Exhaust gas recirculation structure
AssigneeIsuzu Motors Limited
InventorRyoma Takara
Life of this patent
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Abstract
An exhaust gas recirculation structure includes an EGR cooler and an EGR duct, and the EGR duct includes an inflow portion into which the exhaust gas flowing out from the EGR cooler flows, a flow path, and an outflow portion from which the exhaust gas flows out. The flow path is provided such that the height on the side of the inflow portion is lower than the height on the side of the outflow portion, and has a region in which the distance between the center line of a flow path cross section of the flow path and a line along the lowest end in the height direction gradually increases from the outflow portion side toward the inflow portion side.
Claims6
An exhaust gas recirculation structure, comprising:
- an EGR cooler provided in an EGR passage that causes exhaust gas to be recirculated from an exhaust passage of an engine of the vehicle to an intake passage;
- and
- an EGR duct that is provided in the engine and passes the exhaust gas flowing out from the EGR cooler toward the intake passage, wherein
- the EGR duct includes:
- an inflow portion into which the exhaust gas flowing out from the EGR cooler flows;
- a flow path through which the exhaust gas flowing in from the inflow portion flows;
- and
- an outflow portion from which the exhaust gas flowing through the flow path flows out, and
- the flow path is provided such that a height thereof on the flow path side becomes lower than a height thereof on the outflow portion side, and has a region in which a distance between a center line of a flow path cross section of the flow path and a line along a lowest end in the height direction of the flow path cross section becomes gradually larger from the outflow portion side toward the inflow portion side.
Dependencies are inferred from the claim text.