Tags: Load Sensing

Hydraulic Closed-Center Circuit with Load Sensing

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Hydraulic Closed-Center Circuit with Load Sensing

Load sensing is achieved with a special compensator mounted on a variable displacement pressure-compensated pump. The reader should envision this special compensator mounted on the pump shown in Fig. 4.15. For this analysis, we assume that the special compensator is set to destroke the pump at 200 psi. (The pump develops 200 psi and is …

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Open-Center Hydraulic Circuit

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Open-Center Hydraulic  Circuit

The fixed displacement pump shown in Fig. 4.3 delivers 20 GPM continuously. The relief valve is set on 2500 psi. When the DCV is manually shifted, the pump builds pressure to 1300 psi, and the load begins to move. At this point, the operator notices that the load is moving too fast. Remember, the required …

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Hydraulic Load Sensing Efficiency Improvement

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Load sensing was developed to improve the efficiency of a circuit. It requires a variable displacement pump; thus, it is appropriate to discuss it here. An example will illustrate the advantage provided by load sensing. An application requires a maximum flow of 20 GPM at a maximum pressure of 2500 psi. To meet this requirement, …

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