IPC6

SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT...

F01K 2/3

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F01K007/00 - F01K017/06

7 / 00 Plants characterised by the use of specific types of engine (F 01 K 3/02 takes precedence); Plants or engines characterised by their use of special steam systems, cycles, or processes (reciprocating-piston engines using uniflow principle F 01 B 17/04); Regulating means peculiar to such systems, cycles, or processes; Use of withdrawn or exhaust steam for feed-water heating

7 / 02 • the engines being of multiple-expansion type (the engines being only of turbine type F 01 K 7/16; the engines using steam of critical or over-critical pressure F 01 K 7/32; the engines being of extraction or non-condensing type F 01 K 7/34)

7 / 04 • • Regulating means peculiar thereto

7 / 06 • the engines being of multiple-inlet-pressure type (F 01 K 7/02 takes precedence; the engines being only of turbine type F 01 K 7/16; the engines using steam of critical or over-critical pressure F 01 K 7/32; the engines being of extraction or non-condensing type F 01 K 7/34)

7 / 08 • • Regulating means peculiar thereto

7 / 10 • characterised by the engine exhaust pressure (the engines being only of turbine type F 01 K 7/16; the engines using steam of critical or over-critical pressure F 01 K 7/32; the engines being of extraction or non-condensing type F 01 K 7/34)

7 / 12 • • of condensing type

7 / 14 • • • Regulating means peculiar thereto

7 / 16 • the engines being only of turbine type (the engines using steam of critical or over-critical pressure F 01 K 7/32; the engines being of extraction or non-condensing type F 01 K 7/34)

7 / 18 • • the turbine being of multiple-inlet-pressure type

7 / 20 • • • Regulating means peculiar thereto

7 / 22 • • the turbines having inter-stage steam heating

7 / 24 • • • Regulating or safety means peculiar thereto

7 / 26 • • the turbines having inter-stage steam accumulation

7 / 28 • • • Regulating means peculiar thereto

7 / 30 • • the turbines using exhaust steam only

7 / 32 • the engines using steam of critical or over-critical pressure

7 / 34 • the engines being of extraction or non-condensing type; Use of steam for feed-water heating (feed-water heaters in general F 22 D)

7 / 36 • • the engines being of positive-displacement type

7 / 38 • • the engines being of turbine type

7 / 40 • • Use of two or more feed-water heaters in series

7 / 42 • • Use of desuperheaters for feed-water heating

7 / 44 • • Use of steam for feed-water heating and another purpose

9 / 00 Plants characterised by condensers arranged or modified to co-operate with the engines (by condensers structurally combined with engines F 01 K 11/00; steam condensers per se F 28 B)

9 / 02 • Arrangements or modifications of condensate or air pumps

9 / 04 • with dump valves to by-pass stages

11 / 00 Plants characterised by the engines being structurally combined with boilers or condensers

11 / 02 • the engines being turbines

11 / 04 • the boilers or condensers being rotated in use

13 / 00 General layout or general methods of operation, of complete plants

13 / 02 • Regulating, e.g. stopping or starting

15 / 00 Adaptations of plants for special use

15 / 02 • for driving vehicles, e.g. locomotives (arrangements in vehicles, see the relevant vehicle classes)

15 / 04 • • the vehicles being waterborne vessels

17 / 00 Use of steam or condensate extracted or exhausted from steam engine plant (for heating feed-water F 01 K 7/34; returning condensate to boiler F 22 D)

17 / 02 • for heating purposes, e.g. industrial, domestic (F 01 K 17/06 takes precedence; domestic- or space-heating systems, e.g. central-heating systems, in general F 24 D 1/00, F 24 D 3/00, F 24 D 9/00) [3]

17 / 04 • for specific purposes other than heating (F 01 K 17/06 takes precedence)

17 / 06 • Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel of plant

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