Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
  • F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
  • F16N7/32—Mist lubrication
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
  • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/28—Esters
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/28—Esters
  • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/28—Esters
  • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/30—Refrigerators lubricants or compressors lubricants
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/32—Wires, ropes or cables lubricants
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/34—Lubricating-sealants
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/36—Release agents or mold release agents
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/38—Conveyors or chain belts
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/40—Generators or electric motors in oil or gas winning field
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/42—Flashing oils or marking oils
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/44—Super vacuum or supercritical use
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/50—Medical uses
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C2210/00—Fluid
  • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a

Definitions

• the lubrication of compressed air tools is effected in such a manner that the compressed air supplied to the tool is contacted with a lubricating oil under such conditions as to suspend a quantity of the lubricating oil sufficient for the lubricating process in the form of fine drops in the air stream, whereupon the oil is carried with this stream to the movable parts of the compressed air tool which are to be lubricated, where also the expansion of the compressed air while carrying out a work takes place.
• the temperature of the air will be strongly lowered which results in the temperature of the oil being also lowered.
• the diesters as being substances more unitary from chemical viewpoint, possessing stabile flowing properties right down to the pour point, whereby underfreezings and increases of viscosity are avoided.
• the lubrication a lubricating medium or oil comprising one or more such esters.
• the content of the esters of the lubricating oil should usually amount to at least 25 percent, preferably at least 35 percent.
• the content of the esters should not be too high a one which is ascribed to a dillerent circumstance.
• dispersing pure esters or lubricating mediumshaving a relatively high content of the esters with air there will readily be formed drops, the sizes of which are too uniform to deposit satisfactorily on the surfaces to be lubricated.
• the esters are, however, diluted with a mineral oil having suitable properties, there will be formed after the dispersion of the mixture with air a suspension of drops, the sizes of which are more diifering, so that they deposit more readily on the surfaces to be lubricated.
• a lubricating oil is, therefore, used, the content of the esters set forth of which is preferably not over ca percent, more preferably not over about 70 percent.
• diesters of dibasic acids containing from 6 to 10 inclusive carbon atoms, may primarily be mentioned diesters of adipic acid, pimelic acid, azelaic acid, sebacic acid and pinic acid (3-carboxy-2,2-dimethyl cyclobutane acetic acid). Except the pinic acid, which is a dibasic cycloaliphatic acid, it is thus the question of dibasic aliphatic acids having each a straight, saturated carbon chain.
• the esters of these acids that have proved most suitable are the alkyl esters, that is, esters formed from alkanols.
• these alkanols may either be straight-chained or have a branched chain, and the number of carbon atoms should exceed the value 5.
• Esters which have proved suitable are, for example, those of the acids set forth with the different hexanols, such as n-hexanol and 2-propylpropanol-(1), the different heptanols, such as n-heptanol, heptanol-(3) and 5-methyl-hexanol-(3), the different octanols, such as 2-ethylhexanol-(1) and iso-octanol, the nonylalcohols, such as n-nonanol, the decylalcohols, such as n-decanol, the undecanols, such as n-undecanol, and also higher alcohols.
• lubricating oil according to the invention may also be incorporated one or more hydrophobing agents.
• these agents are lecithin and Lubrisol 541.
• the object of this addition which may amount to about 1 percent, but which does not usually exceed 0.5 percent, is to provide hydrophobic coatings on the metal surfaces of the compressed air tools. Ice crystals formed in the expansion of the pressure air are hereby prevented from depositing on the surfaces with accompanying less risks that the compressed air tool will clog.
• the mineral oil which is mixed with the diesters of dibasic acids to provide the lubricating medium of the invention should be a high antifreezing quality spindle oil having a pour point below 30 C., preferably below --40 C., having a viscosity of at least 35 est, preferably at least 40 est, at 20 C. It should accordingly have a low content of parafiinic hydrocarbons.
• the difference between the cloud point and pour point of the mixture should preferably not exceed about 10 degrees of Celcius.
• the compressed air tool lubricating oil may contain other additions, such as viscosity index improving agents, extreme pressure agents, inhibitors of different kinds and cloud point and/ or pour point depressants.
• Example A compressed air tool lubricating oil was made up by mixing together:
• the lubricating oil has been tested in a compressed air tool under standardized conditions. In this connection, it has been found fully superior to other oils on the market for the same purpose.
• compositions containing the named ingredients in the proportions stated are meant to include compositions containing the named ingredients in the proportions stated and any other ingredients which do not destroy the usefulness of the compositions for the purposes stated in the specifica- .tion.
• a method for the lubrication of compressed air tools which comprises mixing with the air supplied to the tool a sufiicient quantity of a composition consisting essentially of at least one member selected from the group consisting of diesters of dibasic aliphatic and cycloaliphatic carboxylic acids, containing from 6 to 10 inclusive carbon atoms with monovalent aliphatic alcohols, and a high antifreeze ing quality mineral oil.
• the mineral oil is a spindle-type oil having a pour point below -30 C. and a viscosity of at least 35 cst. at 20 C.
• diester is di-(2-ethylhexyl)-sebacate.
• composition utilized contains a surface active hydrophobing agent.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• General Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Lubricants (AREA)
• Duct Arrangements (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20268486

Family Applications (1)

Country Status (6)

Citations (4)

• 1963
  • 1963-06-04 US US285233A patent/US3277005A/en not_active Expired - Lifetime
  • 1963-06-05 NO NO148908A patent/NO118569B/no unknown
  • 1963-06-05 FI FI1136/63A patent/FI41181B/fi active
  • 1963-06-06 DK DK266963AA patent/DK108875C/da active
  • 1963-06-06 GB GB22513/63A patent/GB1039907A/en not_active Expired
  • 1963-06-06 DE DE1594336A patent/DE1594336C3/de not_active Expired
• 1964
  • 1964-06-06 DE DE19641444780D patent/DE1444780B/de active Pending

Patent Citations (4)

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