Understanding Soot Mediated Oil Thickening Through Designed Experimentation - Part 5: Knowledge Exhancement in the GM 6.5L

Bardasz, Ewa A.; Carrick, Virginia; George, Herman F.; Graf, Michelle; Kornbrekke, Ralph E.; Pocinki, Sara B.

doi:10.4271/972952

Cited by 20 publications

(3 citation statements)

References 16 publications

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“…Calculation of EHD film thickness is accomplished by commonly used film thickness equations for line contact (1) 1/E = 1/2 ((1-σ 1 2 )/E 1 2 + (1-σ 2 2 )/E 2 2 ) E 1 , E 2 = elastic modulus for bodies 1 and 2 σ 1,2 = pisons ratio for bodies 1 and 2 For line contact the film thickness is: H min = 2.65U 0.7 G 0.54 W -0. 13 The central film thickness for line contact can be derived from the relation (2) H c /H min = 1.15 U -0.007 G 0.02 W 0.03 For point contact the film thickness H min = 3.63U 0.68 G 0.49 W -0.073 (1-e -0.68K ) H c = 2.69U 0.67 G 0.53 W -0.067 (1-e -0.73K )…”

Section: Discussionmentioning

confidence: 99%

“…Kim et al found that increasing the ZnDTP and the dispersant reduced wear [12]. Bardasz et al found that low levels of wear can be maintained if the soot is well dispersed in an oil with adequate ZnDTP [13]. Through understanding of the formulation solutions, wear mechanisms were controlled in these engines, using both the API CG-4 and API CH-4 oils.…”

Section: Use Of Api Cg-4 and Api Ch-4 Oil Formu-lations For Needle Bementioning

confidence: 99%

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Preventing Catastrophic Camshaft Lobe Failures in Low Emission Diesel Engines

Geehan¹,

Ryason²

2000

SAE Technical Paper Series

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Section: Discussionmentioning

confidence: 99%

Section: Use Of Api Cg-4 and Api Ch-4 Oil Formu-lations For Needle Bementioning

confidence: 99%

Preventing Catastrophic Camshaft Lobe Failures in Low Emission Diesel Engines

Geehan¹,

Ryason²

2000

SAE Technical Paper Series

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“…Oil viscosity also increases with the oil soot content (16,(26)(27)(28) which typically accumulates at a rate of 4% of the engine particulate mass emissions (14,29). This results in the oil consumption increasing with the increase in viscosity (30) and also the fuel consumption increasing due to the increase in viscosity.…”

Section: Introductionmentioning

confidence: 99%