WOLFRAM SYSTEM MODELER

Open4Port

Basic building block for directional control valves

Diagram

Wolfram Language

In[1]:=
SystemModel["Hydraulic.Valves.DirectionalControl.Internal.States.Open4Port"]
Out[1]:=

Information

This model is a basic building block for directional control valves. When the input signal is 1, all four ports are connected.

Parameters (6)

medium

Value: Oil()

Type: Medium

Description: Medium in the component

Gleak

Value: 9.999999999999999e-21

Type: PressureDependentLeakage (m³/(s⋅Pa))

Description: Leakage between orifices

overlap

Value: 0

Type: Length (m)

Description: A number between -1 and 1; 0 if no overlap

AMax

Value: 0.0001

Type: Area (m²)

Description: Maximum opening area

Cd

Value: 0.62

Type: Real

Description: Coefficient of discharge for the opening

k

Value: 1

Type: Real

Description: Gain parameter for control signal u

Connectors (5)

port_p

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

port_t

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

port_b

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

port_a

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

u

Type: RealInput

Description: 'input Real' as connector

Components (6)

medium

Type: Medium

Description: Medium in the component

gain

Type: Gain

Description: Output the product of a gain value with the input signal

flow_pa

Type: ControlledOrifice

Description: Controlled restriction

flow_tb

Type: ControlledOrifice

Description: Controlled restriction

flow_pb

Type: ControlledOrifice

Description: Controlled restriction

flow_ta

Type: ControlledOrifice

Description: Controlled restriction

Used in Components (1)

V43OpenCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states