Orbital Engine Company (Australia) Pty Limited

Orbital Engine Company Proprietary Limited

Orbital Engine Company Pty. Ltd.

Gregory B Bell

Christopher K Schlunke

Stephen Reinhard Malss

David Richard Worth

Darren A Smith

Sam R Leighton

John W Paluch

Heiner Louis

Lyle A Gildersleeve

Supercharged internal combustion engine

Induction system of internal combustion engines

Exhaust gas recirculation in a two stroke engine

Fuel/gas delivery system for internal combustion engines

A multi-cylinder two-stroke cycle engine according to the invention incorporates a plurality of cylinders (1,2,3) arranged in line with each cylinder having at least two inlet ports one on each of the two opposite longitudinal sides of the in-line cylinders (1,2,3). Air passages (67,77) extend along said opposite sides to supply air from a supercharger (not shown) to the respective inlet ports. An air control valve (68) is operable to selectively control air supply to one or both of said air passages (67,77) whereby optimum combustion conditions are obtained for various engine load/speed conditions. A centrifugal supercharger arrangement is also disclosed, the supercharger being coupled to the engine crankshaft and interposed between the cylinder block and the engine flywheel.

Supercharged engines

A spark ignited four stroke cycle internal combustion engine having variable volume combustion chamber, ignition means to provide an ignition point in said combustion chamber, a valve controlled inlet port communicating the combustion chamber with an air induction passage through which air flows to the engine. The induction passage including a wall shaped to direct at least part of the air flowing along said wall portion when the port is open in a generally helical path about the port axis and when the port is open, the air flowing is directed into the combustion chamber to establish therein a generally helical air flow. A fuel injector nozzle located to deliver fuel into the induction passage on the opposite side of the inlet port axis to said wall portion of the induction passage and on a trajectory through the port when open to form an ignitable fuel cloud at the ignition point.

Engines

Growing community of inventors

Woodlands, Australia

Gregory B Bell