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DE895498C - Aero engine oils - Google Patents

Aero engine oils

Info

Publication number
DE895498C
DE895498C DED8523D DED0008523D DE895498C DE 895498 C DE895498 C DE 895498C DE D8523 D DED8523 D DE D8523D DE D0008523 D DED0008523 D DE D0008523D DE 895498 C DE895498 C DE 895498C
Authority
DE
Germany
Prior art keywords
sulfur
engine oils
oils
aero engine
aircraft engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DED8523D
Other languages
German (de)
Inventor
Alexander Von Dr Philippovich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Versuchsanstalt fuer Luftfahrt eV
Original Assignee
Deutsche Versuchsanstalt fuer Luftfahrt eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Versuchsanstalt fuer Luftfahrt eV filed Critical Deutsche Versuchsanstalt fuer Luftfahrt eV
Priority to DED8523D priority Critical patent/DE895498C/en
Application granted granted Critical
Publication of DE895498C publication Critical patent/DE895498C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/043—Sulfur; Selenenium; Tellurium
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds

Landscapes

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

Description

Flugmotorenöle Die Brauchbarkeit eines Schmieröles hängt sowohl von seiner Beständigkeit (Alterungserscheinungen) als auch von der Schmierfähigkeit ab.Aviation engine oils The usefulness of a lubricating oil depends on both its durability (signs of aging) as well as its lubricity away.

Bekannt ist es, Hochdruckschmiermitteln filmbildende Zusätze zuzugeben, die Phosphor, Chlor, Schwefel usw. enthalten. Gewöhnlichen Schmierölen wird ab und zu auch elementarer Schwefel zugegeben. Bei Flugmotorenöl hat man bisher die Zugabe von Schwefel oder Schwefelverbindungen peinlichst vermieden, weil durch den Schwefelzusatz die Beständigkeit des Schmieröles stark herabgesetzt wurde. Versuche haben nun gezeigt, daß die Schmierfestigkeit von Flugmotorenölen ausschlaggebend durch den Schwefelgehalt beeinflußt wird, und zwar in dem Sinn, daß mit steigendem Schwefelgehalt die Schmierfestigkeit dieser Flugmotorenöle besser wird. In Frage kommen hier natürliche und synthetische Öle. Die Art des im Öl vorhandenen Schwefels wäre dabei von untergeordneter Bedeutung. Es zeigte sich weiterhin, daß eine untere Grenze für die Bewährung der Flugmotorenöle bei einem Schwefelgehalt von o,2 % lag. Öle mit einem geringeren Schwefelgehalt wiesen ein ungünstiges Verhalten auf. Als obere. Grenze kommt ein Gehalt von rund z °/o Schwefel in Betracht. Das Zusetzen von Schwefel kann auf beliebige Art erfolgen, beispielsweise dadurch, daß man das Flugmotorenöl mit schwefelreicheren ölen mischt oder Schwefelverbindungen zugibt, wie man dies bei Hochdruckschmiermitteln bereits ,durchführt.It is known to add film-forming additives to high-pressure lubricants, which contain phosphorus, chlorine, sulfur, etc. Ordinary lubricating oils are used from time to time also added elemental sulfur. In the case of aircraft engine oil, one has so far the addition of sulfur or sulfur compounds meticulously avoided because of the addition of sulfur the resistance of the lubricating oil was greatly reduced. Experiments have now shown that the lubricity of aircraft engine oils is decisive due to the sulfur content is influenced in the sense that, with increasing sulfur content, the lubricity resistance this aero engine oils gets better. Natural and synthetic ones come into question here Oils. The type of sulfur present in the oil would be of subordinate importance. It was also found that a lower limit for the performance of aircraft engine oils was at a sulfur content of 0.2%. Oils with a lower sulfur content exhibited unfavorable behavior. As upper. Limit comes a salary of around z ° / o sulfur in consideration. The addition of sulfur can be done in any way, for example, by mixing the aircraft engine oil with oils that are higher in sulfur or adding sulfur compounds, as is already the case with high-pressure lubricants , performs.

Claims (1)

PATENTANSPRUCH: Verwendung von natürlichen und synthetischen Schmierölen mit einem Gehalt von o,2 bis 2 1/o Schwefel als Flugmotorenöle.PATENT CLAIM: Use of natural and synthetic lubricating oils with a content of 0.2 to 2 1 / o sulfur as aircraft engine oils.
DED8523D 1943-08-12 1943-08-12 Aero engine oils Expired DE895498C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED8523D DE895498C (en) 1943-08-12 1943-08-12 Aero engine oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED8523D DE895498C (en) 1943-08-12 1943-08-12 Aero engine oils

Publications (1)

Publication Number Publication Date
DE895498C true DE895498C (en) 1953-11-02

Family

ID=7032565

Family Applications (1)

Application Number Title Priority Date Filing Date
DED8523D Expired DE895498C (en) 1943-08-12 1943-08-12 Aero engine oils

Country Status (1)

Country Link
DE (1) DE895498C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2243981A1 (en) * 1971-09-08 1973-03-15 Lubrizol Corp SULFUR-CONTAINING LUBRICANT ADDITIVES, PROCESS FOR THEIR MANUFACTURING AND THEIR USE IN LUBRICANTS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2243981A1 (en) * 1971-09-08 1973-03-15 Lubrizol Corp SULFUR-CONTAINING LUBRICANT ADDITIVES, PROCESS FOR THEIR MANUFACTURING AND THEIR USE IN LUBRICANTS

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