1963-01-01

The Control of Crankcase Hydrocarbon Losses 630425

The effect of crankcase emissions and crankcase emission control devices from an air pollution standpoint is discussed in this paper. Blowby flow rates for different engine sizes are presented. The various types of devices which have been approved by the Calif. Motor Vehicle Pollution Control Board are described and their strength and weaknesses are discussed. Finally, some of the design and operating problems of systems currently being used are described.

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