초록 ▼

An electrostatic precipitator, including for a diesel engine electrostatic crankcase ventilation system for blowby gas, includes a corona discharge electrode assembly in a housing, an insulator extending along an internal surface of a wall of the housing, a power supply in the housing on the opposit

An electrostatic precipitator, including for a diesel engine electrostatic crankcase ventilation system for blowby gas, includes a corona discharge electrode assembly in a housing, an insulator extending along an internal surface of a wall of the housing, a power supply in the housing on the opposite side of the insulator from the housing wall such that the insulator is between the housing wall and the power supply, and a low voltage lead extending through the housing wall and through the insulator to the power supply, eliminating pass-through of a high voltage lead through the housing wall and through the insulator. The power supply is preferably provided in the hollow interior of the corona discharge electrode assembly.

대표청구항 ▼

1. An electrostatic precipitator comprising a housing, a corona discharge electrode assembly in said housing, an insulator extending along an internal surface of a wall of said housing, a power supply in said housing on the opposite side of said insulator from said housing wall such that said insula

1. An electrostatic precipitator comprising a housing, a corona discharge electrode assembly in said housing, an insulator extending along an internal surface of a wall of said housing, a power supply in said housing on the opposite side of said insulator from said housing wall such that said insulator is between said housing wall and said power supply, a low voltage lead extending through said housing wall and through said insulator to said power supply, said power supply supplying high voltage for said corona discharge electrode assembly, wherein said housing comprises a canister closed by a lid, said lid providing said housing wall having said internal surface along which said insulator extends, said low voltage lead extending through said lid and through said insulator.2. The electrostatic precipitator according to claim 1 wherein said canister has an open end closed by said lid, and wherein said power supply is recessed in said housing inwardly of said open end.3. The electrostatic precipitator according to claim 1 wherein said power supply is spaced from said lid by said insulator therebetween.4. An electrostatic precipitator comprising a canister housing a corona discharge electrode assembly having a hollow interior, and a power supply in said hollow interior and supplying high voltage for said corona discharge electrode assembly, wherein said canister extends axially and has an open axial end closed by a lid, and said corona discharge electrode assembly is mounted to said lid and extends axially into said canister, said lid having first and second distally opposite faces, said first face facing axially outwardly away from said canister, said second face facing axially inwardly into said canister, said corona discharge electrode assembly being mounted to said lid by an insulator extending along said second face, said insulator being axially between said second face and said power supply.5. The electrostatic precipitator according to claim 4 wherein said insulator has first and second distally opposite faces, said first face of said insulator facing axially toward and engaging said second face of said lid, said second face of said insulator facing axially inwardly into said canister, said hollow interior of said corona discharge electrode assembly extending from said second face of said insulator axially inwardly into said canister, with said power supply facing said second face of said insulator and extending axially inwardly in said hollow interior, said power supply and said hollow interior being on said second face side of said insulator opposite from said first face side of said insulator.6. The electrostatic precipitator according to claim 5 comprising a low voltage lead extending through said lid and through said insulator.7. The electrostatic precipitator according to claim 6 wherein said corona discharge electrode assembly comprises an insulating bobbin extending axially between first and second axial ends, and having an inner surface defining said hollow interior, and an outer surface facing said canister and spaced inwardly therefrom, and a corona discharge conductor extending along said outer surface.8. The electrostatic precipitator according to claim 7 wherein said first axial end of said bobbin is mounted to said second face of said lid and provides said insulator.9. A diesel engine electrostatic crankcase ventilation system for blowby gas comprising a housing having an inlet receiving said blowby gas and having an outlet discharging said blowby gas after removal of suspended particulate matter including oil droplets from said blowby gas, said housing comprising an axially extending canister having an open axial end closed by a lid, a corona discharge electrode assembly in said canister and having a hollow interior, a power supply in said hollow interior and supplying high voltage for said corona discharge electrode assembly, said corona discharge electrode assembly being mounted to said lid and extending axially into said canister, said lid having first and second distally opposite faces, said first face of said lid facing axially outwardly away from said canister, said second face of said lid facing axially inwardly into said canister, said corona discharge electrode assembly being mounted to said lid by an insulator extending along said second face of said lid, said insulator being axially between said second face of said lid and said power supply, said insulator having first and second distally opposite faces, said first face of said insulator facing axially toward and engaging said second face of said lid, said second face of said insulator facing axially inwardly into said canister, said hollow interior of said corona discharge electrode assembly extending from said second face of said insulator axially inwardly into said canister, said power supply facing said second face of said insulator and extending axially inwardly in said hollow interior, said hollow interior and said power supply being on said second face side of said insulator opposite from said first face side of said insulator.10. The diesel engine electrostatic crankcase ventilation system according to claim 9 wherein said insulator is axially aligned with said hollow interior and axially spaces said power supply from said lid and is disposed axially inwardly of said open axial end of said canister.11. The diesel engine electrostatic crankcase ventilation system according to claim 10 comprising a low voltage lead extending axially through said first and second faces of said lid and axially through said first and second faces of said insulator.