is characterized in that the radial width of steel disc ring (3) is wideer than positive twist type ring (2) down.
3, combined gas ring according to claim 1 is characterized in that the section of steel disc ring (3) is rectangular down.
4, combined gas ring according to claim 1 is characterized in that the seal plate (4) and the joint of following steel disc ring (3) have arc groove (13).
5, combined gas ring according to claim 1 is characterized in that the radial dimension (18) of seal plate (4) and L shaped groove (11) pairing place, less than the radial width of positive twist type ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217072 CN2131993Y (en) | 1991-06-23 | 1991-06-23 | Combined z-type airtight ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91217072 CN2131993Y (en) | 1991-06-23 | 1991-06-23 | Combined z-type airtight ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2131993Y true CN2131993Y (en) | 1993-05-05 |
Family
ID=33760123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91217072 Expired - Fee Related CN2131993Y (en) | 1991-06-23 | 1991-06-23 | Combined z-type airtight ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2131993Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025090A1 (en) * | 2000-09-20 | 2002-03-28 | Weimin Tang | A combined gas ring and its piston ring-piston assembly |
-
1991
- 1991-06-23 CN CN 91217072 patent/CN2131993Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025090A1 (en) * | 2000-09-20 | 2002-03-28 | Weimin Tang | A combined gas ring and its piston ring-piston assembly |
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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 |