초록 ▼

A pressure relief valve includes a flap pivoting around an axis parallel to the plane of the flap. A holder holds the flap in the closed position, which exerts a predetermined force in opposition to the force exerted by the pressure on a sealing side. The sealing side of the flap carries a skirt tha

A pressure relief valve includes a flap pivoting around an axis parallel to the plane of the flap. A holder holds the flap in the closed position, which exerts a predetermined force in opposition to the force exerted by the pressure on a sealing side. The sealing side of the flap carries a skirt that extends toward the seat of the valve and cooperates with the periphery of the seat. The skirt is at a predetermined height such that the valve moves out of its initial position by a predetermined value while maintaining the seal. The holder has a mass movable relative to the flap. The mass moves from an initial position to an inactive position when the flap moves from its closed position to its open position, in order to change the flap's center of gravity and thereby reduce the force exerted by the holder.

대표청구항 ▼

[ What is claimed is:] [1.] A valve (2) comprising:a flap (3) pivoting around an axis (4) parallel to a plane (P) of the flap, which flap moves between a closed position in which one (5) of the two sides (5, 6) of said flap called the sealing side (5) closes a passage (7) for the evacuation of exces

[ What is claimed is:] [1.] A valve (2) comprising:a flap (3) pivoting around an axis (4) parallel to a plane (P) of the flap, which flap moves between a closed position in which one (5) of the two sides (5, 6) of said flap called the sealing side (5) closes a passage (7) for the evacuation of excess pressure, and an open position, anda means (8) for holding the flap in the closed position, which exerts a predetermined force in opposition to the force exerted by the pressure on the Sealing side (5),which valve is characterized in that;the sealing side of the flap carries a skirt (30) that extends toward the seat of the valve, while cooperating with the periphery of said seat and the skirt at a predetermined height, allowing the valve to move out of its initial position by a predetermined value while maintaining the seal, andthe holding means (8) comprises a mass (9), movable relative to the flap, which moves from an initial position to an inactive position when the flap moves from its closed position to its open position, in order to change the flap's center of gravity and thereby reduce the force exerted by the holding means (8).