Exhaust manifold
AssigneeAisin Takaoka Co., Ltd.
InventorsMasami Okamoto, Yoshifumi Sogo, Eiji Nawata, Naofumi Masuda, Wataru Ozawa
Life of this patent
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Abstract
An exhaust manifold in which a plurality of branch tubes at an inlet side are connected to a collecting tube at an outlet side, and in which the fluid flows from the branch tubes to the collecting tube, wherein a volumetric chamber is provided between at least a pair of the branch tubes in communication with the branch tubes, with the volumetric chamber being gradually increased in its cross-sectional area in a fluid flowing direction. An exhaust manifold formed of upper and lower members comprises a branch tube having a bend. The upper lower members are interconnected by joining flanges having a broader width in the vicinity of the bend than other joining flange portions.
Claims14
An exhaust manifold having an inlet side and an outlet side in which a plurality of branch tubes disposed at the inlet side are connected to a collecting tube disposed at the outlet side and in which fluid flows in a flowing direction from said branch tubes to said collecting tube,
- wherein a volumetric chamber is provided between at least a pair of said branch tubes and is in communication with said pair of branch tubes, said volumetric chamber having a cross-sectional area that generally increases as viewed in a plane normal to the flowing direction of said fluid.
An exhaust manifold having an inlet side and an outlet side, said exhaust manifold comprising at least an upper member and a lower member, in which a plurality of branch tubes disposed at the inlet side are connected to a collecting tube disposed at the outlet side, at least one of the branch tubes having a bend, said upper member and the lower member being interconnected along a joining flange which extends along a straight portion of the at least one branch tube and along the bend, the width of the portion of the joining flange extending along the straight portion of the at least one branch tube being substantially constant,
- a portion of the joining flange extending along the bend having a broader width than remaining portions of the joining flange.
Dependencies are inferred from the claim text.