| 摘要 |
An exhaust pipe fuel injector capable of preventing fuel from remaining in a fuel supply system and thus capable of preventing the fuel supply system from being blocked due to carbonization of the fuel, is provided. The exhaust pipe fuel injector includes: a fuel injection nozzle (41) that injects the fuel into an exhaust pipe (21); a supply pipe (Lx) through which a mixed fluid of the fuel and air is supplied into the fuel injection nozzle (41); and a control unit (50). The control unit (50) has a function of continuing combustion until no fuel remains in the inside of the supply pipe (Lx) during regeneration of a diesel particulate filter (23). |
