Patent ID: 8327819

Claim:
A constant velocity, piston motion to gearshaft rotation, internal combustion engine/design which comprises a gearshaft member extending through at least one reciprocating rodrack assembly providing rotation of said gearshaft member, each said rodrack assembly comprising at least one pair of coaxial linearly opposing pistons and gearshaft teeth engaging means, said gearshaft member comprising a series of teeth arranged about the diameter thereof but offset as to provide engagement with a rodrack assembly in one direction and non-engagement in the opposite, said gearshaft member also comprising rodrack engagement reversing grooves and each said rodrack assembly also comprising engagement guide shafts, thus providing reversing points between the end of each stroke of the pistons and total engagement throughout the stroke and the reversing stroke of the pistons and defining means for converting linear motion to rotary motion or rotary motion to linear motion.