Catalytic converter
AssigneeAisin Takaoka Co., Ltd.
InventorsAkira Sato, Satoru Isaji
Life of this patent
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Abstract
An exhaust gas receiver 21 is provided between an expanded passage portion 132 of an upstream connection member 13 and a catalyst end surface 111. The exhaust gas receiver 21 extends along the entire circumference of a catalyst accommodation case 12. The exhaust gas receiver 21 extends from an upstream opening end portion 121 of the catalyst accommodation case 12 toward an inner part of the passage of the expanded passage portion 132 such that the exhaust gas receiver 21 separates from the expanded passage portion 132, and a space 211 is defined between the exhaust gas receiver 21 and the catalyst end surface 111. Flows of bypass exhaust gas hitting against the catalyst end surface 111 and bouncing off the catalyst end surface 111 hit against and are received by the exhaust gas receiver 21.
Claims7
An exhaust arrangement, containing a catalytic converter and a turbocharger;
- comprising:
- a catalyst accommodation case configured to accommodate a catalyst;
- and
- an upstream connection member having an upstream passage portion of which a passage area is smaller than an area of an end surface of the catalyst and which leads an exhaust gas flowing out from the turbocharger to the catalyst, and an expanded passage portion located downstream of the upstream passage portion and connected to an upstream opening end portion of the catalyst accommodation case to expand from the upstream passage portion;
- wherein
- the turbocharger includes a bypass passage out from which a bypass exhaust gas flows;
- and;
- the catalyst end surface is provided at a position that a bypass exhaust gas flowing out from a passage outlet of the bypass passage flows along a flow path inclined toward one side with respect to a line perpendicular to the catalyst end surface and hits against the catalyst end surface;
- and
- the exhaust arrangement further comprises an exhaust gas receiver provided between the expanded passage portion and the catalyst end surface at least in a counter-inclination-side portion opposite the side toward which the flow path is inclined, and configured to receive a flow of the bypass exhaust gas bouncing off the catalyst end surface;
- and
- the exhaust gas receiver extends from the upstream opening end portion of the catalyst accommodation case toward an inner part of the expanded passage portion, being separated from the expanded passage portion and a space is defined between the exhaust gas receiver and the catalyst end surface.
Dependencies are inferred from the claim text.