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    • 1. 发明公开
    • Sound attenuating heat exchanger for an internal combustion engine
    • SchalldämpfenderWärmetauscherfüreinen Verbrennungsmotor
    • EP2559877A1
    • 2013-02-20
    • EP12156010.6
    • 2012-02-17
    • United Technologies Corporation
    • Gerlach, David W.McCormick, Duane C.
    • F01N5/02F01N1/02
    • F01N1/023F01N5/02F01N2230/08F01N2240/02F01N2490/15Y02T10/16
    • A sound attenuating heat exchanger (16) for an internal combustion engine (12) includes a housing (24), a barrier wall (26) and a fin (28). The housing (24) includes an exhaust inlet (44), an exhaust outlet (46), a coolant inlet (48) and a coolant outlet (50). The exhaust inlet (44) is connected to the exhaust outlet (46) by an exhaust flow passage (52). The coolant inlet (48) is connected to the coolant outlet (50) by a coolant flow passage (54). The barrier wall (26) fluidly separates the exhaust flow passage (52) from the coolant flow passage (54). The fin (28) extends from the barrier wall (26) into the exhaust flow passage (52), and includes a resonator (76,78) adapted to attenuate sound waves travelling through exhaust gas within the exhaust flow passage (52). The barrier wall (26) and the fins (28) are adapted to exchange heat energy between the exhaust gas flowing through the exhaust flow passage (52) and coolant flowing through the coolant flow passage (54).
    • 用于内燃机(12)的声衰减热交换器(16)包括壳体(24),阻挡壁(26)和翅片(28)。 壳体(24)包括排气入口(44),排气出口(46),冷却剂入口(48)和冷却剂出口(50)。 排气入口(44)通过排气流路(52)与排气口(46)连接。 冷却剂入口(48)通过冷却剂流动通道(54)连接到冷却剂出口(50)。 阻挡壁(26)使排气流路(52)与冷却剂流路(54)流体分离。 翅片(28)从阻挡壁(26)延伸到排气流通道(52)中,并且包括适于衰减在废气流动通道(52)内排出的废气的声波的谐振器(76,78)。 阻挡壁(26)和翅片(28)适于在流过废气流通道(52)的废气和流过冷却剂流动通道(54)的冷却剂之间交换热能。