公开(公告)号：US20230147254A1

公开(公告)日：2023-05-11

申请号：US17524582

申请日：2021-11-11

Applicant: Progress Rail Locomotive Inc.

Inventor： Gary R. SVIHLA ,  Xinmin Xu

IPC: F04D29/26 ,  F04D17/10 ,  F04D29/28

CPC classification number: F04D29/266 ,  F04D17/10 ,  F04D29/284

Abstract: An impeller attach mechanism for a turbocharger including a stud extending from a central bore of a compressor impeller toward a turbine wheel, the stud having a first threaded region and a second threaded region; a shaft coupled to the turbine wheel and extending toward the compressor impeller, the shaft having a leading portion, the leading portion having a threaded interior configured to engage the second threaded region of the stud; and an insert having an internal portion and an external portion, the internal portion having a threaded external surface to engage the compressor impeller, the internal portion having a threaded internal surface to engage the first threaded region of the stud, the external portion configured to surround the leading portion of the shaft.

公开(公告)号：US20230142571A1

公开(公告)日：2023-05-11

申请号：US17524518

申请日：2021-11-11

Applicant: Progress Rail Locomotive Inc.

Inventor： Gary R. SVIHLA ,  Shannon W. OMORI

IPC: F01D25/24 ,  F01D21/04 ,  F01D25/28

CPC classification number: F01D25/24 ,  F01D21/045 ,  F01D25/28 ,  F05D2220/40 ,  F05D2230/64 ,  F05D2240/14 ,  F05D2260/30

Abstract: Disclosed is a compressor housing and method of assembling. The compressor housing may comprise an outer volute, a cavity, an impeller cover, a compressor diffuser and an inner volute. The outer volute includes a back wall and a curved casing. The back wall may include a receptacle and a first plurality of annular steps. The receptacle configured to receive an alignment pin. The cavity is configured to receive the compressor impeller and is at least partially defined by the back wall of the outer volute and the impeller cover. The impeller cover is configured to fragment during impact with the compressor impeller during a failure condition of the compressor impeller. The impeller cover is disposed between the inner volute and the cavity. The compressor diffuser is disposed between the back wall and the impeller cover.