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    • 62. 发明申请
    • COOLING ARRANGEMENT FOR A PROPULSION UNIT
    • 冷却装置用于推进装置
    • US20150329191A1
    • 2015-11-19
    • US14711516
    • 2015-05-13
    • ABB Oy
    • Jussi KIISKILAVille KORTELAINENMirva NEVALAINENTero TAMMINEN
    • B63J2/12F04D29/58H02K9/10
    • B63J2/12B63H5/125B63H2005/1254B63H2005/1258F04D29/588F16C19/10F16C37/007F16C2300/14F16C2326/30H02K9/10
    • A propulsion unit is disclosed with a hollow strut having an upper portion with an upper end portion passing through a passage (P1) formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatably supported with a slewing bearing and sealed with a slewing seal towards the vessel. A cooling arrangement includes a cooling air duct system, at least one fan and at least one cooling unit. The slewing seal can include an upper slewing seal and a lower slewing seal at a vertical distance (H1) from each other with a space formed between the slewing seals. The upper end portion has openings (O1) into the space between the slewing seals. A first cooling air duct is directed to this space, whereby cooling air (L1) can be circulated through the first cooling air duct (400) into the space and through the openings (O1) in the upper end portion to the interior of the strut, or return air (L2) can be circulated from the strut in an opposite direction.
    • 公开了具有中空支柱的推进单元,该中空支柱具有上部,其上端部穿过形成在容器中的第一外底部和第二内底部之间的通道(P1)。 上端部可旋转地支承在回转支承上,并且朝向容器密封有回转密封。 冷却装置包括冷却风道系统,至少一个风扇和至少一个冷却单元。 回转密封件可包括彼此垂直距离(H1)的上部回转密封件和下部回转密封件,并在回转密封件之间形成空间。 上端部具有开口(O1)到回转密封件之间的空间。 第一冷却空气管道被引导到该空间,由此冷却空气(L1)可以通过第一冷却空气管道(400)循环进入空间并且通过上端部分中的开口(O1)到支柱的内部 ,或返回空气(L2)可以从支柱沿相反方向循环。
    • 63. 发明申请
    • Turbulence Enhancer for Keel Cooler
    • 用于龙骨冷却器的湍流增强器
    • US20150191237A1
    • 2015-07-09
    • US14663044
    • 2015-03-19
    • Duramax Marine, LLC
    • P. Charles Miller, JR.Frank E. Horvat
    • B63H21/38B63J2/12
    • B63H21/383F28D1/022F28D1/05366F28D1/05375F28F13/06F28F13/12
    • A keel cooler assembly comprising a coolant tube including a plurality of turbulence enhancers for improving the heat transfer of the coolant without substantially increasing pressure drop of the coolant. In one embodiment, the turbulence enhancers provide a means for generating turbulent wakes in the coolant for disrupting laminar boundary layers for improving heat transfer. In another embodiment, the turbulence enhancers provide a means for generating and propagating turbulent vortexes in the coolant to enhance mixing of the bulk coolant for improving heat transfer. In other embodiments, turbulators, including inserts or impediments, are provided having various configurations and being arranged in predetermined patterns for enhancing turbulence of the coolant for improving keel cooler heat transfer efficiency without substantially increasing pressure drop.
    • 一种龙骨冷却器组件,其包括冷却剂管,该冷却剂管包括多个湍流增强器,用于改善冷却剂的传热,而基本不增加冷却剂的压降。 在一个实施例中,湍流增强器提供了用于在冷却剂中产生湍流骤冷的装置,用于破坏层流边界层以改善传热。 在另一个实施例中,湍流增强器提供用于在冷却剂中产生和传播湍流漩涡的装置,以增强散装冷却剂的混合以改善传热。 在其它实施例中,提供了包括插入件或障碍物的紊流器,其具有各种构造并且以预定图案布置,以增强冷却剂的湍流,从而提高龙骨冷却器传热效率,而基本上不增加压降。