Exhaust manifold of multi-cylinder internal combustion engine

Details Exhaust manifold of multi-cylinder internal combustion engine Exhaust manifold of multi-cylinder internal combustion engine

1997-09-09

2000-02-01

Denion, Thomas E.

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

2989008, F01N 710

Patent

active

060189460

ABSTRACT:
An exhaust manifold made of plate metal in which sufficient strength and rigidity can be ensured, lightening of the weight is intended by making walls thin as a whole, and early activation of a catalyst is easy. The exhaust manifold is one for a multi-cylinder internal combustion engine having two groups of cylinders selected so that exhaust strokes are not successive. The exhaust manifold includes two exhaust pipe sections containing exhaust pipes communicating with the cylinders of one of the groups respectively, confluence sections where the exhaust pipes in each of the exhaust pipe sections join respectively, and a gathering section where the confluence sections join. Further, the exhaust manifold is constructed by an obverse half body, a partition body and a reverse half body made of plate metals and laid face to face with each other, the exhaust pipe sections and the confluence sections are formed by the partition body and one of the obverse and reverse half bodies, and the gathering section is formed by the obverse half body and the reverse half body.

REFERENCES:
patent: 4537027 (1985-08-01), Harwood et al.
patent: 4689952 (1987-09-01), Arthur et al.
patent: 4850189 (1989-07-01), Arthur et al.
patent: 5682741 (1997-11-01), Augustin et al.
patent: 5743011 (1998-04-01), Dickerson et al.

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