IPC Classification

Class code (prefix) Descriptions Number of results
F02F 1/00 Cylinders; Cylinder heads
F02F 1/02 Cylinders; Cylinder heads having cooling means
F02F 1/04 Cylinders; Cylinder heads having cooling means for air cooling
F02F 1/06 Shape or arrangement of cooling fins; Finned cylinders
F02F 1/08 Shape or arrangement of cooling fins; Finned cylinders running-liner and cooling-part of cylinder being different parts or of different material
F02F 1/10 Cylinders; Cylinder heads having cooling means for liquid cooling
F02F 1/12 Preventing corrosion of liquid-swept surfaces
F02F 1/14 Cylinders with means for directing, guiding, or distributing liquid stream
F02F 1/16 Cylinder liners of wet type
F02F 1/18 Other cylinders
F02F 1/20 Other cylinders characterised by constructional features providing for lubrication
F02F 1/22 Other cylinders characterised by having ports in cylinder wall for scavenging or charging
F02F 1/24 Cylinder heads
F02F 1/26 Cylinder heads having cooling means
F02F 1/28 Cylinder heads having cooling means for air cooling
F02F 1/30 Finned cylinder heads
F02F 1/32 Finned cylinder heads the cylinder heads being of overhead-valve type
F02F 1/34 Finned cylinder heads with means for directing or distributing cooling medium
F02F 1/36 Cylinder heads having cooling means for liquid cooling
F02F 1/38 Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead-valve type
F02F 1/40 Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
F02F 1/42 Shape or arrangement of intake or exhaust channels in cylinder heads
F02F 3/00 Pistons
F02F 3/02 Pistons having means for accommodating or controlling heat expansion
F02F 3/04 Pistons having means for accommodating or controlling heat expansion having expansion-controlling inserts
F02F 3/06 Pistons having means for accommodating or controlling heat expansion having expansion-controlling inserts the inserts having bimetallic effect
F02F 3/08 Pistons having means for accommodating or controlling heat expansion having expansion-controlling inserts the inserts being ring-shaped
F02F 3/10 Pistons having surface coverings
F02F 3/12 Pistons having surface coverings on piston heads
F02F 3/14 Pistons having surface coverings on piston heads within combustion chambers
F02F 3/16 Pistons having cooling means
F02F 3/18 Pistons having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
F02F 3/20 Pistons having cooling means the means being a fluid flowing through or along piston
F02F 3/22 Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
F02F 3/24 Pistons having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
F02F 3/26 Pistons having combustion chamber in piston head
F02F 3/28 Other pistons with specially-shaped head
F02F 5/00 Piston rings, e.g. associated with piston crown
F02F 7/00 Casings, e.g. crankcases
F02F 11/00 Arrangements of sealings in combustion engines