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US 2024/0295206 A1Published application
Fuel system having fuel injector boot assembly with air gap standoff protrusions
AssigneeCaterpillar Inc.
InventorKenth I. Svensson
Life of this patent
Estimating the term…
Abstract
A boot in a boot assembly in a fuel system includes an elongate boot body defining a longitudinal axis and having an inner boot surface. An injector portion of the boot has a window formed therein receiving an electrical connector of a fuel injector. The injector portion also includes a plurality of radially inward standoff protrusions in contact with the fuel injector to maintain an air gap clearance between an inner surface of the boot and the fuel injector.
Claims20
A fuel system comprising:
- a fuel injector including an injector housing having a fuel inlet and a fuel outlet formed therein, and an electrical connector projecting from the injector housing;
- a fuel conduit connected to the fuel injector;
- a boot including an elongate boot body defining a longitudinal axis and having an inner boot surface extending circumferentially around the longitudinal axis and forming a central cavity extending between an injector portion of the elongate boot body receiving the fuel injector, and a conduit portion of the elongate boot body receiving the fuel conduit;
- and
- the injector portion having a window formed at least partially therein receiving the electrical connector, and a plurality of radially inward standoff protrusions in contact with the fuel injector so as to maintain an air gap between the fuel injector and the inner boot surface.
2 more elements
A boot assembly for a fluid system comprising:
- a fuel injector including an injector housing having a fuel inlet and a fuel outlet formed therein, and an electrical connector projecting from the injector housing;
- a boot including an elongate boot body defining a longitudinal axis and having an inner boot surface extending circumferentially around the longitudinal axis and forming a central cavity extending between an injector portion of the elongate boot body receiving the fuel injector, and a conduit portion of the elongate boot body;
- and
- the elongate boot body further including a window formed at least in part in the injector portion and receiving the electrical connector, and a plurality of radially inward standoff protrusions in contact with the fuel injector so as to maintain an air gap between the fuel injector and the inner boot surface.
1 more element
A boot for a fuel injector and conduit assembly in a fuel system comprising:
- an elongate boot body defining a longitudinal axis and including an injector portion, a conduit portion, an outer boot surface, and an inner boot surface extending circumferentially around the longitudinal axis and forming a central cavity extending from an open first axial end formed in the injector portion to an open second axial end formed in the conduit section;
- the elongate body further including a plurality of standoff protrusions within the injector section;
- and
- the plurality of standoff protrusions projecting radially inward from the inner boot surface and defining a circle centered on the longitudinal axis so as to support a fuel injector within the injector portion at an air gap clearance from the inner boot surface.
1 more element
Dependencies are inferred from the claim text.