(0)F02D:2/2:

(0)F02D:2/2:

IPC6

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

CONTROLLING COMBUSTION ENGINES

F02D

3/3

>>

F02D027/00 - F02D043/04

27

/

00

Controlling engines characterised by their being reversible

by performing a programme

Programme-control of engines (programme-control specific to a type or purpose covered by one of the groups of this subclass, except groups F 02 D 29/00, F 02 D 39/00, or by one group of another subclass, e.g. of F 01 L, see that group; programme-control in general G 05 B 19/00) [2]

Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto (conjoint control of engines and units of another kind B 60 K 41/00, e.g. B 60 K 41/20) [2]

peculiar to engines driving vehicles; peculiar to engines driving variable-pitch propellers [2]

peculiar to engines driving pumps

peculiar to engines driving electric generators

Other non-electrical control of engines [4]

Use of speed-sensing governors to control combustion engines, not otherwise provided for

Controlling delivery of fuel or combustion-air, not otherwise provided for

of combustion-air

Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for

on interior conditions

Controlling conjointly two or more functions of engines, not otherwise provided for

one of the functions being ignition (ignition control per se F 02 P)

Other non-electrical control [4]

for four-stroke engines

for engines with other cycles than four-stroke, e.g. two-stroke

for engines adding the fuel substantially at end of compression stroke

for engines adding the fuel substantially before compression stroke

for free-piston engines; for engines without rotary main shaft

Electrical control of combustion engines [4]

Notes

(1)

Groups F 02 D 41/00 to F 02 D 45/00 cover electrical aspects of electrically controlled devices. [6]

(2)

Groups F 02 D 41/00 to F 02 D 45/00 do not cover: [6]

-	non-electrical aspects of electrically controlled devices, which are covered by groups F 02 D 1/00 to F 02 D 39/00 or by subclass F 02 M; [6]

-	both electrical and non-electrical aspects of electrically controlled devices, which are covered by groups F 02 D 1/00 to F 02 D 39/00 or by subclass F 02 M. [4,6]

Electrical control of supply of combustible mixture or its constituents (F 02 D 43/00 takes precedence) [4]

Circuit arrangements for generating control signals [4]

Introducing corrections for particular operating conditions (F 02 D 41/14 takes precedence) [4]

for engine starting or warming up [4]

for idling (F 02 D 41/06, F 02 D 41/16 take precedence) [4]

for acceleration [4]

for deceleration [4]

Introducing closed-loop corrections [4]

by measuring intake air flow (measuring flow, in general G 01 F) [4]

Output circuits, e.g. for controlling currents in command coils (current control in inductive loads in general H 03 K 17/64) [4]

Safety or indicating devices for abnormal conditions [4]

characterised by the use of digital means [4]

using computer, e.g. microprocessor [4]

Interface circuits [4]

Controlling fuel injection [4]

of the low pressure type [4]

with means for controlling injection timing or duration (ignition timing F 02 P 5/00) [4]

with means for controlling distribution (arrangement of ignition distributors F 02 P 7/00) [4]

of the high pressure type [4]

with means for controlling injection timing or duration [4]

Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging, exhaust-gas treatment (electrical control of exhaust gas treating apparatus per se F 01 N 9/00 ) [4]

using only analogue means [4]

using only digital means [4]

Electrical control not provided for in groups F 02 D 41/00 to F 02 D 43/00 (electrical control of exhaust gas treating apparatus F 01 N 9/00; electrical control of one of the functions: ignition, lubricating, cooling, starting, intake-heating, see the relevant subclasses for such functions) [4]

>>

3