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Exhaust Emission Control for Used Cars
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English
Abstract
An exhaust emission control system has been developed for used cars of the 1955-1967 model years. Average exhaust emissions were reduced on 194 cars by 53% HC, 33% CO, and 31% NOx. The package consists of increased idle speed, leaner idle mixture, and retarded ignition timing. A thermostatic vacuum switch provides engine cooling protection with the retarded ignition. For maximum effectiveness of the control, the engine must be in good running condition.
Authors
Citation
Niepoth, G., Ransom, G., and Currie, J., "Exhaust Emission Control for Used Cars," SAE Technical Paper 710069, 1971, https://doi.org/10.4271/710069.Also In
References
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