ES404684A1 - Pneumatic controllers - Google Patents

Pneumatic controllers

Info

Publication number
ES404684A1
ES404684A1 ES404684A ES404684A ES404684A1 ES 404684 A1 ES404684 A1 ES 404684A1 ES 404684 A ES404684 A ES 404684A ES 404684 A ES404684 A ES 404684A ES 404684 A1 ES404684 A1 ES 404684A1
Authority
ES
Spain
Prior art keywords
sealed
chambers
balance
beam balance
integral
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
ES404684A
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 ES404684A1 publication Critical patent/ES404684A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C4/00—Circuit elements characterised by their special functions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2365—Plural series units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2409—With counter-balancing pressure feedback to the modulating device
    • Y10T137/2452—With counter-counter balancing pressure feedback

Abstract

A pneumatic controller providing an outgoing signal proportional to the magnitude and time integral of the incoming signal comprises a first sealed-beam balance with a rigid beam attached onto a diaphragm defining four chambers, a second sealed-beam balance with two chambers performing the flow relay function, and a pressure balance with two chambers for copying the integral pressure. In the case of a pneumatic controller providing an outgoing signal proportional to the magnitude, time integral and time derivative of the incoming signal, the first sealed-beam balance is preceded by a time derivative stage comprised of a sealed-beam balance with four chambers similar in construction to the first sealed-beam balance.
ES404684A 1971-07-12 1972-07-08 Pneumatic controllers Expired ES404684A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717125472A FR2150570B1 (en) 1971-07-12 1971-07-12

Publications (1)

Publication Number Publication Date
ES404684A1 true ES404684A1 (en) 1975-06-16

Family

ID=9080239

Family Applications (1)

Application Number Title Priority Date Filing Date
ES404684A Expired ES404684A1 (en) 1971-07-12 1972-07-08 Pneumatic controllers

Country Status (8)

Country Link
US (1) US3814119A (en)
BE (1) BE785213A (en)
DE (1) DE2234303A1 (en)
ES (1) ES404684A1 (en)
FR (1) FR2150570B1 (en)
GB (1) GB1397966A (en)
IT (1) IT959945B (en)
NL (1) NL7209526A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981318A (en) * 1975-02-03 1976-09-21 The Foxboro Company Pneumatic output signal limiting device
US3978876A (en) * 1975-05-23 1976-09-07 Bailey Meter Company Pneumatic pressure regulator
DE4105062C2 (en) * 1990-09-19 1997-01-23 Helmut Prof Dipl Ing Hoenicke Electropneumatic positioner with pulse width control
US5853022A (en) * 1996-04-10 1998-12-29 Fisher Controls International, Inc. Valve actuator with instrument mounting manifold
US5762315A (en) * 1996-04-10 1998-06-09 Fisher Controls International, Inc. Valve actuator with pliable pressure conversion device
US6062534A (en) * 1997-04-25 2000-05-16 Fisher Controls International Double acting rotary valve actuator
US5975487A (en) * 1997-04-25 1999-11-02 Fisher Controls International, Inc. Rotary valve actuator with high-low-high torque linkage
US5979864A (en) * 1997-04-25 1999-11-09 Fisher Controls International, Inc. Double convoluted pliable pressure conversion unit
US6000675A (en) * 1997-04-25 1999-12-14 Fisher Controls International, Inc. Tension-spring return rotary valve actuator
US5988205A (en) * 1997-04-25 1999-11-23 Fisher Controls International, Inc. Rotary valve actuator with zero lost motion universal connection
WO2020010606A1 (en) * 2018-07-13 2020-01-16 Rosemount Inc. Process diaphragm seal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL288142A (en) * 1962-01-25 1900-01-01
US3590694A (en) * 1968-11-01 1971-07-06 Foxboro Co Pressure device having layered construction and pivoting seal with operator
US3717162A (en) * 1971-07-19 1973-02-20 Foxboro Co Cascade control system

Also Published As

Publication number Publication date
DE2234303A1 (en) 1973-01-25
NL7209526A (en) 1973-01-16
GB1397966A (en) 1975-06-18
BE785213A (en) 1972-12-21
FR2150570A1 (en) 1973-04-13
FR2150570B1 (en) 1974-06-21
IT959945B (en) 1973-11-10
US3814119A (en) 1974-06-04

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