公开(公告)号：US11739763B2

公开(公告)日：2023-08-29

申请号：US17524582

申请日：2021-11-11

Applicant: Progress Rail Locomotive Inc.

Inventor： Gary R. Svihla ,  Xinmin Xu

IPC: F04D29/26 ,  F04D29/28 ,  F04D17/10 ,  F01D5/02

CPC classification number: F04D29/266 ,  F04D17/10 ,  F04D29/284 ,  F01D5/025 ,  F05D2220/40

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：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.