Fuel vapor system
OwnerFranklyn D. Dykstrainventor
Life of this patent
Estimating the term…
Abstract
This system uses the fuel tank not only to store fuel, but as a generator to create a raw overly rich air/fuel mixture through the use of a bubble pan in the bottom of the fuel tank. This raw air/fuel mixture is then measured by sensors linked to a computer and additional air or fuel may be added by computer demand. Thus the computer can completely regulate the air/fuel mixture at all times in an ever changing way to meet climatic, engine, and load conditions. This total control of the air/fuel mixture in flexible and ever changing way should result in optimum combustion, a clean burn, extreme economy, and maximum engine power. This then is a system of computer controlled mixture.
Claims13
A fuel vapor system for an internal combustion engine that creates a vacuum during operation comprising:
- a. a reservoir that holds liquid fuel and that has a space above the fuel;
- b. a bubble pan under the fuel in the reservoir, the bubble pan defining a multiplicity of small holes;
- c. an air inlet tube that connects the bubble pan to the atmosphere;
- d. a fuel vapor passage leading from the space in the reservoir to the engine, the engine drawing fuel vapor having a first air/fuel ratio from the space in the reservoir in a downstream direction through the fuel vapor passage during operation and thereby drawing air through the air inlet and the bubble pan and through the fuel in the reservoir to the space in the reservoir to vaporize some of the fuel to the first air/fuel ratio;
- and
- e. means for changing the first air/fuel ratio in the fuel vapor passage to deliver a predetermined air/fuel ratio to the engine, wherein the means for changing the first air/fuel ratio in the vapor passage comprises:
- i. means for sensing the first air/fuel ratio;
- ii. means for introducing auxiliary air into the fuel vapor passage;
- iii. means for introducing auxiliary fuel into the fuel vapor passage;
- iv. means for controlling the means for introducing auxiliary air and the means for introducing auxiliary fuel to change the first air/fuel ratio to the predetermined air/fuel ratio;
- and
- v. means for sensing the predetermined air/fuel ratio.
Apparatus for delivering fuel to an internal combustion engine that creates an engine vacuum during operation comprising:
- a. a reservoir having fuel therein and a reservoir space above the fuel;
- b. means for evaporating the fuel at a first air/fuel ratio into the reservoir space;
- c. a fuel vapor passage between the reservoir space and the engine such that the engine vacuum draws the evaporated fuel at the first air/fuel ratio from the reservoir space in a downstream direction into the fuel vapor passage and toward the engine;
- d. an auxiliary air inlet in the fuel vapor passage;
- e. an auxiliary fuel inlet in the fuel vapor passage;
- and
- f. means for controlling the auxiliary air inlet and the auxiliary fuel inlet to change the first air/fuel ratio to a second air/fuel ratio,
- so that fuel with the second air/fuel ratio is delivered toward the engine.
A method of delivering fuel to an internal combustion engine comprising the steps of:
- a. evaporating fuel at a first air/fuel ratio into a space;
- b. drawing the fuel at the first air fuel ratio in a downstream direction toward the engine through a fuel vapor passage between the space and the engine;
- c. comparing the first air/fuel ratio with an ideal fuel ratio;
- d. changing the first air/fuel ratio to [an] the ideal air/fuel ratio in response to comparing the first and ideal air/fuel ratios comprising the steps of:
- i. measuring the first air/fuel ratio at a first location in the fuel vapor passage;
- and
- ii. changing the first air/fuel ratio to the ideal air/fuel ratio downstream of the first location;
- and
- e. delivering the fuel at the ideal air/fuel ratio to the engine.
Dependencies are inferred from the claim text.