Method of removing the fuel contained in the lubricating oil of an internal-combustion engine and engine using same
AssigneeInstitut Francais du Petrole
InventorsXavier Montagne, Nicolas Jeuland
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Abstract
The present invention relates to a method removing the fuel contained in the lubricating oil of an internal-combustion engine comprising an engine block with an air intake circuit for a fuel mixture, a burnt gas exhaust circuit, an oil sump and means for pumping the oil contained in the sump. According to the invention, the method consists in removing, after pumping the oil, the fuel diluted in the oil by heating intermittently the oil for a time ranging from 1/100 second to 10 second, in order to obtain vaporization of the fuel diluted in the oil.
Claims9
A method for removing a fuel contained in a lubricating oil of an internal-combustion engine comprising an engine block with an air intake circuit for a fuel mixture, a burnt gas exhaust circuit, an oil sump and means for pumping the oil contained in the sump, the method comprising:
- removing, after pumping the oil, the fuel diluted in the oil by heating intermittently the oil for a time ranging from 1/100 second to 10 seconds, in order to obtain vaporization of the fuel diluted in the oil.
An internal-combustion engine, the engine comprising:
- an engine block with an air intake circuit for a fuel mixture;
- a burnt gas exhaust circuit;
- an oil sump;
- and
- means for pumping an oil contained in the sump, wherein the means for pumping the oil further comprising:
- means for removing a fuel diluted in the oil by heating intermittently the oil with means for heating the oil for a time ranging from 1/100 second to 10 seconds in order to obtain vaporization of the fuel diluted in the oil.
Dependencies are inferred from the claim text.