Lubrication system calculation with GT-SUITE - Gamma Technologies

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Operating conditionsContentsPROJECT:Lubrication SystemCalculationGeometry ofsystemOverview :Simulation modelMain features ofthe integratedmodelInput DataOperatingConditionsResultsConclusions andfuture workThe calculations have been conducted for the following operatingconditions:‣ “field condition”: oil temperature 90°C, nominal bearing clearances‣ “worst case” conditions 1: oil temperature 120° (pump map fromexperimental test), maximum bearing clearances‣ “worst case” conditions 2: maximum oil temperature 140°C (pump mapcalculated), maximum bearing clearancesBelow, the clearances used in the calculation for “field” and “worst” condition:Clearances Worst case Field conditionMain bearings [mm] 0.074 0.0525Con rod bearings [mm] 0.056 0.043Counterbalance shaft bearings [mm] 0.095 0.0775Tappets clearances [mm] 0.046+0.07*=0.116 0.03+0.07*=0.100Camshaft bearings (intake side) [mm] 0.06 0.045Camshaft bearing (exhaust side) [mm] 0.07 0.05*: increase due to cylinder-head temperature (assumed=100°C)Frankfurt - October 2010, 25th 18
Results: Base systemContentsGraphs below show pressure levels versus engine speedPROJECT:Lubrication SystemCalculationGeometry ofsystemOverview :Simulation modelMain features ofthe integratedmodelPressure decreases due to lessresistance in the oil circuitInput DataOperatingConditionsResultsConclusions andfuture workFrankfurt - October 2010, 25th 19
Page 1 and 2: GT Suite Conference Frankfurt, 25.1
Page 3 and 4: PROJECT: Lubrication System Calcula
Page 5 and 6: Overview - Simulation modelContents
Page 7 and 8: Overview - Simulation base modelCon
Page 9 and 10: Overview - Simulation base modelCon
Page 11 and 12: Input data - Consumers characterist
Page 13 and 14: Input data-Leakage through tappets
Page 15 and 16: Input data - Oil pump mapping (flui
Page 17: Input data - Anti drain valve (flui
Page 22 and 23: Conrod bearings: minimum oil film t
Page 24 and 25: Computational timeContentsPROJECT:L
Page 26: Conclusions and future worksContent

Lubrication system calculation with GT-SUITE - Gamma Technologies

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