In an impulse turbine, the stage is a set of moving blades behind the nozzle. In a reaction turbine, each row of blades is called a 'stage'. A single Curtis stage may consist of two or more rows of moving blades.

Related Terms

OILING SPLASH SYSTEM

Method of lubricating moving parts by agitating or splashing oil in the crankcase.

BEARING

A support or guide by means of which a moving part such as a shaft or axle is positioned with respect to the other parts of a mechanism.

HORIZON SYSTEM OF COORDINATES

A set of celestial coordinates based on the celestial horizon as the primary great circle; usually altitude and azimuth or azimuth angle.

ANTI-FRICTION BEARING

A rolling contact type bearing in which the rotating or moving member is supported or guided by means of ball or roller elements. Does not mean without friction.

AUXILIARY CONTACTS

A set of contacts that perform a secondary function, usually in relation to the operation of a set of primary contacts.

ARMATURE

the rotating part of an electric motor or generator. The moving part of a relay or vibrator.

NONCONTACT BEARING

A bearing in which no solid contact occurs between relatively moving surfaces.

PARTICLE EROSION

Occurs when fluid-entrained particles moving at high velocity pass through orifices or impinge on metering surfaces or sharp angle turns.

SOLENOID VALVE

Electromagnet with a moving core. It serves as a valve or operates a valve.

MAGNETIC BEARING

A type of bearing in which the force that separates the relatively moving surfaces is produced be a magnetic field.

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