SERVICE FLUID FEEDING DEVICE

摘要

The invention relates to a device (30) for feeding a service fluid to a unit requiring such a service fluid. The inventive device comprises an add-on unit (16) which can be fastened to the unit and in which at least one fluid channel (20) extending from a surface (16a) of the add-on unit (16) is configured, and at least one screw element (22, 24) for feeding the service fluid to the fluid channel (20) or for obturating the fluid channel (20). Said screw element can be screwed from the surface (16a) of the add-on unit (16) into the at least one fluid channel (20). According to the invention, the at least one fluid channel (20) of the add-on unit (16) has a first section (32) of a larger width that is immediately adjacent to the surface (16a), a second section of a smaller width (36) and a transition area (34) having an annular surface (34a), which is disposed between the first section (32) and the second section (36). The portion of the screw element (22, 24) that can be screwed into the fluid channel (20) is dimensioned in such a way that the screw element (22, 24) can be sealingly engaged with the annular surface (34a).