Patent ID: 6202605
Filing Date: 2001-03-20
Classification: F01B,F02B

Abstract:
Arrangement of a two cycle combustion engine (10,100) having internal combustion, comprising a number of engine cylinders (21; 21-1-21-5), which are arranged in an annular series around a common middle drive shaft (11) and which have cylinder axes running parallel to the drive shaft, each cylinder including a pair of pistons (44,45) movable towards and away from each other and a common, intermediate working chamber (K) for each pair of pistons, while each piston (44,45) is provided with its axially movable piston rod (48,49), the free outer end of which forms via a support roller (53,55) a support against its curve-shaped, ""sine""-like curve shaped, cam guide device (12a,12b), which is arranged at each of opposite ends of the cylinder (21; 21-1-21-5) and which controls movements of the piston relative to the associated cylinder,characterized in thatthe two pistons (44,45) in each cylinder (21; 21-1-21-5) have mutually differing piston phases, which are controlled by mutually differing cam guide devices (12a,12b),the cam guide devices (12a,12b) being designed with equivalent mutually differing ""sine""-like planes (8a,8b),the respective cam guide devices (12a, 12b) of the two pistons (44,45), in certain portions (1a-3a, 5a-7a; 1b-3b, 5b-7b) of the ""sine""-like plane (8a,8b) are phase-displaced relative to each other and that remaining portions (4a,4b) of the ""sine""-like planes are in mutual phase.