Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MANAGING LUBRICANT OIL, AND METHOD FOR PREDICTING LIFE OF LUBRICANT OIL
Document Type and Number:
WIPO Patent Application WO/2016/114302
Kind Code:
A1
Abstract:
A method for managing a lubricant oil according to the present invention is a method for managing a lubricant oil containing an antioxidant agent by means of the determination of the degree of deterioration of the lubricant oil, said method being characterized by employing a determination method a and a determination method b as mentioned below. A determination method a: a method in which the infrared ray absorption spectrum of the lubricant oil is measured with a Fourier transform infrared spectrometer to calculate the amounts of the antioxidant agent and a modified substance having an antioxidant function and then the degree of deterioration of the lubricant oil is determined from the amounts. A determination method b: a method in which the lubricant oil is filtrated through a filter, then the color difference of a trapped substance or the lubricant oil is measured with a colorimeter, and then the degree of deterioration of the lubricant oil or the degree of contamination with foreign substances is determined from the color difference.

Inventors:
SHINODA JITSUO (JP)
Application Number:
PCT/JP2016/050833
Publication Date:
July 21, 2016
Filing Date:
January 13, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
G01N21/359; G01J3/50; G01N21/47; G01N21/59; G01N33/30
Foreign References:
JPS6363967A1988-03-22
JP2004212292A2004-07-29
Other References:
JITSUO SHINODA ET AL.: "Turbine-yu no Aratana Kanri Shuho ni Tsuite", IDEMITSU TRIBO REVIEW, vol. 37, 2014, pages 29 - 32
AGILENT 5500 SERIES FTIR OPERATION MANUAL, September 2013 (2013-09-01), Retrieved from the Internet
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
Download PDF: