Secondary air control valve
AssigneesDenso Corporation, DENSO International America, Inc.
InventorsShogo KANZAKI, Naoki Naito, Paolo Guidi, Benjamin Palmer
Life of this patent
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Abstract
A secondary air control valve connected to an exhaust system includes a passage forming member and a valve mechanism. The passage forming member includes a container unit and a plurality of fins. The container unit that defines therein an exit cavity and an exit passage. The plurality of fins projects from the container unit into the exit cavity such that the plurality of fins collides with counter-flow exhaust gas that counter-flows in a direction from the exit passage to the exit cavity through the first opening. The plurality of fins divides the exit cavity into a plurality of cavities, in which counter-flow exhaust gas forms a plurality of vortex flows.
Claims11
A secondary air control valve connected to an exhaust system, which allows exhaust gas to flow therethrough, wherein the secondary air control valve supplies secondary air to the exhaust system, the secondary air control valve comprising:
- a passage forming member that defines a passage, through which secondary air is supplied to the exhaust system;
- and
- a valve mechanism provided in the passage, wherein:
- the passage forming member includes:
- a container unit that defines therein:
- an exit cavity provided between the valve mechanism and the exhaust system;
- and
- an exit passage having a first opening communicated with the exit cavity and having a second opening communicated with the exhaust system;
- and
- a plurality of fins that projects from the container unit into the exit cavity such that the plurality of fins collides with counter-flow exhaust gas that counter-flows in a direction from the exit passage to the exit cavity through the first opening, the plurality of fins dividing the exit cavity into a plurality of cavities, in which counter-flow exhaust gas forms a plurality of vortex flows.
Dependencies are inferred from the claim text.