Marine propulsion devices and fuel injection systems for marine propulsion devices
AssigneeBrunswick Corporation
InventorMichael A. Torgerud
Life of this patent
Estimating the term…
Abstract
A marine propulsion device comprises an internal combustion engine that has a piston-cylinder. A fuel injector injects fuel into the internal combustion engine. A fuel rail conveys the fuel to the fuel injector. The fuel rail has an upstream inlet end that receives the fuel and a downstream outlet end that supplies the fuel to the fuel injector. A fuel hose has an upstream inlet end that receives the fuel from a fuel reservoir and a downstream outlet end that discharges the fuel to the inlet end of the fuel rail. A filter element axially extends into at least one of the fuel rail and the fuel hose. The filter element is configured to filter particulate materials from the fuel.
Claims20
A marine propulsion device comprising:
- an internal combustion engine that has a piston-cylinder;
- a fuel injector that injects fuel into the internal combustion engine;
- a fuel rail that conveys the fuel to the fuel injector, the fuel rail having an upstream inlet end that receives the fuel and a downstream outlet end that supplies the fuel to the fuel injector;
- a fuel hose that has an upstream inlet end that receives the fuel from a fuel reservoir and a downstream outlet end that discharges the fuel to the upstream inlet end of the fuel rail;
- and
- a filter element that axially extends into at least one of the fuel rail and the fuel hose, wherein the filter element is configured to filter particulate materials from the fuel.
A filter element for a fuel rail on an internal combustion engine, wherein the fuel rail is configured to convey the fuel from a fuel hose to a fuel injector, and wherein the fuel rail has an upstream inlet end that receives the fuel from the fuel hose and a downstream outlet end that supplies the fuel to the fuel injector, the filter element comprising:
- a body that is configured to axially extend into at least one of the fuel rail and the fuel hose;
- wherein the body comprises an open first end, a closed second end, and a sidewall that axially extends between the open first end and the closed second end, wherein the sidewall defines a passageway that receives fuel via the open first end and conveys the fuel towards the closed second end;
- wherein the sidewall defines at least one window, and further comprises a screen in the at least one window, wherein the fuel radially flows from the passageway through the screen and into the fuel rail;
- and
- wherein the body is radially inwardly tapered from the open first end to the closed second end.
Dependencies are inferred from the claim text.