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US 4,381,684 AGranted
Energy efficient drive system
AssigneeS. Himmelstein and Company
InventorSydney Himmelstein
Life of this patent
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AssigneeS. Himmelstein and Company
InventorSydney Himmelstein
Estimating the term…
An energy efficient drive system having apparatus for determining the load power, load speed, and necessary adjustment of the drive system to obtain a minimum brake specific energy consumption. The drive system includes structure for adjusting the drive in accordance with the determined adjustment. In one form, the drive system includes a variable speed transmission and the adjustment of the drive system is effected by adjusting the transmission in accordance with a determination of the necessary adjusted speed ratio for causing the motive device speed to be a minimum. In one form, the motive device is an internal combustion engine. The adjustment of the drive system to obtain maximum efficiency may alternatively be effected by adjusting the number of active cylinders of the engine. The determination may be made by reference to input information concerning the characteristics of the motive drive. In a modified form, the adjustment is effected by a constant monitoring of the brake specific energy consumption and a resultant adjustment of the drive system to constantly seek the lowest brake specific energy consumption.
In a drive system having a prime mover and a variable transmission, said drive system being responsive to variable load demand to provide a demanded load power with maximum input energy usage efficiency of the prime mover in producing said demanded load power, the improvement comprising:
In a drive system having a drive responsive to variable load demand to provide a demanded load power with maximum input energy usage efficiency in producing said demanded load power, the improvement comprising:
Dependencies are inferred from the claim text.