| 摘要 |
<p>PURPOSE:To provide a heat insulative exhaust pipe in which surface temperature can be suppressed, an interruption plate is dispensed with for reduction in size, freedom in respect to arrangement space is sufficient, and a sectional area can be optionally set to some extent. CONSTITUTION:A heat insulative exhaust pipe 3 is composed of an inner pipe 10 which is connected to an engine, forming an air passage E around an outlet end of an exhaust pipe 2, and extending over the exhaust pipe 2, a heat insulative layer 14 made up of a stainless steel inner layer 12, an inorganic coating layer 13, and a foaming body, and an outer layer 15 made of fiber reinforced resin. An outer pipe 11 forms an air passage F around the inner pipe 10.</p> |
