1976-02-01

Variable Displacement Pump and Controls-Applied to Variable Speed-Variable Torque Drive Systems 760686

A design analysis is described that leads to optimizing the power efficiency of a hydraulic system. This analysis is concerned with matching a variable displacement hydraulic pump and its control mechanisms to its power source to derive maximum utilization of hydraulic energy in both open and closed loop control systems. The analysis is concerned with variable speed, variable torque drives typically found in material handling and light industrial applications.This design analysis is well suited for those applications where horsepower conservation, increased machine productivity, and desired improvements in a control of hydraulic functions are desirable objectives.

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