FR2372980A1 - Hydraulic control system for servomotor - has variable frequency impulse generator to regulate flow valve in supply line connected to pressure vessel and throttled drain passage - Google Patents

Hydraulic control system for servomotor - has variable frequency impulse generator to regulate flow valve in supply line connected to pressure vessel and throttled drain passage

Info

Publication number
FR2372980A1
FR2372980A1 FR7736291A FR7736291A FR2372980A1 FR 2372980 A1 FR2372980 A1 FR 2372980A1 FR 7736291 A FR7736291 A FR 7736291A FR 7736291 A FR7736291 A FR 7736291A FR 2372980 A1 FR2372980 A1 FR 2372980A1
Authority
FR
France
Prior art keywords
control system
pressure vessel
variable frequency
hydraulic control
servomotor
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.)
Withdrawn
Application number
FR7736291A
Other languages
French (fr)
Inventor
Hjalmar Nevestveit
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.)
ABB Stal AB
Original Assignee
Stal Laval Turbin AB
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 Stal Laval Turbin AB filed Critical Stal Laval Turbin AB
Publication of FR2372980A1 publication Critical patent/FR2372980A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Flow Control (AREA)
  • Control Of Water Turbines (AREA)

Abstract

The hydraulic control system for e.g. a servo motor has a fluid supply, and a control valve for the flow between the supply and motor. the valve is controlled by an impulse generator, which supplies an impulse sequence of variable frequency. The flow to the motor (1) varies between max. and zero values, a throttle (6) being positioned in the passage (5) between supply and motor. Connected to this passage is a drainage passage with throttle (8), and a pressure vessel (7) to even out the flow.
FR7736291A 1976-12-06 1977-12-02 Hydraulic control system for servomotor - has variable frequency impulse generator to regulate flow valve in supply line connected to pressure vessel and throttled drain passage Withdrawn FR2372980A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7613642A SE402961B (en) 1976-12-06 1976-12-06 HYDRAULIC SYSTEM

Publications (1)

Publication Number Publication Date
FR2372980A1 true FR2372980A1 (en) 1978-06-30

Family

ID=20329661

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736291A Withdrawn FR2372980A1 (en) 1976-12-06 1977-12-02 Hydraulic control system for servomotor - has variable frequency impulse generator to regulate flow valve in supply line connected to pressure vessel and throttled drain passage

Country Status (4)

Country Link
JP (1) JPS5371782A (en)
DE (1) DE2752899A1 (en)
FR (1) FR2372980A1 (en)
SE (1) SE402961B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260370A (en) * 1991-10-12 1993-04-14 Daimler Benz Ag A device for controlling the flow of fluid to a fluid unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427204C2 (en) * 1984-07-24 1987-03-26 Voith Turbo Gmbh & Co Kg, 7180 Crailsheim Valve arrangement for controlling the flow of flowing media
DE3621526A1 (en) * 1986-06-27 1988-01-14 Scharnofske Helmut Dr Electro-pneumatic or electro-hydraulic control device for a pneumatically or hydraulically actuated actuator
DE102013205588B4 (en) * 2013-03-28 2017-03-09 Siemens Aktiengesellschaft valve system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260370A (en) * 1991-10-12 1993-04-14 Daimler Benz Ag A device for controlling the flow of fluid to a fluid unit
GB2260370B (en) * 1991-10-12 1995-11-29 Daimler Benz Ag A device for controlling the flow of fluid to a fluid unit

Also Published As

Publication number Publication date
DE2752899A1 (en) 1978-06-08
JPS5371782A (en) 1978-06-26
SE402961B (en) 1978-07-24
SE7613642L (en) 1978-06-07

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Legal Events

Date Code Title Description
ST Notification of lapse