Answer to Question #48192 in Engineering for Agam

Question #48192
Explain the difference between a Choke Valve and a Throttle Valve.
Expert's answer
A choke valve is a type of valve designed to create choked flow in afluid. Over a wide range of valve settings the flow through the valve can be
understood by ignoring the viscosity of the fluid passing through the valve;
the rate of flow is determined only by the ambient pressure on the upstream
side of the valve.
the throttle valve is controlled with a throttle pedal or lever via adirect mechanical linkage. In vehicles with electronic throttle control, the
manual throttle control sends a signal to the Engine Control Unit (ECU), which
then directly controls the position of the throttle valve. This means that the
operator does not have direct control over the throttle valve; the ECU can
finely control the valve in order to reduce emissions or maximize performance.

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