1982-02-01

The Electric Choke for Improved Cold Start Control 820390

ABSTRACT

During the warm-up period of a carbureted spark ignition engine, a choke control is required to provide the rich fuel-air mixture necessary to achieve combustion. Over the past decade, a new type of choke control, which uses electrically generated heat, has been widely applied to this function. This control uses a PTC ceramic heater to rotate a bimetal coil with a level of control not achievable in previous choking systems. The purpose of this paper is to describe the operation and construction of this electric choke control as it is presently applied to production vehicles.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X