PREHEATING DEVICE

The invention relates to a pre-heating device (1) for pre-heating fuel of an internal combustion engine by means of a heating medium, which pre-heating device has a fuel transport device (22), which has a fuel inlet (22a), a fuel outlet (22b) and a fuel transport channel (25) connecting the fuel inlet (22a) and the fuel outlet (22b). The pre-heating device (1) also has: a heating-medium transport device (21), which has a heating-medium inlet (21a), a heating-medium outlet (21b) and a heating-medium transport channel (26) connecting the heating-medium inlet (21a) and the heating-medium outlet (21b); and/or at least one heating element (31). The fuel transport device (22) and the heating-medium transport device (21) and/or the at least one heating element (31) are in thermal contact with each other and thus form a heat exchanger, by means of which a fuel transported in the fuel transport device (22) can be heated by means of a heating medium transported in the heating-medium transport device (21) and/or by means of the at least one heating element (31). The heating-medium transport device (21) and the fuel transport device (22) are arranged in a metal block (20), the fuel transport channel (25) and the heating-medium transport channel (26) each being formed meanderingly in the block (20) at least in some sections and in particular being fluidically separated from each other. It is also possible to arrange the fuel transport device (22) in a metal block (20), the fuel transport channel (25) being formed meanderingly at least in some sections and the at least one heating element (31) being arranged in or on at least one cover plate (11a, 11b) of the metal block (20). Dispositif de préchauffage (1) pour le préchauffage de carburant d'un moteur à combustion interne comprenant un liquide thermique, comprenant un dispositif de transport de carburant (22) ayant une entrée de carburant (22a) et une sortie de carburant (22b) ainsi qu'un canal de transport de carburant (25) reliant l'entrée de carburant (22a) et la sortie de carburant (22b). Le dispositif de préchauffage (1) comprend en outre, un dispositif de transport de liquide thermique (21) ayant une entrée de liquide thermique (21a) et une sortie de liquide thermique (21b) ainsi qu'un canal de transport de carburant (26) reliant l'entrée de liquide thermique (21a) et la sortie de liquide thermique (21b) et/ou au moins un élément chauffant (31). Le dispositif de transport de carburant (22) et le dispositif de tra