JPS56133658A - Display device for degree of oil deterioration - Google Patents

Display device for degree of oil deterioration

Info

Publication number
JPS56133658A
JPS56133658A JP3705080A JP3705080A JPS56133658A JP S56133658 A JPS56133658 A JP S56133658A JP 3705080 A JP3705080 A JP 3705080A JP 3705080 A JP3705080 A JP 3705080A JP S56133658 A JPS56133658 A JP S56133658A
Authority
JP
Japan
Prior art keywords
time
temperature
deterioration
oil
degree
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.)
Pending
Application number
JP3705080A
Other languages
Japanese (ja)
Inventor
Satoshi Okawa
Akira Matsuda
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP3705080A priority Critical patent/JPS56133658A/en
Publication of JPS56133658A publication Critical patent/JPS56133658A/en
Pending 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
    • G01N33/2888—Lubricating oil characteristics, e.g. deterioration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To display the deterioration degree of lubricating oil and its change time by finding the mean value of the temperature of the lubricating oil in a constant time, by calculating the degree of deterioration according to the deterioration curve of the oil temperature of the lubricating oil to the time, and by integrating it. CONSTITUTION:Temperature sensor 1, provided to an engine, detects the temperature of engine oil and outputs temperature signal Vt. Then, Vt is amplified by amplifier 2 and then applied to an A-D converter via low-pass filter 3 to obtain output Dt. The sampling period is set to (T2-T1)/n, and mean-value circuit 5 sums up (n) input signals Dt to calculate their mean value and outputs Dtheta as the representative temperature value in time (T2-T1). On the basis of the known deterioration curve, arithmetic circuit 6 calculates a deterioration time from obtained representative value temperature (theta) and outputs signal Dh. Arithmetic circuit 7 finds reciprocal U of the deterioration degree, i.e. dterioration time and arithmetic circuit 8 integrates U in sequence, so that the time when the sum reaches one is regarded as the time of an oil change.
JP3705080A 1980-03-24 1980-03-24 Display device for degree of oil deterioration Pending JPS56133658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3705080A JPS56133658A (en) 1980-03-24 1980-03-24 Display device for degree of oil deterioration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3705080A JPS56133658A (en) 1980-03-24 1980-03-24 Display device for degree of oil deterioration

Publications (1)

Publication Number Publication Date
JPS56133658A true JPS56133658A (en) 1981-10-19

Family

ID=12486745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3705080A Pending JPS56133658A (en) 1980-03-24 1980-03-24 Display device for degree of oil deterioration

Country Status (1)

Country Link
JP (1) JPS56133658A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875741A (en) * 1981-10-30 1983-05-07 Hitachi Ltd Pickup tube
JPS5920096U (en) * 1982-07-28 1984-02-07 株式会社小松製作所 Lubricating oil deterioration indicator
JPS6323645U (en) * 1986-07-31 1988-02-16
WO2003100760A1 (en) * 2002-05-29 2003-12-04 Yamaha Hatsudoki Kabushiki Kaisha Product state indicating system, program for product state indicating system, recording medium for product state indicating system
EP1217261A3 (en) * 2000-12-20 2005-03-30 Sew-Eurodrive GmbH & Co. KG Optimization of the time intervals for oil-change for a transmission
DE10142751B4 (en) * 2000-12-20 2012-04-12 Sew-Eurodrive Gmbh & Co. Kg Device for a drive and method for the device
US8361395B2 (en) 2008-06-24 2013-01-29 Caterpillar Inc. Light based fuel sulfur sensor and system
JP2013060965A (en) * 2011-09-12 2013-04-04 Daikin Industries Ltd Hydraulic unit
JP2013148389A (en) * 2012-01-17 2013-08-01 Hitachi Constr Mach Co Ltd Fuel deterioration prediction device
US20140005912A1 (en) * 2012-06-29 2014-01-02 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Control apparatus for an engine
JP2019023617A (en) * 2017-05-23 2019-02-14 ゼネラル・エレクトリック・カンパニイ Turbomachine lubricating oil analyzer system, computer program product and related methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258593A (en) * 1975-11-04 1977-05-14 Hochstein Peter A Method of and apparatus for monitoring deterioration of oil
JPS53130087A (en) * 1977-04-19 1978-11-13 Yaskawa Denki Seisakusho Kk Life meter for grease

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258593A (en) * 1975-11-04 1977-05-14 Hochstein Peter A Method of and apparatus for monitoring deterioration of oil
JPS53130087A (en) * 1977-04-19 1978-11-13 Yaskawa Denki Seisakusho Kk Life meter for grease

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875741A (en) * 1981-10-30 1983-05-07 Hitachi Ltd Pickup tube
JPH0354418B2 (en) * 1981-10-30 1991-08-20
JPS5920096U (en) * 1982-07-28 1984-02-07 株式会社小松製作所 Lubricating oil deterioration indicator
JPS6323645U (en) * 1986-07-31 1988-02-16
DE10142751B4 (en) * 2000-12-20 2012-04-12 Sew-Eurodrive Gmbh & Co. Kg Device for a drive and method for the device
EP1217261A3 (en) * 2000-12-20 2005-03-30 Sew-Eurodrive GmbH & Co. KG Optimization of the time intervals for oil-change for a transmission
US7242312B2 (en) 2002-05-29 2007-07-10 Yamaha Hatsudoki Kabushiki Kaisha Product state display system, and program and recording medium for the same
WO2003100760A1 (en) * 2002-05-29 2003-12-04 Yamaha Hatsudoki Kabushiki Kaisha Product state indicating system, program for product state indicating system, recording medium for product state indicating system
US8361395B2 (en) 2008-06-24 2013-01-29 Caterpillar Inc. Light based fuel sulfur sensor and system
JP2013060965A (en) * 2011-09-12 2013-04-04 Daikin Industries Ltd Hydraulic unit
JP2013148389A (en) * 2012-01-17 2013-08-01 Hitachi Constr Mach Co Ltd Fuel deterioration prediction device
US20140005912A1 (en) * 2012-06-29 2014-01-02 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Control apparatus for an engine
US9617943B2 (en) * 2012-06-29 2017-04-11 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Control apparatus for an engine
JP2019023617A (en) * 2017-05-23 2019-02-14 ゼネラル・エレクトリック・カンパニイ Turbomachine lubricating oil analyzer system, computer program product and related methods

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