by speed, e.g. by measuring electric frequency or liquid flow

Introduced: September 1968

Last revised: January 2006

Full Title

Controlling > by varying liquid flow > of turbines > Regulating, i.e. acting automatically > by speed, e.g. by measuring electric frequency or liquid flow

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
Subclass:: MACHINES OR ENGINES FOR LIQUIDS

2 direct subcodes

Child Classifications

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F03B 15/1 without retroactive action
F03B 15/12 with retroactive action