PRESSURE REGULATOR FOR INJECTION SYSTEMS OF CONTROLLED IGNITION INTERNAL COMBUSTION ENGINES

摘要

The pressure regulator is for fuel injection system of a spark ignition engine. The regulator is regulated for pressure at which fuel is delivered to the fuel injectors, this pressure being constantly referenced to a predetermined value for the purpose of maintaining the correct air/fuel mix-ture-ratio for all conditions of use of the engines. The regulator comprises an arrangement of various mechanical components which divide the flow of fuel delivered by a supply pump into two parts. One part of this flow is supplied to the injectors which take up the quantity required by the operating conditions of the engine. The remaining part is returned to the motor vehicle tank.