公开(公告)号：US10933496B2

公开(公告)日：2021-03-02

申请号：US16159992

申请日：2018-10-15

Applicant: Caterpillar Inc.

Inventor： Kegan Jon Luick ,  Timothy Graham

IPC: B23P6/02 ,  B23P6/04 ,  F01C21/10 ,  F04C18/08

Abstract: A method for repairing a worn portion in an inner diameter surface of a bore of a cast iron part is disclosed. The inner diameter surface of the bore may have an original surface geometry prior to wear. The method may comprise forming a crescent-shaped pocket in the inner diameter surface of the bore to remove the worn portion, installing an insert in the crescent-shaped pocket, and post-machining the insert to form a crescent-shaped insert that is flush with the original surface geometry of the bore inner surface diameter.

公开(公告)号：US20180019577A1

公开(公告)日：2018-01-18

申请号：US15212078

申请日：2016-07-15

Applicant: Caterpillar Inc.

Inventor： Michael Gerstner ,  Timothy Graham ,  Dianqi Fang

IPC: H01T13/20 ,  H01T21/02 ,  F02F1/24

CPC classification number: H01T13/20 ,  F02F1/242 ,  F02P13/00 ,  H01T13/08 ,  H01T13/467 ,  H01T13/54 ,  H01T21/02

Abstract: A remanufactured sparkplug includes a housing, an insulator within the housing, and first and second electrodes. The first electrode and the second electrode form a plurality of spark gaps at a plurality of new spark gap locations, and a plurality of spark-induced erosions are formed in the second electrode at a plurality of former spark gap locations that are circumferentially offset from the new spark gap locations.

公开(公告)号：US09859688B1

公开(公告)日：2018-01-02

申请号：US15212078

申请日：2016-07-15

Applicant: Caterpillar Inc.

Inventor： Michael Gerstner ,  Timothy Graham ,  Dianqi Fang

IPC: H01T13/20 ,  H01T21/02 ,  F02F1/24

CPC classification number: H01T13/20 ,  F02F1/242 ,  F02P13/00 ,  H01T13/08 ,  H01T13/467 ,  H01T13/54 ,  H01T21/02

Abstract: A remanufactured sparkplug includes a housing, an insulator within the housing, and first and second electrodes. The first electrode and the second electrode form a plurality of spark gaps at a plurality of new spark gap locations, and a plurality of spark-induced erosions are formed in the second electrode at a plurality of former spark gap locations that are circumferentially offset from the new spark gap locations.