Automotive Choke Thermostat

Automotive choke thermostats are components of the engine fuel system in non-aircraft vehicles. They are part of the engine accessories supply group.

The choke thermostat is responsible for regulating the air-fuel mixture during engine startup. It helps to enrich the fuel mixture by restricting the airflow into the carburetor, ensuring a smooth and efficient cold start. As the engine warms up, the choke thermostat gradually opens, allowing more air into the carburetor and adjusting the fuel mixture to normal operating conditions.

The choke thermostat is typically located on the carburetor and is connected to the choke plate. It consists of a bimetallic coil that expands and contracts with temperature changes. This coil is connected to the choke plate and controls its position based on the engine's temperature.

By controlling the choke plate, the choke thermostat ensures that the engine receives the correct air-fuel mixture for optimal performance during startup and warm-up. It helps prevent stalling, rough idling, and other issues that can occur when the engine is cold.

Overall, the automotive choke thermostat plays a crucial role in the fuel system of non-aircraft engines, ensuring smooth and efficient cold starts and proper fuel mixture during warm-up.