F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
F04 | KL | POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS (portable fire extinguishers with manually-operated pumps A62C 11/00 , with power-driven pumps A62C 25/00; charging or scavenging combustion engines by pumps F02B; engine fuel-injection pumps F02M; ion pumps H01J 41/12; electrodynamic pumps H02K 44/02) |
F04F | UKL | PUMPING 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 1/00 | HGR | Pumps 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) |
F04F 1/02 | UGR1 | . | using both positively and negatively pressurised fluid medium, e.g. alternating |
|
F04F 1/04 | UGR2 | . . | generated by vaporising and condensing |
|
F04F 1/06 | UGR1 | . | the fluid medium acting on the surface of the liquid to be pumped (F04F 1/02 takes precedence) |
|
F04F 1/08 | UGR2 | . . | specially adapted for raising liquids from great depths, e.g. in wells |
|
F04F 1/10 | UGR2 | . . | of multiple type, e.g. with two or more units in parallel (F04F 1/08 takes precedence) |
|
F04F 1/12 | UGR3 | |
F04F 1/14 | UGR2 | . . | adapted to pump specific liquids, e.g. corrosive or hot liquids |
|
F04F 1/16 | UGR2 | . . | characterised by the fluid medium being suddenly pressurised, e.g. by explosion |
|
F04F 1/18 | UGR1 | . | the fluid medium being mixed with, or generated from, the liquid to be pumped |
|
F04F 1/20 | UGR2 | . . | specially adapted for raising liquids from great depths, e.g. in wells |
|
F04F 3/00 | HGR | Pumps using negative pressure acting directly on the liquid to be pumped (siphons F04F 10/00) |
F04F 5/00 | HGR | Jet 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) |
F04F 5/02 | UGR1 | . | the inducing fluid being liquid |
|
F04F 5/04 | UGR2 | . . | displacing elastic fluids |
|
F04F 5/06 | UGR3 | |
F04F 5/08 | UGR3 | . . . | the elastic fluid being entrained in a free-falling column of liquid |
|
F04F 5/10 | UGR2 | . . | displacing liquids, e.g. containing solids, or liquids and elastic fluids |
|
F04F 5/12 | UGR3 | |
F04F 5/14 | UGR1 | . | the inducing fluid being elastic fluid |
|
F04F 5/16 | UGR2 | . . | displacing elastic fluids |
|
F04F 5/18 | UGR3 | |
F04F 5/20 | UGR3 | |
F04F 5/22 | UGR4 | . . . . | of multi-stage type |
|
F04F 5/24 | UGR2 | . . | displacing liquids, e.g. containing solids, or liquids and elastic fluids |
|
F04F 5/26 | UGR3 | . . . | of multi-stage type (F04F 5/28 takes precedence) |
|
F04F 5/28 | UGR3 | . . . | Restarting of inducing action |
|
F04F 5/30 | UGR4 | . . . . | with axially-slidable combining nozzle |
|
F04F 5/32 | UGR4 | . . . . | with hinged flap in combining nozzle |
|
F04F 5/34 | UGR2 | . . | characterised by means for changing inducing-fluid source |
|
F04F 5/36 | UGR2 | . . | characterised by using specific inducing fluid |
|
F04F 5/38 | UGR3 | . . . | the inducing fluid being mercury vapour |
|
F04F 5/40 | UGR3 | . . . | the inducing fluid being oil vapour |
|
F04F 5/42 | UGR1 | . | characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B04C) |
|
F04F 5/44 | UGR1 | . | Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F 5/02 to F04F 5/42 |
|
F04F 5/46 | UGR2 | . . | Arrangements of nozzles |
|
F04F 5/48 | UGR2 | |
F04F 5/50 | UGR3 | . . . | of compressing pumps |
|
F04F 5/52 | UGR3 | |
F04F 5/54 | UGR1 | . | Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type |
|
F04F 7/00 | HGR | Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein |
F04F 7/02 | UGR1 | |
F04F 9/00 | HGR | Diffusion pumps |
F04F 9/02 | UGR1 | |
F04F 9/04 | UGR1 | . | in combination with fore pumps, e.g. use of isolating valves |
|
F04F 9/06 | UGR1 | . | Arrangement of vapour traps |
|
F04F 9/08 | UGR1 | |
F04F 10/00 | HGR | Siphons |
F04F 10/02 | UGR1 | . | Gravity-actuated siphons |
|
F04F 11/00 | HGR | Other pumps (evacuating by sorption F04B) |
F04F 11/02 | UGR1 | |