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Variable Compression Ratio Direct Injection Engine

Abstract: 

A variable compression ratio, direct injection engine. A rotatable collar in operative engagement with a cylinder liner holder assembly is utilized to raise and lower the cylinder liner relative to the crankshaft, thereby varying the compression ratio. A double chain drive mechanism maintains a constant valve timing relationship as the cylinder liner is raised and lowered. The head assembly is provided with a removable fire deck and a tapered intake port.

Patent Number: 
4,873,947
Date Of Issue: 
10/17/1989
Inventors: 

Thomas W. Ryan, III;Milan J. Maymar;Orin M. Anderson