Device and method for regulating a gas flow rate
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorFrancois MARTIN
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Abstract
Device and method for regulating a flow rate of gas intended to supply a propulsion apparatus for a spacecraft comprising xenon tank, a circuit comprising a withdrawing pipe having an upstream end connected to the tank and a downstream end connected to a propulsion member, the withdrawing pipe comprising an isolation first valve, a regulating second valve and a member for measuring the pressure downstream of the regulating second valve. The regulating second valve regulates the flow rate and/or the determined pressure according to the pressure measured. The regulating second valve is a proportional valve of electrically operated variable throughout PCV type.
Claims14
1-10. (canceled)
A gas flow rate regulating device for regulating a flow rate of gas intended to supply a propulsion apparatus for a spacecraft, comprising a tank of pressurized gas and a fluidic circuit connected to the tank, said fluid circuit comprising a withdrawing pipe, wherein:
- said withdrawing pipe has an upstream end connected to the tank and at least one downstream end intended to be connected to a propulsion apparatus for a spacecraft;
- arranged in series from upstream to downstream, the withdrawing pipe comprises an isolating first valve, a regulating second valve, and a first pressure transducer, the first valve being an isolating valve, the second valve being a regulating valve;
- the first pressure transducer for measuring a pressure downstream of the second valve;
- the second valve provides defined regulation of flow rate and/or pressure in dependence on a pressure measured by the first pressure transducer;
- and
- at least the second valve is a proportional valve of the electrically controlled variable throughput “PCV” type.
Dependencies are inferred from the claim text.