BR9004558A - Acionador de valvula e processo para acionar a haste de valvula e para limitar a velocidade da haste de comporta em uma valvula - Google Patents

Acionador de valvula e processo para acionar a haste de valvula e para limitar a velocidade da haste de comporta em uma valvula

Info

Publication number
BR9004558A
BR9004558A BR909004558A BR9004558A BR9004558A BR 9004558 A BR9004558 A BR 9004558A BR 909004558 A BR909004558 A BR 909004558A BR 9004558 A BR9004558 A BR 9004558A BR 9004558 A BR9004558 A BR 9004558A
Authority
BR
Brazil
Prior art keywords
valve
rod
activate
limit
speed
Prior art date
Application number
BR909004558A
Other languages
English (en)
Inventor
Thomas A Golden
Original Assignee
Otis Eng Co
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 Otis Eng Co filed Critical Otis Eng Co
Publication of BR9004558A publication Critical patent/BR9004558A/pt

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
BR909004558A 1989-12-11 1990-09-12 Acionador de valvula e processo para acionar a haste de valvula e para limitar a velocidade da haste de comporta em uma valvula BR9004558A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/449,707 US4934652A (en) 1989-12-11 1989-12-11 Dual stage valve actuator

Publications (1)

Publication Number Publication Date
BR9004558A true BR9004558A (pt) 1991-09-10

Family

ID=23785180

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909004558A BR9004558A (pt) 1989-12-11 1990-09-12 Acionador de valvula e processo para acionar a haste de valvula e para limitar a velocidade da haste de comporta em uma valvula

Country Status (2)

Country Link
US (1) US4934652A (pt)
BR (1) BR9004558A (pt)

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Also Published As

Publication number Publication date
US4934652A (en) 1990-06-19

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 12/09/2005