A FLOW DISTRIBUTION PLATE AND AN ENGINE EXHAUST GAS AFTERTREATMENT DEVICE COMPRISING SUCH A PLATE
First Claim
1. A flow distribution plate associated with an engine exhaust gas aftertreatment device, wherein the plate is perforated and is adapted to be arranged at an inlet to an exhaust gas purifying unit to improve the flow distribution of exhaust gas into the purifying unit, wherein the flow distribution plate is curved in relation to the inlet, such that a more uniform flow velocity distribution is achieved over the inlet, wherein the curvature of the flow distribution plate is asymmetric and formed depending on the direction of the inflow of exhaust gas in relation to the inlet, wherein the flow distribution plate is curved such that the incoming exhaust gas with the highest flow velocity hits a part of the flow distribution plate, which is furthest away from the inlet to the purifying unit.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a flow distribution plate associated with an engine exhaust gas aftertreatment device, wherein the plate is perforated and is adapted to be arranged at an inlet to an exhaust gas purifying unit to improve the flow distribution of exhaust gas into the purifying unit. The flow distribution plate is curved in relation to the inlet, such that a more uniform flow velocity distribution is achieved over the inlet. The invention also relates to an engine exhaust gas aftertreatment device and a vehicle comprising such an engine exhaust gas aftertreatment device.
2 Citations
15 Claims
- 1. A flow distribution plate associated with an engine exhaust gas aftertreatment device, wherein the plate is perforated and is adapted to be arranged at an inlet to an exhaust gas purifying unit to improve the flow distribution of exhaust gas into the purifying unit, wherein the flow distribution plate is curved in relation to the inlet, such that a more uniform flow velocity distribution is achieved over the inlet, wherein the curvature of the flow distribution plate is asymmetric and formed depending on the direction of the inflow of exhaust gas in relation to the inlet, wherein the flow distribution plate is curved such that the incoming exhaust gas with the highest flow velocity hits a part of the flow distribution plate, which is furthest away from the inlet to the purifying unit.
- 5. An engine exhaust gas aftertreatment device, comprising at least one exhaust gas purifying unit with an inlet, wherein a flow distribution plate is arranged at the inlet of the purifying unit, wherein said flow distribution plate wherein the plate is perforated and is adapted to be arranged at an inlet to an exhaust gas purifying unit to improve the flow distribution of exhaust gas into the purifying unit, wherein the flow distribution plate is curved in relation to the inlet, such that a more uniform flow velocity distribution is achieved over the inlet, wherein the curvature of the flow distribution plate is asymmetric and formed depending on the direction of the inflow of exhaust gas in relation to the inlet, wherein the flow distribution plate is curved such that the incoming exhaust gas with the highest flow velocity hits a part of the flow distribution plate, which is furthest away from the inlet to the purifying unit.
- 10. A vehicle comprising an engine exhaust gas aftertreatment device comprising at least one exhaust gas purifying unit with an inlet, wherein a flow distribution plate is arranged at the inlet of the purifying unit, wherein said flow distribution plate wherein the plate is perforated and is adapted to be arranged at an inlet to an exhaust gas purifying unit to improve the flow distribution of exhaust gas into the purifying unit, wherein the flow distribution plate is curved in relation to the inlet, such that a more uniform flow velocity distribution is achieved over the inlet, wherein the curvature of the flow distribution plate is asymmetric and formed depending on the direction of the inflow of exhaust gas in relation to the inlet, wherein the flow distribution plate is curved such that the incoming exhaust qas with the highest flow velocity hits a part of the flow distribution plate, which is furthest away from the inlet to the purifying unit.
Specification