BR9711938A - Piston and cylinder device with elastic seal. - Google Patents
Piston and cylinder device with elastic seal.Info
- Publication number
- BR9711938A BR9711938A BR9711938-5A BR9711938A BR9711938A BR 9711938 A BR9711938 A BR 9711938A BR 9711938 A BR9711938 A BR 9711938A BR 9711938 A BR9711938 A BR 9711938A
- Authority
- BR
- Brazil
- Prior art keywords
- piston
- metal
- wall portion
- thin wall
- elastic seal
- Prior art date
Links
- 239000002184 metal Substances 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
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
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/04—Resilient guiding parts, e.g. skirts, particularly for trunk pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
<B>"DISPOSITIVO DE PISTãO E CILINDRO COM VEDAçãO ELáSTICA"<D>. Um pistão de metal (15, 16) tem uma aba (17, 18) que engata uma vedação elástica (19, 20) montada em uma perfuração (13, 14) de um cilindro metálico (11, 12). A aba (17, 18) tem uma porção de parede delgada (34, 35) que é elasticamente flexível e é dimensionada em relação à perfuração (13, 14) de tal modo que, sempre que pressão de fluido atuando sobre o pistão (15, 16) exceder um valor predeterminado, a porção de parede delgada (34, 35) será deformada para fornecer uma vedação de metal com metal secundária (36, 37) protegendo a vedação elástica (19, 20) do ambiente externo. Desse modo, o espaço de folga entre a aba do pistão (17, 18) e o cilindro (11, 12) é fechado pela deformação para fora da porção de parede delgada (34, 35) devido à pressão crescente de fluido. Isto inibe corrosão das superfícies de metal engatadas e nega espaço para acréscimo de crescimento marinho ou sedimento.<B> "PISTON AND CYLINDER DEVICE WITH ELASTIC SEALING" <D>. A metal piston (15, 16) has a tab (17, 18) that engages an elastic seal (19, 20) mounted on a perforation (13, 14) of a metal cylinder (11, 12). The flap (17, 18) has a thin wall portion (34, 35) that is elastically flexible and is dimensioned in relation to the perforation (13, 14) in such a way that, whenever fluid pressure acting on the piston (15 , 16) exceeds a predetermined value, the thin wall portion (34, 35) will be deformed to provide a metal-to-secondary metal seal (36, 37) protecting the elastic seal (19, 20) from the external environment. In this way, the clearance space between the piston flap (17, 18) and the cylinder (11, 12) is closed by deformation out of the thin wall portion (34, 35) due to the increasing fluid pressure. This inhibits corrosion of the engaged metal surfaces and negates space for increased marine growth or sediment.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9621769.0A GB9621769D0 (en) | 1996-10-18 | 1996-10-18 | Piston and cylinder device |
PCT/GB1997/002865 WO1998017930A1 (en) | 1996-10-18 | 1997-10-17 | Piston and cylinder device with resilient seal |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9711938A true BR9711938A (en) | 2000-01-18 |
Family
ID=10801652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9711938-5A BR9711938A (en) | 1996-10-18 | 1997-10-17 | Piston and cylinder device with elastic seal. |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU4712797A (en) |
BR (1) | BR9711938A (en) |
GB (2) | GB9621769D0 (en) |
NO (1) | NO991804L (en) |
WO (1) | WO1998017930A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3326579A (en) * | 1964-05-27 | 1967-06-20 | Rockwell Mfg Co | Multiple conduit connection |
FR2062051A5 (en) * | 1969-10-08 | 1971-06-25 | Inst Francais Du Petrole | |
USRE31645E (en) * | 1977-08-01 | 1984-08-14 | Regan Offshore International, Inc. | Safety apparatus for automatically sealing hydraulic lines within a sub-sea well casing |
