Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Two marks questions and answers: Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
The four important factors that should be considered while designing any fluid power circuit are:
Construction, Operation
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Fig.8.26 illustrates a circuit that uses a closed-loop electrohydraulic servo control system.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Mechanical-type servo valves are generally employed in the less complex systems.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Hydrostatic transmissions do not make use of the hydrodynamic forces of the fluid flow.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Fig.8.22 illustrates a typical air-over-oil circuit to make best use of advantages of both fluid mediums for counterbalancing application.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
In some applications, the hydraulic and pneumatic circuits are coupled to get best use of the advantages of both oil and air mediums.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Fig.8.21 illustrates a circuit that can be used to control the speed control of a hydraulic motor.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
As we have discussed in Section 6.20, flow control valves are used to control the speed of hydraulic cylinders.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Fail-safe circuits are designed to safeguard the operator, the machine, and the workpiece.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
Synchronizing circuits are used where the motion of two or more cylinders is required to be operated simultaneously, irrespective of load on individual cylinder.
Hydraulic Circuits and Systems - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit III: Hydraulic Circuits and Systems
The sequence valves can also be used to produce continuous reciprocation of a hydraulic cylinder.