| IPC 6 English version | F04F-F04F01102 |
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SECTION F | – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS (portable fire extinguishers with manually-operated pumps A 62 C 11/00, with power-driven pumps A 62 C 25/00; charging or scavenging combustion engines by pumps F 02 B; engine fuel-injection pumps F 02 M; ion pumps H 01 J 41/12; electrodynamic pumps H 02 K 44/02) |
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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 B 65 D 83/14) |
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Notes |
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(1) | Attention is drawn to the Notes preceding class F 01. |
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(2) | Combinations of pumps covered by this subclass with other pumps are only classified in this subclass if such other pumps are intended for preliminary pumping for diffusion pumps. |
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1/ | 00 | Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (using only negative pressure F 04 F 3/00; jet pumps F 04 F 5/00; siphons F 04 F 10/00) |
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1/ | 02 | . | using both positively and negatively pressurised fluid medium, e.g. alternating |
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1/ | 04 | . . | generated by vaporising and condensing |
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1/ | 06 | . | the fluid medium acting on the surface of the liquid to be pumped (F 04 F 1/02 takes precedence) |
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1/ | 08 | . . | specially adapted for raising liquids from great depths, e.g. in wells |
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1/ | 10 | . . | of multiple type, e.g. with two or more units in parallel (F 04 F 1/08 takes precedence) |
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1/ | 12 | . . . | in series |
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1/ | 14 | . . | adapted to pump specific liquids, e.g. corrosive or hot liquids |
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1/ | 16 | . . | characterised by the fluid medium being suddenly pressurised, e.g. by explosion |
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1/ | 18 | . | the fluid medium being mixed with, or generated from, the liquid to be pumped |
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1/ | 20 | . . | specially adapted for raising liquids from great depths, e.g. in wells |
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3/ | 00 | Pumps using negative pressure acting directly on the liquid to be pumped (siphons F 04 F 10/00) |
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5/ | 00 | Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow (diffusion pumps F 04 F 9/00; combination of jet pumps with pumps of other than jet type F 04 B; use of jet pumps for priming or boosting non-positive-displacement pumps F 04 D) |
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5/ | 02 | . | the inducing fluid being liquid |
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5/ | 04 | . . | displacing elastic fluids |
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5/ | 06 | . . . | of rotary type |
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5/ | 08 | . . . | the elastic fluid being entrained in a free-falling column of liquid |
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5/ | 10 | . . | displacing liquids, e.g. containing solids, or liquids and elastic fluids |
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5/ | 12 | . . . | of multi-stage type |
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5/ | 14 | . | the inducing fluid being elastic fluid |
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5/ | 16 | . . | displacing elastic fluids |
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5/ | 18 | . . . | for compressing |
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5/ | 20 | . . . | for evacuating |
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5/ | 22 | . . . . | of multi-stage type |
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5/ | 24 | . . | displacing liquids, e.g. containing solids, or liquids and elastic fluids |
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5/ | 26 | . . . | of multi-stage type (F 04 F 5/28 takes precedence) |
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5/ | 28 | . . . | Restarting of inducing action |
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5/ | 30 | . . . . | with axially-slidable combining nozzle |
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5/ | 32 | . . . . | with hinged flap in combining nozzle |
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5/ | 34 | . . | characterised by means for changing inducing-fluid source |
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5/ | 36 | . . | characterised by using specific inducing fluid |
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5/ | 38 | . . . | the inducing fluid being mercury vapour |
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5/ | 40 | . . . | the inducing fluid being oil vapour |
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5/ | 42 | . | characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B 04 C) |
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5/ | 44 | . | Component parts, details, or accessories not provided for in, or of interest apart from, groups F 04 F 5/02 to F 04 F 5/42 |
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5/ | 46 | . . | Arrangements of nozzles |
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5/ | 48 | . . | Control |
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5/ | 50 | . . . | of compressing pumps |
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5/ | 52 | . . . | of evacuating pumps |
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5/ | 54 | . | Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type |
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7/ | 00 | Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein |
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7/ | 02 | . | Hydraulic rams |
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9/ | 00 | Diffusion pumps |
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9/ | 02 | . | of multi-stage type |
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9/ | 04 | . | in combination with fore pumps, e.g. use of isolating valves |
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9/ | 06 | . | Arrangement of vapour traps |
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9/ | 08 | . | Control |
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10/ | 00 | Siphons |
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10/ | 02 | . | Gravity-actuated siphons |
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11/ | 00 | Other pumps (evacuating by sorption F 04 B) |
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11/ | 02 | . | Pressure exchangers [3] |
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