公开(公告)号：US09849959B1

公开(公告)日：2017-12-26

申请号：US15286860

申请日：2016-10-06

Applicant: Caterpillar Inc.

Inventor： Patrick McDonald ,  Andrew A. Hutchison ,  Jonathan Steinbrink ,  Patrick Lee ,  Hashim M. Marzuq

IPC: B63H23/34 ,  B63H23/06 ,  B63H23/36

CPC classification number: B63H5/10 ,  B63H5/1252 ,  B63H23/04 ,  B63H2005/1256 ,  B63H2020/025

Abstract: A drive train in a marine vessel includes a marine pod drive unit and an inboard engine operatively connected by a driveshaft. To protectively enclose the driveshaft, a guard sleeve having a tubular configuration is disposed around the driveshaft and extends between the marine pod drive unit and the inboard engine. The first sleeve end of the guard sleeve is coupled to a first coupling collar on the marine pod drive unit using a first annular packing and the second sleeve end is coupled to a second coupling collar on the inboard engine using a second annular packing. The first and second annular packings enable relative angular displacement between the guard sleeve and the marine pod drive unit or the inboard engine.