IT1027446B - I.C. engine piston and piston ring - annular projection on radial wall of ring or groove allows ring to pivot - Google Patents
I.C. engine piston and piston ring - annular projection on radial wall of ring or groove allows ring to pivotInfo
- Publication number
- IT1027446B IT1027446B IT6726775A IT6726775A IT1027446B IT 1027446 B IT1027446 B IT 1027446B IT 6726775 A IT6726775 A IT 6726775A IT 6726775 A IT6726775 A IT 6726775A IT 1027446 B IT1027446 B IT 1027446B
- Authority
- IT
- Italy
- Prior art keywords
- ring
- piston
- pivot
- piston ring
- annular projection
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
To obtain the best piston ring/cylinder wall oil film conditions, the piston ring is free to pivot, during the operation cycle, relative to the piston body. An annular ring (27) may be machined to stand proud in one wall of the piston ring groove towards the outer diameter, to provide a pivot, or an annular projection may be formed integrally with the piston ring. Alternatively a distinct annular ring may be set into the wall of the piston ring groove. The projections on the ring or groove wall may have flat or pointed tips, and there may be more than one such projection.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB474474 | 1974-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1027446B true IT1027446B (en) | 1978-11-20 |
Family
ID=9782967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT6726775A IT1027446B (en) | 1974-02-01 | 1975-02-03 | I.C. engine piston and piston ring - annular projection on radial wall of ring or groove allows ring to pivot |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS50113654A (en) |
| AU (1) | AU7774075A (en) |
| BE (1) | BE825059A (en) |
| DE (1) | DE2503984A1 (en) |
| DK (1) | DK33875A (en) |
| ES (1) | ES434302A1 (en) |
| FI (1) | FI750244A (en) |
| FR (1) | FR2259991A1 (en) |
| IT (1) | IT1027446B (en) |
| LU (1) | LU71775A1 (en) |
| NL (1) | NL7500992A (en) |
| NO (1) | NO750280L (en) |
| SE (1) | SE7501032L (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437762U (en) * | 1977-08-19 | 1979-03-12 | ||
| US4272084A (en) * | 1979-04-30 | 1981-06-09 | Guy F. Atkinson Company | High pressure shaft seal |
| JPS6255446A (en) * | 1985-09-04 | 1987-03-11 | Mitsubishi Electric Corp | Power piston seal mechanism for stirling engine |
| DE4331324C2 (en) * | 1993-09-15 | 1998-04-02 | Man B & W Diesel Ag | Piston ring system |
| JP2014098471A (en) * | 2012-11-16 | 2014-05-29 | Toyota Central R&D Labs Inc | Pressure ring mounted piston |
| DE102017103159B4 (en) | 2017-02-16 | 2023-02-02 | Man Energy Solutions Se | cylinder of an internal combustion engine |
-
1975
- 1975-01-28 NL NL7500992A patent/NL7500992A/en unknown
- 1975-01-30 SE SE7501032A patent/SE7501032L/xx not_active Application Discontinuation
- 1975-01-30 AU AU77740/75A patent/AU7774075A/en not_active Expired
- 1975-01-30 NO NO750280A patent/NO750280L/no unknown
- 1975-01-30 FI FI750244A patent/FI750244A/fi not_active Application Discontinuation
- 1975-01-31 BE BE152947A patent/BE825059A/en unknown
- 1975-01-31 ES ES434302A patent/ES434302A1/en not_active Expired
- 1975-01-31 LU LU71775A patent/LU71775A1/xx unknown
- 1975-01-31 JP JP50013251A patent/JPS50113654A/ja active Pending
- 1975-01-31 DK DK33875*#A patent/DK33875A/da unknown
- 1975-01-31 DE DE19752503984 patent/DE2503984A1/en active Pending
- 1975-01-31 FR FR7503017A patent/FR2259991A1/en active Granted
- 1975-02-03 IT IT6726775A patent/IT1027446B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AU7774075A (en) | 1976-08-05 |
| SE7501032L (en) | 1975-08-04 |
| NL7500992A (en) | 1975-08-05 |
| NO750280L (en) | 1975-08-25 |
| FR2259991B1 (en) | 1977-07-08 |
| FI750244A (en) | 1975-08-02 |
| DE2503984A1 (en) | 1975-08-14 |
| DK33875A (en) | 1975-10-06 |
| FR2259991A1 (en) | 1975-08-29 |
| BE825059A (en) | 1975-05-15 |
| ES434302A1 (en) | 1976-11-16 |
| LU71775A1 (en) | 1975-06-24 |
| JPS50113654A (en) | 1975-09-05 |
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