Fuel injection apparatus having cylinder screw for mounting fuel

Details Fuel injection apparatus having cylinder screw for mounting fuel Fuel injection apparatus having cylinder screw for mounting fuel

1997-07-17

1999-08-31

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123468, F02M 3704

Patent

active

059439955

ABSTRACT:
A cylinder screw is fitted around an injector axially movably between a tapered surface and a flange. The cylinder screw presses down the flange in a direction to attach the injector to a cylinder head and presses up the tapered surface in a direction to detach the injector from the cylinder head. A stopper is formed annularly at the top of the injector and has a protrusion. With the protrusion being engaged in a positioning groove of the cylinder head, the injector is restricted from being turned in both rotating directions. Thus, the injector can be attached to and detached from the cylinder head with ease by only one cylinder screw without turning the injector. The flange of a retaining nut to which the tightening force of the cylinder screw exerts has a shortened axial length so that deformation in injector constituting members is reduced and changes in the fuel injection characteristics are reduced.

REFERENCES:
patent: 1948557 (1934-02-01), Baur
patent: 2898895 (1959-08-01), Koppel
patent: 3605703 (1971-09-01), Moulds
patent: 4066213 (1978-01-01), Stampe
patent: 4104992 (1978-08-01), Fricker
patent: 4589596 (1986-05-01), Stumpp
patent: 4938193 (1990-07-01), Raufeisen
patent: 4984549 (1991-01-01), Mesenich
patent: 5007401 (1991-04-01), Grohn
patent: 5566658 (1996-10-01), Edwards
patent: 5692477 (1997-12-01), Berger

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