Frank N Busch

US Patent:

6513464, Feb 4, 2003

Filed:

Apr 3, 2002

Appl. No.:

10/114789

Inventors:

Frank Busch - Wauconda IL 60084

International Classification:

F02B 7502

US Classification:

123 65VA, 123 65 VC, 123 73 V, 137855

Abstract:

The stratified two cycle engine comprises: a cylinder having an upper end and a lower end, a head at the upper end and fuel and air intake ports at the lower end; at least one spark plug mounted in the head; a sleeve in the cylinder having an upper end and a lower end and the cylinder having exhaust ports at the upper end which are covered and uncovered by the upper end of the sleeve; a piston in the sleeve and connected to a crank shaft; a first exhaust manifold at one side of the cylinder at the upper end thereof adjacent one exhaust port in the cylinder and having first exhaust gas throttle valve means associated therewith; at least a first and a second fuel and air intake manifolds at one side of the cylinder and at the other side of the cylinder in communication with first and second fuel and air intake ports in the cylinder; throttle valve means in each intake manifold; a reed cage assembly in each intake manifold adjacent the associated intake port for injecting a fuel and air mixture into the cylinder; control means for controlling the injection of fuel and air mixture into the cylinder so that fuel and air mixture is injected into the cylinder through only one intake port when the engine is operating from zero to one half full load; and an operating connection between the crank shaft and the sleeve for causing reciprocation of the sleeve relative to movement of the piston to open and close the exhaust ports and the air and fuel intake ports in the cylinder.

US Patent:

44473710, May 8, 1984

Filed:

Jun 18, 1982

Appl. No.:

6/390069

Inventors:

Frank R. Busch - Wauconda IL

International Classification:

F02M 722

US Classification:

261 44E

Abstract:

A side draft carburetor is disclosed in which an eccentrically mounted throttle plate is provided with an aperture for passage of air therethrough and for movement of the throttle plate over a nozzle block interferingly projecting into the main air passageway of the carburetor. The nozzle block is equipped with a nozzle for introducing fuel into a venturi passageway formed between the nozzle block and a cam surface located about the rotational axis of the throttle plate; the cam surface moving with the throttle plate to vary the size and shape of the venturi passageway at the point of fuel introduction. This produces a finely atomized fuel mixture substantially centrally of the main air stream for optimum diffusion of the incoming fuel. In a modified version, the variable venturi passageway is effected by a flexible leaf spring responsive to a cam surface movable with the throttle plate to produce a passageway varying between convergent and divergent form as the throttle plate moves between closed and open positions. In both embodiments, the variable venturi passageway is restricted to a finite cross section of the carburetor's main intake air passageway defined by the effective aperture through the throttle plate, the nozzle block, the cam surface and laterally spaced barriers between the cam and the nozzle block.