EXHAUST SYSTEM FOR SADDLE-RIDE TYPE VEHICLE

To easily disposed an exhaust valve and a catalyst in a simple manner withou t the need of any special place. A muffler of a generally triangular shape in side view is provided and the interior thereof is partitioned into first to third expansion chambers. A manifold pipe is connected to the second...

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Bibliographische Detailangaben
Hauptverfasser: ISHIKAWA, YUZURU, IMADA, MITSUNOBU
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:To easily disposed an exhaust valve and a catalyst in a simple manner withou t the need of any special place. A muffler of a generally triangular shape in side view is provided and the interior thereof is partitioned into first to third expansion chambers. A manifold pipe is connected to the second expansion chamber as a middle chamber sideways from a lower portion of the same chamber and is accommodated therein so as to face upward. A catalyst is accommodated in the interior of the manifold pipe and exhaust gas flowing out from an open end of the manifold pipe is expanded into the second expansion chamber. A short-circuiting aperture is formed in a second separator and is opened and closed with an exhaust valve installed within th e adjacent third expansion chamber. The exhaust valve is normally closed type and is urged in its closing direction by spring means. When the exhaust pressure becomes a predetermined magnitude, the exhaust valve opens automatically, allowing the exhaust gas to flow out into the third expansion chamber through the short-circuiting aperture, thereby controlling the exhau st pressure.