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US 2024/0295205 A1Published application
Fuel system having fuel injector boot assembly with integrated filter
AssigneeCaterpillar Inc.
InventorKenth I. Svensson
Life of this patent
Estimating the term…
Abstract
A boot in a fuel system includes a boot wall having a window formed therein receiving an electrical connector of a fuel injector, and a filter attached to the boot wall. An air gap is defined between the fuel injector and the boot, and a filtered air flow path extends through the filter to the air gap. The boot may be implemented in an assembly of a fuel injector and a double-walled fuel conduit such as in a fuel system for an internal combustion engine.
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 positioned about the fuel injector and the fuel conduit, and including a boot wall having a window formed therein receiving the electrical connector, and a filter attached to the boot wall;
- and
- an air gap is defined between the fuel injector and the boot, and a filtered air flow path extends through the filter to the air gap.
2 more elements
A boot assembly for a fluid system comprising:
- an elongate boot body defining a longitudinal axis and including a boot wall extending circumferentially around the longitudinal axis and forming a central cavity extending axially between an open first axial end and an open second axial end;
- the boot wall having formed therein a window at a location axially between the open first axial end and the open second axial end, and an air opening at a location that is at least one of circumferentially offset or axially offset from the window;
- and
- a filter attached to the elongate boot body so as to form a filtered air flow path through the air opening into the central cavity.
1 more element
A boot for a fuel injector and fuel conduit assembly comprising:
- an elongate boot body defining a longitudinal axis and including a boot wall extending circumferentially around the longitudinal axis and forming a central cavity extending axially between an open first axial end and an open second axial end;
- the boot wall having formed therein a window at a location axially between the open first axial end and the open second axial end, and an air opening at a location that is at least one of circumferentially offset or axially offset from the window;
- and
- a filter holder attached to the boot wall and positioned adjacent to the opening.
1 more element
Dependencies are inferred from the claim text.