F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
Description
F01M covers lubrication systems and components for machines and engines, including oil supply mechanisms, filters, and circulation equipment applicable across various engine types. Within internal-combustion engines, it addresses crankcase ventilation systems designed to manage blow-by gases and maintain proper pressure differentials. This subclass encompasses lubricant distribution methods, cooling systems integrated with lubrication, and components such as oil pumps, regulators, and splash lubrication systems. Related aspects of engine design covered in adjacent classes (F01B–F01N) address specific engine types and combustion processes, while general fluid handling appears in other F-series sections.
8 direct subcodes
Child Classifications
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- F01M 1/00 Pressure lubrication
- F01M 11/00 Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M 13/00 Crankcase ventilating or breathing
- F01M 2250/00 Measuring
- F01M 3/00 Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture (separating lubricant from air or fuel-air mixture before entry into cylinder F01M11/08)
- F01M 5/00 Heating, cooling, or controlling temperature of lubricant (arrangement of lubricant coolers in engine cooling system F01P11/08); Lubrication means facilitating engine starting
- F01M 7/00 Lubrication means specially adapted for machine or engine running-in
- F01M 9/00 Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
Top Applicants
Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 9,989
- UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
- SAFRAN AIRCRAFT ENGINES FR 6,248
- HYUNDAI MOTOR COMPANY KR 4,530
- SIEMENS DE 4,461
- FORD GLOBAL TECHNOLOGIES US 4,029
- RAYTHEON TECHNOLOGIES CORPORATION US 3,947
- TOYOTA MOTOR CORPORATION JP 3,734
- GE (GENERAL ELECTRIC COMPANY) 3,415
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063