GB1387847A - Production of piston rings - Google Patents
Production of piston ringsInfo
- Publication number
- GB1387847A GB1387847A GB2306172A GB2306172A GB1387847A GB 1387847 A GB1387847 A GB 1387847A GB 2306172 A GB2306172 A GB 2306172A GB 2306172 A GB2306172 A GB 2306172A GB 1387847 A GB1387847 A GB 1387847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- cross
- length
- section
- groove
- 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
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
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
- F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
- F04B39/042—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/04—PTFE [PolyTetraFluorEthylene]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
1387847 Pistons LINDE AG 17 May 1972 [18 May 1971] 23061/72 Heading F2T A captive piston ring is made by producing an extruded length of PTFE or a similar fluorinecontaining resin having a cross-section substantially the same as the finished ring, cutting a length equal to the required peripheral length of the ring and introducing said cut length into a piston groove having a cross-section corresponding to that of the ring. The extruded lengths may be in rod or ribbon form and the flank surfaces may be produced to their final size during extruding or by mechanical finishing. The cut length is introduced tangentially into the piston groove through a window having a shape corresponding to the cross-section of the ring and the cut length may be straight or curved before insertion in the groove. The ring is held captive by the undercut cross-section of the groove. Specification 1,267,173 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2124653 | 1971-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1387847A true GB1387847A (en) | 1975-03-19 |
Family
ID=5808246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2306172A Expired GB1387847A (en) | 1971-05-18 | 1972-05-17 | Production of piston rings |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH544646A (en) |
FR (1) | FR2138033B1 (en) |
GB (1) | GB1387847A (en) |
-
1972
- 1972-04-28 CH CH637072A patent/CH544646A/en not_active IP Right Cessation
- 1972-05-17 FR FR727217647A patent/FR2138033B1/fr not_active Expired
- 1972-05-17 GB GB2306172A patent/GB1387847A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH544646A (en) | 1973-11-30 |
FR2138033B1 (en) | 1973-07-13 |
FR2138033A1 (en) | 1972-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7407708L (en) | ||
GB1452748A (en) | Wedge for gripping a multi-ply cable | |
ES438930A1 (en) | Process for the production of a marbled or mottled soap cake and the product of such process | |
ES448889A1 (en) | Striped soap, its production and apparatus for its production | |
GB1448774A (en) | Drive formations of fasteners | |
GB1220874A (en) | A method for securing a fitting to a pipe | |
GB1285141A (en) | Improvements relating to the manufacture of housings | |
GB1387847A (en) | Production of piston rings | |
GB1381037A (en) | Production of bevel gears | |
GB1398548A (en) | Shotgun cartridge cases | |
ES2002237A6 (en) | Method for making a sealing ring. | |
ES276020U (en) | Rings for fluid drive assemblies. | |
GB1456735A (en) | Die for manufacturing rectangular section rods or wire of compound material and rods or wire produced with such a die | |
GB1387589A (en) | Lenses | |
GB1433132A (en) | Method of manufacturing screw rotors for compressors | |
GB1349944A (en) | Pistons | |
GB1306987A (en) | Method of forming an interlocked layer of wires on a core | |
ES408954A1 (en) | Method of manufacturing flexible conical tubes and punch used for same | |
GB1117777A (en) | Forming an annular abutment on a shaft | |
GB1313639A (en) | Piston rings | |
GB1357099A (en) | Method of manufacturing silicon nitride products | |
JPS5641014A (en) | Manufacture of composite wire | |
GB1459059A (en) | Method of producing commutators composed of copper or a copper alloy and insulating material | |
JPS5238412A (en) | Sintered alloy piston ring having superior breakage resistance and a p rocess for production of same | |
GB959598A (en) | Improvements in or relating to the forming of polytetrafluoroethylene |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |