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TSM 363 Fluid Power Systems. Control Valves - Key components for power distribution control . v o , F o. P 1 Q 1. P 4 Q 4. n i , T i. M. n o , T o. Energy Level. Power Distribution in Hydraulic Systems. CONTROL VALVES. Poppet Valves. Spool Valves. Basic Valve Configurations.
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TSM 363 Fluid Power Systems Control Valves - Key components for power distribution control
vo, Fo • P1 Q1 • P4 Q4 • ni, Ti • M • no, To • EnergyLevel Power Distribution in Hydraulic Systems
CONTROL VALVES Poppet Valves Spool Valves Basic Valve Configurations
Flow Passability - Orifice Equation • Cd is determined experimentally • Pressure drop is proportional to flow • Valve Principles: Area is a adjusted to control pressure and flow rate • Density of petroleum-based fluids 850-950 kg/m3
DirectionControl PressureControl FlowControl Functions of Hydraulic Control Valve CONTROL VALVES
Pressure Checking Valves pressure check valve
Pressure Checking Valves pressure shuttle valve
Pressure Regulating Valves constant-pressure-reducing
Pressure Regulating Valves fixed-pressure-reducing
Pressure Regulating Valves pilot operated pressure-reducing
Pressure Regulating Valves direct-acting sequencing valve
Pressure Regulating Valves pressure counterbalancing
Lecture Summary • Discussed the basic principles of different types of hydraulic control valves: • Basic valve configuration • Control of different system parameters