IPC 6 English version
 
F01K-F01K02702

SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING


F 01MACHINES OR ENGINES IN GENERAL (combustion engines F 02; machines for liquids F 03, F 04); ENGINE PLANTS IN GENERAL; STEAM ENGINES


F 01 KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES (gas-turbine or jet-propulsion plants F 02; steam generation F 22; nuclear power plants, engine arrangements therein G 21 D)


 Note

 Attention is drawn to the Notes preceding class F 01, especially as regards the definitions of "steam" and "special vapour".



1/

00Steam accumulators (use of accumulators in steam engine plants F 01 K 3/00)

1/

02.for storing steam otherwise than in a liquid

1/

04.for storing steam in a liquid, e.g. Ruth type (in alkali to increase steam pressure F 22 B 1/20)

1/

06..Internal fittings facilitating steam distribution, steam formation, or circulation (acting during charging or discharging F 01 K 1/08; fittings facilitating circulation through multiple accumulators F 01 K 1/14)

1/

08.Charging or discharging of accumulators with steam (peculiar to multiple accumulators F 01 K 1/12)

1/

10.specially adapted for superheated steam

1/

12.Multiple accumulators; Charging, discharging, or regulating peculiar thereto

1/

14..Circulation

1/

16.Other safety or regulating means

1/

18..for steam pressure

1/

20.Other steam-accumulator parts, details, or accessories


Steam engine plants


3/

00Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein (regenerating exhaust steam F 01 K 19/00)

3/

02.Use of accumulators and specific engine types; Regulating thereof

3/

04..the engine being of multiple-inlet-pressure type

3/

06..the engine being of extraction or non-condensing type

3/

08.Use of accumulators, the plant being specially adapted for a specific use

3/

10..for vehicle drive, e.g. for accumulator locomotives

3/

12.having two or more accumulators

3/

14.having both steam accumulator and heater, e.g. superheating accumulator (steam superheaters per se F 22 G)

3/

16..Mutual arrangement of accumulator and heater

3/

18.having heaters (having both steam accumulator and heater F 01 K 3/14; steam heaters per se F 22)

3/

20..with heating by combustion gases of main boiler

3/

22...Controlling, e.g. starting, stopping

3/

24..with heating by separately-fired heaters

3/

26..with heating by steam


5/

00Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type

5/

02.used in regenerative installation


7/

00Plants 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/

00Plants 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/

00Plants 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/

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

13/

02.Regulating, e.g. stopping or starting


15/

00Adaptations 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/

00Use 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


19/

00Regenerating or otherwise treating steam exhaust from steam engine plant (plants characterised by use of means for storing steam in an alkali to increase steam pressure F 01 K 5/00; returning condensate to boiler F 22 D)

19/

02.Regenerating by compression

19/

04..in combination with cooling or heating

19/

06..in engine cylinder

19/

08..compression done by injection apparatus, jet blower, or the like

19/

10.Cooling exhaust steam other than by condenser; Rendering exhaust steam invisible


21/

00Steam engine plants not otherwise provided for

21/

02.with steam generation in engine cylinders

21/

04.using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas (direct-contact steam generators in general F 22 B)

21/

06.Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine



23/

00Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids

23/

02.the engine cycles being thermally coupled

23/

04..condensation heat from one cycle heating the fluid in another cycle

23/

06..combustion heat from one cycle heating the fluid in another cycle

23/

08...with working fluid of one cycle heating the fluid in another cycle

23/

10...with exhaust fluid of one cycle heating the fluid in another cycle

23/

12.the engines being mechanically coupled (F 01 K 23/02 takes precedence)

23/

14..including at least one combustion engine

23/

16..all the engines being turbines (F 01 K 23/14 takes precedence)

23/

18.characterised by adaptation for specific use


25/

00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for

25/

02.the fluid remaining in the liquid phase

25/

04.the fluid being in different phases, e.g. foamed

25/

06.using mixtures of different fluids (plants using mixtures of steam and gas F 01 K 21/04)

25/

08.using special vapours

25/

10..the vapours being cold, e.g. ammonia, carbon dioxide, ether

25/

12..the vapours being metallic, e.g. mercury

25/

14..using industrial or other waste gases


27/

00Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for

27/

02.Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat