(0)F02B:1/5:
IPC6
SECTION F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS;BLASTING
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
F02B
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<<   >>   F02B009/00 - F02B025/00  

9
/ 00 Engines characterised by other types of ignition

9
/ 02 • with compression ignition (F 02 B 1/12, F 02 B 3/06 take precedence)  

9
/ 04 • • Methods of operating  

9
/ 06 • with non-timed positive ignition, e.g. with hot-spots  

9
/ 08 • • with incandescent chambers  

9
/ 10 • • • Chamber shapes or constructions  
 

 11
/ 00 Engines with both fuel-air mixture compression and air compression, or with both positive ignition and compression ignition, e.g. in different cylinders

11
/ 02 • convertible from fuel-air mixture compression to air compression or vice versa  

Engines characterised by the method of introducing fuel into cylinders (characterised by use of gaseous or solid fuels F 02 B 43/00, F 02 B 45/00; carburettors, fuel-injection apparatus F 02 M)
 

 13
/ 00 Engines with introduction of fuel into cylinders by use of auxiliary fluid

13
/ 02 • Compression ignition engines using air or gas for blowing fuel into compressed air in cylinder  

13
/ 04 • • Arrangements or adaptations of pumps  

13
/ 06 • Engines having secondary air mixed with fuel in pump, compressed therein without ignition, and fuel-air mixture being injected into air in cylinder  

13
/ 08 • • Arrangements or adaptations of pumps  

13
/ 10 • Use of specific auxiliary fluids, e.g. steam, combustion gas  
 

 15
/ 00 Engines characterised by method of introducing fuel into cylinders and not otherwise provided for

15
/ 02 • having means for sucking fuel directly into cylinder  
 

 17
/ 00 Engines characterised by means for effecting stratification of charge in cylinders

Engines characterised by having precombustion chambers or air-storage chambers, or characterised by shape or construction of combustion chambers to improve operation (engines with incandescent chambers F 02 B 9/08)
 

 19
/ 00 Engines with precombustion chambers

19
/ 02 • the chamber being periodically isolated from its cylinder  

19
/ 04 • • the isolation being effected by a protuberance on piston or cylinder head  

19
/ 06 • with auxiliary piston in chamber for transferring ignited charge to cylinder space  

19
/ 08 • the chamber being of air-swirl type  

19
/ 10 • with fuel introduced partly into pre-combustion chamber, and partly into cylinder (F 02 B 19/02 to F 02 B 19/08 take precedence)  

19
/ 12 • with positive ignition (F 02 B 19/02 to F 02 B 19/10 take precedence)  

19
/ 14 • with compression ignition (F 02 B 19/02 to F 02 B 19/10 take precedence)  

19
/ 16 • Chamber shapes or constructions not specific to groups F 02 B 19/02 to F 02 B 19/10  

19
/ 18 • • Transfer passages between chamber and cylinder  
 

 21
/ 00 Engines having air-storage chambers

21
/ 02 • Chamber shapes or constructions  
 

 23
/ 00 Other engines having special shape or construction of combustion chambers to improve operation

23
/ 02 • with compression ignition  

23
/ 04 • • the combustion space being subdivided into two or more chambers (with pre-combustion chambers F 02 B 19/00)  

23
/ 06 • • the combustion space being arranged in working piston (F 02 B 23/04 takes precedence)  

23
/ 08 • with positive ignition  

23
/ 10 • • with separate admission of air and fuel into cylinder  

Engines characterised by provisions for charging or scavenging (aspects concerned with driven charging or scavenging pumps F 02 B 33/00 to F 02 B 39/00)
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