| 摘要 |
Abstract An internal combustion engine (30) comprising: a shaft (32); a first lateral cam (50a) fixed to the shaft; a second lateral cam (50b) differentially geared to the first lateral cam for counter rotation about the shaft; wherein the first and second lateral cams each comprise a multilobate first lateral cam surface (57) and a multilobate second lateral cam surface (58) axially spaced from the first lateral cam surface; at least one cylinder module, each cylinder module comprising: a pair of cylinders, the cylinders being diametrically opposed with respect to the shaft with the lateral cams interposed therebetween; a piston(72) in each cylinder, each piston comprising an associated engagement means (136a, 136b) for engaging both the first and second lateral cam surfaces of both lateral cams; and a connecting member (71) connecting the pistons; and wherein reciprocating motion of the pistons in the cylinders in use imparts rotary motion to the shaft via engagement of the engagement means of the pistons with the first and second lateral cam surfaces of the lateral cams. _ _ _ _ 30 ---- -- 30 a 1 46b 146a ---- 146b 40a |
