EXHAUST HEAT RECOVERY DEVICE

• Main Authors: INOUE, Katsufumi, HISANAGA, Tooru, MASUBUCHI, Hiroaki, NAKAJIMA, Shirou, HAYASHIDA, Mizuki
• Format: Patent
• Language: English; French; German
• Published: 14.04.2021
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

An exhaust heat recovery apparatus 1 includes a heat exchange flow passage 10A (heat exchange part 10) and a main exhaust gas flow passage 20A (bypass part 20) bypassing the heat exchange flow passage 10A on the exhaust passage. An exhaust gas flows from the main exhaust gas flow passage 20A to the heat exchange flow passage 10A through a gas flow-in port 11, and flows from the heat exchange flow passage 10A to the main exhaust gas flow passage 20A through a gas flow-out port 12. In the heat exchange part 10, heat is exchanged between the exhaust gas and a heat carrier. A valve 30 is provided downstream of the gas flow-out port 11 and on the main exhaust gas flow passage 20A in the bypass part 20. On a most downstream side of the heat exchange flow passage 10A, a return flow passage 17, in which the exhaust gas flows in a direction B1 opposite to a direction of the exhaust gas flow in the main exhaust gas flow passage 20A, is provided.