| F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F02 | KL | COMBUSTION ENGINES (cyclically operating valves therefor, lubricating, exhausting, or silencing engines F01); HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS |
| F02F | UKL | CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES (specially adapted for rotary-piston or oscillating-piston internal-combustion engines F02B; specially adapted for gas-turbine plants F02C; specially adapted for jet-propulsion plants F02K) [2] |
| F02F 1/00 | HGR | Cylinders; Cylinder heads (in general F16J) |
| F02F 1/02 | UGR1 | | . | having cooling means (cylinder heads F02F 1/26) |
|
| F02F 1/04 | UGR2 | |
| F02F 1/06 | UGR3 | | . . . | Shape or arrangement of cooling fins; Finned cylinders |
|
| F02F 1/08 | UGR4 | | . . . . | running-liner and cooling-part of cylinder being different parts or of different material |
|
| F02F 1/10 | UGR2 | |
| F02F 1/12 | UGR3 | | . . . | Preventing corrosion of liquid-swept surfaces |
|
| F02F 1/14 | UGR3 | | . . . | Cylinders with means for directing, guiding, or distributing liquid stream |
|
| F02F 1/16 | UGR3 | | . . . | Cylinder liners of wet type |
|
| F02F 1/18 | UGR1 | |
| F02F 1/20 | UGR2 | | . . | characterised by constructional features providing for lubrication |
|
| F02F 1/22 | UGR2 | | . . | characterised by having ports in cylinder wall for scavenging or charging |
|
| F02F 1/24 | UGR1 | |
| F02F 1/26 | UGR2 | |
| F02F 1/28 | UGR3 | |
| F02F 1/30 | UGR4 | | . . . . | Finned cylinder heads |
|
| F02F 1/32 | UGR5 | | . . . . . | the cylinder heads being of overhead-valve type |
|
| F02F 1/34 | UGR5 | | . . . . . | with means for directing or distributing cooling medium (F02F 1/32 takes precedence) |
|
| F02F 1/36 | UGR3 | |
| F02F 1/38 | UGR4 | | . . . . | the cylinder heads being of overhead-valve type |
|
| F02F 1/40 | UGR4 | | . . . . | cylinder heads with means for directing, guiding, or distributing liquid stream (F02F 1/38 takes precedence) |
|
| F02F 1/42 | UGR2 | | . . | Shape or arrangement of intake or exhaust channels in cylinder heads |
|
| F02F 3/00 | HGR | Pistons (in general F16J) |
| F02F 3/02 | UGR1 | | . | having means for accommodating or controlling heat expansion |
|
| F02F 3/04 | UGR2 | | . . | having expansion-controlling inserts |
|
| F02F 3/06 | UGR3 | | . . . | the inserts having bimetallic effect |
|
| F02F 3/08 | UGR3 | | . . . | the inserts being ring-shaped |
|
| F02F 3/10 | UGR1 | | . | having surface coverings (F02F 3/02 takes precedence) |
|
| F02F 3/12 | UGR2 | |
| F02F 3/14 | UGR3 | | . . . | within combustion chambers |
|
| F02F 3/16 | UGR1 | |
| F02F 3/18 | UGR2 | | . . | the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston |
|
| F02F 3/20 | UGR2 | | . . | the means being a fluid flowing through or along piston |
|
| F02F 3/22 | UGR3 | | . . . | the fluid being liquid |
|
| F02F 3/24 | UGR1 | | . | having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines |
|
| F02F 3/26 | UGR1 | | . | having combustion chamber in piston head (the surface thereof being covered F02F 3/14) |
|
| F02F 3/28 | UGR1 | | . | Other pistons with specially-shaped head |
|
| F02F 5/00 | HGR | Piston rings, e.g. associated with piston crown |
| F02F 7/00 | HGR | Casings, e.g. crankcases (engine casings in general F16M) |
| F02F 11/00 | HGR | Arrangements of sealings in combustion engines (piston rings F02F 5/00; sealings per se F16J) |