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Category: Hydraulic Circuit Design

Hydraulic Circuit Design

Mechanical hydraulic servo system

Posted on October 25, 2014

Figure 10.10 shows a mechanical hydraulic servo system with automotive power steering, the sequential operation of which occurs as follows: • The input or command…

Hydraulic Circuit Design

Speed control of a hydraulic motor

Posted on October 24, 2014

Figure 10.9 shows a circuit in which speed control in a hydraulic circuit is accomplished using a pressure-compensated flow control valve. The operation of the…

Hydraulic Circuit Design

Hydraulic Fail-safe circuit

Posted on October 21, 2014

Fail-safe circuits are basically designed to prevent injury to the operator or damage to the equipment. In general they prevent any accidental fall or overloading…

Hydraulic Circuit Design

Hydraulic cylinder sequencing circuit

Posted on October 21, 2014

From our earlier discussions, we have seen how a sequence valve can be used to create sequential operations in a hydraulic circuit. The circuit depicted…

Hydraulic Circuit Design

Counterbalance valve application

Posted on October 21, 2014

Figure 10.5 illustrates the use of a counterbalance or backpressure valve to keep a vertically mounted cylinder in upward position during pump idling. The counterbalance…

Hydraulic Circuit Design

Hydraulic Pump unloading circuit

Posted on October 20, 2014

Figure 10.4 depicts a circuit used for unloading a pump using an unloading valve. In this circuit, the unloading valve opens as the cylinder reaches…

Hydraulic Circuit Design

Control of a double acting hydraulic cylinder circuit

Posted on October 20, 2014

This circuit is designed as shown in Figure 10.2. When the four-way valve is in its spring-centered position, the cylinder is hydraulically locked. Also the…

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