BE828992A - Systeme de fermeture sur pour vanne a piston flottant libre - Google Patents

Systeme de fermeture sur pour vanne a piston flottant libre

Info

Publication number
BE828992A
BE828992A BE156279A BE156279A BE828992A BE 828992 A BE828992 A BE 828992A BE 156279 A BE156279 A BE 156279A BE 156279 A BE156279 A BE 156279A BE 828992 A BE828992 A BE 828992A
Authority
BE
Belgium
Prior art keywords
piston valve
floating piston
closing system
free floating
free
Prior art date
Application number
BE156279A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE828992A publication Critical patent/BE828992A/xx

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • F16K17/105—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve using choking or throttling means to control the fluid operation of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
    • 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
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Control Of Turbines (AREA)
  • Fluid-Driven Valves (AREA)
BE156279A 1974-05-14 1975-05-13 Systeme de fermeture sur pour vanne a piston flottant libre BE828992A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46993074A 1974-05-14 1974-05-14

Publications (1)

Publication Number Publication Date
BE828992A true BE828992A (fr) 1975-11-13

Family

ID=23865597

Family Applications (1)

Application Number Title Priority Date Filing Date
BE156279A BE828992A (fr) 1974-05-14 1975-05-13 Systeme de fermeture sur pour vanne a piston flottant libre

Country Status (11)

Country Link
JP (1) JPS5514946B2 (xx)
BE (1) BE828992A (xx)
CA (1) CA1038260A (xx)
CH (1) CH594155A5 (xx)
DE (1) DE2521193A1 (xx)
ES (1) ES437278A1 (xx)
FR (1) FR2271476B1 (xx)
GB (1) GB1466838A (xx)
IT (1) IT1038117B (xx)
NL (1) NL7505070A (xx)
SE (1) SE412103B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687131B2 (ja) * 1986-12-25 1994-11-02 富士写真フイルム株式会社 ハロゲン化銀写真感光材料
DE4320937A1 (de) * 1993-06-24 1995-01-05 Abb Management Ag Stellantrieb für ein Regelventil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2127281A5 (xx) * 1971-03-03 1972-10-13 Ellingsen Karl

Also Published As

Publication number Publication date
GB1466838A (en) 1977-03-09
NL7505070A (nl) 1975-11-18
DE2521193A1 (de) 1975-11-27
SE7505541L (sv) 1975-11-17
CH594155A5 (xx) 1977-12-30
JPS50156036A (xx) 1975-12-16
IT1038117B (it) 1979-11-20
CA1038260A (en) 1978-09-12
FR2271476A1 (xx) 1975-12-12
SE412103B (sv) 1980-02-18
FR2271476B1 (xx) 1980-04-11
JPS5514946B2 (xx) 1980-04-19
ES437278A1 (es) 1977-01-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: WESTINGHOUSE ELECTRIC CORP.

Effective date: 19840513