DEVICE FOR PREHEATING FLUID, IN PARTICULAR COOLANT FOR A COMBUSTION ENGINE

摘要

The invention concerns a device for heating a fluid (2), comprising a heating body (4) traversed by a passage (6, 8) for the fluid and provided with at least one groove (14) on the outer surface of same; at least one electrical resistor (24) housed in the or one of the grooves (14) of the heating body. The device further comprises at least one closing plate (20) for closing the or one of the grooves (14), covering the or one of the resistors (24).