Integrated injection line and injection nozzle
AssigneeStanadyne, Inc.
InventorsMichael J. O'Brien, Robert W. Martin, Jr., Kenneth H. Klopfer
Life of this patent
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Abstract
Fuel injector having a sleeve-shaped connector (22), injection nozzle (12) and injection line (14).
Claims12
An integrated injection line and nozzle for a vehicle fuel injection system comprising:
- a tubular injection line having oppositely disposed proximal and distal ends, a proximal end portion, and a passage extending from the proximal end to the distal end;
- a sleeve-shaped connector including oppositely disposed inner and outer surfaces and an opening extending from the inner surface to the outer surface, the inner surface defining a cross-sectional shape;
- and
- an injection nozzle including a longitudinal bore and a body portion having an outer surface and an opening extending from the longitudinal bore to the outer surface, the outer surface defining a cross-sectional shape which is complementary to the cross-sectional shape of the inner surface of the connector;
- wherein the body portion of the nozzle is disposed within the connector, the outer surface of the body portion frictionally engaging the inner surface of the connector and the proximal end portion of the injection line is fixedly mounted within the opening of the connector, the proximal end of the injection line being coplanar with the inner surface of the connector and the passage of the injection line being aligned with the opening of the body portion of the injection nozzle.
A method for mounting a tubular injection line to an injection nozzle, the injection line having oppositely disposed proximal and distal ends, a proximal end portion, and a passage extending from the proximal end to the distal end, the injection nozzle having a longitudinal bore, upper and lower portions, and a body portion disposed intermediate the upper and lower portions, the body portion having an outer surface and an opening extending from the longitudinal bore to the outer surface, the outer surface of the body portion having a cross-sectional shape, the method comprising the steps of:
- inserting the proximal end portion of the injection line into a transverse bore of longitudinally extending connector until the proximal end of the injection line is proximate to the longitudinal axis of the connector;
- fixedly mounting the injection line to the connector;
- machining an axial bore through the connector and the proximal end portion of the injection line forming a continuous inner surface defining a cross-sectional shape which is complementary to the cross-sectional shape of the outer surface of the body portion of the injection nozzle;
- inserting the lower portion of the injection nozzle through the axial bore until the body portion is positioned in the axial bore with the opening of the body portion aligned with the passage of the injection line;
- and
- fixedly mounting the connector to the injection nozzle.
Dependencies are inferred from the claim text.