Exhaust emission control device
AssigneeHino Motors, Ltd.
InventorMinoru Kowada
Life of this patent
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Abstract
In an exhaust emission control device, a casing 7, which accommodates particulate filter 5 as a post-treatment device through which exhaust gas 3 is passed for cleanup, has an outlet connected with a downstream exhaust passage 12 extending substantially perpendicular to an axis of the casing 7. In order to realize compactness in size of the whole structure without increase of exhaust resistance, an outer chamber 11 encases the casing 7 in a required range to provide required spacing for an open end 7a and an outer periphery 7b of the outlet of the casing 7. The outlet chamber 11 intervenes between the outlet of the casing 7 and the downstream exhaust passage 12.
Claims2
An exhaust emission control device wherein a casing accommodating a post-treatment device through which in turn exhaust gas is passed for cleanup is incorporated in an exhaust passage, the casing having an outlet connected with a downstream exhaust passage extending in a direction different from an axis of said casing, comprising an outlet chamber encasing the outlet of the casing in a required range to provide required spacing to an open end and outer periphery of the outlet of the casing, said outlet chamber intervening between the outlet of the casing and the downstream exhaust passage.
Dependencies are inferred from the claim text.