Fuel reforming device

A fuel reformer (100) is provided with: an internal combustion engine (1) which is configured so as to have an injector (11) that injects fuel led out from a fuel tank (17) into a combustion chamber (10), and which performs combustion in the combustion chamber (10) by compression ignition; a reforming unit (20) having a reformer (19) that is interposed in a fuel supply path (18) from the fuel tank (17) to the injector (11) and that performs an oxidation reaction on the fuel stored in the fuel tank (17) by means of an oxidation reaction; a reforming control unit (53) that controls the operation of the reforming means (20); and an oxidation progress degree estimation unit (56) that estimates the progress degree of the oxidation reaction in the reformer (19). The reforming control unit (53) controls the operation of the reforming means (20) on the basis of the degree of progress of the oxidation reaction estimated by the oxidation progress degree estimation unit (56). 本发明提供一种燃料重整装置(100)，具备：内燃机(1)，其构成为具有将从燃料箱(17)