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US 4,274,278 AGranted
Transmission testing machine and method
AssigneeDayco Corporation
InventorGene L. Patterson
Life of this patent
Estimating the term…
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AssigneeDayco Corporation
InventorGene L. Patterson
Estimating the term…
A machine and method for testing a power transmission device are provided wherein the machine comprises a drive for driving the power transmission device and means for loading the power transmission device wherein the loading means comprises a power recovery system comprising a coupling having an input shaft and an output shaft with the shafts being free of mechanical connections therebetween, apparatus operatively connecting the power transmission device to the input shaft, and apparatus operatively connecting the output shaft to the drive, with the coupling having integral means operating to drive the output shaft at a speed which approaches but is less than the speed of the input shaft to thereby provide supplementary power for the drive in driving the power transmission device and with the system providing testing for any desired loading of the power transmission device with only the power necessary to overcome power losses in the machine thereby resulting in a substantial power recovery.
In a machine for testing a power transmission device comprising a drive for driving said power transmission device and means for loading said power transmission device, the improvement wherein said loading means comprises a power recovery system comprising, a coupling having an input shaft and an output shaft, said shafts being free of mechanical connections therebetween, first means operatively connecting said power transmission device to said input shaft, and second means operatively connecting said output shaft to said drive, said coupling having integral means operating to drive said output shaft at a speed which approaches but is less than the speed of said input shaft to thereby provide supplementary power for said drive in driving said power transmission device, said system providing testing for any desired loading of said power transmission device with only the power necessary to overcome losses in said machine thereby resulting in a substantial power recovery.
In a method of testing a power transmission device comprising the steps of driving said power transmission device with a drive and loading said power transmission device with loading means during said driving step, the improvement wherein said loading step comprises connecting a power recovery system to said power transmission device during testing, said connecting step comprising, providing a coupling having an input shaft and an output shaft, said shafts being free of mechanical connections therebetween, operatively connecting first means between said power transmission device and said input shaft, and operatively connecting second means between said output shaft and said drive, said coupling having integral means operating to drive said output shaft at a speed which approaches but is less than the speed of said input shaft to thereby provide supplementary power for said drive in driving said power transmission device, said system providing testing for any desired loading of said power transmission device with only the power necessary to overcome power losses in said machine thereby resulting in a substantial power recovery.
Dependencies are inferred from the claim text.