Combination catalytic converter and muffler for an exhaust system

Patent · Tue Jun 24 04:00:00 EDT 1980

OSTI ID:5712692

Olson, D A

A combination muffler and catalytic converter for an exhaust system is desclosed. The unit comprises an outer housing having an inlet to receive exhaust gases, and a venturi is located within the housing and provides an aspirating effect to draw air into the housing from the atmosphere for the catalytic conversion. The venturi includes a diverging conical outlet section, and the gases are discharged from the outlet section through a plurality of perforations which aids in obtaining a uniform distribution of the gases to the catalytic unit that is located centrally of the housing. After passing through the catalytic unit, the gases are discharged from the housing through a discharge pipe having a closed inner end and perforations in its wall through which the gases flow. The perforated discharge pipe provides a selfcontrolling system which prevents overheating of the catalyst.

• Assignee: Nelson Industries Inc
• Patent Number(s): US 4209493
• OSTI ID: 5712692
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330700 -- Advanced Propulsion Systems-- Emission Control
CATALYTIC CONVERTERS
CONTROL SYSTEMS
DESIGN
DISTRIBUTION
ENGINES
EQUIPMENT
FLUIDS
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NOISE POLLUTION ABATEMENT
OPENINGS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT