Exhaust manifold with catalytic wall for internal-combustion eng

Details Exhaust manifold with catalytic wall for internal-combustion eng Exhaust manifold with catalytic wall for internal-combustion eng

1993-02-16

1995-02-07

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

422174, 422180, F01N 328

Patent

active

053866967

ABSTRACT:
Exhaust manifold for catalytic treatment of the exhaust gases of an internal-combustion engine comprising a metallic outer tube (1) including a catalyst layer (4) in direct contact with the exhaust gases. According to the invention, the manifold also comprises at least one inner tubular element (2), substantially coaxial to said outer tube (1) and providing with the latter at least one space (3), the inner surface of said inner tube (2) being coated by said catalyst layer (4).

REFERENCES:
patent: 3642094 (1972-02-01), Yancey
patent: 3683625 (1972-08-01), McCrink
patent: 4022019 (1977-05-01), Garcea
patent: 4186172 (1980-01-01), Scholz
patent: 4220625 (1980-09-01), Toh
patent: 5070694 (1991-12-01), Whittenberger

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