using both positively and negatively pressurised fluid medium, e.g. alternating

Introduced: September 1968

Last revised: January 2006

Full Title

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped > using both positively and negatively pressurised fluid medium, e.g. alternating

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
Subclass:: PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS

1 direct subcode

Child Classifications

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F04F 1/04 generated by vaporising and condensing