ES410399A1 - Pneumatic controllers - Google Patents

Pneumatic controllers

Info

Publication number
ES410399A1
ES410399A1 ES410399A ES410399A ES410399A1 ES 410399 A1 ES410399 A1 ES 410399A1 ES 410399 A ES410399 A ES 410399A ES 410399 A ES410399 A ES 410399A ES 410399 A1 ES410399 A1 ES 410399A1
Authority
ES
Spain
Prior art keywords
pressure
pneumatic
regulator
manual
inverters
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
Application number
ES410399A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of ES410399A1 publication Critical patent/ES410399A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)
  • Feedback Control In General (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

Manual-automatic switching device for pneumatic regulator with multiple actions, including a switching inverter that transmits the regulator outlet pressure to the adjusting element, in automatic position, and an auxiliary control pressure, in manual position, characterizing said device because it includes two supplementary pneumatic inverters controlled at the same time as the switching inverter, one of said inverters, connected to the input terminal of the regulator reference pressure, whose input terminal is connected to a pneumatic capacity, being connected in such a way that the aforementioned terminal receives a pressure linked to the measuring pressure, in the manual position, and, through a pneumatic resistance, the reference pressure, in the automatic position, the other of said inverters being connected to the integral chamber of the regulator, connected in such a way that said integral chamber receives the auxiliary control pressure ar, in manual position, and this isolated, in automatic position. (Machine-translation by Google Translate, not legally binding)
ES410399A 1972-01-06 1973-01-05 Pneumatic controllers Expired ES410399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7200309A FR2166287B1 (en) 1972-01-06 1972-01-06

Publications (1)

Publication Number Publication Date
ES410399A1 true ES410399A1 (en) 1975-12-01

Family

ID=9091537

Family Applications (1)

Application Number Title Priority Date Filing Date
ES410399A Expired ES410399A1 (en) 1972-01-06 1973-01-05 Pneumatic controllers

Country Status (7)

Country Link
BE (1) BE793075A (en)
DE (1) DE2300477C2 (en)
ES (1) ES410399A1 (en)
FR (1) FR2166287B1 (en)
GB (1) GB1395483A (en)
IT (1) IT984622B (en)
NL (1) NL7300258A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843030A1 (en) * 1978-10-03 1980-04-17 Eckardt Ag Pneumatic controller shock-free manual to automatic changeover - involves delayed operation of choke by=pass element valve and enables rapid change of demand valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252448B (en) * 1967-10-19 Siemens Aktiengesellschaft Berlin und München Erlangen Control device with meshed control loops
US2939472A (en) * 1956-01-17 1960-06-07 Honeywell Regulator Co Air-pressure-operated automatically or manually actuated controller

Also Published As

Publication number Publication date
GB1395483A (en) 1975-05-29
BE793075A (en) 1973-06-20
FR2166287B1 (en) 1974-07-26
DE2300477A1 (en) 1973-07-19
DE2300477C2 (en) 1984-01-26
FR2166287A1 (en) 1973-08-17
IT984622B (en) 1974-11-20
NL7300258A (en) 1973-07-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19850228