Fuel injection nozzle assembly
AssigneeDeere & Company
InventorRichard Herbert Stampe
Life of this patent
Estimating the term…
Abstract
A fuel injection nozzle assembly for internal combustion engines includes a nozzle holder encircled by a hollow screw for fastening the nozzle assembly to the cylinder head of the engine. The nozzle holder further includes an annular groove containing a snap ring device. Abutting the snap ring device is a retaining washer and disposed between the retaining washer and the hollow screw is a plurality of conical snap rings acting to urge the nozzle holder into the cylinder head when the hollow screw is tightened to fasten the nozzle assembly to the cylinder head.
Claims4
In a fuel injection nozzle assembly for fastening a fuel injection nozzle to a cylinder head of an internal combustion engine, said assembly having a nozzle holder for holding the nozzle and a hollow screw encircling and slidable on the nozzle holder for fastening the nozzle assembly to the cylinder head, the improvement comprising:
- the nozzle holder having an annular groove provided therein proximate the nozzle between the hollow screw and the nozzle;
- a snap ring device partially and radially engaging the annular groove;
- an annular retaining washer disposed between the hollow screw and the snap ring device partially abutting and radially encircling the snap ring device;
- and annular conical spring means encircling the nozzle holder disposed between the hollow screw and the retaining washer.
In a fuel injection nozzle assembly which is fastened to a cylinder head of an internal combustion engine having a nozzle at one end, a nozzle holder for holding the nozzle, a sleeve encircling the nozzle holder, and a hollow screw encircling and movable on the nozzle holder for fastening the nozzle assembly to the cylinder head, the improvement comprising:
- the nozzle holder having an annular groove provided therein between the hollow screw and the nozzle;
- a snap ring device partially and radially engaging the annular groove;
- an annular retaining means positioned between the hollow screw and the snap ring device partially and radially engaging the snap ring device;
- annular-conical spring means interposed between the hollow screw and the annular retaining washer urging the nozzle holder and the sleeve into the cylinder head.
Dependencies are inferred from the claim text.