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Effect of Exhaust System Backpressure on HC, CO, and NO(sub x) Emissions.
| 题名： | Effect of Exhaust System Backpressure on HC, CO, and NO(sub x) Emissions. |
| 关键词： | Exhaust system, Emissions assessments, Light duty truck engines, Light-duty passenger cars, Federal Test Procedure(FTP), Environmental Protection Agency (EPA) |
| 摘要： | The exhaust systems of three light-duty passenger cars and one light duty truck were altered and the vehicles were tested for exhaust emissions using the Federal Test Procedure. To determine the effect of the alterations on backpressure, exhaust system pressure was measured for four of the five tests run on each vehicle. When the catalyst was replaced by a straight, unrestricted pipe, two of the four vehicles exceeded the Federal Test Procedurefor NO(sub x) emissions, one exceeded the standard for CO, and all vehicles exceeded the standard, for HC. When dual exhaust systems were installed in place of the single exhaust systems all vehicles failed NO(sub x). |
| 报告类型： | 科技报告 |
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