Exhaust emission control apparatus

Patent · Tue Sep 24 00:00:00 EDT 1991

OSTI ID:5551748

Eng, J W

This patent describes an exhaust control apparatus for muffling noise and treating odors and pollutants, including solid particulate and gases in the exhaust of an internal combustion engine. It comprises an exhaust inlet tube for receiving the exhaust generated by an internal combustion engine; a cyclone barrier concentrically surrounding the exhaust inlet tube, a ring cavity between the cyclone tube and exhaust inlet tube defining a cyclone chamber in which the exhaust is treated; means for directing the exhaust from the exhaust inlet tube into the cyclone chamber; electrode means having small openings through which the exhaust passes to enter the cyclone chamber, the electrode means generating electrostatic forces which charge the solid particulate in the exhaust, ionize air and generate ozone in the cyclone chamber near the electrode; means for injecting air into the cyclone chamber causing centrifugal flow of the air and the exhausted within the cyclone chamber and increasing a dwell time of the exhaust within the cyclone chamber.

• Assignee: NOV; NOV-91-042052; EDB-92-058588
• Patent Number(s): US 5050377; A
• Application Number: PPN: US 7-472960
• OSTI ID: 5551748
• Resource Relation: Patent File Date: 31 Jan 1990
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
EXHAUST SYSTEMS
POLLUTION CONTROL EQUIPMENT
INTERNAL COMBUSTION ENGINES
CYCLONE SEPARATORS
GASES
NOISE POLLUTION CONTROL
PARTICULATES
CONCENTRATORS
CONTROL
ENGINES
EQUIPMENT
FLUIDS
HEAT ENGINES
INERTIAL SEPARATORS
PARTICLES
POLLUTION CONTROL
SEPARATION EQUIPMENT
330700* - Advanced Propulsion Systems- Emission Control
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
330100 - Internal Combustion Engines