The application of open-circuit, load-sensing hydraulic systems in industrial, marine, and mobile equipment has long provided many advantages to machine designers, manufacturers, distributors, dealers, and end-user customers. Typically, the flow for such systems is provided by variable-displacement piston or vane pumps. However, in some applications, fixed-displacement gear pumps with integral load-sensing valve packages offer a more economical, and (depending on machine duty cycle and other parameters) a more efficient system. This paper will provide an overview of the design and advantages of these units, discuss the essential criteria which must be considered during the “fixed-displacement versus variable-displacement” pump selection process, and describe some typical applications.
Load-Sensing Gear Pumps
Sae Technical Papers
International Off-Highway & Powerplant Congress & Exposition ; 1998
14.09.1998
Aufsatz (Konferenz)
Englisch
Pistons , Valves , Gears , Hydraulic systems , Pumps
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