Silencer

Details Silencer Silencer

1996-05-17

1998-06-02

Richter, Sheldon

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

422176, F01N 328

Patent

active

057584974

ABSTRACT:
An apparatus for silencing and catalytic treatment of gases has an air-tight casing connected to an exhaust inlet pipe and to an exhaust outlet pipe, acoustic compartments, monolithic bodies, and a diffuser element. The diffuser element is connected to the inlet pipe, or further downstream within the casing. The diffuser element distributes the gases evenly across the inlet face of the monolithic bodies. The diffuser element is a guide baffle or plate and a juxtaposed stagnation baffle or plate, which causes both flow stagnation in front of the stagnation plate and the gases to flow radially within the diffuser element. The diffuser element has apertures which are pervaded by partial flows of the gas and are adapted to provide additional recovery in the gas flow passing through the diffuser element. The geometry defining the fluid flow field within the diffuser is designed to prevent flow separation from the contour walls of the diffuser.

REFERENCES:
patent: 2677231 (1954-05-01), Cornelius
patent: 3852042 (1974-12-01), Wagner
patent: 3897853 (1975-08-01), Frederiksen
patent: 4032310 (1977-06-01), Ignoffo
patent: 5150573 (1992-09-01), Maus et al.
patent: 5355973 (1994-10-01), Wagner et al.
patent: 5426269 (1995-06-01), Wagner et al.

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