Variable fuel delivery system for internal combustion engines
AssigneeInvestment Rarities, Incorporated
InventorCorliss O. Burandt
Life of this patent
Estimating the term…
Abstract
A pivotal air door or velocity blade provides a carburetor and injection action which transitionally changes back and forth in accordance with the door's angular position. The angular position of the air door or velocity blade is controlled by the movement of an upper rocker arm relative to a lower rocker arm. A cam unit acts on a contoured follower surface on the upper rocker arm, and the free end of the upper rocker arm acts against a contoured follower surface on the lower rocker arm, the lower rocker arm in turn acting on the inlet valve of an internal combustion engine.
Claims18
A variable fuel delivery system for an internal combustion engine having a camshaft, a cam on said camshaft and a reciprocable valve member for opening and closing a port in communication with a combustion chamber of the engine, the system comprising means providing an induction path or passage having a horizontal portion for delivery of fuel and air to said combustion chamber via said valve member, an air door pivotally mounted in said horizontal portion of said passage means for movement in said horizontal portion between a substantially closed position in which said pivotal door member is more vertical and a substantially open position in which said door member is more horizontal, a nozzle located adjacent the free end of said door member, passage means leading to said nozzle for supplying fuel to said nozzle, and chamber means for supplying fuel to said passage means for flow to said nozzle, said chamber means being mounted at an elevation relative to said door so that when said door is in its said substantially closed position said nozzle is above the level of fuel in said chamber means so that fuel is prevented from being gravitationally discharged through said nozzle, and when said door is in its said substantially open position, said nozzle is below the level of fuel in said chamber means so that fuel is permitted to gravitationally flow through said passage means and be discharged through said nozzle.
A fuel delivery system for an internal combustion engine having a camshaft, a cam unit on said camshaft and a reciprocable valve member for opening and closing a port in communication with a combustion chamber of the engine, the system comprising an induction pipe having a bottom wall, an upper wall and side walls providing a generally rectangular cross section, generally horizontal passage means providing communication between said induction pipe and said port, an air door having a rectangular configuration corresponding generally to the rectangular cross section of said induction pipe, said air door having an passage or bore extending therethrough from one end to the other end, means for pivotally mounting said one end of said door member adjacent the bottom wall of said induction pipe so that the other end of said door can be swung from a substantially vertical position into a substantially horizontal position, means for supplying fuel to said passage or bore adjacent said one end of said door so that fuel is induced to flow into said combustion chamber by venturi action when said door is substantially vertical and to be injected into said combustion chamber when said door is substantially horizontal, and means supplying air to said induction pipe so that air is drawn into said combustion chamber through said passage means and port when said valve member is open, the amount of air and fuel being delivered into said combustion chamber being dependent upon the position of said door and valve member.
A fuel delivery system for an internal combustion engine having a camshaft, a cam unit on said camshaft and a generally vertical reciprocable valve member for opening and closing a port in communication with a combustion chamber of the engine, the system comprising duct means for conveying air to said combustion chamber via said port when said valve member is open, an air door pivotally mounted in said duct means for supplying fuel into said duct means in a carburetor manner when said door member is in one position and supplying fuel to said combustion chamber in an injection manner when said door member is in a second position, and means for actuating said valve member in relation to the position of said door so as to cause said valve member to be opened by said cam unit in a predetermined relationship with respect to the position of said door.
Dependencies are inferred from the claim text.