EXHAUST CONDUIT
First Claim
1. Exhaust conduit, which an exhaust line of an internal combustion engine comprises, and which includes, on the one hand, an external tube and an internal tube positioned inside the external tube so as to delimit, between these two tubes, a peripheral volume inside which is implanted a material for heat insulation of this conduit, on the other hand and at the level of a first end of this exhaust conduit, first means for connecting this exhaust conduit to a first exhaust element, in particular an exhaust-gas collector and, in addition and at the level of a second end of this exhaust conduit, second means for connecting this conduit to a second exhaust element, which said exhaust line comprises, characterized in that it includes, proximate its second end, means for preventing a penetration of the exhaust gases, circulating inside the internal tube, into the peripheral volume delimited by this internal tube and the external tube.
1 Assignment
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Accused Products
Abstract
The invention concerns an exhaust conduit (1) comprising an outer tube (3) and an inner tube (2) positioned inside the outer tube (3) so as to delimit, between those two tubes (2, 3), a peripheral volume (4) inside which is implanted a material (5) for thermal insulation of said conduit (1) and at one first end (6) of said conduit (1), first means (8) for connection to a first exhaust element and at a second end (7) of said conduit (1), second means (9) for connecting said pipe (1) to a second exhaust element comprised in said exhaust line. Said conduit (1) is characterized in that it comprises, proximate its second end (7), means (10) for preventing exhaust gases circulating inside the inner tube (2) from penetrating into the peripheral volume (4) delimited by said inner tube (2) and the outer tube (3).
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Citations
12 Claims
- 1. Exhaust conduit, which an exhaust line of an internal combustion engine comprises, and which includes, on the one hand, an external tube and an internal tube positioned inside the external tube so as to delimit, between these two tubes, a peripheral volume inside which is implanted a material for heat insulation of this conduit, on the other hand and at the level of a first end of this exhaust conduit, first means for connecting this exhaust conduit to a first exhaust element, in particular an exhaust-gas collector and, in addition and at the level of a second end of this exhaust conduit, second means for connecting this conduit to a second exhaust element, which said exhaust line comprises, characterized in that it includes, proximate its second end, means for preventing a penetration of the exhaust gases, circulating inside the internal tube, into the peripheral volume delimited by this internal tube and the external tube.
Specification