公开(公告)号：US20180251200A1

公开(公告)日：2018-09-06

申请号：US15497037

申请日：2017-05-25

Applicant: GE Energy Power Conversion Technology Ltd

Inventor： Lionel JULLIAND ,  Loïc VINCENT

IPC: B63H5/125 ,  F16C19/26 ,  F16C33/66

CPC classification number: B63H5/125 ,  B63H25/42 ,  B63H2005/1258 ,  F16C19/26 ,  F16C33/1045 ,  F16C33/6659 ,  F16C2360/00 ,  F16N7/00 ,  F16N7/40

Abstract: This propulsion unit for an aquatic vehicle consists of a mobile casing equipped with an azimuth bearing due to its mounting in a pivot connection in relation to a hull element of the aquatic vehicle, the azimuth bearing having a closed volume provided to contain a hydraulic fluid, the propulsion unit having a drive shaft of a propeller, said shaft being mounted rotatably within the mobile casing by means of at least one bearing having a closed space adapted to contain a hydraulic fluid, an electrical machine being adapted to drive the rotary drive shaft in relation to the mobile casing, the propulsion unit having a supply circuit adapted to supply the closed space of the shaft bearing with hydraulic fluid.The supply circuit has a supply duct connecting the closed space of the shaft bearing and the closed volume of the azimuth bearing.