Valve element (10), comprising a main body, at least one inlet (101) and at least one outlet (102), a passage connecting the inlet and outlet, at least one burst disk (rupture disk) (13) or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element (15) provided
Valve element (10), comprising a main body, at least one inlet (101) and at least one outlet (102), a passage connecting the inlet and outlet, at least one burst disk (rupture disk) (13) or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element (15) provided with a piercing element (14) or the like for piercing the burst disk. The piston element (15) is provided with a passage (17) for a pressure medium, said passage extending axially through the piston element from one first side to one second side, that the piston element is provided with a second burst disk or equivalent which, when unbroken, closes the passage (17) provided in the piston element.
대표청구항▼
The invention claimed is: 1. Valve element (10), comprising a main body, at least one inlet (101) and at least one outlet (102), a passage connecting the inlet and outlet, at least one burst disk (rupture disk) (13) or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a
The invention claimed is: 1. Valve element (10), comprising a main body, at least one inlet (101) and at least one outlet (102), a passage connecting the inlet and outlet, at least one burst disk (rupture disk) (13) or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element (15) provided with a piercing element (14) for piercing the burst disk, characterized in that the piston element (15) is provided with a passage ( 17) for a pressure medium, said passage extending axially through the piston element from one first side to one second side, that the piston element is provided with a second burst disk or equivalent which, when unbroken, closes the passage (17) provided in the piston element, and that the device comprises means (19, 22) for piercing the second burst disk (18). 2. Valve element according to claim 1, characterized in that the piercing element (14) is provided with at least one aperture (23) extending from the outer surface of the piston element to the passage (17) leading through the piston element. 3. Valve element according to claim 1, characterized in that the means for piercing the second burst disk comprise an actuating element (19), preferably a pyrotechnical triggering device, whose piston (20), when triggering occurs, effects the piercing of the second burst disk (18) either directly or via an intermediate piece (22). 4. Valve element according to claim 3, characterized in that the intermediate piece is a ball (22). 5. Valve element according to claim 1, characterized in that the second burst disk (8), when unbroken, closes a connection from the inlet (101) to a cylinder (12), at least to the piston (15) side of the cylinder. 6. Valve element according to claim 1, characterized in that a piston rod (16) of the piston element is sealedly fitted against a wall of a cylinder. 7. Valve element according to 2, characterized in that the means for piercing the second burst disk comprise an actuating element (19), preferably a pyrotechnical triggering device, whose piston (20), when triggering occurs, effects the piercing of the second burst disk (18) either directly or via an intermediate piece (22). 8. Valve element according to claim 2, characterized in that the second burst disk (8), when unbroken, closes a connection from the inlet (101) to a cylinder (12), at least to the piston element (15) side of the cylinder. 9. Valve element according to claim 3, characterized in that the second burst disk (8), when unbroken, closes a connection from the inlet (101) to a cylinder (12), at least to the piston element (15) side of the cylinder. 10. Valve element according to claim 4, characterized in that the second burst disk (8), when unbroken, closes a connection from the inlet (101) to a cylinder (12), at least to the piston element (15) side of the cylinder. 11. Valve element according to claim 2, characterized in that a piston rod (16) of the piston element is sealedly fitted against a wall of a cylinder. 12. Valve element according to claim 3, characterized in that a piston rod (16) of the piston element is sealedly fitted against a wall of a cylinder. 13. Valve element according to claim 4, characterized in that a piston rod (16) of the piston element is sealedly fitted against a wall of the cylinder. 14. Valve element according to claim 5, characterized in that a piston rod (16) of the piston element is sealedly fitted against a wall of the cylinder.
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Mackal Glenn H., Inflation system with pneumatic assist.
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