LOW PRESSURE INJECTION INJECTOR

摘要

PURPOSE: A lower pressure injector is provided without a high pressure fuel line by applying low pressure injection to an injection engine and a gasoline direct injection engine. CONSTITUTION: A lower pressure injector comprises a pressure balancing valve. The pressure balancing valve(10) is connected to a needle which slides outwardly during the opening and closing of the valve. A draw route which sucks some fuel from a returning route and discharges the fuel to the outside is formed. The pressure balancing valve is placed at the chamber space extended from a hollow hole of a holder that the needled is inserted. The return fuel from the draw route is supplied to another return route formed through the chamber space.