Fuel supply line

Claim 1

A one piece fuel supply line in combination with a plurality of rigid fuel injection valve receptacles for a fuel injection system for internal combustion engines, said fuel supply line including an inlet at one end, a continuous flow through cross-section along its length and a pressure regulator valve at one of the ends, said plurality of rigid fuel injection valve receptacles are integral with said fuel supply line and spaced in an axial direction along said fuel supply line, each receptacle having a plurality of annular inner and outer surface steps of different cross-sectional dimension to form a stepped receiving bore (10) of predetermined shape offset with respect to said flow through cross-section and embodied such that each of said receptacles is insertable tightly into one each of a plurality of bearing bores (36) in an air intake tube (23), said stepped bearing bore of each receptacle being open on each end and arranged to receive one each of a plurality of injection valves (9), each of said fuel injection valves are provided with fuel openings in the circumference thereof transverse to the axis of the fuel injection valve, an opening (32) from said flow through cross-section to each of said plurality of rigid fuel injection valve receptacles, said opening extends in a direction transverse to the axis of said fuel supply line and in a direction transverse to the axis of the receptacle, each of said fuel injection valves have a mouthpiece (11) and remote from the mouthpiece a connection end (12) which extends from the receptacle and is engaged by electrical plug contact (16), said stepped receiving bore of each of said receptacles opens toward the mouthpiece and toward the connection end of each fuel injection valve with each annular inner step of each receptacle having a greater diameter toward said connection end of said stepped bore, said opening (32) from said flow through cross-section to said stepped bore arranged to permit fuel flow from the supply line directly to one side of said fuel injection valve perpendicular to the axis of the fuel injection valve, each of said fuel injection valves are stepped to conform with each step of said stepped bore of each rigid fuel injection receptacle, each fuel injection valve further including a shoulder portion which is received in a holding step in said stepped bore, means mounted on said fuel injection valve to secure said fuel injection valve in said receptacle, and means on said fuel supply line for securing said fuel supply line onto said engine.