Invention Grant
- Patent Title: Method of determining the fuel content in a combustion engine lubricating oil
- Patent Title (中): 确定内燃机润滑油中的燃料含量的方法
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Application No.: US12668335Application Date: 2008-07-07
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Publication No.: US08398851B2Publication Date: 2013-03-19
- Inventor: Laurent Tiquet , Pierrick Rouille
- Applicant: Laurent Tiquet , Pierrick Rouille
- Applicant Address: FR Boulogne Billancourt
- Assignee: Renault S.A.S.
- Current Assignee: Renault S.A.S.
- Current Assignee Address: FR Boulogne Billancourt
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0704967 20070709
- International Application: PCT/FR2008/051258 WO 20080707
- International Announcement: WO2009/010678 WO 20090122
- Main IPC: B01D15/08
- IPC: B01D15/08

Abstract:
The invention relates to a device and to a method for determining the proportion of fuel in a combustion engine lubricating oil. The device according to the invention comprises a column (12) with at least 22000 theoretical plates and a steady state phase capable of separating the fuel, the oil, the internal standard contained in the oil and the solvent, in which the oil and the internal standard are diluted, and a heating module (120) capable of causing an increase in the temperature of the column (12) at a rate of at least 350° C./min. In the method according to the invention, the column (12) is subjected to determined cycles during which the pressure of the carrier gas and the temperature are varied.
Public/Granted literature
- US20110100092A1 METHOD OF DETERMINING THE FUEL CONTENT IN A COMBUSTION ENGINE LUBRICATING OIL Public/Granted day:2011-05-05
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