F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES AND PUMPS
 F02
COMBUSTION ENGINES (cyclically operating valves therefor, lubricating, exhausting, or silencing engines F01); HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
 F02D
CONTROLLING COMBUSTION ENGINES (cyclically operating valves for combustion engines F01L; controlling combustion engine lubrication F01M; cooling internal-combustion engines F01P; supplying combustion engines with combustible mixtures or constituents thereof, e.g. carburettors, injection pumps, F02M; starting of combustion engines F02N; controlling of ignition F02P; controlling gas-turbine plants, jet-propulsion plants, or combustion-product engine plants, see the relevant sub-classes for these plants)
 F02D

Note(s)

  1. Attention is drawn to the notes preceding class F01.
  2. In this sub-class, the following words are used with the meanings indicated:
    1. "Fuel injection" means the introduction of a combustible substance into a space, e.g. cylinder, by means of a pressure source, e.g. a pump, continuously or cyclically acting behind the substance.
    2. "Supercharging" means supplying to the working space, e.g. cylinder, combustion-air pressurised by means of a pressure source, e.g. a pump.
 F02D 1/00 - 
F02D 7/00
Controlling, e.g. regulating, fuel injection (peculiar to engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures F02D 19/00; peculiar to supercharged engines F02D 23/00; automatic controllers for prime movers, in general G05D)
 F02D 1/00
Controlling fuel-injection pumps, e.g. of high-pressure injection type (F02D 3/00 takes precedence; controlling fuel injection electrically F02D 5/00)  [2]
 F02D 1/02
·  not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
 F02D 1/04
·  ·  by mechanical means dependent on engine speed, e.g. using centrifugal governors (F02D 1/08 takes precedence)
 F02D 1/06
·  ·  by means dependent on pressure of engine working fluid (F02D 1/08 takes precedence)
 F02D 1/08
·  ·  Transmission of control impulse to pump control, e.g. with power drive or power assistance
 F02D 1/10
·  ·  ·  mechanical
 F02D 1/12
·  ·  ·  non-mechanical, e.g. hydraulic
 F02D 1/14
·  ·  ·  ·  pneumatic
 F02D 1/16
·  Adjustment of injection timing (F02D 1/02 takes precedence)
 F02D 1/18
·  ·  with non-mechanical means for transmitting control impulse; with amplification of control impulse
 F02D 3/00
Controlling low-pressure fuel injection, i.e. where the air-fuel mixture containing fuel thus injected will be substantially compressed by the compression stroke of the engine, by means other than controlling only an injection pump (controlling fuel injection electrically F02D 5/00; carburettors F02M)  [2]
 F02D 3/02
·  with continuous injection or continuous flow upstream of the injection nozzle  [2]
 F02D 3/04
·  Controlling fuel injection and carburation, e.g. of alternative systems
 F02D 5/00
Controlling fuel injection electrically
 F02D 5/02
·  with intermittent injection
 F02D 7/00
Other fuel-injection control
 F02D 7/02
·  Controlling fuel injection where fuel is injected by compressed air
 F02D 9/00
Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
 F02D 9/02
·  concerning induction conduits (throttle valves, or arrangements thereof in conduits F02D 9/08)
 F02D 9/04
·  concerning exhaust conduits (throttle valves, or arrangements thereof in conduits F02D 9/08)
 F02D 9/06
·  ·  Exhaust brakes
 F02D 9/08
·  Throttle valves specially adapted therefor; Arrangements of such valves in conduits (throttle valves modified for use in, or arranged in, carburettors F02M; throttle valves in general F16K)
 F02D 9/10
·  ·  having pivotally-mounted flaps
 F02D 9/12
·  ·  having slidably-mounted valve-members; having valve-members movable longitudinally of conduit
 F02D 9/14
·  ·  ·  the members being slidable transversely of conduit
 F02D 9/16
·  ·  ·  the members being rotatable
 F02D 9/18
·  ·  having elastic-wall valve-members
 F02D 11/00
Arrangements for, or adaptations to, manual initiation of controls (specially for reversing F02D 27/00; conjoint control of engines and units of another kind, e.g. clutches, gearings, brakes, B60K 41/00, e.g. B60K 41/20)  [2]
 F02D 11/02
·  of hand, foot, or like personal initial controls
 F02D 11/04
·  of mechanical control linkages (with power drive or assistance F02D 11/06)
 F02D 11/06
