| 摘要 |
PURPOSE:To improve amenity and heating efficiency, by a method wherein, in a heating device for a vehicle employing a ceramic engine, a heating medium is heated by means of the heat of exhaust gas, discharged air is heated through a heater core, and heat is dissipated in a car room from a heat panel. CONSTITUTION:During heating, an on-off valve 72 is brought into an ON-state, an on-off valve 71 is brought into an OFF-state, and a switching valve 42 is set to the opening side of a bypass mode. This constitution causes circulation of water through a casing 51, a heater core 52, a heat panel 53, and a water pump 54. Thus, circulating water is heated by the casing 51, and dissipates heat to air-conditioned air in an air conditioning duct 6 by means of a heater core 52. Temperature increasing air is discharged through a defrost discharge port 61 or a foot discharge port 62. After water dissipating heat further dissipates heat to a floor 22 by means of a heat panel 53 to perform heating of a car room, it is returned to the casing 51. This constitution prevents reduction of an exhaust gas temperature and seizure of an exhaust system, and improves heating efficiency and amenity. |
