Combination muffler and catalytic converter

Patent · Tue Sep 27 04:00:00 EDT 1977

OSTI ID:5212421

Bailey, C H; Dillon, J E

A combination muffler and catalytic converter utilizes an axial flow monolithic catalytic element to treat exhaust gases from an internal combustion engine and partially reduce their sound. A perforated chamber around the catalytic element, a downstream perforated tube, and an upstream flow reversal chamber further reduce the sound. The device incorporates a venturi in the exhaust gas inlet path to add secondary air. Gas swirling and gas flow reversal structure is also provided to thoroughly mix the secondary air with the exhaust gases before the mixture is passed through a flow distribution plate and into contact with the catalytic element.

• Assignee: UOP Inc.
• Patent Number(s): US 4050903
• OSTI ID: 5212421
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330702* -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
AIR
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CHALCOGENIDES
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
MIXING
NOISE POLLUTION CONTROL
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TUBES
VENTURI TUBES
WASTES