Environmentally harmonious fuel tank
OwnerWalter Holzerinventor
Life of this patent
Estimating the term…
Abstract
A fuel tank, for a vehicle or heating plant, includes a flexible air container therein, forming a fuel space outside the air container. The air container seals the interior of the fuel tank to the exterior and the fuel vapors in the fuel tank are drawn off and directed into the engine and burned. The vapors can be so drawn off by the vacuum produced by the engine, or by a pump. Fresh air from the exterior is drawn into and through the air container and directed into the fuel mixture for combustion, clearing out any vapors that may have collected in the air container. A filter is controllably utilized for adsorbing, or absorbing the vapors, and fresh air is controllably drawn into the filter for clearing those vapors out and directing them into the fuel mixture for combustion.
Claims8
Apparatus for controlling fuel in connection with a combustion engine and a fuel tank, wherein liquid fuel in the tank vaporizes, comprising,
- means including a conduit for suctioning the vapors from the tank and conducting them to the combustion engine, and
- a flexible air container in the tank above the liquid fuel,
- the flexible air container being entirely self contained and being entirely continuous and closed except for a ventilation opening formed by a flange, the flange being secured to the tank and continuing said ventilation opening through an opening in the tank to the exterior,
- the container sealing the tank to the exterior through the tank opening and being sufficiently large to substantially fill the tank when the tank is empty of liquid fuel.
Dependencies are inferred from the claim text.