FR2055145A5 - Liquid lubricant tester - Google Patents

Liquid lubricant tester

Info

Publication number
FR2055145A5
FR2055145A5 FR7026050A FR7026050A FR2055145A5 FR 2055145 A5 FR2055145 A5 FR 2055145A5 FR 7026050 A FR7026050 A FR 7026050A FR 7026050 A FR7026050 A FR 7026050A FR 2055145 A5 FR2055145 A5 FR 2055145A5
Authority
FR
France
Prior art keywords
film
liquid lubricant
thickness
heating
lubricant tester
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
FR7026050A
Other languages
French (fr)
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Application granted granted Critical
Publication of FR2055145A5 publication Critical patent/FR2055145A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/30—Oils, i.e. hydrocarbon liquids for lubricating properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/02—Measuring coefficient of friction between materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Automation & Control Theory (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The lubricating characteristics of a liquid are determined by creating a film of predetermined thickness, subjecting it to frictional heating and measuring the time taken for that heating to break down the film. The film is applied to a flame surface which has a sliding load transmission member resting on it and the surface is rorated. The film thickness is measured by interferometry and the thickness controlled by the rotational speed of the plane surface.
FR7026050A 1969-07-15 1970-07-15 Liquid lubricant tester Expired FR2055145A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3548569 1969-07-15
GB842370 1970-02-21

Publications (1)

Publication Number Publication Date
FR2055145A5 true FR2055145A5 (en) 1971-05-07

Family

ID=26242156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7026050A Expired FR2055145A5 (en) 1969-07-15 1970-07-15 Liquid lubricant tester

Country Status (4)

Country Link
JP (1) JPS5023834B1 (en)
CH (1) CH530640A (en)
DE (1) DE2034812B2 (en)
FR (1) FR2055145A5 (en)

Also Published As

Publication number Publication date
DE2034812B2 (en) 1974-03-21
DE2034812C3 (en) 1974-10-17
JPS5023834B1 (en) 1975-08-11
CH530640A (en) 1972-11-15
DE2034812A1 (en) 1971-02-04

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Legal Events

Date Code Title Description
ST Notification of lapse