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US 2010/0101442 A1Published application
Autonomous pyrotechnical method and device for injecting a fluid
AssigneeSNPE Materiaux Energetiques
InventorsCorinne Gauthier, Pierre Yvart, Laurent Blarasin
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Abstract
The invention relates to a method and to an autonomous device (10d) for injecting a fluid (F), that uses pyrotechnical means (1d). The invention can be used in particular for injecting a protection fluid (F) into a system that is subject to overheating (8d). The method is characterised in that it uses a thermally triggered charge (1d).
Claims16
A method for the autonomous injection of a fluid, wherein it comprises:
- the thermal initiation and the combustion of at least one thermally initiatable gas-generating pyrotechnic charge;
- the generation of combustion gases, said gases consisting of those resulting from said combustion of said at least one thermally initiatable gas-generating pyrotechnic charge or consisting of those resulting from said combustion of said at least one thermally initiatable gas-generating pyrotechnic charge and the combustion of at least one combustion-initiated pyrotechnic charge combustion-initiated by said at least one thermally initiatable pyrotechnic charge;
- the pressurization of said fluid under the action of said combustion gases;
- and
- the delivery of said pressurized fluid.
2 more elements
A device for the autonomous injection of a fluid, wherein its structure comprises:
- at least one housing of suitable thermal conductivity, capable of accommodating at least one thermally initiatable combustion-gas-generating pyrotechnic charge which neither includes, nor is connected to, ignition, especially mechanical, electrical or radiative ignition, controls;
- and
- a reservoir suitable for storing said unpressurized fluid, equipped with at least one means for delivering said pressurized fluid through the action, directly or via a movable separating member between said at least one housing and said reservoir, of said combustion gases.
Dependencies are inferred from the claim text.