Shuttle Valve
Shuttle valve with pressure bias
Description
Connections
Parameters
The Shuttle Valve component allows flow out of port C from the either port A or port B, depending which has the higher pressure.
Based on the orifice area, the pressure vs. flow rate relationship is calculated by the formulation used in the Orifice component.
The boolean parameters Use volume A, Use volume B, and Use volume C, when true, add optional volumes VA, VB, and VC to ports A, B, and C, respectively.
Name
Modelica ID
portA
Hydraulic port of left inlet
portB
Hydraulic port of right inlet
portC
Hydraulic port of bottom outlet
General Parameters
Default
Units
popen
1·104
Pa
Pressure difference to make one side fully open
Aclose
1·10−12
m2
Orifice area when closed (leakage)
Aopen
1·10−5
Orifice area when fully open
Exact
false
When true (checked) a first-order dynamics is used for the valve areas
tc
110
s
Time constant
Cd
710
Flow-discharge coefficient
ℜCr
12
Reynolds number at critical flow
ReCr
Volumes Parameters
Use volume A
When true a hydraulic volume chamber is added to portA
useVolumeA
Va
1·10−6
m3
Volume of chamber A
Use volume B
When true a hydraulic volume chamber is added to portB
useVolumeB
Vb
Volume of chamber B
Use volume C
When true a hydraulic volume chamber is added to portC
useVolumeC
Vc
Volume of chamber C
See Also
Hydraulics Library
Valves
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