| 摘要 |
The invention seeks to enable a coupling to be made in which assembly forces during assembly of the gasket are small, even though the coupling is of large size, e.g. having a diameter equal to 50 mm. To achieve this object, the invention proposes making a gasket whose envelope in section presents a surface for bearing against the bottom of a groove that is smaller than the surface it presents for bearing against the fluid-feed endpiece. A fluid transfer coupling is for making between a fluid-feed endpiece and a connection tube, the coupling including an annular groove for housing the gasket, the gasket presenting a bearing face for bearing against the bottom of the groove and a bearing face for bearing against the endpiece, the groove presenting an opening and a groove bottom that is substantially flat and smaller in size than the opening. In section, the gasket of the invention presents a face for bearing against the bottom of the groove that is smaller than its face for bearing against the endpiece, the widths of the faces for bearing against the bottom and against the endpiece being determined respectively as a function of the dimensions of the bottom and of the opening of the groove. The invention is applicable to transferring air, gas, gasoline, etc., in particular under the engine hood of a motor vehicle.
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