Apparatus and method for introducing air into a hydropneumatic reservoir

Apparatus for introducing air into a hydropneumatic reservoir connected to pipework comprising a sensor of the pressure in the reservoir, a valve controlled by a signal from the sensor and opening into the open air on one side, a tube connected at one end to the valve and at the opposite end to the...

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Bibliographic Details
Main Author Roche, Emile
Format Patent
LanguageEnglish
Published 13.03.2012
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Summary:Apparatus for introducing air into a hydropneumatic reservoir connected to pipework comprising a sensor of the pressure in the reservoir, a valve controlled by a signal from the sensor and opening into the open air on one side, a tube connected at one end to the valve and at the opposite end to the pipework, a first check valve arranged in the tube to prevent liquid from travelling towards the open air, and a second check valve arranged in the pipework between the reservoir and the tube, the second check valve being in the closed state when the pressure in the pipework on the side nearest the tube is less than the pressure in the reservoir.