Oil removal apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoki Takeuchi
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Abstract
An object of the present invention is to suppress a blockage caused by oil particles in an upstream side of a filter in an oil removal apparatus that collects oil particles in a filter disposed between an anode and a cathode. While an internal combustion engine is operative, application of a voltage to a bipolar electrode is controlled such that a voltage application period, in which the voltage is applied to the bipolar electrode, and a voltage application stoppage period, in which application of the voltage to the bipolar electrode is stopped, are repeated alternately at predetermined periodic intervals.
Claims6
An oil removal apparatus that removes oil particles contained in blow-by gas flowing through a blow-by gas passage of an internal combustion engine,
- the oil removal apparatus comprising:
- a bipolar electrode having an anode and a cathode that extend in a flow direction of said blow-by gas;
- a filter formed from a dielectric and disposed between said anode and said cathode of said bipolar electrode;
- and
- a controller comprising at least one processor configured to control application of a voltage to said bipolar electrode, wherein
- said controller controls application of said voltage to said bipolar electrode such that while said internal combustion engine is operative, a voltage application period in which said voltage is applied to said bipolar electrode and a voltage application stoppage period in which application of said voltage to said bipolar electrode is stopped are repeated alternately at predetermined periodic intervals, wherein one of the predetermined periodic intervals is a time period shorter than a time period in which the oil particles flow out of said filter after flowing into said filter.
Dependencies are inferred from the claim text.