Abstract

Apparatus for controlling valve timing in an internal combustion engine locates a first valve port in a first side of the engine cylinder and a second valve port in a second side of the engine cylinder. A first rotating valve disc and a second rotating valve disc are respectively disposed next to the first and second valve port. Each rotating valve disc includes a valve port. Each disc rotates in synchronism with the crankshaft to align its' port with the respective first and second valve ports. A variety of intake devices coupled to the first rotating valve disc control intake air flow into the engine cylinder, and a variety of exhaust devices coupled to the second rotating valve disc control exhaust gas flow from the engine cylinder.

IPC Classes  ?

• F01L 1/12 - Transmitting-gear between valve drive and valve
• F01L 1/02 - Valve drive
• F01L 1/26 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gearValve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines with more than two lift valves per cylinder
• F01L 7/06 - Rotary or oscillatory slide-valve gear or valve arrangements with disc-type valves
• F01L 7/14 - Multiple-valve arrangements
• F02F 1/22 - Other cylinders characterised by having ports in cylinder wall for scavenging or charging