| 摘要 |
PURPOSE:To reduce a heat loss in a heat accumulating apparatus for waste heat in an internal combustion engine by a method wherein a heat transfer medium supplying conduit and a heat transfer medium discharging conduit are formed by ceramic material. CONSTITUTION:An inner casing 51 is arranged to wind around a core 40 of a heat accumulating device. An outer casing 50 is installed in a spaced apart relation with an outside part of the inner casing 51. A thermal insulating region 41 is formed between the inner casing 51 and the outer casing 50. A heat transfer medium supplying conduit 17 for feeding the heat transfer medium and a heat transfer medium discharging conduit 18 for discharging heat transfer medium against the heat accumulating core 40 are arranged within the inner easing 51 and passed through the outer casing 50 to project outwardly. The discharging conduit 18 is constructed by a metallic pipe 61 closely fitted and fixed to an inner circumferential surface of a fixing hole of the inner easing 51, a metallic bellows pipe 62 at a thermal insulated region 41, and a ceramic pipe 60 connected to the metallic bellows 62, closely fitted and fixed to an inner circumferential surface of a fixing hole of the outer casing 50. The supplying conduit 17 is also similarly constructed. |
