FR2231292A5 - Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels - Google Patents

Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels

Info

Publication number
FR2231292A5
FR2231292A5 FR7318627A FR7318627A FR2231292A5 FR 2231292 A5 FR2231292 A5 FR 2231292A5 FR 7318627 A FR7318627 A FR 7318627A FR 7318627 A FR7318627 A FR 7318627A FR 2231292 A5 FR2231292 A5 FR 2231292A5
Authority
FR
France
Prior art keywords
output
input
flow controller
varied
hydraulic flow
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
FR7318627A
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.)
LEVARDON RAYMOND FR
Original Assignee
LEVARDON RAYMOND 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 by LEVARDON RAYMOND FR filed Critical LEVARDON RAYMOND FR
Priority to FR7318627A priority Critical patent/FR2231292A5/en
Application granted granted Critical
Publication of FR2231292A5 publication Critical patent/FR2231292A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A hydraulic flow controller has an input (2) a work output (10) and an overflow (30). The work output flow can be varied conventionally by a slideable valve (8) with axial slots to vary the area of the passage. The output can also be varied in accord with the input by a sensing piston (19) with three areas exposed to three pressures. The input pressure on a small circular area (20) is assisted by the output pressure acting on an annular area and opposed by the pressure after a preset reducing valve (3) acting on a large circular area (26). The sensing piston takes up a balance position, and permits a certain fraction of the fluid to pass to the overflow, any increase in the input supply causes a new balance to be set up increasing the output in proportion.
FR7318627A 1973-05-21 1973-05-21 Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels Expired FR2231292A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7318627A FR2231292A5 (en) 1973-05-21 1973-05-21 Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7318627A FR2231292A5 (en) 1973-05-21 1973-05-21 Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels

Publications (1)

Publication Number Publication Date
FR2231292A5 true FR2231292A5 (en) 1974-12-20

Family

ID=9119790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7318627A Expired FR2231292A5 (en) 1973-05-21 1973-05-21 Hydraulic flow controller also has output varied by source - by use of internal pressure feedback channels

Country Status (1)

Country Link
FR (1) FR2231292A5 (en)

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