CN1082144A - Gapless piston set - Google Patents
Gapless piston set Download PDFInfo
- Publication number
- CN1082144A CN1082144A CN 93101204 CN93101204A CN1082144A CN 1082144 A CN1082144 A CN 1082144A CN 93101204 CN93101204 CN 93101204 CN 93101204 A CN93101204 A CN 93101204A CN 1082144 A CN1082144 A CN 1082144A
- Authority
- CN
- China
- Prior art keywords
- piston
- ring
- pressure regulation
- loam cake
- packing ring
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims description 15
- 238000007598 dipping method Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 210000004907 gland Anatomy 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention provides a reciprocating movement type non-leakage sealed non-clearance piston group, which realizes the sealing of the piston group by a variable pressure type ring groove and a combined non-leakage sealing ring arranged in the variable pressure type ring groove, solves the problems that the working medium leaks from the opening of the sealing ring of the existing piston group, the back pressure of a piston ring is large, so that the motion resistance of the piston group is large when the piston group works, and overcomes the defect that the existing piston group has the oil pumping function. The invention can be applied to internal combustion engines, hydraulic and pneumatic equipment.
Description
The present invention relates to a kind of internal-combustion engine, realize the non-interval piston group of reciprocating inclusion seal in hydraulic pressure and the air pressure mechanism.
The annular groove of dress seal ring is all-in-one-piece in the piston set of using at present, seal ring can be beated along the piston motion direction in annular groove, produce bad pumping effect, and the opening of seal ring self has working medium to leak, the seal ring back pressure causes the piston set resistance to motion big greatly.
The objective of the invention is in order to provide a kind of leak free; little back pressure; the non-interval piston group of no pumping effect; solved the refrigerant leakage that existing piston set exists; problems such as the seal ring back pressure is big, and the seal ring pumping effect causes burn oil in internal-combustion engine, makes power of IC engine low; the oil consumption height, and exhaust emission is serious.
Structure of the present invention is seen figure: (1) piston loam cake, (2) haulage gear, (3) pressure regulation packing ring, (4) piston lower body, (5) seal ring A, (6) seal ring B, (7) seal ring C, (8) scraper ring.
Piston is a split among the present invention, mainly by piston loam cake (1), haulage gear (2), pressure regulation packing ring (3), form with piston lower body (4), haulage gear (2) pulls to together clipping pressure regulation packing ring (3) between piston loam cake (1) and the piston lower body (4), constitute the closure gasket groove of piston by piston loam cake (1) and pressure regulation packing ring (3), the annular groove end face is shaped on outward-dipping inclination angle, the outer end of pressure regulation packing ring (3) upper-end surface and complex sealing ring by seal ring A(5), and seal ring B(6), seal ring C(7) constitute, the opening of three rings staggers } contact, the inner contacts with piston loam cake (1); The lower end surface of pressure regulation packing ring (3), part between the inside and outside surface of contact of corresponding upper-end surface, contact with piston lower body (4), the complex sealing ring pressurized is between piston loam cake (1) and pressure regulation packing ring (3), and pressure produces the modification of pressure regulation packing ring (3) by the pretightening force of haulage gear (2).
Work with internal-combustion engine upper piston group is that example illustrates working principle of the present invention: in intake stroke, descent of piston, complex sealing ring is pressed against on the piston loam cake (1), the piston lower gas can only be scurried seal ring A(5) and seal ring C(7) opening, and seal ring B(6) every having ended seal ring A(5) and seal ring C(7) opening, make gas can't pass through complex sealing ring; In compression, work done, in the exhaust stroke, the pressure that piston loam cake (1) is subjected to increases, distortion increases, the corresponding increase of power of extruding complex sealing ring, make the pressure of complex sealing ring and piston loam cake (1) still keep very little, pressure regulation packing ring (3) is outward-dipping with the surface of contact of complex sealing ring, help contacting of complex sealing ring and cylinder wall, piston top pressurized gas can only be scurried seal ring B(6 in these three strokes) opening, then by seal ring C(7) and seal ring A(5) every ending, because complex sealing ring contact with piston loam cake (1) all the time,, also eliminated the high back pressure of pressurized gas to seal ring so eliminated the oily phenomenon of pump in the existing piston set.
Outstanding advantage of the present invention is a good seal performance, and high pressure resistant, high temperature resistant, seal ring does not have pumping effect, piston set resistance to motion at work is little, and the internal-combustion engine pressure of explosion is improved, and power increases, oil consumption reduces, and oil consumption reduces, and exhaust emission is reduced.
Claims (1)
- A kind of non-interval piston group, it is to reach the sealing that the combined type inclusion seal ring of wherein packing into is realized piston set by the pressure swing type annular groove,Piston is a split among the present invention, mainly by the piston loam cake, the pressure regulation packing ring, the piston lower body, haulage gear is formed, and haulage gear pulls to together clipping the pressure regulation packing ring between piston loam cake and the piston lower body, constitute the closure gasket groove of piston by piston loam cake and pressure regulation packing ring, the annular groove end face is shaped on outward-dipping inclination angle, the outer end of pressure regulation packing ring upper-end surface and combined labyrinth and carbon gland loop contacts, and the inner contacts with the piston loam cake; The lower end surface of pressure regulation packing ring, the part between the inside and outside end in contact face of corresponding upper-end surface contacts with the piston lower body, and complex sealing ring is packed into and is crushed between the upper and lower end face of annular groove behind this annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93101204 CN1082144A (en) | 1993-01-18 | 1993-01-18 | Gapless piston set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93101204 CN1082144A (en) | 1993-01-18 | 1993-01-18 | Gapless piston set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1082144A true CN1082144A (en) | 1994-02-16 |
Family
ID=4983465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93101204 Pending CN1082144A (en) | 1993-01-18 | 1993-01-18 | Gapless piston set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
-
1993
- 1993-01-18 CN CN 93101204 patent/CN1082144A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |