Circular channeled forced induction fuel bowl system with fuel syphoning technology

Abstract

An improved large capacity fuel bowl designed to supply liquid fuel to a forced induction carburetor. The fuel system utilizes a single or dual float to control the fuel level from one or two needle valves which direct liquid fuel through two or four circular channels which flow into to four or eight mid-level entry points depending on the configuration, which are angled at various degrees. The angled entry points inside the fuel cavity create a fuel syphoning effect, keeping the fuel stable and not allowing it to aerate under various pressures which increases pounds an hour of fuel flow into the fuel cavity. The springless float is hinged to the main structure in the fuel bowl system so it can pivot/oscillate efficiently, controlling fuel levels without restriction to effectively deliver more or less fuel depending on changes in manifold atmospheric pressures.

Claims

1. A fuel bowl system for a carburetor including: a fuel chamber or cavity that stores fuel prior to consumption for use by the carburetor; a needle valve that delivers fuel to circular channels which feed four inlets into the fuel chamber per quadrant; one or two caps attached to the outer fuel bowl system to seal and allow a fuel line inlet to supply fuel to the needle valve; a hinged float used to monitor the fuel level to open and close the needle valve per fuel consumption needs.

2. The fuel bowl of claim 1, wherein the fuel bowl system circular channels feeding the four discharge points into the fuel cavity create a pressure differential which creates fuel syphoning upon fuel entering the fuel bowl cavity.

3. The fuel bowl of claim 2, wherein the syphoned fuel is stabilized upon high atmospheric pressure changes eliminating aeration of the liquid fuel.

4. The fuel bowl of claim 3, wherein there is one needle valve per venturi (priority feed per quadrant) of a carburetor to maximize fuel delivery for consumption.

5. The fuel bowl of claim 4, wherein there is an end cap design that ensures a tight seal to form the circular channels which feed the four inlets per quadrant, unlike other designs that use inserts or additional pieces.

6. The fuel bowl of claim 1, which eliminates the requirement for float spring needed for fuel control and hinges directly to the fuel bowl system eliminating any need for additional hardware.

7. The fuel bowl of claim 4, wherein wide radius circular channeling is used for increased pounds per hour of liquid fuel flow (no restriction).

Description

BRIEF DESCRIPTION OF DRAWINGS

[0011] The following drawings refer to the embodiments of the present invention. It should be understood that the description of the drawings are provided purely for the purpose of illustration and exemplification only and are in no way to be taken as limitative of the scope of the present invention:

[0012] FIG. 1 is a view of the inside cap fuel channeling system cover which attaches to FIG. 3 to form the circular channel reservoir.

[0013] FIG. 2 is an outside view of FIG. 1 and is an embodiment of the end cap that attaches to the outside of the fuel bowl system which seals the unit to FIG. 3.

[0014] FIG. 3 is a side view of the fuel bowl system before FIGS. 1 and 2 is attached. It shows a view of the fuel channels which create fuel syphoning.

[0015] FIG. 4 is an inside view of the fuel bowl showing the large internal fuel cavity. This embodiment exemplifies a dual needle valve configuration.

[0016] FIG. 5 is the outside view of FIG. 4 without FIG. 1 and FIG. 2 attached to its ends.

DETAILED DESCRIPTION OF THE INVENTION

[0017] The quad or dual circular channel (3) forced induction fuel bowl with fuel syphoning technology utilizes channels (3) to deliver fuel to the fuel bowl system to allow a carburetor to have the proper fuel capacity in a forced induction or naturally aspirated scenario. The fuel bowl system (12) can be in two forms; one being a single needle valve or, two, being a dual needle valve configuration. For a single configuration the needle valve and fuel channeling system is located on the back side of the fuel bowl cavity (8) and uses one float to control the fuel level; only one inlet (1) as its fuel source is used in this configuration. In a dual configuration there will be one needle valve and fuel channeling system (3) on opposing sides or ends of the fuel bowl cavity (8) with independent floats for fuel level control that increases fuel flow capacity. The mid feed discharge (4) allows unaerated fuel to be delivered to the circular channeling (3). When in a forced induction state, the fuel bowl systems (12) responsibility is to maintain the proper fuel level while allowing a 1:1 pressure ratio increase. The fuel and manifold atmospheric pressure increases while the engine is consuming the fuel and maintaining the proper level upon atmospheric pressure changes in the internal combustion engine. This pressure can range from 0-150 psi. The fuel bowl system (12) consists of a large capacity fuel cavity (8) with circular fuel delivery channels (3) that are completed by the outer caps (FIGS. 1 & 2) that are attached by seven screws (5) and sealed by two O-rings per side. The outer cap includes a straight inlet (1) to reduce fuel drag and is where the fuel line is attached. One or two needle valves direct fuel in the circular channels (3) and allow the channels to distribute the liquid fuel into the fuel bowl cavity (8). When fuel is forced through these circular channels (3) it creates a pressure differential directing fuel into the four or eight fuel distribution outlets where they merge together creating a syphoning effect as the liquid fuel enters the cavity (8). When the fuel is distributed in this manner, as per the needs of the internal combustion engine and manifold atmospheric pressure demands the fuel level is properly maintained by the float which is attached using the float housing (7) allowing the maximum amount of fuel in the fuel bowl cavity (8) to be on reserve for the internal combustion engine demands. This effect allows the fuel channels (3) to fill with fuel, priming the system for immediate fuel consumption upon atmospheric pressure referencing to the engine and the fuel pressure regulator. The syphoning effect (3) upon entry to the fuel cavity (8) reduces aeration and stabilizes the fuel with its nonrestrictive channels (3) and wide sweeping radiuses to a merge point into the fuel bowl cavity (8) which is important through the major increase of pressures and pressure change. This method is important because when one channel of fuel is larger than another and at a merge point in the fuel bowl cavity (8) it will create a syphon effect pulling more fuel from the overall channeling (3) thus an increase of pounds per hour of fuel flow and not allowing aeration into the fuel cavity (8). If fuel is mixed with air bubbles it will change the calibration of the carburetor upon fuel delivery to the engine because there will be un metered air going into the main well of the metering block or plate. This present design prohibits that from ever happening. The construction of the fuel bowl system (FIG. 4&5) utilizes four holes (10) to allow the fuel bowl bolts to protrude through the fuel bowl cavity (8) and the metering block or plate to allow the fuel bowl system (12) to fasten to the carburetor main body. As part of the fuel bowl system (12) the float attachment hinge (7) is integrated within the fuel bowl system (12) and requires only a 1.5 inch pin to attach the float to the fuel bowl system (12). The float hinge pin is installed by using the inch hole to insert the pin into the float keeping the float suspended for proper level operation (11) and utilizes a 1/16 NPT plug to ensure it doesn't leak any fuel while under pressure during normal operation. The fuel bowl system (12) also has a diaphragm housing (9) integrated in the bottom of the fuel bowl cavity (8). It is designed to store unaerated fuel for proper carburetor function while opening the throttle blades. This cavity will direct unmetered and unaerated fuel into the main body of the carburetor allowing the internal combustion engine to accelerate upon throttle positioning without going lean (or lack of fuel causing a stumble and poor operation).