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IPC Subgroup
F02C 9/26

Control of fuel supply

Introduced: January 1980

Last revised: January 2006

Full Title

Controlling gas-turbine plants; Controlling fuel supply in air-breathing jet-propulsion plants > Control of fuel supply

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Subclass:
GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS

Filing statistics

IPC F02C 9/26 belongs to the parent subclass F02C, which recorded 69,246 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,776 in 2013 to 5,372 in 2023 (-31%). The most active applicants in class F02 are TOYOTA MOTOR CORPORATION (8,687 applications), ROBERT BOSCH (8,328 applications) and FORD GLOBAL TECHNOLOGIES (7,423 applications).

Source: EPO PATSTAT, worldwide filings

9 direct subcodes

Child Classifications

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  • F02C 9/28 Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
  • F02C 9/3 characterised by variable fuel pump output
  • F02C 9/36 characterised by returning of fuel to sump
  • F02C 9/38 characterised by throttling and returning of fuel to sump
  • F02C 9/4 specially adapted to the use of a special fuel or a plurality of fuels
  • F02C 9/42 specially adapted for the control of two or more plants simultaneously
  • F02C 9/44 responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption
  • F02C 9/46 Emergency fuel control

Top Applicants

Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TOYOTA MOTOR CORPORATION 8,687
  2. ROBERT BOSCH DE 8,328
  3. FORD GLOBAL TECHNOLOGIES US 7,423
  4. GE (GENERAL ELECTRIC COMPANY) US 5,732
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
  6. HYUNDAI MOTOR COMPANY KR 4,699
  7. TOYOTA MOTOR CORPORATION JP 4,541
  8. DENSO CORPORATION 3,711
  9. WEICHAI POWER COMPANY 3,486
  10. SAFRAN AIRCRAFT ENGINES FR 3,249