EXHAUST HEAT EXCHANGER

• Main Authors: MATSUDAIRA NORIMITSU, HAYASHI EIKI, YAMANAKA MAYUMI, IWASAKI MITSURU
• Format: Patent
• Language: English; Japanese
• Published: 20.12.2018
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To provide an exhaust heat exchanger capable of preventing condensate water from being dispersed to the downstream side of an exhaust flow direction.SOLUTION: Exhaust heat exchangers 1, 10 according to a present invention for exchanging heat between exhaust gas discharged from an internal combustion engine and a cooling fluid include an exterior case 2 having an inlet and an outlet of the exhaust gas, a tube 3 stored in the exterior case 2 and having an exhaust flow passage 33 through which the exhaust gas flows, a fin 6 arranged in the exhaust flow passage 33, and extension portions 30, 60 provided on at least one of the tube 3 and the fin 6 and extending from an inner side toward the outlet of the exterior case 2.SELECTED DRAWING: Figure 1 【課題】凝縮水が排気流れ方向の下流側に飛散することを防止できる排気熱交換器を提供すること。【解決手段】 本発明に係る排気熱交換器１，１０は、内燃機関から排出される排気と冷却流体との間で熱交換を行う排気熱交換器１，１０であって、排気の入口と出口を備えた外装ケース２と、外装ケース２に収容されており排気が流れる排気流路３３が形成されたチューブ３と、排気流路３３に配置されたフィン６と、チューブ３及びフィン６の少なくとも一方に設けられ、外装ケース２の内側から出口に向けて延びる延長部３０，６０と、を有する。【選択図】図１