IPC-Stelle: F04F [Version 2017.01]

SymbolTypTitel
FSKMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04KLPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04FUKLPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED (containers or packages with special means for dispensing liquid or semi-liquid contents by internal gaseous pressure B65D 83/14); SIPHONS [2]
F04F 1/00HGRPumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (using only negative pressure F04F 3/00; jet pumps F04F 5/00; siphons F04F 10/00) [1, 2006.01]
F04F 1/02UGR1
.using both positively and negatively pressurised fluid medium, e.g. alternating [1, 2006.01]
F04F 1/04UGR2
. .generated by vaporising and condensing [1, 2006.01]
F04F 1/06UGR1
.the fluid medium acting on the surface of the liquid to be pumped (F04F 1/02 takes precedence) [1, 2006.01]
F04F 1/08UGR2
. .specially adapted for raising liquids from great depths, e.g. in wells [1, 2006.01]
F04F 1/10UGR2
. .of multiple type, e.g. with two or more units in parallel (F04F 1/08 takes precedence) [1, 2006.01]
F04F 1/12UGR3
. . .in series [1, 2006.01]
F04F 1/14UGR2
. .adapted to pump specific liquids, e.g. corrosive or hot liquids [1, 2006.01]
F04F 1/16UGR2
. .characterised by the fluid medium being suddenly pressurised, e.g. by explosion [1, 2006.01]
F04F 1/18UGR1
.the fluid medium being mixed with, or generated from, the liquid to be pumped [1, 2006.01]
F04F 1/20UGR2
. .specially adapted for raising liquids from great depths, e.g. in wells [1, 2006.01]
F04F 3/00HGRPumps using negative pressure acting directly on the liquid to be pumped (siphons F04F 10/00) [1, 2006.01]
F04F 5/00HGRJet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow (diffusion pumps F04F 9/00; combination of jet pumps with pumps of other than jet type F04B; use of jet pumps for priming or boosting non-positive-displacement pumps F04D) [1, 2006.01]
F04F 5/02UGR1
.the inducing fluid being liquid [1, 2006.01]
F04F 5/04UGR2
. .displacing elastic fluids [1, 2006.01]
F04F 5/06UGR3
. . .of rotary type [1, 2006.01]
F04F 5/08UGR3
. . .the elastic fluid being entrained in a free-falling column of liquid [1, 2006.01]
F04F 5/10UGR2
. .displacing liquids, e.g. containing solids, or liquids and elastic fluids [1, 2006.01]
F04F 5/12UGR3
. . .of multi-stage type [1, 2006.01]
F04F 5/14UGR1
.the inducing fluid being elastic fluid [1, 2006.01]
F04F 5/16UGR2
. .displacing elastic fluids [1, 2006.01]
F04F 5/18UGR3
. . .for compressing [1, 2006.01]
F04F 5/20UGR3
. . .for evacuating [1, 2006.01]
F04F 5/22UGR4
. . . .of multi-stage type [1, 2006.01]
F04F 5/24UGR2
. .displacing liquids, e.g. containing solids, or liquids and elastic fluids [1, 2006.01]
F04F 5/26UGR3
. . .of multi-stage type (F04F 5/28 takes precedence) [1, 2006.01]
F04F 5/28UGR3
. . .Restarting of inducing action [1, 2006.01]
F04F 5/30UGR4
. . . .with axially-slidable combining nozzle [1, 2006.01]
F04F 5/32UGR4
. . . .with hinged flap in combining nozzle [1, 2006.01]
F04F 5/34UGR2
. .characterised by means for changing inducing-fluid source [1, 2006.01]
F04F 5/36UGR2
. .characterised by using specific inducing fluid [1, 2006.01]
F04F 5/38UGR3
. . .the inducing fluid being mercury vapour [1, 2006.01]
F04F 5/40UGR3
. . .the inducing fluid being oil vapour [1, 2006.01]
F04F 5/42UGR1
.characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B04C) [1, 2006.01]
F04F 5/44UGR1
.Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F 5/02-F04F 5/42 [1, 2006.01]
F04F 5/46UGR2
. .Arrangements of nozzles [1, 2006.01]
F04F 5/48UGR2
. .Control [1, 2006.01]
F04F 5/50UGR3
. . .of compressing pumps [1, 2006.01]
F04F 5/52UGR3
. . .of evacuating pumps [1, 2006.01]
F04F 5/54UGR1
.Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type [1, 2006.01]
F04F 7/00HGRPumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein [1, 2006.01]
F04F 7/02UGR1
.Hydraulic rams [1, 2006.01]
F04F 9/00HGRDiffusion pumps [1, 2006.01]
F04F 9/02UGR1
.of multi-stage type [1, 2006.01]
F04F 9/04UGR1
.in combination with fore pumps, e.g. use of isolating valves [1, 2006.01]
F04F 9/06UGR1
.Arrangement of vapour traps [1, 2006.01]
F04F 9/08UGR1
.Control [1, 2006.01]
F04F 10/00HGRSiphons [1, 2006.01]
F04F 10/02UGR1
.Gravity-actuated siphons [1, 2006.01]
F04F 13/00HGRPressure exchangers [2009.01]
F04F 99/00HGRSubject matter not provided for in other groups of this subclass [2009.01]