F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES OR PUMPS
 F02
COMBUSTION ENGINES (cyclically operating valves therefor, lubricating, exhausting, or silencing engines F01); HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
 F02P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES (specially adapted for rotary-piston or oscillating-piston engines F02B 53/12; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general, see section H; sparking plugs H01T)
 F02P 1/00 - 
F02P 3/00
Electric spark ignition installations characterised by the type of ignition power generation or storage
 F02P 1/00
Installations having electric ignition energy generated by magneto- or dynamo-electric generators without subsequent storage
 F02P 1/02
·  the generator rotor being characterised by forming part of the engine flywheel
 F02P 1/04
·  the generator being specially adapted for use with specific engine types, e.g. engines with V-arrangement of cylinders
 F02P 1/06
·  Generator drives, e.g. having snap couplings
 F02P 1/08
·  Layout of circuits
 F02P 3/00
Other installations
 F02P 3/01
·  Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator (with magneto- or dynamo-electric generators F02P 1/00; piezo-electric ignition F02P 3/12; with continuous electric spark F02P 15/10)  [4]
 F02P 3/02
·  having inductive energy storage, e.g. arrangements of induction coils
 F02P 3/04
·  ·  Layout of circuits
 F02P 3/045
·  ·  ·  for control of the dwell or anti-dwell time  [4]
 F02P 3/05
·  ·  ·  for control of the magnitude of the current in the ignition coil (during starting F02P 15/12)  [4]
 F02P 3/055
·  ·  ·  with protective means to prevent damage to the circuit or the ignition coil  [4]
 F02P 3/06
·  having capacitive energy storage (piezo-electric or electrostatic ignition F02P 3/12)
 F02P 3/08
·  ·  Layout of circuits (for low tension F02P 3/10)
 F02P 3/09
·  ·  ·  for control of the charging current in the capacitor (F02P 15/12 takes precedence)  [4]
 F02P 3/10
·  ·  Low-tension installation, e.g. using surface-discharge sparking plugs
 F02P 3/12
·  Piezo-electric ignition; Electrostatic ignition
 F02P 5/00 - 
F02P 11/00
Advancing or retarding electric ignition spark; Arrangements of distributors or of circuit-makers or -breakers for electric spark ignition; Electric spark ignition control or safety means, not otherwise provided for
 F02P 5/00
Advancing or retarding ignition
 F02P 5/02
·  non-automatically; dependent on position of personal controls of engine, e.g. throttle position
 F02P 5/04
·  automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions (dependent on position of personal controls of engine F02P 5/02)
 F02P 5/05
·  ·  using mechanical means  [4]
 F02P 5/06
·  ·  ·  dependent on engine speed, e.g. by mechanical means only (dependent on fluid pressure in engine F02P 5/10)
 F02P 5/08
( transferred to F02P 5/145, F02P 5/15, F02P 5/155 )
 F02P 5/10
·  ·  ·  dependent on fluid pressure in engine, e.g. combustion-air pressure
 F02P 5/12
·  ·  ·  ·  dependent on a specific pressure other than that of combustion-air, e.g. of exhaust, cooling fluid, lubricant
 F02P 5/14
·  ·  ·  dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature
 F02P 5/145
·  ·  using electrical means  [4]
 F02P 5/15
·  ·  ·  Digital data processing  [4]
 F02P 5/155
·  ·  ·  Analogue data processing  [4]
 F02P 5/16
·  characterised by the mechanical transmission between sensing elements or personal controls and final actuating elements
 F02P 7/00
Arrangement of distributors, circuit-makers or -breakers, or pick-up devices (advancing or retarding ignition F02P 5/00; constructions of such devices per se, see the relevant classes of section H; rotary switches per se H01H 19/00; contact-breakers, distributors per se H01R 39/00; generators H02K)
 F02P 7/02
·  of distributors
 F02P 7/03
·  ·  with electrical means (ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders F02P 15/08)  [4]
 F02P 7/04
·  ·  having distributors with air-tight casing
 F02P 7/06
·  of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
 F02P 7/063
·  ·  Mechanical pick-up devices, circuit-makers or -breakers, e.g. contact-breakers  [4]
 F02P 7/067
·  ·  Electromagnetic pick-up devices  [4]
 F02P 7/07
·  ·  ·  Hall-effect pick-up devices  [4]
 F02P 7/073
·  ·  Optical pick-up devices  [4]
 F02P 7/077
·  ·  Circuits therefor, e.g. pulse generators  [4]
 F02P 7/08
·  ·  having air-tight casings
 F02P 7/10
·  Drives of distributors or of circuit-makers or -breakers
 F02P 9/00
Electric spark ignition control, not otherwise provided for
 F02P 11/00
Safety means for electric spark ignition, not otherwise provided for
 F02P 11/02
·  Preventing damage to engines or engine-driven gearing
 F02P 11/04
·  Preventing unauthorised use of engines (of vehicles B60R 25/04; ignition locks H01H 27/00)
 F02P 11/06
·  Indicating unsafe conditions
 F02P 13/00
Sparking plugs structurally combined with other parts of internal-combustion engines (with fuel injectors F02M 57/06; predominant aspects of the parts, see the relevant subclasses)
 F02P 15/00
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P 1/00-F02P 13/00
 F02P 15/02
·  Arrangements having two or more sparking plugs
 F02P 15/04
·  one of the spark electrodes being mounted on the engine working piston
 F02P 15/06
·  the electric spark triggered by engine working cylinder compression
 F02P 15/08
·  having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
 F02P 15/10
·  having continuous electric sparks
 F02P 15/12
·  having means for strengthening spark during starting
 F02P 17/00
Testing, e.g. in combination with adjusting, of ignition installations, e.g. of timing (testing fuel injection apparatus F02M 65/00; in general F23Q); Testing of ignition timing in compression-ignition engines
 F02P 19/00 - 
F02P 23/00
Other ignition
 F02P 19/00
Incandescent ignition, e.g. during starting of internal-combustion engines; Combination of incandescent and spark ignition
 F02P 19/02
·  electric, e.g. layout of circuits of apparatus having glowing plugs
 F02P 19/04
·  non-electric, e.g. heating incandescent spots by burners (use of burners for direct ignition F02P 21/00)
 F02P 21/00
Direct use of flames or burners for ignition
 F02P 21/02
·  the flames being kept burning essentially external to engine working chambers
 F02P 21/04
·  Burning-cartridges or like inserts being arranged in engine working chambers (as starting aid F02N 17/02)
 F02P 23/00
Other ignition
 F02P 23/02
·  Friction, pyrophoric, or catalytic ignition
 F02P 23/04
·  Other physical ignition means, e.g. using laser rays