The Technology of Laser Honing Applied in Distinctively Improving the Lubrication of Frictional Units

Fu, Yonghong; Ye, Yun Xia; Zhang, Yong Kang; Liu, Cai

doi:10.4028/www.scientific.net/kem.202-203.265

Cited by 13 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly to creating dimples on the cylinder surface, laser honing caused a decrease in oil consumption [ 124 , 125 ].…”

Section: Discussionmentioning

confidence: 99%

“…Laser honing allows for the formation of oil channels of desired dimensions leading to improvement of lubrication. Zhang et al [ 124 , 125 ] found that laser honing caused a decrease in oil consumption to more than half, wear of piston ring and cylinder liner [ 124 ] and exhaust emission [ 125 ] to about half, compared to plateau honing.…”

Section: Functional Performance Of Textured Cylinder Liner Surfacesmentioning

confidence: 99%

See 1 more Smart Citation

Surface Texturing of Cylinder Liners: A Review

2022

View full text Add to dashboard Cite

The effect of cylinder liners on engine performance is substantial. Typically, the cylinder surfaces were plateau honed. However, recently additional dimples or grooves were created on them. This work discusses the tribological impacts of textured cylinder liner surfaces based on a review of the literature. The results of the experimental research obtained using test rigs and fired engines were critically reviewed. In addition, the results of the modeling are shown. Circular oil pockets and grooves perpendicular to the sliding direction of piston rings of small depths were typically used. Surface texturing of the cylinder liners governs lubrication between the cylinder liner and the piston ring by an increase in oil film thickness near the reversal points leading to reductions in friction force and wear and in the fired engine to a decrease in fuel consumption and to an increase in power or torque. The correct texturing pattern ensures a decrease in the oil consumption, blow-by, and emissions of the internal combustion engine compared to plateau-honed surfaces. Considerations of future challenges are also addressed. The volume of lubricant reservoir in surface topography, called oil capacity, should be a substantial parameter characterizing textured surfaces.

show abstract

“…Similarly to creating dimples on the cylinder surface, laser honing caused a decrease in oil consumption [ 124 , 125 ].…”

Section: Discussionmentioning

confidence: 99%

Section: Functional Performance Of Textured Cylinder Liner Surfacesmentioning

confidence: 99%

Surface Texturing of Cylinder Liners: A Review

2022

View full text Add to dashboard Cite

show abstract

Surface Texturing in Machine Elements − A Critical Discussion for Rolling and Sliding Contacts

Rosenkranz¹,

et al. 2019

View full text Add to dashboard Cite

Surface texturing has gained great attention in the tribological community since precisely defined surface features can help to reduce friction and/or wear irrespective of the acting lubrication regime. The ability to positively influence tribological performance under different lubrication conditions makes surface texturing particularly interesting for machine elements since they may experience different conditions over the lifetime or sometimes even over one cycle/stroke. However, despite the great effort by both researchers and industry to introduce surface texturing in machine elements, many questions remain unclear regarding the optimal design of surface textures, as well as the positive and negative effects on the component's performance. The aim of this review article is to critically summarize the state of the art of surface texturing applied to machine elements, with a special emphasis on piston rings, seals, roller bearings, and gears. After a brief introduction, the first section focuses on surface texturing in sliding components (piston rings and seals), whereas the second section deals with surface texturing in rolling components (roller bearings and gears). Based upon the main evidence from the literature, the final section provides more general design guidelines for surface texturing in machine elements.

show abstract