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Title: System and method of making a crankshaft with alternate materials

Abstract

A crankshaft for an internal combustion engine is provided. The crankshaft comprises at least four main journals aligned on a crankshaft axis of rotation defining a centerline. The crankshaft further comprises at least three pin journals. Each pin journal is disposed about a respective pin journal axis and positioned between the main journals. Each of the pin journals is joined to a pair of crank arms. Each pair of crank arms is joined to a respective main journal. Each of the main journals, pin journals, and crank arms is made of a first metallic material. Each crank arm has an over-molded counterweight metallurgically bonded thereto. Each counterweight is disposed opposite a respective pin journal relative to the centerline for balance and stability. Each counterweight is made of a second metallic material. The crankshaft has a weight ratio of the second metallic material to the first metallic material of between 0.20 to 0.50.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
GM Global Technology Operations, LLC, Detroit, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1998258
Patent Number(s):
11619255
Application Number:
17/698,410
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
DOE Contract Number:  
EE0008877
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/18/2022
Country of Publication:
United States
Language:
English

Citation Formats

Klemstine, David C., Cao, Guirong, Yang, Jianghuai, Berry, William A., Wang, Qigui, Sachdev, Anil K., and Burkholder, Steven L. System and method of making a crankshaft with alternate materials. United States: N. p., 2023. Web.
Klemstine, David C., Cao, Guirong, Yang, Jianghuai, Berry, William A., Wang, Qigui, Sachdev, Anil K., & Burkholder, Steven L. System and method of making a crankshaft with alternate materials. United States.
Klemstine, David C., Cao, Guirong, Yang, Jianghuai, Berry, William A., Wang, Qigui, Sachdev, Anil K., and Burkholder, Steven L. Tue . "System and method of making a crankshaft with alternate materials". United States. https://www.osti.gov/servlets/purl/1998258.
@article{osti_1998258,
title = {System and method of making a crankshaft with alternate materials},
author = {Klemstine, David C. and Cao, Guirong and Yang, Jianghuai and Berry, William A. and Wang, Qigui and Sachdev, Anil K. and Burkholder, Steven L.},
abstractNote = {A crankshaft for an internal combustion engine is provided. The crankshaft comprises at least four main journals aligned on a crankshaft axis of rotation defining a centerline. The crankshaft further comprises at least three pin journals. Each pin journal is disposed about a respective pin journal axis and positioned between the main journals. Each of the pin journals is joined to a pair of crank arms. Each pair of crank arms is joined to a respective main journal. Each of the main journals, pin journals, and crank arms is made of a first metallic material. Each crank arm has an over-molded counterweight metallurgically bonded thereto. Each counterweight is disposed opposite a respective pin journal relative to the centerline for balance and stability. Each counterweight is made of a second metallic material. The crankshaft has a weight ratio of the second metallic material to the first metallic material of between 0.20 to 0.50.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {4}
}

Works referenced in this record:

Method of Manufacturing a Crankshaft from a High Shrink Metal Alloy
patent-application, March 2016


Crankshaft for an Internal Combustion Engine
patent-application, June 2013


Crankshaft and Method of Manufacture
patent-application, February 2020


Engine crankshaft structure
patent, March 1988


Method of making a crankshaft
patent, May 1989


Sliding Surface
patent-application, May 2016


High-Modulus, High-Strength Nodular Iron and Crankshaft
patent-application, April 2021


Counterweight, and crankshaft with the counterweight
patent, March 2020


Balance Weight System of Crankshaft
patent-application, February 2010


Nodular Iron Cast Crankshaft with Forged Steel Core Insert
patent-application, March 2016


Composite ferrous castings
patent, June 1988