Annular catalytic converter
AssigneeVitesco Technologies GmbH
InventorsRolf Brück, Peter Hirth, Sven Schepers, David Odenthal, Marat Karibayev, Ferdi Kurth
Life of this patent
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Abstract
An annular catalytic converter, having a first, tubular flow path, having a diverting region and having a second, annular flow path, wherein the tubular flow path is formed by an inner pipe, wherein the annular flow path is formed between the inner pipe and an outer pipe surrounding the inner pipe, and the diverting region is of pot-shaped form for the purposes of diverting the exhaust-gas flow from the tubular flow path into the annular flow path, wherein the inner pipe and/or the outer pipe has a conical cross section that widens or narrows along the flow direction of the exhaust gas.
Claims12
An annular catalytic converter, comprising:
- an inner pipe;
- an outer pipe, the inner pipe and the outer pipe are the same length;
- a tubular flow path formed by the inner pipe;
- an annular flow path formed between the inner pipe and the outer pipe, and surrounding the inner pipe;
- and
- a diverting region for diverting exhaust-gas flow from the tubular flow path into the annular flow path, the diverting region having pot-shaped form;
- a first cross-sectional area at the gas inlet side of the tubular flow path;
- a second cross-sectional area at the gas outlet side of the annular flow path;
- a third cross-sectional area at the gas outlet side of the tubular flow path;
- and
- a fourth cross-sectional area at the gas inlet side of the annular flow path;
- wherein each of the inner pipe and the outer pipe are conically-shaped, which widen or narrow along the flow direction of the exhaust gas, such that the tubular flow path widens conically from its gas inlet side to its gas outlet side by a first angle, and the annular flow path narrows conically from its gas inlet side to its gas outlet side by a second angle.
Dependencies are inferred from the claim text.