| 主权项 |
1. A fluid circulation valve comprising:
a body defining a fluid flow duct; a flap able to move between a closed position, preventing circulation of the fluid in the duct, and an open position, allowing the fluid to circulate in the duct; and a seal having only one opening for the passage of the fluid, wherein the flap is designed to be able to close the opening in the seal when it is in the closed position, wherein the flap is equipped with a first wing and with a second wing, the first and second wings being provided one on either side of the seal when the flap is in the closed position, the flap comprising an intermediate zone connecting the first wing and the second wing that passes through the opening in the seal, wherein the seal comprises a planar zone having a first surface against which the first wing comes to bear and a second surface against which the second wing comes to bear when the flap is in the closed position, and wherein the first surface is substantially parallel to the second surface, the opening comprising smaller and larger rectangles disposed side-by-side, the smaller rectangle having a dimension that is shorter than the larger rectangle along an axis of articulation of the flap, and the second wing having a rectangular shape shutting off a part of the opening that comprises the smaller rectangle, the first wing having a rectangular shape shutting off a part of the opening that comprises the larger rectangle. |
