FR2259991A1 - 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
- FR2259991A1 FR2259991A1 FR7503017A FR7503017A FR2259991A1 FR 2259991 A1 FR2259991 A1 FR 2259991A1 FR 7503017 A FR7503017 A FR 7503017A FR 7503017 A FR7503017 A FR 7503017A FR 2259991 A1 FR2259991 A1 FR 2259991A1
- Authority
- FR
- France
- Prior art keywords
- ring
- piston
- pivot
- piston ring
- annular projection
- 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.)
- Granted
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
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 (2)
| Publication Number | Publication Date |
|---|---|
| FR2259991A1 true FR2259991A1 (en) | 1975-08-29 |
| FR2259991B1 FR2259991B1 (en) | 1977-07-08 |
Family
ID=9782967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7503017A Granted FR2259991A1 (en) | 1974-02-01 | 1975-01-31 | 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 AU AU77740/75A patent/AU7774075A/en not_active Expired
- 1975-01-30 NO NO750280A patent/NO750280L/no unknown
- 1975-01-30 SE SE7501032A patent/SE7501032L/xx not_active Application Discontinuation
- 1975-01-30 FI FI750244A patent/FI750244A/fi not_active Application Discontinuation
- 1975-01-31 DE DE19752503984 patent/DE2503984A1/en active Pending
- 1975-01-31 JP JP50013251A patent/JPS50113654A/ja active Pending
- 1975-01-31 LU LU71775A patent/LU71775A1/xx unknown
- 1975-01-31 BE BE152947A patent/BE825059A/en unknown
- 1975-01-31 DK DK33875*#A patent/DK33875A/da unknown
- 1975-01-31 FR FR7503017A patent/FR2259991A1/en active Granted
- 1975-01-31 ES ES434302A patent/ES434302A1/en not_active Expired
- 1975-02-03 IT IT6726775A patent/IT1027446B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK33875A (en) | 1975-10-06 |
| AU7774075A (en) | 1976-08-05 |
| NL7500992A (en) | 1975-08-05 |
| IT1027446B (en) | 1978-11-20 |
| ES434302A1 (en) | 1976-11-16 |
| JPS50113654A (en) | 1975-09-05 |
| LU71775A1 (en) | 1975-06-24 |
| FR2259991B1 (en) | 1977-07-08 |
| NO750280L (en) | 1975-08-25 |
| FI750244A (en) | 1975-08-02 |
| BE825059A (en) | 1975-05-15 |
| SE7501032L (en) | 1975-08-04 |
| DE2503984A1 (en) | 1975-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |