Cylinder bore having variable coating

Maki, Clifford E.; Elie, Larry Dean; Beyer, Timothy George; Gangopadhyay, Arup Kumar; Ghaednia, Hamed; Boileau, James Maurice

Title: Cylinder bore having variable coating

Patent · Tue Nov 19 00:00:00 EST 2019

OSTI ID:1600299

Maki, Clifford E.; Elie, Larry Dean; Beyer, Timothy George; Gangopadhyay, Arup Kumar; Ghaednia, Hamed; Boileau, James Maurice

Engine blocks and methods of forming the same are disclosed. The engine block may comprise a body including at least one cylindrical engine bore wall having a longitudinal axis and including a coating extending along the longitudinal axis and having a coating thickness. The coating may have a middle region and first and second end regions, and a plurality of pores may be dispersed within the coating thickness. The middle region may have a different average porosity than one or both of the end regions. The method may include spraying a first porosity coating in a middle longitudinal region of the bore and spraying a second porosity coating in one or more end regions of the bore. The first porosity may be greater than the second porosity and the first and second porosities may be formed during the spraying steps. The pores may act wells for lubricant.

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Research Organization:: Ford Motor Co., Dearborn, MI (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: EE0006901

Assignee:: Ford Motor Company (Dearborn, MI)

Patent Number(s):: 10,480,448

Application Number:: 15/064,903

OSTI ID:: 1600299

Resource Relation:: Patent File Date: 03/09/2016

Country of Publication:: United States

Language:: English

References (34)

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