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7.34 CompressorDesignType ObjectType Definition ToC Previous Next

The CompressorDesignType extends its supertype by compressor specific Variables and is formally defined in Table 72.

Table 72 – CompressorDesignType Definition

Attribute Value        
BrowseName CompressorDesignType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the DesignType defined in 7.33, i.e. inheriting the InstanceDeclarations of that Node          
0:HasComponent Variable DisplacementType DisplacementTypeEnum 0:DataItemType O, RO
0:HasComponent Variable LubricationType LubricationTypeEnum 0:DataItemType O, RO
0:HasComponent Variable NumberOfStages 0:UInt16 0:DataItemType O, RO
0:HasComponent Variable VariableFlow 0:Boolean 0:TwoStateDiscreteType O, RO
The following nodes override properties and components of the DesignType          
0:HasComponent Variable ComponentClass CompressorTypeEnum 0:DataItemType O, RO

The InstanceDeclarations of the CompressorDesignType have additional Attributes defined in Table 73.

Table 73 – CompressorDesignType Attribute values for child Nodes

Source Path Value Attribute Description Attribute
ComponentClass   Enumeration of possible compressor types.
DisplacementType   Enumeration of possible displacement types.
LubricationType   Enumeration of possible lubrication types for the compression process of a compressor.
NumberOfStages   Number of stages the compressor has available.
VariableFlow   Indicates if a compressor has a variable or fixed flow.

‘Fixed flow’ means the product offers no control for changing the volume flow independent of pressure.  

‘Variable flow’ means the compressor package allows an intentional change in volume flow rate, most obviously by VSD but also by adjustable guide vanes in turbo compressors or by valve controls in piston compressors or other means.  

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