Device for preventing the backflow of fuel through a fuel vapour return line

摘要

A device (35) for preventing the backflow of fuel through a fuel vapour return line comprises a body (36) which defines a cavity (37) and has at least one inlet through-hole (38) which leads into the cavity (37) and through which at least one gas or vapour which may contain at least one liquid can enter and at least one outlet through-hole (39) which emerges from the cavity (37) and through which the gas or vapour can flow out, said cavity (37) housing internally at least one sensor element (42, 43, 54) designed to detect the presence of at least one liquid which has accumulated in the device (35). <IMAGE>