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US 2024/0218822 A1Published application
Vehicle exhaust system having an integral hood
AssigneesTenneco Automotive Operating Company Inc., Tenneco Inc.
InventorsSTEPHEN THOMAS, GABRIEL OSTROMECKI, ASELA ANURUDDHIKA BENTHARA-WADUMESTHRIGE, FREDERICK M. BAUMGARTNER, DAVID ALAN STEPHENS, MARCEL WOMANN
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Abstract
A vehicle exhaust system having a first pipe, a second pipe, and an integral hood. The first pipe extending between a first end and a second end. The second pipe extending between a third end and a fourth end. At least a portion of the first pipe being positioned within the second pipe such that the second end is provided downstream of the third end. The integral hood is formed between the second end and the third end.
Claims20
A vehicle exhaust system comprising:
- a first pipe having a first wall defining a first fluid passage, the first pipe extending between a first end and a second end along a first centerline, the first pipe having a first cross-sectional area;
- a second pipe having a second wall defining a second fluid passage, the second pipe extending between a third end and a fourth end along a second centerline, and the second pipe having:
- a second cross-sectional area with a first area at the third end and a second area, smaller than the first area, downstream the first area;
- and
- a first step defining a transition between the first area and the second area;
- and
- an integral hood formed between the second end and the third end, the integral hood defined by at least one radial space between the first pipe and the second pipe, with respect to the second centerline;
- wherein at least a portion of the first pipe is positioned within the second pipe such that the third end is provided axially forward of the second end, with respect to the first centerline, and the second end confronts and is spaced from a respective portion of the first step to define a gap therebetween that is fluidly coupled to the integral hood.
5 more elements
A vehicle exhaust system comprising:
- a first pipe having a first wall defining a first fluid passage, the first pipe extending between a first end and a second end along a first centerline, the first pipe having a first cross-sectional area;
- a second pipe having a second wall defining a second fluid passage, the second pipe extending between a third end and a fourth end along a second centerline, and the second pipe having:
- a second cross-sectional area with a first area at the third end and a second area, smaller than the first area, downstream the first area;
- and
- a first step defining a transition between the first area and the second area;
- and
- an integral hood formed between the second end and the third end, the integral hood defined by at least one radial space between the first pipe and the second pipe, with respect to the second centerline, with an inlet to the integral hood being formed along a portion of the first pipe confronting the integral hood, the inlet and the integral hood defining a secondary emissions passage of the vehicle exhaust system;
- wherein at least a portion of the first pipe is positioned within the second pipe such that the third end is provided axially forward of the second end, with respect to the first centerline, and the second end is spaced axially aft of an apex of the first step.
5 more elements
A vehicle exhaust system comprising:
- a first pipe having a first wall defining a first fluid passage, the first pipe extending between a first end and a second end along a first centerline, the first pipe having at least one first dimple formed along the first wall and extending radially outward, with respect to the first centerline, from the first wall;
- a second pipe having a second wall defining a second fluid passage, the second pipe extending between a third end and a fourth end along a second centerline, the second pipe having at least one second dimple formed along the second wall and extending radially inward, with respect to the second centerline, from the second wall;
- and
- an integral hood formed between the second end and the third end, the integral hood defined by at least one radial space between the first pipe and the second pipe, with respect to the second centerline;
- wherein at least a portion of the first pipe is positioned within the second pipe such that the at least one first dimple is provided axially aft of the at least one second dimple, with respect to the second centerline.
2 more elements
Dependencies are inferred from the claim text.