Monolithic catalytic converter for improved thermal performance

Details Monolithic catalytic converter for improved thermal performance Monolithic catalytic converter for improved thermal performance

1984-04-23

1985-06-04

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Miscellaneous

428116, 428188, 502527, 422180, B01J 3504

Patent

active

045215324

ABSTRACT:
An automobile catalytic converter of extruded ceramic monolithic honeycomb structure for treatment of automotive exhaust gas. The monolithic structure contains longitudinally extended channels formed of thin walls in a periodic pattern of cross sections of different areas to induce different flow velocities of the exhaust gas in the immediate adjacent channels. Temperature gradients thereby produced between the adjacent channels promote heat transfer in the transverse direction of the honeycomb structure to prevent the formation of maximum temperature in each channel at the same longitudinal location of the channel wall.

REFERENCES:
patent: 3983283 (1976-09-01), Bagley
patent: 4042738 (1977-08-01), Gulati
patent: 4127691 (1978-11-01), Frost
patent: 4135018 (1979-01-01), Bonin et al.
patent: 4139144 (1979-02-01), Cunningham
patent: 4177307 (1979-12-01), Torii et al.
patent: 4233351 (1980-11-01), Okumura et al.

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