Pre-heating device

A vehicle comprising an engine, a fuel tank, fuel which is located in the fuel tank, a fuel supply system which supplies the fuel to the engine, and a preheating device (1) connected between the fuel tank and the engine,

• wherein the preheating device (1) comprises:
• a fuel transport device (22) having a fuel inlet (22a) and a fuel outlet (22b), and having a fuel transport channel (25) connecting the fuel inlet (22a) and the fuel outlet (22b);
• a heating medium transport device (21) having a heating medium inlet (21a) and a heating medium outlet (21b), as well as 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),
• wherein 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 via which a fuel transported in the fuel transport device (22) can be heated by a heating medium transported in the heating medium transport device (21), and/or by the at least one heating element (31),
• wherein the heating medium transport device (21) and the fuel transport device (22) are arranged in a metallic block (20),
• wherein the fuel transport channel (25) and the heating medium transport channel (26) are each designed to be meandering in the block (20), at least in sections, and in particular separated from each other in terms of flow, and/or in that the fuel transport device (22) is arranged in a metallic block (20),
• wherein the fuel transport channel (25) is designed to be at least partially meandering and the at least one heating element (31) is arranged in or on at least one cover plate (11a, 11b) of the metallic block (20),
• wherein the fuel transport channel (25) is incorporated into, milled into, or introduced into the metal block (22), and
• wherein the fuel transport channel (25) is arranged on a first side of the block (20), and in that the heating medium transport channel (26) is arranged on a second side of the block (20), which is in particular opposite the first side,
• wherein the fuel inlet (22a) of the preheating device (1) is connected to a line section leading to the fuel tank, and a fuel outlet (22b) of the preheating device (1) is connected to a line section leading to the engine, and
• wherein a heating medium is circulated through the heating medium transport device (21), and/or at least one heating element (31) is operated.