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
Application number
BR9711938-5A
Other languages
Portuguese (pt)
Inventor
James Brian Wilson
Original Assignee
Abb Offshore Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Abb Offshore Systems Ltd filed Critical Abb Offshore Systems Ltd
Publication of BR9711938A publication Critical patent/BR9711938A/en

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
    • 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.

BR9711938-5A 1996-10-18 1997-10-17 Piston and cylinder device with elastic seal. BR9711938A (en)

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)

* Cited by examiner, † Cited by third party
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

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

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law