公开(公告)号：US20150329191A1

公开(公告)日：2015-11-19

申请号：US14711516

申请日：2015-05-13

Applicant: ABB Oy

Inventor： Jussi KIISKILA ,  Ville KORTELAINEN ,  Mirva NEVALAINEN ,  Tero TAMMINEN

IPC: B63J2/12 ,  F04D29/58 ,  H02K9/10

CPC classification number: B63J2/12 ,  B63H5/125 ,  B63H2005/1254 ,  B63H2005/1258 ,  F04D29/588 ,  F16C19/10 ,  F16C37/007 ,  F16C2300/14 ,  F16C2326/30 ,  H02K9/10

Abstract: 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.

Abstract translation: 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。