Carburettor fuel flow regulator - has control link between pressure detector and fuel inlet valve to close latter when pressure in mixing chamber falls below set limit

摘要

The flow regulator comprises a pressure detector connected to the fuel-air mixing chamber of the carburettor. This detector is capable of detecting an absolute pressure lower than a predetermined limit. A control link between the pressure detector and the fuel inlet valve to the mixing chamber is provided. The control link is able to close the valve when it is detected that the absolute pressure in the mixing chamber falls below the predetermined limit, such as when the engine is decelerating. In the case of a gaseous fuel carburettor, the fuel inlet valve may be located in the main gas inlet line, whereas in the case of a liq. fuel carburettor the fuel inlet valve may be located in the idle fuel line.