(0)F02B:5/5:

(0)F02B:5/5:

IPC6

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

INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL

F02B

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F02B059/00 - F02B077/14

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Internal-combustion aspects of other reciprocating-piston engines with movable, e.g. oscillating, cylinders (with yieldable walls F 02 B 75/38)

Adaptations of engines for special use; Combinations of engines with devices other than engine parts or auxiliaries (of rotary-piston or oscillating-piston engines F 02 B 53/14; aspects predominantly concerning such devices, see the relevant classes for the devices)

Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing (the engine torque being divided by a differential gear for driving a scavenging or charging pump and the engine output shaft F 02 B 39/06; arrangements in vehicles, see the relevant classes for vehicles)

for driving cycles

for driving propellers

Combinations of engines with mechanical gearing (F 02 B 61/02, F 02 B 61/04 take precedence)

Adaptations of engines for driving hand-held tools, electric generators, or pumps; Portable combinations with engine-driven devices

for hand-held tools

for electric generators

Adaptations of engines for other special use; Combinations of engines with other devices, e.g. with non-driven apparatus

Engines with pertinent characteristics other than those provided for in, or of interest apart from, preceding main groups

Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for

of mechanically-driven auxiliary apparatus

driven by means of chains, belts, or like endless members

of non-mechanically driven auxiliary apparatus

of charging or scavenging apparatus [5]

Internal-combustion engines convertible into other combustion-engine type, not provided for in group F 02 B 11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types

for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel

for gaseous and non-gaseous fuels

for different cycles, e.g. convertible from two-stroke to four-stroke

Free-piston engines; Engines without rotary main shaft

Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby (aspects predominantly concerning driven apparatus, see the relevant classes for such apparatus)

Free-piston combustion gas generators

Combinations of two or more engines, not otherwise provided for

Other engines

Engines characterised by their cycles, e.g. six-stroke

Engines with variable distances between pistons at top dead-centre positions and cylinder heads

Engines with means for equalising torque (compensations of inertial forces, suppression of vibration in systems F 16 F)

Engines with means for preventing corrosion in gas-swept spaces

Engines with means for rendering exhaust gases innocuous (apparatus for rendering exhaust gases innocuous per se F 01 N 3/08)

Other methods of operation

Engines characterised by number of cylinders, e.g. single-cylinder engines (F 02 B 75/26 takes precedence)

Multi-cylinder engines (scavenging aspects F 02 B 25/00)

with cylinders all in one line

with cylinders in V-, fan-, or star-arrangement

with cylinders arranged oppositely relative to main shaft and of "flat" type

Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis

Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders (arranged oppositely relative to main shaft F 02 B 75/24)

with one working piston sliding inside another

Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Ultra-small engines, e.g. for driving models

Engines with parts of combustion- or working-chamber walls resiliently yielding under pressure

Reciprocating-piston engines (F 02 B 75/04 takes precedence; with resiliently-urged auxiliary piston in pre-combustion chamber F 02 B 19/06)

Other reciprocating-piston engines

Component parts, details, or accessories, not otherwise provided for

Surface coverings of combustion-gas-swept parts (of pistons or cylinders only F 02 F)

Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines

Safety, indicating, or supervising devices (thermal insulation F 02 B 77/11)

Safety means relating to crankcase explosions

Thermal or acoustic insulation [3]

Acoustic insulation [3]

Engine-driven auxiliary devices combined into units

Running-in of internal-combustion engines (lubrication thereof F 01 M)

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