checkvalve-states

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checkvalve-states

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Iconic Diagrams\Hydraulics\Valves

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Hydraulics).

Description

CheckValve-States

This model describes a spring-loaded check valve with lumped volumes. The resistance depends on the pressure difference:

 

dp < pclosed => valve closed, only leakage: pa.phi = pb.phi = dp * GLeak

pclosed < dp < popen => working range, i. e. valve partially opened

popen < dp => valve wide open: pa.phi = pb.phi = K * sqrt(dp - pclosed);

CheckValve

Interface

Ports

Description

pa, pb

Both terminals of the hydraulic component.

Causality

 

preferred pressure out pa

preferred pressure out pb

 

Parameters

 

CheckValve\pclosed

CheckValve\popen

CheckValve\GLeak

CheckValve\A

CheckValve\Cd

Va\V

Va\B

Va\p_initial

Vb\V

Vb\B

Vb\p_initial

Valve is closed under this pressure [Pa].

Valve is fully open above this pressure [Pa].

Conductance of closed valve [m3/s.Pa].

Maximum valve area when the valve is open [m2], A >= 0!

Discharge coefficient [].

Volume of oil under pressure [m3]

Effective bulk modulus [Pa]

The starting pressure of the volume [Pa]

Volume of oil under pressure [m3]

Effective bulk modulus [Pa]

The starting pressure of the volume [Pa]