Patent Number: 6,296,451

Title: Process and installation for the regulation of a central unit for the production of medical vacuum

Abstract: A process and installation for the regulation of the vacuum level prevailing in a network of vacuum conduits in a hospital building comprises one or several vacuum pumps connected pneumatically to the vacuum conduits (CV); elements (C2) for determining the pressure to determine the underpressure prevailing in the vacuum conduits (CV); a pilot device (MP) controlling at least one vacuum pump, at least one line for connection to the atmosphere (L1, L2) having a first end connected pneumatically to the vacuum conduits and having a second free end; and control elements (EV1, EV2) for the flow of fluid arranged in the line for connection to the atmosphere (L1, L2) to permit controlling the passage of air in the line connecting to the atmosphere.

Inventors: Guillet-Belaud; Emmanuel (Paris, FR), Montausier; Robert (Vaureal, FR), Beauvois; Didier (Paris, FR)

Assignee: Air Liquide Sante (International)

International Classification: F04D 27/00 (20060101); G05D 16/20 (20060101); F04B 019/24 (); F04B 053/00 ()

Expiration Date: 10/02/2018