1967-02-01

Development of the Exhaust Emission Control Device for Toyota Vehicles 670687

This paper deals with some fundamental research on control of exhaust emissions from automotive engines, with particular reference to the Toyota manifold air injection system developed for the 1968 Toyota vehicle model.
The influence of engine variables on exhaust emissions has been investigated under various operating conditions, such as idling, deceleration, and road load. Although some design aids involving engine modification for emission control were devised, the limited time schedule afforded for the necessary development work led to the adoption of a manifold air injection system for the 1968 Toyota model. Its characteristic features and some technical problems experienced during development are described in this paper.

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