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LUBRICATING OF MACHINES OR ENGINES IN GENERAL (lubricating in general F16N) ; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
Definition statement
This subclass/group covers:

Lubrication of machines or engines in general, where the lubrication system, or device for lubricating parts of the machine or engine, does not form part of the structure of the machine or engine.

Pressure lubrication, e.g. using pressure from pumps, crankcase pressure or the like to circulate the lubricant; including provision of lubricant passageways in crankshafts or connecting rods.

Lubrication specially adapted for engines with crankcase compression of fuel/air mixtures, or for engines in which lubricant is contained in fuel, combustion air or fuel/air mixture (e.g. two-stroke engines).

Heating, cooling or controlling temperature of lubricant.

Lubrication means facilitating engine starting, e.g. by conditioning or heating the lubricant.

Lubrication means specially adapted for facilitating the running-in or breaking-in of machines or engines.

Lubricating means having other significant or pertinent characteristics, e.g. introducing additives to lubricant, using fuel as lubricant, dip, splash or drip lubrication, non-pressurised lubrication.

Details, parts or accessories of lubricating, including controlling lubricant level or pressure, arrangement of lubricant conduits, purifying lubricant, filling or draining lubricant.

Indicating or safety features, e.g. to render machine or engine inoperative or idling on lubricant pressure failure.

Crankcase ventilating or breathing, e.g. breather valves or inlet air filters.

Relationship between large subject matter areas

Lubricating in general is covered by F16N. F01M is an application-oriented subclass in relation thereto, in respect of machines and engines as defined in the glossary below.

Lubricating subject-matter proper to F01M is classified there irrespective of its stated application, unless the classifiable features are peculiar to its stated application, in which case the subject-matter is classified only in the relevant classes F01- F04.

References relevant to classification in this subclass
This subclass/group does not cover:
Arrangement of lubricant coolers in engine cooling systems

Examples of places where the subject matter of this class is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Lubrication of steam engines
Lubrication of rotary-piston or oscillating-piston machines or engines
Lubrication of non-positive displacementmachines or engines, e.g. steam turbines
Lubrication of gas-turbine plants
Lubrication of cylinders of combustion engines
Lubrication of pumps for elastic fluids
Lubrication of rotary-piston or oscillating-piston pumps for elastic fluids
Lubrication of non-positive displacementpumps
Informative references
Attention is drawn to the following places, which may be of interest for search:
Crankshafts, connecting rods per se
Fluid level indicators in general
Measuring fluid-pressure in general
Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
Engine
A device for continuously converting fluid energy into mechanical power. Thus, this term includes, for example, steam piston engines or steam turbines per se, or internal-combustion piston engines, but it excludes single-stroke devices.
Pump
A device for continuously raising, forcing, compressing or exhausting fluid by mechanical or other means. Thus, this term includes fans or blowers. This term also includes methods of operation, unless otherwise specifically provided for.
Machine
A device which could equally be an engine or a pump, but not a device which is restricted to an engine or one which is restricted to a pump.
Lubricant
Any fluid (e.g. water, oil), fluent material (e.g. particulate graphite), semi-fluid material (e.g. oil with thickener), or semisolid material (e.g. grease), or any mixture of such types of substance, which is used for the specific purpose of lubrication.
Lubrication
Apparatus, arrangements or methods for introducing or applying a thin layer of a discrete lubricant between two or more relatively-moving adjacent solid surfaces of a device or apparatus, for the specific purpose of reducing friction, heat or wear between the adjacent surfaces.
Working fluid
The driven fluid in a pump or the driving fluid in an engine. The working fluid may be in a gaseous state, i.e. compressible, or liquid. In the former case coexistence of two states is possible.
Positive displacement
The way the energy of a working fluid is transformed into mechanical energy, in which variations of volume created by the working fluid in a working chamber produce equivalent displacements of the mechanical member transmitting the energy, the dynamic effect of the fluid being of minor importance, and vice-versa.
Non-positive displacement
The way the energy of a working fluid is transformed into mechanical energy, by transformation of the energy of the working fluid into kinetic energy, and vice-versa.
Pressure lubrication
Definition statement
This subclass/group covers:

Pressure lubrication

using lubricating pumps (pumps in general F04; lubricating pumps per se F16N)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Pumps in general F04
Lubricating pumps per se
Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores (crankshafts, connecting-rods, per se F16C)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Crankshafts, connecting-rods, per se
Timed lubrication (F01M 1/08 takes precedence)
Special rules of classification within this group

F01M 1/08 takes precedence

Indicating or safety devices (concerning lubricant level F01M 11/06, F01M 11/12)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Concerning lubricant level
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 F01M 11/08)
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Separating lubricant from air or fuel-air mixture before entry into cylinder
Heating, cooling, or controlling temperature of lubricant (arrangement of lubricant coolers in engine cooling system F01P 11/08) ; lubrication means facilitating engine starting
Definition statement
This subclass/group covers:

Heating, cooling, or controlling temperature of lubricant; lubrication means facilitating engine starting

Informative references
Attention is drawn to the following places, which may be of interest for search:
Arrangement of lubricant coolers in engine cooling system
Lubrication means specially adapted for machine or engine running-in
Definition statement
This subclass/group covers:

Lubrication means specially adapted for machine or engine running-in

Special rules of classification within this group

F01M 5/02 takes precedence

Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M 1/00 to F01M 7/00
Definition statement
This subclass/group covers:

Having means for introducing additives to lubricant;

Use of fuel as lubricant;

Dip or splash lubrication;

Drip lubrication;

Lubrication of valve gear or auxiliaries;

Non-pressurised lubrication, or non-closed-circuit lubrication, not otherwise provided for.

Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M 1/00 to F01M 9/00
Definition statement
This subclass/group covers:

Oilsumps;

Arrangements of lubricant conduits;

Mounting or connecting of lubricant purifying means relative to the machine or engine;

Details of lubricant purifying means;

Filling or draining lubricant of or from machines or engines;

Means for keeping lubricant level constant or for accommodating movement or position of machines or engines;

Separating lubricant from air or fuel-air mixture before entry into cylinder;

Indicating devices;

Other safety devices.

Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means (filters B01D)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Filters
Separating lubricant from air or fuel-air mixture before entry into cylinder (separating in general B01D)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Separating in general
Crankcase ventilating or breathing
Definition statement
This subclass/group covers:

Crankcase ventilating or breathing;

Blowby circuit layout;

Purification device details.

having means for purifying air before leaving crankcase, e.g. removing oil
Informative references
Attention is drawn to the following places, which may be of interest for search:
Separating in general
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Last Modified: 10/11/2013