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    • 3. 发明授权
    • Engine exhaust heat recovery device, and energy supply apparatus using the same
    • 发动机废热回收装置,以及使用其的能量供给装置
    • US08448429B2
    • 2013-05-28
    • US12734099
    • 2008-10-09
    • Jiro FukudomeMasataka Sugimoto
    • Jiro FukudomeMasataka Sugimoto
    • F01N3/02F01N5/02
    • F01N5/02F01N1/08F01N3/2885F01N3/2889F01N2240/02F01N2470/02F01N2470/24F28D7/0066F28D7/103F28D7/106F28D21/0003F28F13/02F28F13/06Y02B30/52Y02T10/16
    • [Problems] Provided is a configuration in which a member is not interposed between exhaust gas and a partition wall of an engine coolant passage, and the exhaust gas is caused to directly collide with the partition wall of the engine coolant passage, thus raising the gas flow velocity in a heat exchange part, which enables further improving the exhaust heat recovery rate.[Means for Solving Problems] An engine exhaust gas heat recovery device (1) recovers heat from engine exhaust gas by performing heat exchange between the engine exhaust gas and engine coolant. A plurality of spray holes (20) facing an inner cylinder tube (31) of a coolant passage (3) have been provided in an outer tube (22) of an exhaust gas inflow tube (2), and the exhaust gas is caused to directly collide with the inner cylinder tube (31) of the coolant passage (3). A minimum distance from each of the spray holes (20) to the inner cylinder tube (31) of the coolant passage (3) is in a range of 1.5 to 7 times the diameter of the spray holes. A relationship between a total opening area of the spray holes (20) and an exhaust gas flow rate is (total spray hole area/exhaust gas mass flow rate)=2.0 to 4.5 (cm2/(kg/min)).
    • [问题]提供一种构造,其中,构件不被插入在发动机冷却剂通道的排气和分隔壁之间,并且排气直接与发动机冷却剂通道的分隔壁碰撞,从而使气体 热交换部的流速,能够进一步提高废热回收率。 解决问题的手段发动机废气热回收装置(1)通过在发动机废气和发动机冷却剂之间进行热交换来从发动机废气中回收热量。 在废气流入管(2)的外管(22)中设置有多个与冷却剂通路(3)的内筒管(31)相对的喷孔(20),排气 与冷却剂通道(3)的内筒管(31)直接碰撞。 从冷却剂通道(3)的每个喷孔(20)到内筒管(31)的最小距离在喷孔直径的1.5至7倍的范围内。 喷雾孔(20)的总开口面积和废气流量之间的关系为(总喷射孔面积/废气质量流量)= 2.0〜4.5(cm2 /(kg / min))。
    • 4. 发明申请
    • ENGINE EXHAUST HEAT RECOVERY DEVICE, AND ENERGY SUPPLY APPARATUS USING THE SAME
    • 发动机排气热回收装置及其能源供应装置
    • US20100205946A1
    • 2010-08-19
    • US12734099
    • 2008-10-09
    • Jiro FukudomeMasataka Sugimoto
    • Jiro FukudomeMasataka Sugimoto
    • F01N3/10F01N3/02F01N5/02
    • F01N5/02F01N1/08F01N3/2885F01N3/2889F01N2240/02F01N2470/02F01N2470/24F28D7/0066F28D7/103F28D7/106F28D21/0003F28F13/02F28F13/06Y02B30/52Y02T10/16
    • [Problems] Provided is a configuration in which a member is not interposed between exhaust gas and a partition wall of an engine coolant passage, and the exhaust gas is caused to directly collide with the partition wall of the engine coolant passage, thus raising the gas flow velocity in a heat exchange part, which enables further improving the exhaust heat recovery rate.[Means for Solving Problems] An engine exhaust gas heat recovery device (1) recovers heat from engine exhaust gas by performing heat exchange between the engine exhaust gas and engine coolant. A plurality of spray holes (20) facing an inner cylinder tube (31) of a coolant passage (3) have been provided in an outer tube (22) of an exhaust gas inflow tube (2), and the exhaust gas is caused to directly collide with the inner cylinder tube (31) of the coolant passage (3). A minimum distance from each of the spray holes (20) to the inner cylinder tube (31) of the coolant passage (3) is in a range of 1.5 to 7 times the diameter of the spray holes. A relationship between a total opening area of the spray holes (20) and an exhaust gas flow rate is (total spray hole area/exhaust gas mass flow rate)=2.0 to 4.5 (cm2/(kg/min)).
    • [问题]提供一种构造,其中构件不被插入在发动机冷却剂通道的排气和分隔壁之间,并且排气直接与发动机冷却剂通道的分隔壁碰撞,从而使气体 热交换部的流速,能够进一步提高废热回收率。 解决问题的手段发动机废气热回收装置(1)通过在发动机废气和发动机冷却剂之间进行热交换来从发动机废气中回收热量。 在废气流入管(2)的外管(22)中设置有多个与冷却剂通路(3)的内筒管(31)相对的喷孔(20),排气 与冷却剂通道(3)的内筒管(31)直接碰撞。 从冷却剂通道(3)的每个喷孔(20)到内筒管(31)的最小距离在喷孔直径的1.5至7倍的范围内。 喷雾孔(20)的总开口面积和废气流量之间的关系为(总喷射孔面积/废气质量流量)= 2.0〜4.5(cm2 /(kg / min))。