Noise and emission control apparatus

Patent · Tue Jul 22 00:00:00 EDT 1986

OSTI ID:5344299

Harris, H L

This patent describes a combination noise and emission control apparatus for use with an internal combustion engine comprising: an enclosed cylindrical housing having an inlet at one end thereof for connection with the exhaust of the engine and having an outlet at the opposite end thereof; noise reduction means mounted in the housing for reducing the noise emitted from the engine, the noise reduction means including at least one tubular member having a first end which opens toward the inlet and a second end opposite therefrom; converter means mounted in the housing for reducing noxious gases emitted from the engine, the converter means including a catalytic cell, transversely disposed in the cylindrical housing so as to separate an upstream portion of the housing from a downstream portion of the housing, for converting nitrogen oxides, carbon monoxides and unburned hydrocarbons entering the upstream portion of the housing with the exhaust gases to less noxious compounds in the downstream portion of the housing for discharge through the outlet; and diffuser means connected to the second end of the noise reduction means tubular member and disposed in the cylindrical housing between the catalytic cell and the inlet to diffuse and distribute the exhaust gases entering the upstream portion of the housing across the catalytic cell.

• Assignee: NOV; NOV-85-018340; EDB-86-150470
• Patent Number(s): US 4601168
• OSTI ID: 5344299
• Resource Relation: Patent File Date: Filed date 12 Dec 1984
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
CARBON MONOXIDE
AIR POLLUTION CONTROL
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
CATALYTIC CONVERTERS
NOISE POLLUTION CONTROL
NITROGEN OXIDES
EXHAUST GASES
EXHAUST SYSTEMS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
WASTES
330100* - Internal Combustion Engines
330701 - Emission Control- Nitrogen Oxides
330702 - Emission Control- Carbon Monoxide
330704 - Emission Control- Hydrocarbons
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)