Silencer combined with catalytic converter for internal combustion engines and modular diaphragm elements for said silencer

1997 ◽  
Vol 102 (2) ◽  
pp. 680
Author(s):  
Albino Gavoni
Keyword(s):  
Internal Combustion Engines ◽  
Catalytic Converter ◽  
Internal Combustion ◽  
Combustion Engines

Optimization of the Flow in the Catalytic Converter of Internal Combustion Engines by Means of Screens

2008 ◽  
Vol 130 (5) ◽  
Author(s):  
Eduardo M. R. Arantes ◽  
Marcello A. F. Medeiros
Keyword(s):  
Pressure Drop ◽  
Service Life ◽  
Internal Combustion Engines ◽  
Catalytic Converter ◽  
Internal Combustion ◽  
Current Paper ◽  
Combustion Engines ◽  
Flow Uniformity ◽  
And Performance ◽  
Large Improvement

The flow in the automotive catalytic converter is, in general, not uniform. This significantly affects cost, service life, and performance, in particular, during cold startup. The current paper reports on a device that provided a large improvement in flow uniformity. The device is to be placed in the converter inlet diffuser and is constructed out of ordinary screens. It is cheap and easy to install. Moreover, the device does not present most of the undesired effects, such as increase in pressure drop and time to light off, often observed in other devices developed for the same purpose.

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