Device for draining a tank of a spaceborne system

A device (1) for draining a tank of fluid under pressure pertaining to a space system, said tank being in fluid communication with an engine or another tank through a conduit in which said fluid is able to circulate under normal operation,

• wherein said device includes:
• a collar that is suitable to enclose said conduit with said conduit in said fluid communication,
• a pyrotechnic actuator installed in said collar and suitable to perforate said conduit (2), said pyrotechnic actuator comprising a pyrotechnic cartridge (5) for perforation of said conduit, oriented radially towards the conduit (2), and
• an anvil (11) installed in said collar diametrically opposed to the cartridge in relation to the conduit, wherein,
• said collar comprises first and second half-bushes (4a, 4b),
• said pyrotechnic cartridge (5) for perforation being installed in said first half-bush (4a) and said anvil (11) being installed in said second half-bush (4b),
• said conduit being an existing conduit in said fluid communication, said collar enclosing said conduit by each of said first and second half-bushes being placed on opposite sides of said conduit and then being fixed together to each other.

A device (1) for draining a tank of fluid under pressure pertaining to a space system, said device comprising:

• a collar that encloses a conduit in fluid communication with said tank containing said fluid under pressure, wherein said tank is one of the group consisting of an engine and another tank;
• a pyrotechnic actuator installed in said collar, said pyrotechnic actuator comprising a pyrotechnic cartridge (5) suitable to perforate said conduit (2) and create a perforation in said conduit, said pyrotechnic cartridge oriented radially towards the conduit (2) adjacent a first wall thickness (2a) of the conduit (2);
• and
• an anvil (11) installed in said collar diametrically opposed to the cartridge in relation to the conduit adjacent a second wall thickness (2b) of the conduit (2), the anvil collecting debris generated by the perforation in said conduit, wherein,
• said collar comprises first and second half-bushes (4a, 4b),
• said pyrotechnic cartridge (5) for perforation is installed in said first half-bush (4a) and said anvil (11) is installed in said second half-bush (4b), and
• said collar enclosing said conduit in fluid communication by each of said first and second half-bushes being placed on opposite sides of said conduit and then being fixed together to each other.