US4460156A (en) * | 1981-05-01 | 1984-07-17 | Nl Industries, Inc. | Wellhead connector with check valve |
US4806114A (en) * | 1985-09-14 | 1989-02-21 | The British Petroleum Company P.L.C. | Underwater electrically conductive coupling |
US4749043A (en) * | 1986-06-25 | 1988-06-07 | Otis Engineering Corp. | Subsurface safety valves and seals |
US4703875A (en) * | 1986-07-24 | 1987-11-03 | S. C. Johnson & Son, Inc. | Low mass piston for aerosol container |
US4741402A (en) * | 1986-10-14 | 1988-05-03 | Hughes Tool Company | Subsea hydraulic connector with multiple ports |
GB2197425B (en) * | 1986-11-12 | 1990-02-28 | Metal Box Plc | Pistons for pressure-dispensing containers |
JPH0310057U (en) * | 1989-06-20 | 1991-01-30 | ||
US5143483A (en) * | 1991-05-06 | 1992-09-01 | Shell Offshore Inc. | Hydraulic stab subassembly for remotely operated vehicle vertical interface tool |
US5284205A (en) * | 1992-04-01 | 1994-02-08 | Halliburton Company | Metal to metal seal for well safety valve |
GB2273396A (en) * | 1992-08-29 | 1994-06-15 | Martin Robin Bowman | Electrical connector |
US5476076A (en) * | 1994-12-06 | 1995-12-19 | Zhou; Zhishan | Internal combustion piston engine utilizing interference movable fit technology |
-
1996
- 1996-10-18 GB GBGB9621769.0A patent/GB9621769D0/en active Pending
-
1997
- 1997-10-17 AU AU47127/97A patent/AU4712797A/en not_active Abandoned
- 1997-10-17 BR BR9711938-5A patent/BR9711938A/en not_active Application Discontinuation
- 1997-10-17 WO PCT/GB1997/002865 patent/WO1998017930A1/en active Application Filing
- 1997-10-17 GB GB9722056A patent/GB2318403A/en not_active Withdrawn
-
1999
- 1999-04-15 NO NO991804A patent/NO991804L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB2318403A (en) | 1998-04-22 |
GB9722056D0 (en) | 1997-12-17 |
AU4712797A (en) | 1998-05-15 |
NO991804D0 (en) | 1999-04-15 |
GB9621769D0 (en) | 1996-12-11 |
NO991804L (en) | 1999-04-15 |
WO1998017930A1 (en) | 1998-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2380795A1 (en) | Primary rod and piston seal | |
BR0001373A (en) | at least substantially closed in such a way that fluid can flow substantially only through the primary flow passage (52). | |
BR9714217A (en) | Explosive preventive control system and process | |
BR0008765A (en) | Well actuator and device for adjusting flow rate inside a well | |
BR0003777A (en) | Temperature protection for the spiral | |
BR9705207A (en) | Metal sealing ring for tubular joint. | |
BR0314010A (en) | Coke Drum Bottom Throttle and Valve | |
BR9815720A (en) | Protective helmet system and kit for the same | |
CA2118889A1 (en) | Trocar with Floating Septum Seal and Protection Thereof | |
CA2184969A1 (en) | Lubrication fluids for reduced air entrainment and improved gear protection | |
BR0211806A (en) | Deformable Dispensing Valve | |
BR9904760A (en) | Submarine hydraulic coupling with extended probe section | |
ES283391U (en) | Spray pump with container connector. | |
ES2130516T3 (en) | QUICK COUPLING CONNECTOR FOR TUBES, PROVIDED WITH A SAFETY VALVE. | |
MY147098A (en) | A pressure relief valve for blown fibre closure | |
BR9901270A (en) | ||
SE9301205D0 (en) | DEVICE AT SHOOTING GATE | |
BR9711938A (en) | Piston and cylinder device with elastic seal. | |
MX162041A (en) | IMPROVEMENTS TO SEAL DEVICE IN METAL CABINETS THAT PROTECT ELECTROMAGNETIC FIELDS | |
BR0102149A (en) | Submarine hydraulic coupling with primary and secondary tubular valves | |
BR0204483A (en) | Magnetic valve | |
CA2236767A1 (en) | Low profile discharge check valve | |
GB2104595A (en) | Water hammer arrestor | |
DE59201016D1 (en) | Two stage valve. | |
BR0309318A (en) | Filter and manufacturing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA10 | Dismissal: dismissal - article 33 of industrial property law |