公开(公告)号：US09890846B2

公开(公告)日：2018-02-13

申请号：US14940269

申请日：2015-11-13

Applicant: General Electric Company

Inventor： Mark Gregory Wotzak ,  Duane Howard Anstead ,  Bojan Lukovic ,  James John Luz ,  Thomas Charles McCarthy ,  Keith Beatty

IPC: F16H57/02 ,  F16H57/04 ,  F02C7/32 ,  F16H57/027 ,  F16H57/029

CPC classification number: F16H57/027 ,  F02C7/32 ,  F05D2260/605 ,  F05D2260/608 ,  F16H57/029 ,  F16H57/0456 ,  F16H57/0472

Abstract: A gearbox vent apparatus includes: a gearbox; an accessory contained in a case mounted to the gearbox such than an interior space of the case communicates with an interior space of the gearbox, wherein the case includes a sidewall and an endwall, a hollow drive shaft mounted for rotation inside the case; an annular first seal element mounted to the drive shaft; an annular second seal element mounted to the case and contacting the first seal element so as to define a sealing interface; and a vent tube having a forward end coupled to the endwall in fluid communication with the drive shaft.