F02N STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
Description
F02N covers systems, devices, and methods for initiating combustion in internal combustion engines, including starter motors, ignition systems, cold-start aids, and auxiliary starting mechanisms. This classification encompasses starter designs, starting fuel injection systems, pre-heating devices (glow plugs, block heaters), and mechanical or electrical starting aids that facilitate engine ignition under various operating conditions. Technologies addressing challenges specific to cold-weather starting, high-altitude operation, and rapid engine spin-up fall within this scope. Inventions related to engine starting that do not fit more specific combustion engine classifications are classified here as a catch-all provision.
13 direct subcodes
Child Classifications
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- F02N 1/00 Starting apparatus having hand cranks (with intermediate power storage F02N5/00 - F02N15/00)
- F02N 11/00 Starting of engines by means of electric motors
- F02N 13/00 Starting of engines, or driving of starting apparatus by use of explosives, e.g. stored in cartridges
- F02N 15/00 Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N 19/00 Starting aids for combustion engines, not otherwise provided for
- F02N 2200/00 Parameters used for control of starting apparatus
- F02N 2250/00 Problems related to engine starting or engine's starting apparatus
- F02N 2300/00 Control related aspects of engine starting
- F02N 3/00 Other muscle-operated starting apparatus (with intermediate power storage F02N5/00 - F02N15/00)
- F02N 5/00 Starting apparatus having mechanical power storage
- F02N 7/00 Starting apparatus having fluid-driven auxiliary engines or apparatus
- F02N 9/00 Starting of engines by supplying auxiliary pressure fluid to their working chambers
- F02N 99/00 Subject matter not provided for in the other groups of this subclass
Top Applicants
Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 8,801
- FORD GLOBAL TECHNOLOGIES US 8,171
- GE (GENERAL ELECTRIC COMPANY) US 6,957
- HYUNDAI MOTOR COMPANY KR 5,390
- UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
- TOYOTA MOTOR CORPORATION JP 5,214
- TOYOTA MOTOR CORPORATION 4,149
- DENSO CORPORATION JP 3,400
- KIA MOTORS CORPORATION KR 3,388
- SAFRAN AIRCRAFT ENGINES FR 3,332