A fuel tube (31) includes a tube main body (310), a first tubular section (311), and a second tubular section (312). The tube main body (310) defines a heating chamber (316). The first tubular section (311) extends through one side of the tube main body (3...

An automobile fuel pretreatment device (300, 310) includes an instantaneous constant-temperature heating device (3) including a fuel tube (31) which allows fuel to flow, a heating unit (32) positioned on and heating an outside surface of the fuel tube (31)...