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US 2013/0075192 A1Published application
Muffler for small-sized vehicle
AssigneeHonda Motor Co., Ltd.
InventorsYoshitaka HAYAMA, Kenichiro NAKAMURA
Life of this patent
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Abstract
The inside of a muffler main body formed from an outer plate into the shape of a cylinder is divided into an upstream-side expansion chamber and downstream-side expansion chambers by partition walls. A catalyst is contained in the upstream-side expansion chamber having a larger volume, and a cylinder-shaped reinforcement member is attached to an inner surface of the outer plate of the upstream-side expansion chamber.
Claims21
A muffler for an internal combustion engine, said muffler comprising:
- a muffler main body, said muffler main body comprising an outer plate configured in a shape of a cylinder, wherein an inside of the muffler main body comprises a plurality of expansion chambers in communication with each other, said expansion chambers being separated by partition walls attached to an inner peripheral surface of the outer plate;
- a catalyst disposed in an upstream-side expansion chamber, said upstream-side expansion chamber being configured to be connected to a downstream side of an exhaust pipe;
- an exhaust gas discharging port disposed at a downstream end of a downstream-side expansion chamber;
- and
- a cylinder-shaped reinforcement member attached to the inner peripheral surface of the outer plate, said cylinder-shaped reinforcement member being independent of the partition walls, and disposed inside of the upstream-side expansion chamber.
2 more elements
A muffler for an internal combustion engine, said muffler comprising:
- main body means for forming a main body of the muffler, said main body means comprising an outer portion configured in a shape of a cylinder, wherein an inside of the main body means comprises a plurality of expansion chambers in communication with each other, said expansion chambers being separated by partition means for partitioning the inside of the main body means;
- catalyst means for catalyzing exhaust gases, said catalyst means being disposed in an upstream-side expansion chamber, said upstream-side expansion chamber being connected to a downstream side of an exhaust pipe;
- discharging means for discharging exhaust gases, said discharging means disposed at a downstream end of a downstream-side expansion chamber;
- and
- reinforcement means attached to an inner peripheral surface of the outer portion, said reinforcement means being independent of the partition means, and disposed inside of the upstream-side expansion chamber.
2 more elements
Dependencies are inferred from the claim text.