Global Patent Index - EP 0022394 B1

EP 0022394 B1 19831228 - METHOD AND DEVICE FOR CONTROLLING THE DEGASSING OF A HYDRAULIC CIRCUIT

Title (en)

METHOD AND DEVICE FOR CONTROLLING THE DEGASSING OF A HYDRAULIC CIRCUIT

Publication

EP 0022394 B1 19831228 (FR)

Application

EP 80400927 A 19800620

Priority

FR 7917496 A 19790705

Abstract (en)

[origin: EP0022394A1] 1. A method of monitoring the extraction of gas from a hydraulic circuit comprising a reservoir (10, 23) the high point of which is connected to a vacuum pump (12, 32) in which the gas extraction operation is carried out maintaining the vacuum above the liquid substantially constant, characterized in that the gas extraction operation is carried out maintaining in addition, the temperature and the exposed surface area of the liquid in the reservoir (10, 23) substantially constant, and in that the gas extraction is monitored by measuring the instantaneous flow of gas extracted by the vacuum pump (12, 32), this flow being a function of the total percentage of gas, dissolved and in suspension, contained in the liquid at the same instant.

IPC 1-7

F15B 21/04

IPC 8 full level

F15B 19/00 (2006.01); F15B 21/044 (2019.01)

CPC (source: EP)

F15B 19/005 (2013.01); F15B 21/044 (2013.01)

Designated contracting state (EPC)

AT BE CH DE GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0022394 A1 19810114; EP 0022394 B1 19831228; AT E5742 T1 19840115; DE 3065991 D1 19840202; FR 2460409 A1 19810123; FR 2460409 B1 19830610

DOCDB simple family (application)

EP 80400927 A 19800620; AT 80400927 T 19800620; DE 3065991 T 19800620; FR 7917496 A 19790705