FR2381349A1 - Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid - Google Patents

Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid

Info

Publication number
FR2381349A1
FR2381349A1 FR7801111A FR7801111A FR2381349A1 FR 2381349 A1 FR2381349 A1 FR 2381349A1 FR 7801111 A FR7801111 A FR 7801111A FR 7801111 A FR7801111 A FR 7801111A FR 2381349 A1 FR2381349 A1 FR 2381349A1
Authority
FR
France
Prior art keywords
motor
fluid
liquid
pump
regulating system
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.)
Pending
Application number
FR7801111A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19772707410 external-priority patent/DE2707410A1/en
Priority claimed from DE19772718470 external-priority patent/DE2718470A1/en
Priority claimed from DE19772718868 external-priority patent/DE2718868A1/en
Application filed by Individual filed Critical Individual
Publication of FR2381349A1 publication Critical patent/FR2381349A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
    • G05D16/2073—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source with a plurality of pressure sources

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

The system is designed to regulate non atmospheric pressures which are created or maintained by at least a motor (7) driven pump (3). The system has a device for controlling the pumps motor, and a circuit which automatically measures the load (absorbed power) of the pump motor during its operation. The load measurement is used for indirect measurement of the instantaneous pressure state in a pressure container (1). The system has a valve which is designed to limit the pressure difference from atmospheric. This valve is actuated by the load measuring circuit. A further circuit is used to stop the pump by mechanical or electrical decoupling of the motor from the pump.
FR7801111A 1977-02-21 1978-01-16 Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid Pending FR2381349A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19772707410 DE2707410A1 (en) 1977-02-21 1977-02-21 Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid
DE19772718470 DE2718470A1 (en) 1977-04-26 1977-04-26 Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid
DE19772718868 DE2718868A1 (en) 1977-04-28 1977-04-28 Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid

Publications (1)

Publication Number Publication Date
FR2381349A1 true FR2381349A1 (en) 1978-09-15

Family

ID=27187125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801111A Pending FR2381349A1 (en) 1977-02-21 1978-01-16 Liquid or gas pressure regulating system - uses measurement of power absorbed by compressor motor to indicate instantaneous pressure of fluid

Country Status (1)

Country Link
FR (1) FR2381349A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH155902A (en) * 1931-05-23 1932-07-15 Oerlikon Maschf Device for the automatic connection and disconnection of an electrical power consumer depending on a gas or liquid pressure.
US2947931A (en) * 1956-12-24 1960-08-02 Texaco Inc Motor control systems
US3529434A (en) * 1968-09-16 1970-09-22 Chauncey E Haugh Jr Control means for controlling a producer in response to a variable condition of the motive means driving the producer
FR2032594A5 (en) * 1970-01-06 1970-11-27 Hiroshi Chiba
US3902369A (en) * 1974-05-02 1975-09-02 Us Energy Measurement of the differential pressure of liquid metals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH155902A (en) * 1931-05-23 1932-07-15 Oerlikon Maschf Device for the automatic connection and disconnection of an electrical power consumer depending on a gas or liquid pressure.
US2947931A (en) * 1956-12-24 1960-08-02 Texaco Inc Motor control systems
US3529434A (en) * 1968-09-16 1970-09-22 Chauncey E Haugh Jr Control means for controlling a producer in response to a variable condition of the motive means driving the producer
FR2032594A5 (en) * 1970-01-06 1970-11-27 Hiroshi Chiba
US3902369A (en) * 1974-05-02 1975-09-02 Us Energy Measurement of the differential pressure of liquid metals

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