Control components in a hydraulic system:Hydraulic fuses.

Hydraulic fuses

A hydraulic fuse is analogous to an electric fuse and its application in a hydraulic system is much the same as that of an electric fuse in an electrical circuit. A simple illustration of a hydraulic fuse is shown in Figure 6.43.

A hydraulic fuse when incorporated in a hydraulic system, prevents the hydraulic pressure from exceeding the allowable value in order to protect the circuit components from damage. When the hydraulic pressure exceeds the design value, the thin metal disk ruptures, to relieve the pressure and the fluid is drained back to the tank. After rupture, a new metal disk needs to be inserted before the start of the operation.

Hydraulic fuses are used mainly in pressure-compensated pumps with fail-safe overload protection, in case the compensator control on the pump fails to operate. A hydraulic fuse is analogous to an electric fuse because they both are ‘one-shot’ devices. On the other hand, the pressure relief valve is analogous to an electrical circuit breaker because they both are resetable devices.

Control components in a hydraulic system-0166

Related posts:

Motors:Alternative electrical designs of motors
System and process requirements:Supply and demand controlled systems
Air movers: Types of air mover and Aerodynamic compressors.
Health and safety:Explosion protection
Conveying characteristics:Conveying characteristics and Conveying mode.
CONTROL VALVES:VALVE CLASSIFICATIONS
HYDRAULIC PUMPS:Radial Piston Pumps
Applications of hydraulic systems:Advantages of hydraulic systems
Sequence valves.
Pressure regulation:Relief valves,Non-relieving pressure regulators and Relieving pressure regulat...
Compressor types:Piston compressors,Screw compressors,Rotary compressors and Dynamic compressors.
BASICCONCEPTS OF THE RMODYNAMICS:ENERGY AND ENVIRONMENT
POWER AND REFRIGER A TION CYCLES:AN OVERVIEW OF RECIPROCATING ENGINES
SUMMARY OF HEAT EXCHANGERS
INTRODUCTION TO FLUID MECHANICS:VISCOSITY

Leave a comment

Your email address will not be published. Required fields are marked *