Positive pressure vapor fuel injection system
OwnerJoseph Day, Jr.inventor
Life of this patent
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Abstract
A vapor fuel injection system including an air pump having dedicated air cylinders assigned to individual engine cylinders and adapted to produce timed charges of pre-heated air adapted to push timed charges of fuel through a heat exchanger where the timed charges of fuel are converted into metered charges of fuel vapor. The charges of fuel vapor are subsequently pushed into and through fuel vapor delivery nozzles defined in the respective guide bodies of respective intake valve assemblies. After exiting the guide body of said valve assemblies, the timed charges of fuel vapor mix with intake manifold air and then are fed directly into the engine cylinders for combustion.
Claims17
A positive pressure vapor fuel injection system comprising:
- an air pump adapted to generate timed and metered charges of pre-heated air;
- a fuel injector adapted to emit timed and metered charges of fuel, the charges of air being adapted to push the respective charges of fuel into a heat exchanger where the charges of fuel are converted into respective metered charges of fuel vapor;
- an engine cylinder assembly including a fuel combustion chamber and an engine intake valve with a guide body defining nozzles through which the respective charges of fuel vapor are adapted to be delivered;
- and
- an air intake manifold operatively associated with the engine cylinder assembly and engine intake valve whereby air flowing through the air intake port of said air intake manifold is adapted to mix with the respective charges of fuel vapor at the point of entry into the fuel combustion chamber.
A positive pressure vapor fuel injection system adapted for use in connection with an engine including an air intake manifold operatively associated therewith and an intake valve having an intake valve guide associated therewith, the air intake manifold being positioned in a relationship wherein intake air traveling through the intake manifold is drawn into the engine at a point below the outlet of an intake valve guide injection nozzle associated with the intake valve guide, the fuel injection system comprising means for feeding timed charges of vaporized fuel through the body of said intake valve guide and subsequently mixing the charges of vaporized fuel with said intake air at the point adjacent the outlet of the body of said intake valve guide.
A vapor fuel injection system adapted for delivering timed charges of fuel vapor into an engine including a plurality of cylinders, the system comprising:
- a plurality of fuel injectors operatively associated with the engine cylinders respectively and adapted to emit timed charges of fuel;
- an air pump including a plurality of air cylinders operatively dedicated to the plurality of fuel injectors and the plurality of engine cylinders respectively and adapted to produce timed charges of air,
- a plurality of air delivery conduits extending between the air cylinders and fuel injectors respectively, the conduits being sized and adapted to increase the velocity and temperature of the air flowing therethrough;
- a plurality of heat exchange conduits operatively associated with the plurality of fuel injectors respectively, the timed charges of air being adapted to push the respective timed charges of fuel into and through the heat exchange conduits respectively wherein the timed charges of fuel are converted into timed charges of fuel vapor;
- a plurality of intake valve guide fuel vapor delivery nozzles operatively associated at one end with the plurality of heat exchange conduits respectively and at the other end with the engine cylinders respectively, each of the fuel vapor delivery nozzles being defined in respective intake valve guide bodies through which the respective timed charges of fuel vapor are adapted to flow;
- a control relief valve operatively associated with each of the heat exchange conduits for controlling the pressure of the timed charges of fuel vapor;
- and
- an air intake manifold operatively associated with the engine cylinders and adapted to deliver charges of intake air into the engine cylinders respectively, the air intake manifold including an air intake port and the fuel vapor delivery nozzles being positioned and oriented relative to one another whereby the timed charges of fuel vapor and intake air are mixed together at the point of entry into the respective engine cylinders.
In a vapor fuel injection system adapted for delivering timed charges of fuel vapor into an engine cylinder, the system including an intake valve having a guide body surrounded by a collar, the collar defining a first fuel vapor delivery passage in vapor flow communication with a second fuel vapor delivery passage extending through the guide body and terminating at the distal end of said guide body into a vapor fuel delivery nozzle.
Dependencies are inferred from the claim text.