Patent ID: 6729313
Filing Date: 2004-05-04
Classification: B60K,F02M,F17C,Y02T

Abstract:
A tank for a system of injection supply of LPG for internal-combustion engines, comprising a hollow structure having a top opening closed by a service flange that carries means for the hydraulic and electrical connections of the tank to the fuel-supply system, said means including:a first hole for connection with a pipe for delivery of LPG to the injectors of the fuel supply system; a valve assembly including a flow-limiting valve and a shutoff solenoid valve, associated with said first connection hole; a second hole for connection with the pipe for flowback into the tank of the excess LPG fed to the injectors; a return valve associated with said second connection hole; a third hole for filling said tank; a filling valve associated with said third hole for controlling filling of the tank; a safety valve for preventing the pressure inside the tank from exceeding a pre-set threshold value; and an electrical connection device, wherein the valve assembly, the return valve and the filling valve each have an annular flange secured by screws to an inner surface of said service flange and each have an annular recess with an annular seal therein surrounding said associated holes respectively and engaging said inner surface.