·  of non-mechanical, e.g. fluid, control linkages; of control linkages with power drive or assistance
 F02D 11/08
·  ·  pneumatic
 F02D 11/10
·  ·  electric
 F02D 13/00
Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing (modifying valve gear F01L)
 F02D 13/02
·  during engine operation
 F02D 13/04
·  ·  Using engine as brake
 F02D 13/06
·  ·  Cutting-out cylinders
 F02D 13/08
·  for rendering engine inoperative or idling
 F02D 15/00
Varying compression ratio (modifying valve-gear F01L)
 F02D 15/02
·  by alteration or displacement of piston stroke
 F02D 15/04
·  by alteration of volume of compression space without changing piston stroke
 F02D 17/00
Controlling engines by cutting-out individual cylinders; Rendering engines inoperative or idling (controlling or rendering inoperative by varying inlet or exhaust valve operating characteristics F02D 13/00)
 F02D 17/02
·  Cutting-out (cutting-out engines in multiple-engine arrangements F02D 25/04)
 F02D 17/04
·  rendering engines inoperative or idling, e.g. caused by abnormal conditions (dependent on lubricating conditions F01M 1/22; dependent on cooling F01P 5/14)
 F02D 19/00 - 
F02D 29/00
Controlling peculiar to specified types or adaptations of engines
 F02D 19/00
Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures (the non-fuel substances being gaseous F02D 21/00)
 F02D 19/02
·  peculiar to engines working with gaseous fuels (apparatus, or control parts thereof, for mixing gas and air F02M)
 F02D 19/04
·  peculiar to engines working with solid fuels, e.g. pulverised coal
 F02D 19/06
·  peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
 F02D 19/08
·  ·  simultaneously using pluralities of fuels (F02D 19/12 takes precedence)
 F02D 19/10
·  ·  ·  peculiar to compression-ignition engines in which the main fuel is gaseous
 F02D 19/12
·  peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel (apparatus, or control parts thereof, for delivering such substances or agents F02M)
 F02D 21/00
Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
 F02D 21/02
·  peculiar to oxygen-fed engines
 F02D 21/04
·  ·  with circulation of exhaust gases in closed or semi-closed circuits
 F02D 21/06
·  peculiar to engines having other non-fuel gas added to combustion-air
 F02D 21/08
·  ·  the other gas being the exhaust gas of engine (circulation of exhaust gas in oxygen-fed engines F02D 21/04)
 F02D 21/10
·  ·  having secondary air added to fuel-air mixture (apparatus, or control parts thereof, for delivering secondary air F02M)
 F02D 23/00
Controlling engines characterised by their being supercharged
 F02D 23/02
·  the engines being of fuel-injection type
 F02D 25/00
Controlling two or more co-operating engines
 F02D 25/02
·  to synchronise speed
 F02D 25/04
·  by cutting-out engines
 F02D 27/00
Controlling engines characterised by their being reversible
 F02D 27/02
·  by performing a programme
 F02D 28/00
Programme-control of engines (programme-control specific to a type or purpose covered by one of the groups of this sub-class except groups F02D 29/00, F02D 39/00, or by one group of another sub-class, e.g. F01L, see that group; programme-control in general G05B 19/00)  [2]
 F02D 29/00
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 B60K 41/00, e.g. B60K 41/20)  [2]
 F02D 29/02
·  peculiar to engines driving vehicles; peculiar to engines driving variable-pitch propellers  [2]
 F02D 29/04
·  peculiar to engines driving pumps
 F02D 29/06
·  peculiar to engines driving electric generators
 F02D 31/00 - 
F02D 39/00
Other controlling of engines
 F02D 31/00
Using speed-sensing governors to control combustion engines, not otherwise provided for
 F02D 33/00
Controlling delivery of fuel or combustion-air, not otherwise provided for
 F02D 33/02
·  of combustion-air
 F02D 35/00
Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
 F02D 35/02
·  on interior conditions
 F02D 37/00
Controlling conjointly two or more functions of engines, not otherwise provided for
 F02D 37/02
·  one of the functions being ignition (ignition control per se F02P)
 F02D 39/00
Other controlling
 F02D 39/02
·  for four-stroke engines
 F02D 39/04
·  for engines with other cycles than four-stroke, e.g. two-stroke
 F02D 39/06
·  for engines adding the fuel substantially at end of compression stroke
 F02D 39/08
·  for engines adding the fuel substantially before compression stroke
 F02D 39/10
·  for free-piston engines; for engines without rotary main shaft