Exhaust pipe
AssigneeFutaba Industrial Co., Ltd.
InventorsShunsuke Sameshima, Kosuke Onoda, Masayuki Sudo
Life of this patent
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Abstract
An exhaust pipe includes a tubular portion and a space forming portion. The tubular portion forms an exhaust flow path in an exhaust system of an internal combustion engine. The tubular portion has a tubular shape. The space forming portion is provided along at least one of an inner surface and an outer surface of the tubular portion and forms at least one branch space between the space forming portion and the tubular portion. The at least one branch space communicates with the exhaust flow path and has a function as a side-branch muffler. The at least one branch space includes a space with a length that is one third or more of an entire length of the exhaust system.
Claims9
An exhaust pipe comprising:
- a tubular portion forming an exhaust flow path in an exhaust system of an internal combustion engine;
- and
- a space forming portion provided along at least one of an inner surface and an outer surface of the tubular portion and forming at least one branch space between the space forming portion and the tubular portion, the at least one branch space communicating with the exhaust flow path and having a function as a side-branch muffler,
- wherein the at least one branch space comprises a space with a length that is one fifth or more of an entire length of the exhaust system.
Dependencies are inferred from the claim text.