Fuel injection throttle body
AssigneeHolley Performance Products, Inc.
InventorsDoug Flynn, James Dralle, Amy Gieske, Charles Jenckes, Corey Spainhoward
Life of this patent
Estimating the term…
Abstract
A throttle body fuel injection system including a throttle body with at least one air intake, a fuel injector coupled to the throttle body at a fuel port and an annular ring coupled to the cylindrical inner wall of the air intake. The annular ring includes a primary fuel discharge orifice adjacent to the fuel port and a plurality of secondary fuel discharge orifices arranged radially around the annular ring for spraying atomized fuel into the air intake.
Claims16
A fuel injection throttle body of an internal combustion engine with a reciprocating piston, comprising:
- an air intake including a cylindrical inner wall disposed in a said throttle body;
- an electromechanically controlled fuel injector coupled to the throttle body at a fuel port;
- and
- an annular ring coupled to the cylindrical inner wall of the air intake,
- wherein the annular ring comprises:
- a plurality of secondary fuel discharge orifices;
- a single primary fuel discharge orifice and the plurality of secondary fuel discharge orifices arranged radially around the annular ring, wherein said single primary fuel discharge orifice is larger than said plurality of secondary discharge orifices;
- wherein the annular ring consists of the single primary fuel discharge orifice being adjacent to the fuel port;
- and
- an annular channel that communicatively couples the fuel port and the primary fuel discharge orifice and the plurality of secondary fuel discharge orifices;
- wherein the fuel injector provides positively pressurized fuel through the fuel port into the annular channel, and the primary fuel discharge orifice and the plurality of secondary fuel discharge orifices atomize and spray the fuel into the air intake.
A throttle body with annular fuel injection of an internal combustion engine with a reciprocating piston comprising:
- an air intake including a cylindrical inner wall disposed in a said throttle body;
- an electromechanically controlled fuel injector coupled to the throttle body at a fuel port;
- and
- an annular ring coupled to the cylindrical inner wall of the air intake,
- wherein the annular ring comprises:
- a plurality of fuel discharge orifices arranged radially around the annular ring consisting of a single primary orifice;
- said plurality of fuel discharge orifices having a plurality of secondary orifices which are smaller than said single primary orifice;
- and
- an annular channel that communicatively couples the fuel port and the plurality of fuel discharge orifices;
- wherein the fuel injector provides positively pressurized fuel through the fuel port into the annular channel, and the plurality of fuel discharge orifices atomize and spray the fuel into the air intake.
Dependencies are inferred from the claim text.