Bottom feed fuel bowl
AssigneeK&N Engineering, Inc.
InventorJohn Kyle
Life of this patent
Estimating the term…
Abstract
An apparatus and method are provided for a fuel bowl to supply liquid fuel to a carburetor. The fuel bowl comprises a float chamber and a fuel inlet cavity which receives a fuel delivery insert. The fuel delivery insert receives a fuel inlet valve and comprises passages to direct incoming fuel to a bottom portion of the float chamber. A float comprises an elongate member rotatably hinged within a float cavity of the fuel delivery insert, such that the float rises according to a quantity of fuel within the float chamber. The fuel inlet valve supplies liquid fuel to the float chamber by way of the passages according to the operation of the float within the float chamber. A ventilation chamber allows air and fuel vapors to exit as liquid fuel enters the float chamber while preventing liquid fuel from entering into the carburetor.
Claims14
A fuel bowl assembly to supply liquid fuel to a carburetor, comprising:
- a rigid body comprising a float chamber and a fuel inlet cavity;
- a fuel delivery insert configured to be fastened within the fuel inlet cavity;
- an inlet valve seat extending from the top of the fuel delivery insert to a float cavity of the fuel delivery insert;
- a float rotatably hinged within the float chamber;
- a fuel inlet valve operably coupled with the float to allow liquid fuel to enter a bottom portion of the float chamber;
- and
- a ventilation chamber configured to allow air to exit the float chamber as fuel level rises.
A fuel delivery insert for a fuel bowl assembly of a carburetor, comprising:
- a solid body configured to be fastened within a fuel inlet cavity of the fuel bowl assembly;
- a float cavity for hingedly receiving a float;
- an inlet valve seat extending from the top of the solid body to the float chamber;
- and
- at least one passage for directing liquid fuel from the inlet valve seat to a bottom portion of the fuel bowl.
Dependencies are inferred from the claim text.