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.
Claims20
A fuel bowl assembly to supply liquid fuel to a carburetor, comprising:
- a float chamber to store a quantity of fuel;
- a fuel inlet valve to supply the fuel to the float chamber;
- a fuel delivery insert comprising one or more passages to direct the fuel from the fuel inlet valve to a bottom portion of the float chamber;
- and
- a ventilation chamber configured to allow at least air to exit as liquid fuel enters the float chamber.
A fuel system to supply a mixture of liquid fuel and air to an intake manifold of an internal combustion engine, comprising:
- a carburetor configured to be mounted onto the intake manifold;
- at least one reservoir of liquid fuel for use by the carburetor;
- a fuel delivery insert to direct liquid fuel to a bottom of the at least one reservoir;
- and
- a throttle linkage system to facilitate operating the carburetor during operation of the internal combustion engine.
A method for reducing aeration of liquid fuel within a fuel bowl of a carburetor, comprising:
- routing aerated fuel into the fuel bowl by way of a fuel inlet valve;
- providing one or more passages that are shaped to encourage the aerated fuel to assume an unaerated state;
- directing the unaerated fuel into a bottom of a fuel reservoir;
- filling an entirety of the fuel reservoir with the unaerated fuel;
- and
- supplying the unaerated fuel to one or more calibrated orifices disposed within the fuel reservoir.
Dependencies are inferred from the claim text.