IfcCompressorTypeEnum

Definition from IAI: Types of compressors. The IfcCompressorTypeEnum contains the following:

- DYNAMIC: The pressure of refrigerant vapor is increased by a continuous transfer of angular momentum from a rotating member to the vapor followed by conversion of this momentum into static pressure.
- RECIPROCATING: Positive-displacement compressor using a piston driven by a connecting rod from a crankshaft.
- ROTARY: Positive-displacement compressor using a roller or rotor device.
- SCROLL: Positive-displacement compressor using two inter-fitting, spiral-shaped scroll members.
- TROCHOIDAL: Positive-displacement compressor using a rolling motion of one circle outside or inside the circumference of a basic circle and produce either epitrochoids or hypotrochoids.
- SINGLESTAGE: Positive-displacement reciprocating compressor where vapor is compressed in a single stage.
- BOOSTER: Positive-displacement reciprocating compressor where pressure is increased by a booster.
- OPENTYPE: Positive-displacement reciprocating compressor where the shaft extends through a seal in the crankcase for an external drive.
- HERMETIC: Positive-displacement reciprocating compressor where the motor and compressor are contained within the same housing, with the motor shaft integral with the compressor crankshaft and the motor in contact with refrigerant.
- SEMIHERMETIC: Positive-displacement reciprocating compressor where the hermetic compressors use bolted construction amenable to field repair.
- WELDEDSHELLHERMETIC: Positive-displacement reciprocating compressor where the motor compressor is mounted inside a steel shell, which, in turn is sealed by welding.
- ROLLINGPISTON: Positive-displacement rotary compressor using a roller mounted on the eccentric of a shaft with a single vane in the nonrotating cylindrical housing.
- ROTARYVANE: Positive-displacement rotary compressor using a roller mounted on the eccentric of a shaft with multiple vanes in the nontotating cylindrical housing.
- SINGLESCREW: Positive-displacement rotary compressor using a single cylindrical main rotor that works with a pair of gate rotors.
- TWINSCREW: Positive-displacement rotary compressor using two mating helically grooved rotors, male (lobes) and female (flutes) in a stationary housing with inlet and outlet gas ports.
- USERDEFINED: User-defined compressor type.
- NOTDEFINED: Undefined compressor type.

> HISTORY: New enumeration in IFC R2x.

EXPRESS specification:

TYPE IfcCompressorTypeEnum = ENUMERATION OF
( | DYNAMIC, RECIPROCATING, ROTARY, SCROLL, TROCHOIDAL, SINGLESTAGE, BOOSTER, OPENTYPE, HERMETIC, SEMIHERMETIC, WELDEDSHELLHERMETIC, ROLLINGPISTON, ROTARYVANE, SINGLESCREW, TWINSCREW, USERDEFINED, NOTDEFINED);
END_TYPE;