| 摘要 |
An exhaust gas heating apparatus (31) according to the present invention comprises an expansion chamber (37) having an inflow port (42) and an outflow port (43), a fuel supplying element (38) for supplying fuel into the expansion chamber, a fuel diffusing plate (39) for dispersing the fuel in the expansion chamber, and ignition means (40) for igniting the fuel in the expansion chamber, wherein an exhaust passage (28) communicated with the inflow port is connected tangentially to a circular peripheral surface (37a) of the expansion chamber, an axis (A) thereof is deviated from an axis (B) of the exhaust passage communicated with the outflow port, and the fuel diffusing plate extends along the peripheral surface of the expansion chamber from close proximity of the inflow port in such a manner as to form a partition between the inflow and outflow ports.
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