Adjustable electronic fuel management system for vehicle engines
AssigneeRe-Tech, Inc.
InventorRon Re
Life of this patent
Estimating the term…
Abstract
A fuel management system for reducing pollution when an internal combustion engine is at idle includes a flow control valve located between the fuel tank and the float bowl of the carburetor to reduce the amount of fuel entering the carburetor. A pump is also provided between the fuel tank and the float bowl for removing the existing fuel from the float bowl and conveying it back to the fuel tank when the engine is at idle. The flow control valve in its reduced flow state and the pump are inactivated until the engine reaches a predetermined pressure at which time the existing fuel would be removed by the pump from the float bowl and the flow control valve would permit only a reduced flow of fuel to be conveyed to the float bowl sufficient to keep the engine running.
Claims13
A fuel management system for reducing pollution when an internal combustion engine is at idle wherein the engine includes a carburetor having a float bowl and fuel is fed from a fuel tank to the float bowl, comprising fuel flow control valve means between said fuel tank and said float bowl for controlling the amount of fuel flow from said fuel tank to said carburetor to selectively permit full fuel flow and reduced fuel flow, pump means communicating with said float bowl for selectively removing fuel from said float bowl, and control means connected to said fuel flow control valve means and to said pump means for activating said fuel flow control valve means to its reduced fuel flow condition when said engine is at a predetermined temperature and at idle and for activating said pump means and controlling the period of time of activation of said pump means when said engine is at idle whereby fuel is removed from said float bowl by said pump means and the flow of fuel to said float bowl through said fuel flow control valve means is reduced when said engine is at idle.
Dependencies are inferred from the claim text.