An exhaust system for an off-road vehicle including an outlet port configured to release exhaust gas and an outlet stack disposed about the outlet port, in which at least a portion of the outlet stack is radially spaced from the outlet port to form a gap between the outlet stack and the outlet port.
An exhaust system for an off-road vehicle including an outlet port configured to release exhaust gas and an outlet stack disposed about the outlet port, in which at least a portion of the outlet stack is radially spaced from the outlet port to form a gap between the outlet stack and the outlet port. The outlet stack is configured to direct a flow of exhaust gas from the outlet port toward a distal end of the outlet stack. The exhaust system further includes an exhaust shield in close proximity or coupled to the outlet stack comprising at least one opening and an electronic control unit (ECU) disposed within the exhaust shield. The gap is configured to establish an airflow path from the at least one opening to a region of the outlet stack downstream from the outlet port, and the ECU is positioned within the airflow path between the at least one opening and the gap to facilitate cooling of the ECU.
대표청구항▼
1. An exhaust system for an off-road vehicle comprising: a housing comprising a body and an outlet port extending upwardly from the body, wherein the body extends radially outward beyond the outlet port, and the outlet port is configured to release exhaust gas;an exhaust shield disposed about the bo
1. An exhaust system for an off-road vehicle comprising: a housing comprising a body and an outlet port extending upwardly from the body, wherein the body extends radially outward beyond the outlet port, and the outlet port is configured to release exhaust gas;an exhaust shield disposed about the body, wherein the exhaust shield comprises at least one opening configured to enable cooling air to flow from outside the off-road vehicle directly into the exhaust system;an electronic control unit (ECU) disposed within the exhaust shield; andan outlet stack disposed about the outlet port such that at least a portion of the outlet stack is radially spaced from the outlet port to form a gap between the outlet stack and the outlet port, wherein the outlet stack is configured to: receive the exhaust gas from the outlet port to establish a low pressure region in the outlet stack that aspirates the cooling air through the at least one opening, over the ECU, and into the outlet stack; anddirect flow of the exhaust gas and the cooling air toward a distal end of the outlet stack. 2. The exhaust system of claim 1, comprising a sensor configured to monitor a level of at least one component of the exhaust gas, wherein the sensor is positioned upstream of the outlet port. 3. The exhaust system of claim 2, wherein the ECU is communicatively coupled to the sensor. 4. The exhaust system of claim 1, comprising an after-treatment system (ATS) configured to reduce a level of at least one component of the exhaust gas, wherein the ATS is positioned upstream of the outlet port. 5. The exhaust system of claim 1, wherein the outlet stack and the outlet port are substantially axially aligned with one another. 6. The exhaust system of claim 1, wherein the outlet stack comprises a nozzle configured to facilitate adjustment of a velocity of the cooling air through the at least one opening, over the ECU, and into the outlet stack. 7. The exhaust system of claim 1, wherein the outlet stack is configured to receive the exhaust gas from the outlet port such that the cooling air carries debris from around the housing through the gap, through the outlet stack, and to a region outside the off-road vehicle. 8. The exhaust system of claim 1, wherein the outlet stack comprises a sloped base, wherein the sloped base is configured to direct the cooling air through the gap. 9. An exhaust system for an off-road vehicle comprising: an outlet port configured to release exhaust gas;an outlet stack disposed about the outlet port, wherein at least a portion of the outlet stack is radially spaced from the outlet port to form a gap between the outlet stack and the outlet port, and the outlet stack is configured to receive the exhaust gas from the outlet port;wherein the outlet stack is configured to direct the exhaust gas toward a distal end to establish a low pressure region that draws cooling air directly from outside the off-road vehicle through one or more openings in the exhaust system, over an electronic control unit (ECU), and through the gap into the outlet stack. 10. The exhaust system of claim 9, comprising a sensor configured to monitor a level of at least one component of the exhaust gas, wherein the sensor is positioned upstream of the outlet port. 11. The exhaust system of claim 10, wherein the ECU is communicatively coupled to the sensor. 12. The exhaust system of claim 9, wherein the outlet stack and the outlet port are substantially axially aligned with one another. 13. The exhaust system of claim 9, wherein the outlet stack comprises a nozzle configured to facilitate adjustment of a velocity of the cooling air through the at least one opening, over the ECU, and into the outlet stack. 14. The exhaust system of claim 9, wherein the gap is configured to enable the low pressure region to draw the cooling air into the outlet stack such that the cooling air carries debris from around outlet port, through the gap, through the outlet stack, and out of the exhaust system.
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