Invention Grant
- Patent Title: Piston for internal combustion engine having high temperature-capable crown piece
-
Application No.: US15261856Application Date: 2016-09-09
-
Publication No.: US10662892B2Publication Date: 2020-05-26
- Inventor: Michael Pollard , Indrajith Kizhakkethara , Hugh McLean
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Brannon Sowers & Cracraft
- Main IPC: F02F3/00
- IPC: F02F3/00 ; B23K20/12 ; B23K20/227 ; C22C38/40 ; F02F3/22 ; F02F3/26 ; B23K101/00 ; B23K103/04
Abstract:
A piston for an internal combustion engine includes a compound piston body having a crown piece joined to a skirt piece by a circumferential weld. The skirt piece is formed of a lower temperature-capable steel such as a low alloy steel, and the crown piece is formed of a higher temperature-capable steel having a martensitic microstructure and containing about 10% wt. or greater of chromium. Related methodology for making a piston is also disclosed.
Public/Granted literature
- US20180073462A1 PISTON FOR INTERNAL COMBUSTION ENGINE HAVING HIGH TEMPERATURE-CAPABLE CROWN PIECE Public/Granted day:2018-03-15
Information query
